+2011-08-08 Diego Novillo <dnovillo@google.com>
+
+ * Makefile.in (LTO_STREAMER_H): Add DIAGNOSTIC_H.
+ (DATA_STREAMER_H): New.
+ (GIMPLE_STREAMER_H): New.
+ (TREE_STREAMER_H): New.
+ (STREAMER_HOOKS_H): New.
+ (OBJS): Add data-streamer.o, data-streamer-in.o, data-streamer-out.o,
+ gimple-streamer-in.o, gimple-streamer-out.o, streamer-hooks.o,
+ tree-streamer.o, tree-streamer-in.o and tree-streamer-out.o.
+ (data-streamer.o): New.
+ (data-streamer-in.o): New.
+ (data-streamer-out.o): New.
+ (gimple-streamer-in.o): New.
+ (gimple-streamer-out.o): New.
+ (streamer-hooks.o): New.
+ (tree-streamer.o): New.
+ (tree-streamer-in.o): New.
+ (tree-streamer-out.o): New.
+ (lto-cgraph.o): Add dependency on DATA_STREAMER_H and
+ TREE_STREAMER_H.
+ (lto-streamer-in.o): Add dependency on DATA_STREAMER_H,
+ GIMPLE_STREAMER_H and TREE_STREAMER_H.
+ (lto-streamer-out.o): Add dependency on DATA_STREAMER_H,
+ GIMPLE_STREAMER_H and TREE_STREAMER_H.
+ (lto-streamer.o): Add dependency on STREAMER_HOOKS_H.
+ (ipa-prop.o): Add dependency on DATA_STREAMER_H and
+ TREE_STREAMER_H.
+ (ipa-inline-analysis.o): Likewise.
+ (ipa-pure-const.o): Likewise.
+ * data-streamer-in.c: New.
+ * data-streamer-out.c: New.
+ * data-streamer.c: New.
+ * data-streamer.h: New.
+ * gimple-streamer-in.c: New.
+ * gimple-streamer-out.c: New.
+ * gimple-streamer.h: New.
+ * ipa-inline-analysis.c: Include data-streamer.h.
+ * ipa-prop.c: Include data-streamer.h.
+ * ipa-pure-const.c: Include data-streamer.h.
+ * lto-cgraph.c: Include data-streamer.h.
+ * lto-section-in.c (lto_input_uleb128): Move to data-streamer-in.c.
+ (lto_input_widest_uint_uleb128): Likewise.
+ (lto_input_sleb128): Likewise.
+ (bp_unpack_var_len_unsigned): Likewise.
+ (bp_unpack_var_len_int): Likewise.
+ * lto-section-out.c (lto_output_uleb128_stream): Move to
+ data-streamer-out.c.
+ (lto_output_widest_uint_uleb128_stream): Likewise.
+ (lto_output_sleb128_stream): Likewise.
+ (bp_pack_var_len_unsigned): Likewise.
+ (bp_pack_var_len_int): Likewise.
+ * lto-streamer-in.c: Include data-streamer.h and
+ gimple-streamer.h.
+ (struct string_slot): Remove. Update all users.
+ (lto_tag_check_set): Make extern.
+ (lto_tag_check_range): Move to lto-streamer.h.
+ (lto_tag_check): Likewise.
+ (hash_string_slot_node): Remove. Update all users.
+ (eq_string_slot_node): Remove. Update all users.
+ (string_for_index): Move to data-streamer-in.c
+ (input_string_internal): Likewise.
+ (input_string_cst): Move to tree-streamer-in.c.
+ (input_identifier): Likewise.
+ (lto_input_string): Move to data-streamer-in.c
+ (input_record_start): Move to data-streamer.h
+ (canon_file_name): Use new definition of struct string_slot
+ from data-streamer.h.
+ Set S_SLOT.LEN.
+ (lto_input_location): Make extern.
+ (lto_input_chain): Move to tree-streamer-in.c.
+ (lto_init_eh): Make extern.
+ (input_phi): Move to gimple-streamer-in.c.
+ (input_gimple_stmt): Likewise.
+ (input_bb): Likewise.
+ (unpack_ts_base_value_fields): Move to tree-streamer-in.c.
+ (unpack_ts_real_cst_value_fields): Likewise.
+ (unpack_ts_fixed_cst_value_fields): Likewise.
+ (unpack_ts_decl_common_value_fields): Likewise.
+ (unpack_ts_decl_wrtl_value_fields): Likewise.
+ (unpack_ts_decl_with_vis_value_fields): Likewise.
+ (unpack_ts_function_decl_value_fields): Likewise.
+ (unpack_ts_type_common_value_fields): Likewise.
+ (unpack_ts_block_value_fields): Likewise.
+ (unpack_ts_translation_unit_decl_value_fields): Likewise.
+ (unpack_value_fields): Likewise.
+ (lto_materialize_tree): Likewise.
+ (lto_input_ts_common_tree_pointers): Likewise.
+ (lto_input_ts_vector_tree_pointers): Likewise.
+ (lto_input_ts_complex_tree_pointers): Likewise.
+ (lto_input_ts_decl_minimal_tree_pointers): Likewise.
+ (lto_input_ts_decl_common_tree_pointers): Likewise.
+ (lto_input_ts_decl_non_common_tree_pointers): Likewise.
+ (lto_input_ts_decl_with_vis_tree_pointers): Likewise.
+ (lto_input_ts_field_decl_tree_pointers): Likewise.
+ (lto_input_ts_function_decl_tree_pointers): Likewise.
+ (lto_input_ts_type_common_tree_pointers): Likewise.
+ (lto_input_ts_type_non_common_tree_pointers): Likewise.
+ (lto_input_ts_list_tree_pointers): Likewise.
+ (lto_input_ts_vec_tree_pointers): Likewise.
+ (lto_input_ts_exp_tree_pointers): Likewise.
+ (lto_input_ts_block_tree_pointers): Likewise.
+ (lto_input_ts_binfo_tree_pointers): Likewise.
+ (lto_input_ts_constructor_tree_pointers): Likewise.
+ (lto_input_ts_target_option): Likewise.
+ (lto_input_ts_translation_unit_decl_tree_pointers): Likewise.
+ (lto_input_tree_pointers): Likewise.
+ (lto_get_pickled_tree): Likewise.
+ (lto_get_builtin_tree): Likewise.
+ (lto_read_tree): Likewise.
+ (lto_input_integer_cst): Likewise.
+ (lto_input_tree): Likewise.
+ * lto-streamer-out.c: Include data-streamer.h,
+ gimple-streamer.h and streamer-hooks.h.
+ (struct string_slot): Move to data-streamer.h.
+ (hash_string_slot_node): Likewise.
+ (eq_string_slot_node): Likewise.
+ (lto_string_index): Move to data-streamer-out.c.
+ (lto_output_string_with_length): Likewise.
+ (lto_output_string): Likewise.
+ (output_string_cst): Move to tree-streamer-out.c.
+ (output_identifier): Likewise.
+ (output_zero): Move to data-streamer-out.c
+ (output_uleb128): Likewise.
+ (output_sleb128): Likewise.
+ (output_record_start): Move to data-streamer.h
+ (pack_ts_base_value_fields): Move to tree-streamer-out.c.
+ (pack_ts_real_cst_value_fields): Likewise.
+ (pack_ts_fixed_cst_value_fields): Likewise.
+ (pack_ts_decl_common_value_fields): Likewise.
+ (pack_ts_decl_wrtl_value_fields): Likewise.
+ (pack_ts_decl_with_vis_value_fields): Likewise.
+ (pack_ts_function_decl_value_fields): Likewise.
+ (pack_ts_type_common_value_fields): Likewise.
+ (pack_ts_block_value_fields): Likewise.
+ (pack_ts_translation_unit_decl_value_fields): Likewise.
+ (pack_value_fields): Likewise.
+ (lto_output_chain): Likewise.
+ (lto_output_ts_common_tree_pointers): Likewise.
+ (lto_output_ts_vector_tree_pointers): Likewise.
+ (lto_output_ts_complex_tree_pointers): Likewise.
+ (lto_output_ts_decl_minimal_tree_pointers): Likewise.
+ (lto_output_ts_decl_common_tree_pointers): Likewise.
+ (lto_output_ts_decl_non_common_tree_pointers): Likewise.
+ (lto_output_ts_decl_with_vis_tree_pointers): Likewise.
+ (lto_output_ts_field_decl_tree_pointers): Likewise.
+ (lto_output_ts_function_decl_tree_pointers): Likewise.
+ (lto_output_ts_type_common_tree_pointers): Likewise.
+ (lto_output_ts_type_non_common_tree_pointers): Likewise.
+ (lto_output_ts_list_tree_pointers): Likewise.
+ (lto_output_ts_vec_tree_pointers): Likewise.
+ (lto_output_ts_exp_tree_pointers): Likewise.
+ (lto_output_ts_block_tree_pointers): Likewise.
+ (lto_output_ts_binfo_tree_pointers): Likewise.
+ (lto_output_ts_constructor_tree_pointers): Likewise.
+ (lto_output_ts_target_option): Likewise.
+ (lto_output_ts_translation_unit_decl_tree_pointers): Likewise.
+ (lto_output_tree_pointers): Likewise.
+ (lto_output_tree_header): Likewise.
+ (lto_output_builtin_tree): Likewise.
+ (lto_write_tree): Likewise.
+ (lto_output_integer_cst): Likewise.
+ (lto_output_tree): Likewise.
+ (output_phi): Move to gimple-streamer-out.c.
+ (output_gimple_stmt): Likewise.
+ (output_bb): Likewise.
+ * lto-streamer.c: Include tree-streamer.h and streamer-hooks.h.
+ (streamer_hooks): Move to streamer-hooks.c.
+ (check_handled_ts_structures): Move to tree-streamer.c
+ (lto_streamer_cache_add_to_node_array): Likewise.
+ (lto_streamer_cache_insert_1): Likewise.
+ (lto_streamer_cache_insert): Likewise.
+ (lto_streamer_cache_insert_at): Likewise.
+ (lto_streamer_cache_append): Likewise.
+ (lto_streamer_cache_lookup): Likewise.
+ (lto_streamer_cache_get): Likewise.
+ (lto_record_common_node): Likewise.
+ (lto_preload_common_nodes): Likewise.
+ (lto_streamer_cache_create): Likewise.
+ (lto_streamer_cache_delete): Likewise.
+ (streamer_hooks_init): Move to streamer-hooks.c.
+ * lto-streamer.h: Include diagnostic.h
+ (struct output_block, struct lto_input_block,
+ struct data_in, struct bitpack_d): Remove forward
+ declarations.
+ (struct bitpack_d): Move to data-streamer.h.
+ (struct lto_streamer_cache_d): Move to tree-streamer.h.
+ (struct streamer_hooks): Move to streamer-hooks.h.
+ (bp_pack_var_len_unsigned): Move to data-streamer.h.
+ (bp_pack_var_len_int): Likewise.
+ (bp_unpack_var_len_unsigned): Likewise.
+ (bp_unpack_var_len_int): Likewise.
+ (lto_input_location): Declare.
+ (lto_tag_check_set): Declare.
+ (lto_init_eh): Declare.
+ (lto_output_tree_ref): Declare.
+ (lto_output_location): Declare.
+ (bitpack_create): Move to data-streamer.h.
+ (bp_pack_value): Likewise.
+ (lto_output_bitpack): Likewise.
+ (lto_input_bitpack): Likewise.
+ (bp_unpack_value): Likewise.
+ (lto_output_1_stream): Likewise.
+ (lto_input_1_unsigned): Likewise.
+ (lto_output_int_in_range): Likewise.
+ (lto_input_int_in_range): Likewise.
+ (bp_pack_int_in_range): Likewise.
+ (bp_unpack_int_in_range): Likewise.
+ (lto_output_enum): Likewise.
+ (lto_input_enum): Likewise.
+ (bp_pack_enum): Likewise.
+ (bp_unpack_enum): Likewise.
+ * streamer-hooks.c: New.
+ * streamer-hooks.h: New.
+ * tree-streamer-in.c: New.
+ * tree-streamer-out.c: New.
+ * tree-streamer.c: New.
+ * tree-streamer.h: New.
+
2011-08-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* gthr-posix95.h: Remove.
EBITMAP_H = ebitmap.h sbitmap.h
LTO_STREAMER_H = lto-streamer.h $(LINKER_PLUGIN_API_H) $(TARGET_H) \
$(CGRAPH_H) $(VEC_H) vecprim.h $(TREE_H) $(GIMPLE_H) \
- $(GCOV_IO_H)
+ $(GCOV_IO_H) $(DIAGNOSTIC_H)
+DATA_STREAMER_H = data-streamer.h $(VEC_H) $(LTO_STREAMER_H)
+GIMPLE_STREAMER_H = gimple-streamer.h $(LTO_STREAMER_H) $(BASIC_BLOCK_H) \
+ $(FUNCTION_H)
+TREE_STREAMER_H = tree-streamer.h $(TREE_H) $(LTO_STREAMER_H)
+STREAMER_HOOKS_H = streamer-hooks.h $(TREE_H)
TREE_VECTORIZER_H = tree-vectorizer.h $(TREE_DATA_REF_H)
IPA_PROP_H = ipa-prop.h $(TREE_H) $(VEC_H) $(CGRAPH_H) $(GIMPLE_H) alloc-pool.h
GSTAB_H = gstab.h stab.def
cprop.o \
cse.o \
cselib.o \
+ data-streamer.o \
+ data-streamer-in.o \
+ data-streamer-out.o \
dbxout.o \
dbgcnt.o \
dce.o \
gimple-fold.o \
gimple-low.o \
gimple-pretty-print.o \
+ gimple-streamer-in.o \
+ gimple-streamer-out.o \
gimplify.o \
godump.o \
graph.o \
loop-unswitch.o \
lower-subreg.o \
lto-cgraph.o \
+ lto-streamer.o \
lto-streamer-in.o \
lto-streamer-out.o \
lto-section-in.o \
lto-section-out.o \
lto-symtab.o \
lto-opts.o \
- lto-streamer.o \
lto-compress.o \
matrix-reorg.o \
mcf.o \
stmt.o \
stor-layout.o \
store-motion.o \
+ streamer-hooks.o \
stringpool.o \
target-globals.o \
targhooks.o \
tree-ssa.o \
tree-ssanames.o \
tree-stdarg.o \
+ tree-streamer.o \
+ tree-streamer-in.o \
+ tree-streamer-out.o \
tree-tailcall.o \
tree-vect-generic.o \
tree-vect-patterns.o \
$(TREE_H) langhooks.h $(LTO_STREAMER_H) $(LTO_SECTION_H) \
lto-compress.h $(DIAGNOSTIC_CORE_H) $(DIAGNOSTIC_CORE_H)
$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(ZLIBINC) $< $(OUTPUT_OPTION)
-
+data-streamer-in.o: data-streamer-in.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
+ $(DATA_STREAMER_H) $(DIAGNOSTIC_H)
+data-streamer-out.o: data-streamer-out.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
+ $(DATA_STREAMER_H)
+data-streamer.o: data-streamer.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
+ $(DATA_STREAMER_H)
+gimple-streamer-in.o: gimple-streamer-in.c $(CONFIG_H) $(SYSTEM_H) \
+ coretypes.h $(GIMPLE_STREAMER_H) $(TREE_FLOW_H) $(DATA_STREAMER_H) \
+ $(TREE_STREAMER_H) $(DIAGNOSTIC_H)
+gimple-streamer-out.o: gimple-streamer-out.c $(CONFIG_H) $(SYSTEM_H) \
+ coretypes.h $(GIMPLE_STREAMER_H) $(DATA_STREAMER_H) $(TREE_FLOW_H) \
+ $(LTO_STREAMER_H)
+tree-streamer.o: tree-streamer.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
+ $(TREE_STREAMER_H) $(STREAMER_HOOKS_H)
+tree-streamer-in.o: tree-streamer-in.c $(CONFIG_H) $(SYSTEM_H) \
+ coretypes.h $(DIAGNOSTIC_H) $(TREE_H) $(TREE_FLOW_H) $(TREE_STREAMER_H) \
+ $(DATA_STREAMER_H) $(STREAMER_HOOKS_H) $(LTO_STREAMER_H)
+tree-streamer-out.o: tree-streamer-out.c $(CONFIG_H) $(SYSTEM_H) \
+ coretypes.h $(DIAGNOSTIC_H) $(TREE_STREAMER_H) $(DATA_STREAMER_H) \
+ $(STREAMER_HOOKS_H)
+streamer-hooks.o: streamer-hooks.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
+ $(STREAMER_HOOKS_H)
lto-cgraph.o: lto-cgraph.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) $(DIAGNOSTIC_CORE_H) $(EXPR_H) $(FLAGS_H) $(PARAMS_H) input.h \
$(HASHTAB_H) langhooks.h $(BASIC_BLOCK_H) \
$(TREE_FLOW_H) $(CGRAPH_H) $(FUNCTION_H) $(GGC_H) $(DIAGNOSTIC_CORE_H) \
- $(EXCEPT_H) $(TIMEVAR_H) output.h pointer-set.h $(LTO_STREAMER_H) $(GCOV_IO_H)
+ $(EXCEPT_H) $(TIMEVAR_H) output.h pointer-set.h $(LTO_STREAMER_H) \
+ $(GCOV_IO_H) $(DATA_STREAMER_H) $(TREE_STREAMER_H)
lto-streamer-in.o: lto-streamer-in.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) toplev.h $(DIAGNOSTIC_CORE_H) $(EXPR_H) $(FLAGS_H) $(PARAMS_H) input.h \
$(HASHTAB_H) $(BASIC_BLOCK_H) $(TREE_FLOW_H) $(TREE_PASS_H) $(CGRAPH_H) \
$(FUNCTION_H) $(GGC_H) $(DIAGNOSTIC_H) $(LIBFUNCS_H) $(EXCEPT_H) debug.h \
- $(TIMEVAR_H) output.h $(IPA_UTILS_H) $(LTO_STREAMER_H) toplev.h
+ $(TIMEVAR_H) output.h $(IPA_UTILS_H) $(LTO_STREAMER_H) toplev.h \
+ $(DATA_STREAMER_H) $(GIMPLE_STREAMER_H) $(TREE_STREAMER_H)
lto-streamer-out.o : lto-streamer-out.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) $(DIAGNOSTIC_CORE_H) $(TREE_H) $(EXPR_H) $(FLAGS_H) $(PARAMS_H) input.h \
$(HASHTAB_H) $(BASIC_BLOCK_H) tree-iterator.h \
$(TREE_FLOW_H) $(TREE_PASS_H) $(CGRAPH_H) $(FUNCTION_H) $(GGC_H) \
- $(DIAGNOSTIC_CORE_H) $(EXCEPT_H) $(LTO_STREAMER_H) $(DIAGNOSTIC_CORE_H)
+ $(DIAGNOSTIC_CORE_H) $(EXCEPT_H) $(LTO_STREAMER_H) $(DIAGNOSTIC_CORE_H) \
+ $(DATA_STREAMER_H) $(STREAMER_HOOKS_H) $(GIMPLE_STREAMER_H) \
+ $(TREE_STREAMER_H)
lto-section-in.o: lto-section-in.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
$(DIAGNOSTIC_CORE_H) $(EXPR_H) $(FLAGS_H) $(PARAMS_H) input.h \
$(HASHTAB_H) $(BASIC_BLOCK_H) $(TREE_FLOW_H) $(CGRAPH_H) $(FUNCTION_H) \
$(COMMON_TARGET_H) $(DIAGNOSTIC_H) $(LTO_STREAMER_H)
lto-streamer.o: lto-streamer.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) $(TREE_H) $(GIMPLE_H) $(BITMAP_H) $(LTO_STREAMER_H) $(FLAGS_H) \
- $(TREE_FLOW_H) $(DIAGNOSTIC_CORE_H) $(LTO_SYMTAB_H) toplev.h $(DIAGNOSTIC_CORE_H)
+ $(TREE_FLOW_H) $(DIAGNOSTIC_CORE_H) $(LTO_SYMTAB_H) toplev.h \
+ $(DIAGNOSTIC_CORE_H) $(STREAMER_HOOKS_H)
langhooks.o : langhooks.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
$(TREE_H) toplev.h $(DIAGNOSTIC_CORE_H) $(TREE_INLINE_H) $(RTL_H) insn-config.h $(INTEGRATE_H) \
langhooks.h $(TARGET_H) $(LANGHOOKS_DEF_H) $(FLAGS_H) $(GGC_H) $(DIAGNOSTIC_H) \
langhooks.h $(GGC_H) $(TARGET_H) $(CGRAPH_H) $(IPA_PROP_H) $(DIAGNOSTIC_H) \
$(TREE_FLOW_H) $(TM_H) $(TREE_PASS_H) $(FLAGS_H) $(TREE_H) \
$(TREE_INLINE_H) $(GIMPLE_H) $(TIMEVAR_H) \
- tree-pretty-print.h gimple-pretty-print.h $(LTO_STREAMER_H)
+ tree-pretty-print.h gimple-pretty-print.h $(LTO_STREAMER_H) \
+ $(DATA_STREAMER_H) $(TREE_STREAMER_H)
ipa-ref.o : ipa-ref.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
langhooks.h $(GGC_H) $(TARGET_H) $(CGRAPH_H) $(TREE_H) $(TARGET_H) \
$(TREE_FLOW_H) $(TM_H) $(TREE_PASS_H) $(FLAGS_H) $(TREE_H) $(GGC_H)
$(TREE_H) langhooks.h $(TREE_INLINE_H) $(FLAGS_H) $(CGRAPH_H) intl.h \
$(DIAGNOSTIC_H) $(PARAMS_H) $(TIMEVAR_H) $(TREE_PASS_H) \
$(HASHTAB_H) $(COVERAGE_H) $(GGC_H) $(TREE_FLOW_H) $(IPA_PROP_H) \
- gimple-pretty-print.h ipa-inline.h $(LTO_STREAMER_H)
+ gimple-pretty-print.h ipa-inline.h $(LTO_STREAMER_H) $(DATA_STREAMER_H) \
+ $(TREE_STREAMER_H)
ipa-inline-transform.o : ipa-inline-transform.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
$(TREE_H) langhooks.h $(TREE_INLINE_H) $(FLAGS_H) $(CGRAPH_H) intl.h \
$(DIAGNOSTIC_H) $(PARAMS_H) $(TIMEVAR_H) $(TREE_PASS_H) \
pointer-set.h $(GGC_H) $(IPA_UTILS_H) $(TARGET_H) \
$(GIMPLE_H) $(CGRAPH_H) output.h $(FLAGS_H) $(TREE_PASS_H) $(TIMEVAR_H) \
$(DIAGNOSTIC_H) $(CFGLOOP_H) $(SCEV_H) $(LTO_STREAMER_H) \
- gimple-pretty-print.h
+ gimple-pretty-print.h $(DATA_STREAMER_H) $(TREE_STREAMER_H)
coverage.o : coverage.c $(GCOV_IO_H) $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(TM_H) $(RTL_H) $(TREE_H) $(FLAGS_H) output.h $(REGS_H) $(EXPR_H) \
$(FUNCTION_H) $(BASIC_BLOCK_H) toplev.h $(DIAGNOSTIC_CORE_H) $(GGC_H) langhooks.h $(COVERAGE_H) \
--- /dev/null
+/* Routines for restoring various data types from a file stream. This deals
+ with various data types like strings, integers, enums, etc.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic.h"
+#include "data-streamer.h"
+
+/* Read a string from the string table in DATA_IN using input block
+ IB. Write the length to RLEN. */
+
+const char *
+string_for_index (struct data_in *data_in, unsigned int loc, unsigned int *rlen)
+{
+ struct lto_input_block str_tab;
+ unsigned int len;
+ const char *result;
+
+ if (!loc)
+ {
+ *rlen = 0;
+ return NULL;
+ }
+
+ /* Get the string stored at location LOC in DATA_IN->STRINGS. */
+ LTO_INIT_INPUT_BLOCK (str_tab, data_in->strings, loc - 1,
+ data_in->strings_len);
+ len = lto_input_uleb128 (&str_tab);
+ *rlen = len;
+
+ if (str_tab.p + len > data_in->strings_len)
+ internal_error ("bytecode stream: string too long for the string table");
+
+ result = (const char *)(data_in->strings + str_tab.p);
+
+ return result;
+}
+
+
+/* Read a string from the string table in DATA_IN using input block
+ IB. Write the length to RLEN. */
+
+const char *
+input_string_internal (struct data_in *data_in, struct lto_input_block *ib,
+ unsigned int *rlen)
+{
+ return string_for_index (data_in, lto_input_uleb128 (ib), rlen);
+}
+
+
+/* Read a NULL terminated string from the string table in DATA_IN. */
+
+const char *
+lto_input_string (struct data_in *data_in, struct lto_input_block *ib)
+{
+ unsigned int len;
+ const char *ptr;
+
+ ptr = input_string_internal (data_in, ib, &len);
+ if (!ptr)
+ return NULL;
+ if (ptr[len - 1] != '\0')
+ internal_error ("bytecode stream: found non-null terminated string");
+
+ return ptr;
+}
+
+
+/* Read an ULEB128 Number of IB. */
+
+unsigned HOST_WIDE_INT
+lto_input_uleb128 (struct lto_input_block *ib)
+{
+ unsigned HOST_WIDE_INT result = 0;
+ int shift = 0;
+ unsigned HOST_WIDE_INT byte;
+
+ while (true)
+ {
+ byte = lto_input_1_unsigned (ib);
+ result |= (byte & 0x7f) << shift;
+ shift += 7;
+ if ((byte & 0x80) == 0)
+ return result;
+ }
+}
+
+
+/* HOST_WIDEST_INT version of lto_input_uleb128. IB is as in
+ lto_input_uleb128. */
+
+unsigned HOST_WIDEST_INT
+lto_input_widest_uint_uleb128 (struct lto_input_block *ib)
+{
+ unsigned HOST_WIDEST_INT result = 0;
+ int shift = 0;
+ unsigned HOST_WIDEST_INT byte;
+
+ while (true)
+ {
+ byte = lto_input_1_unsigned (ib);
+ result |= (byte & 0x7f) << shift;
+ shift += 7;
+ if ((byte & 0x80) == 0)
+ return result;
+ }
+}
+
+
+/* Read an SLEB128 Number of IB. */
+
+HOST_WIDE_INT
+lto_input_sleb128 (struct lto_input_block *ib)
+{
+ HOST_WIDE_INT result = 0;
+ int shift = 0;
+ unsigned HOST_WIDE_INT byte;
+
+ while (true)
+ {
+ byte = lto_input_1_unsigned (ib);
+ result |= (byte & 0x7f) << shift;
+ shift += 7;
+ if ((byte & 0x80) == 0)
+ {
+ if ((shift < HOST_BITS_PER_WIDE_INT) && (byte & 0x40))
+ result |= - ((HOST_WIDE_INT)1 << shift);
+
+ return result;
+ }
+ }
+}
--- /dev/null
+/* Routines for saving various data types to a file stream. This deals
+ with various data types like strings, integers, enums, etc.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "data-streamer.h"
+
+/* Return index used to reference STRING of LEN characters in the string table
+ in OB. The string might or might not include a trailing '\0'.
+ Then put the index onto the INDEX_STREAM.
+ When PERSISTENT is set, the string S is supposed to not change during
+ duration of the OB and thus OB can keep pointer into it. */
+
+unsigned
+lto_string_index (struct output_block *ob, const char *s, unsigned int len,
+ bool persistent)
+{
+ struct string_slot **slot;
+ struct string_slot s_slot;
+
+ s_slot.s = s;
+ s_slot.len = len;
+ s_slot.slot_num = 0;
+
+ slot = (struct string_slot **) htab_find_slot (ob->string_hash_table,
+ &s_slot, INSERT);
+ if (*slot == NULL)
+ {
+ struct lto_output_stream *string_stream = ob->string_stream;
+ unsigned int start = string_stream->total_size;
+ struct string_slot *new_slot = XOBNEW (&ob->obstack, struct string_slot);
+ const char *string;
+
+ if (!persistent)
+ {
+ char *tmp;
+ string = tmp = XOBNEWVEC (&ob->obstack, char, len);
+ memcpy (tmp, s, len);
+ }
+ else
+ string = s;
+
+ new_slot->s = string;
+ new_slot->len = len;
+ new_slot->slot_num = start;
+ *slot = new_slot;
+ lto_output_uleb128_stream (string_stream, len);
+ lto_output_data_stream (string_stream, string, len);
+ return start + 1;
+ }
+ else
+ {
+ struct string_slot *old_slot = *slot;
+ return old_slot->slot_num + 1;
+ }
+}
+
+
+/* Output STRING of LEN characters to the string table in OB. The
+ string might or might not include a trailing '\0'. Then put the
+ index onto the INDEX_STREAM.
+ When PERSISTENT is set, the string S is supposed to not change during
+ duration of the OB and thus OB can keep pointer into it. */
+
+void
+lto_output_string_with_length (struct output_block *ob,
+ struct lto_output_stream *index_stream,
+ const char *s, unsigned int len, bool persistent)
+{
+ if (s)
+ lto_output_uleb128_stream (index_stream,
+ lto_string_index (ob, s, len, persistent));
+ else
+ lto_output_1_stream (index_stream, 0);
+}
+
+
+/* Output the '\0' terminated STRING to the string
+ table in OB. Then put the index onto the INDEX_STREAM.
+ When PERSISTENT is set, the string S is supposed to not change during
+ duration of the OB and thus OB can keep pointer into it. */
+
+void
+lto_output_string (struct output_block *ob,
+ struct lto_output_stream *index_stream,
+ const char *string, bool persistent)
+{
+ if (string)
+ lto_output_string_with_length (ob, index_stream, string,
+ strlen (string) + 1,
+ persistent);
+ else
+ lto_output_1_stream (index_stream, 0);
+}
+
+
+/* Write a zero to the output stream. */
+
+void
+output_zero (struct output_block *ob)
+{
+ lto_output_1_stream (ob->main_stream, 0);
+}
+
+
+/* Output an unsigned LEB128 quantity to OB->main_stream. */
+
+void
+output_uleb128 (struct output_block *ob, unsigned HOST_WIDE_INT work)
+{
+ lto_output_uleb128_stream (ob->main_stream, work);
+}
+
+
+/* Output a signed LEB128 quantity to OB->main_stream. */
+
+void
+output_sleb128 (struct output_block *ob, HOST_WIDE_INT work)
+{
+ lto_output_sleb128_stream (ob->main_stream, work);
+}
+
+
+/* Output an unsigned LEB128 quantity to OBS. */
+
+void
+lto_output_uleb128_stream (struct lto_output_stream *obs,
+ unsigned HOST_WIDE_INT work)
+{
+ do
+ {
+ unsigned int byte = (work & 0x7f);
+ work >>= 7;
+ if (work != 0)
+ /* More bytes to follow. */
+ byte |= 0x80;
+
+ lto_output_1_stream (obs, byte);
+ }
+ while (work != 0);
+}
+
+
+/* Identical to output_uleb128_stream above except using unsigned
+ HOST_WIDEST_INT type. For efficiency on host where unsigned HOST_WIDEST_INT
+ is not native, we only use this if we know that HOST_WIDE_INT is not wide
+ enough. */
+
+void
+lto_output_widest_uint_uleb128_stream (struct lto_output_stream *obs,
+ unsigned HOST_WIDEST_INT work)
+{
+ do
+ {
+ unsigned int byte = (work & 0x7f);
+ work >>= 7;
+ if (work != 0)
+ /* More bytes to follow. */
+ byte |= 0x80;
+
+ lto_output_1_stream (obs, byte);
+ }
+ while (work != 0);
+}
+
+
+/* Output a signed LEB128 quantity. */
+
+void
+lto_output_sleb128_stream (struct lto_output_stream *obs, HOST_WIDE_INT work)
+{
+ int more, byte;
+
+ do
+ {
+ byte = (work & 0x7f);
+ /* arithmetic shift */
+ work >>= 7;
+ more = !((work == 0 && (byte & 0x40) == 0)
+ || (work == -1 && (byte & 0x40) != 0));
+ if (more)
+ byte |= 0x80;
+
+ lto_output_1_stream (obs, byte);
+ }
+ while (more);
+}
--- /dev/null
+/* Generic streaming support for basic data types.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "data-streamer.h"
+
+/* Pack WORK into BP in a variant of uleb format. */
+
+void
+bp_pack_var_len_unsigned (struct bitpack_d *bp, unsigned HOST_WIDE_INT work)
+{
+ do
+ {
+ unsigned int half_byte = (work & 0x7);
+ work >>= 3;
+ if (work != 0)
+ /* More half_bytes to follow. */
+ half_byte |= 0x8;
+
+ bp_pack_value (bp, half_byte, 4);
+ }
+ while (work != 0);
+}
+
+
+/* Pack WORK into BP in a variant of sleb format. */
+
+void
+bp_pack_var_len_int (struct bitpack_d *bp, HOST_WIDE_INT work)
+{
+ int more, half_byte;
+
+ do
+ {
+ half_byte = (work & 0x7);
+ /* arithmetic shift */
+ work >>= 3;
+ more = !((work == 0 && (half_byte & 0x4) == 0)
+ || (work == -1 && (half_byte & 0x4) != 0));
+ if (more)
+ half_byte |= 0x8;
+
+ bp_pack_value (bp, half_byte, 4);
+ }
+ while (more);
+}
+
+
+/* Unpack VAL from BP in a variant of uleb format. */
+
+unsigned HOST_WIDE_INT
+bp_unpack_var_len_unsigned (struct bitpack_d *bp)
+{
+ unsigned HOST_WIDE_INT result = 0;
+ int shift = 0;
+ unsigned HOST_WIDE_INT half_byte;
+
+ while (true)
+ {
+ half_byte = bp_unpack_value (bp, 4);
+ result |= (half_byte & 0x7) << shift;
+ shift += 3;
+ if ((half_byte & 0x8) == 0)
+ return result;
+ }
+}
+
+
+/* Unpack VAL from BP in a variant of sleb format. */
+
+HOST_WIDE_INT
+bp_unpack_var_len_int (struct bitpack_d *bp)
+{
+ HOST_WIDE_INT result = 0;
+ int shift = 0;
+ unsigned HOST_WIDE_INT half_byte;
+
+ while (true)
+ {
+ half_byte = bp_unpack_value (bp, 4);
+ result |= (half_byte & 0x7) << shift;
+ shift += 3;
+ if ((half_byte & 0x8) == 0)
+ {
+ if ((shift < HOST_BITS_PER_WIDE_INT) && (half_byte & 0x4))
+ result |= - ((HOST_WIDE_INT)1 << shift);
+
+ return result;
+ }
+ }
+}
--- /dev/null
+/* Generic streaming support for various data types.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_DATA_STREAMER_H
+#define GCC_DATA_STREAMER_H
+
+#include "vec.h"
+#include "lto-streamer.h"
+
+/* Data structures used to pack values and bitflags into a vector of
+ words. Used to stream values of a fixed number of bits in a space
+ efficient way. */
+static unsigned const BITS_PER_BITPACK_WORD = HOST_BITS_PER_WIDE_INT;
+
+typedef unsigned HOST_WIDE_INT bitpack_word_t;
+DEF_VEC_I(bitpack_word_t);
+DEF_VEC_ALLOC_I(bitpack_word_t, heap);
+
+struct bitpack_d
+{
+ /* The position of the first unused or unconsumed bit in the word. */
+ unsigned pos;
+
+ /* The current word we are (un)packing. */
+ bitpack_word_t word;
+
+ /* The lto_output_stream or the lto_input_block we are streaming to/from. */
+ void *stream;
+};
+
+
+/* String hashing. */
+struct string_slot
+{
+ const char *s;
+ int len;
+ unsigned int slot_num;
+};
+
+
+/* Returns a hash code for P. Adapted from libiberty's htab_hash_string
+ to support strings that may not end in '\0'. */
+
+static inline hashval_t
+hash_string_slot_node (const void *p)
+{
+ const struct string_slot *ds = (const struct string_slot *) p;
+ hashval_t r = ds->len;
+ int i;
+
+ for (i = 0; i < ds->len; i++)
+ r = r * 67 + (unsigned)ds->s[i] - 113;
+ return r;
+}
+
+/* Returns nonzero if P1 and P2 are equal. */
+
+static inline int
+eq_string_slot_node (const void *p1, const void *p2)
+{
+ const struct string_slot *ds1 = (const struct string_slot *) p1;
+ const struct string_slot *ds2 = (const struct string_slot *) p2;
+
+ if (ds1->len == ds2->len)
+ return memcmp (ds1->s, ds2->s, ds1->len) == 0;
+
+ return 0;
+}
+
+/* Returns a new bit-packing context for bit-packing into S. */
+static inline struct bitpack_d
+bitpack_create (struct lto_output_stream *s)
+{
+ struct bitpack_d bp;
+ bp.pos = 0;
+ bp.word = 0;
+ bp.stream = (void *)s;
+ return bp;
+}
+
+/* Pack the NBITS bit sized value VAL into the bit-packing context BP. */
+static inline void
+bp_pack_value (struct bitpack_d *bp, bitpack_word_t val, unsigned nbits)
+{
+ bitpack_word_t word = bp->word;
+ int pos = bp->pos;
+
+ /* Verify that VAL fits in the NBITS. */
+ gcc_checking_assert (nbits == BITS_PER_BITPACK_WORD
+ || !(val & ~(((bitpack_word_t)1<<nbits)-1)));
+
+ /* If val does not fit into the current bitpack word switch to the
+ next one. */
+ if (pos + nbits > BITS_PER_BITPACK_WORD)
+ {
+ lto_output_uleb128_stream ((struct lto_output_stream *) bp->stream, word);
+ word = val;
+ pos = nbits;
+ }
+ else
+ {
+ word |= val << pos;
+ pos += nbits;
+ }
+ bp->word = word;
+ bp->pos = pos;
+}
+
+/* Finishes bit-packing of BP. */
+static inline void
+lto_output_bitpack (struct bitpack_d *bp)
+{
+ lto_output_uleb128_stream ((struct lto_output_stream *) bp->stream,
+ bp->word);
+ bp->word = 0;
+ bp->pos = 0;
+}
+
+/* Returns a new bit-packing context for bit-unpacking from IB. */
+static inline struct bitpack_d
+lto_input_bitpack (struct lto_input_block *ib)
+{
+ struct bitpack_d bp;
+ bp.word = lto_input_uleb128 (ib);
+ bp.pos = 0;
+ bp.stream = (void *)ib;
+ return bp;
+}
+
+/* Unpacks NBITS bits from the bit-packing context BP and returns them. */
+static inline bitpack_word_t
+bp_unpack_value (struct bitpack_d *bp, unsigned nbits)
+{
+ bitpack_word_t mask, val;
+ int pos = bp->pos;
+
+ mask = (nbits == BITS_PER_BITPACK_WORD
+ ? (bitpack_word_t) -1
+ : ((bitpack_word_t) 1 << nbits) - 1);
+
+ /* If there are not continuous nbits in the current bitpack word
+ switch to the next one. */
+ if (pos + nbits > BITS_PER_BITPACK_WORD)
+ {
+ bp->word = val = lto_input_uleb128 ((struct lto_input_block *)bp->stream);
+ bp->pos = nbits;
+ return val & mask;
+ }
+ val = bp->word;
+ val >>= pos;
+ bp->pos = pos + nbits;
+
+ return val & mask;
+}
+
+
+/* Write a character to the output block. */
+
+static inline void
+lto_output_1_stream (struct lto_output_stream *obs, char c)
+{
+ /* No space left. */
+ if (obs->left_in_block == 0)
+ lto_append_block (obs);
+
+ /* Write the actual character. */
+ *obs->current_pointer = c;
+ obs->current_pointer++;
+ obs->total_size++;
+ obs->left_in_block--;
+}
+
+
+/* Read byte from the input block. */
+
+static inline unsigned char
+lto_input_1_unsigned (struct lto_input_block *ib)
+{
+ if (ib->p >= ib->len)
+ lto_section_overrun (ib);
+ return (ib->data[ib->p++]);
+}
+
+/* Output VAL into OBS and verify it is in range MIN...MAX that is supposed
+ to be compile time constant.
+ Be host independent, limit range to 31bits. */
+
+static inline void
+lto_output_int_in_range (struct lto_output_stream *obs,
+ HOST_WIDE_INT min,
+ HOST_WIDE_INT max,
+ HOST_WIDE_INT val)
+{
+ HOST_WIDE_INT range = max - min;
+
+ gcc_checking_assert (val >= min && val <= max && range > 0
+ && range < 0x7fffffff);
+
+ val -= min;
+ lto_output_1_stream (obs, val & 255);
+ if (range >= 0xff)
+ lto_output_1_stream (obs, (val >> 8) & 255);
+ if (range >= 0xffff)
+ lto_output_1_stream (obs, (val >> 16) & 255);
+ if (range >= 0xffffff)
+ lto_output_1_stream (obs, (val >> 24) & 255);
+}
+
+/* Input VAL into OBS and verify it is in range MIN...MAX that is supposed
+ to be compile time constant. PURPOSE is used for error reporting. */
+
+static inline HOST_WIDE_INT
+lto_input_int_in_range (struct lto_input_block *ib,
+ const char *purpose,
+ HOST_WIDE_INT min,
+ HOST_WIDE_INT max)
+{
+ HOST_WIDE_INT range = max - min;
+ HOST_WIDE_INT val = lto_input_1_unsigned (ib);
+
+ gcc_checking_assert (range > 0 && range < 0x7fffffff);
+
+ if (range >= 0xff)
+ val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 8;
+ if (range >= 0xffff)
+ val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 16;
+ if (range >= 0xffffff)
+ val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 24;
+ val += min;
+ if (val < min || val > max)
+ lto_value_range_error (purpose, val, min, max);
+ return val;
+}
+
+/* Output VAL into BP and verify it is in range MIN...MAX that is supposed
+ to be compile time constant.
+ Be host independent, limit range to 31bits. */
+
+static inline void
+bp_pack_int_in_range (struct bitpack_d *bp,
+ HOST_WIDE_INT min,
+ HOST_WIDE_INT max,
+ HOST_WIDE_INT val)
+{
+ HOST_WIDE_INT range = max - min;
+ int nbits = floor_log2 (range) + 1;
+
+ gcc_checking_assert (val >= min && val <= max && range > 0
+ && range < 0x7fffffff);
+
+ val -= min;
+ bp_pack_value (bp, val, nbits);
+}
+
+/* Input VAL into BP and verify it is in range MIN...MAX that is supposed
+ to be compile time constant. PURPOSE is used for error reporting. */
+
+static inline HOST_WIDE_INT
+bp_unpack_int_in_range (struct bitpack_d *bp,
+ const char *purpose,
+ HOST_WIDE_INT min,
+ HOST_WIDE_INT max)
+{
+ HOST_WIDE_INT range = max - min;
+ int nbits = floor_log2 (range) + 1;
+ HOST_WIDE_INT val = bp_unpack_value (bp, nbits);
+
+ gcc_checking_assert (range > 0 && range < 0x7fffffff);
+
+ if (val < min || val > max)
+ lto_value_range_error (purpose, val, min, max);
+ return val;
+}
+
+/* Output VAL of type "enum enum_name" into OBS.
+ Assume range 0...ENUM_LAST - 1. */
+#define lto_output_enum(obs,enum_name,enum_last,val) \
+ lto_output_int_in_range ((obs), 0, (int)(enum_last) - 1, (int)(val))
+
+/* Input enum of type "enum enum_name" from IB.
+ Assume range 0...ENUM_LAST - 1. */
+#define lto_input_enum(ib,enum_name,enum_last) \
+ (enum enum_name)lto_input_int_in_range ((ib), #enum_name, 0, \
+ (int)(enum_last) - 1)
+
+/* Output VAL of type "enum enum_name" into BP.
+ Assume range 0...ENUM_LAST - 1. */
+#define bp_pack_enum(bp,enum_name,enum_last,val) \
+ bp_pack_int_in_range ((bp), 0, (int)(enum_last) - 1, (int)(val))
+
+/* Input enum of type "enum enum_name" from BP.
+ Assume range 0...ENUM_LAST - 1. */
+#define bp_unpack_enum(bp,enum_name,enum_last) \
+ (enum enum_name)bp_unpack_int_in_range ((bp), #enum_name, 0, \
+ (int)(enum_last) - 1)
+
+/* Output the start of a record with TAG to output block OB. */
+
+static inline void
+output_record_start (struct output_block *ob, enum LTO_tags tag)
+{
+ lto_output_enum (ob->main_stream, LTO_tags, LTO_NUM_TAGS, tag);
+}
+
+/* Return the next tag in the input block IB. */
+
+static inline enum LTO_tags
+input_record_start (struct lto_input_block *ib)
+{
+ return lto_input_enum (ib, LTO_tags, LTO_NUM_TAGS);
+}
+
+/* In data-streamer.c */
+void bp_pack_var_len_unsigned (struct bitpack_d *, unsigned HOST_WIDE_INT);
+void bp_pack_var_len_int (struct bitpack_d *, HOST_WIDE_INT);
+unsigned HOST_WIDE_INT bp_unpack_var_len_unsigned (struct bitpack_d *);
+HOST_WIDE_INT bp_unpack_var_len_int (struct bitpack_d *);
+
+/* In data-streamer-out.c */
+void output_zero (struct output_block *);
+void output_uleb128 (struct output_block *, unsigned HOST_WIDE_INT);
+void output_sleb128 (struct output_block *, HOST_WIDE_INT);
+void lto_output_string (struct output_block *, struct lto_output_stream *,
+ const char *, bool);
+unsigned lto_string_index (struct output_block *, const char *, unsigned int,
+ bool);
+void lto_output_string_with_length (struct output_block *,
+ struct lto_output_stream *,
+ const char *, unsigned int, bool);
+const char *input_string_internal (struct data_in *, struct lto_input_block *,
+ unsigned int *);
+
+/* In data-streamer-in.c */
+const char *string_for_index (struct data_in *, unsigned int, unsigned int *);
+const char *lto_input_string (struct data_in *, struct lto_input_block *);
+
+#endif /* GCC_DATA_STREAMER_H */
--- /dev/null
+/* Routines for reading GIMPLE from a file stream.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic.h"
+#include "tree.h"
+#include "tree-flow.h"
+#include "data-streamer.h"
+#include "tree-streamer.h"
+#include "gimple-streamer.h"
+
+/* Read a PHI function for basic block BB in function FN. DATA_IN is
+ the file being read. IB is the input block to use for reading. */
+
+static gimple
+input_phi (struct lto_input_block *ib, basic_block bb, struct data_in *data_in,
+ struct function *fn)
+{
+ unsigned HOST_WIDE_INT ix;
+ tree phi_result;
+ int i, len;
+ gimple result;
+
+ ix = lto_input_uleb128 (ib);
+ phi_result = VEC_index (tree, SSANAMES (fn), ix);
+ len = EDGE_COUNT (bb->preds);
+ result = create_phi_node (phi_result, bb);
+ SSA_NAME_DEF_STMT (phi_result) = result;
+
+ /* We have to go through a lookup process here because the preds in the
+ reconstructed graph are generally in a different order than they
+ were in the original program. */
+ for (i = 0; i < len; i++)
+ {
+ tree def = lto_input_tree (ib, data_in);
+ int src_index = lto_input_uleb128 (ib);
+ location_t arg_loc = lto_input_location (ib, data_in);
+ basic_block sbb = BASIC_BLOCK_FOR_FUNCTION (fn, src_index);
+
+ edge e = NULL;
+ int j;
+
+ for (j = 0; j < len; j++)
+ if (EDGE_PRED (bb, j)->src == sbb)
+ {
+ e = EDGE_PRED (bb, j);
+ break;
+ }
+
+ add_phi_arg (result, def, e, arg_loc);
+ }
+
+ return result;
+}
+
+
+/* Read a statement with tag TAG in function FN from block IB using
+ descriptors in DATA_IN. */
+
+static gimple
+input_gimple_stmt (struct lto_input_block *ib, struct data_in *data_in,
+ struct function *fn, enum LTO_tags tag)
+{
+ gimple stmt;
+ enum gimple_code code;
+ unsigned HOST_WIDE_INT num_ops;
+ size_t i;
+ struct bitpack_d bp;
+
+ code = lto_tag_to_gimple_code (tag);
+
+ /* Read the tuple header. */
+ bp = lto_input_bitpack (ib);
+ num_ops = bp_unpack_var_len_unsigned (&bp);
+ stmt = gimple_alloc (code, num_ops);
+ stmt->gsbase.no_warning = bp_unpack_value (&bp, 1);
+ if (is_gimple_assign (stmt))
+ stmt->gsbase.nontemporal_move = bp_unpack_value (&bp, 1);
+ stmt->gsbase.has_volatile_ops = bp_unpack_value (&bp, 1);
+ stmt->gsbase.subcode = bp_unpack_var_len_unsigned (&bp);
+
+ /* Read location information. */
+ gimple_set_location (stmt, lto_input_location (ib, data_in));
+
+ /* Read lexical block reference. */
+ gimple_set_block (stmt, lto_input_tree (ib, data_in));
+
+ /* Read in all the operands. */
+ switch (code)
+ {
+ case GIMPLE_RESX:
+ gimple_resx_set_region (stmt, lto_input_sleb128 (ib));
+ break;
+
+ case GIMPLE_EH_MUST_NOT_THROW:
+ gimple_eh_must_not_throw_set_fndecl (stmt, lto_input_tree (ib, data_in));
+ break;
+
+ case GIMPLE_EH_DISPATCH:
+ gimple_eh_dispatch_set_region (stmt, lto_input_sleb128 (ib));
+ break;
+
+ case GIMPLE_ASM:
+ {
+ /* FIXME lto. Move most of this into a new gimple_asm_set_string(). */
+ tree str;
+ stmt->gimple_asm.ni = lto_input_uleb128 (ib);
+ stmt->gimple_asm.no = lto_input_uleb128 (ib);
+ stmt->gimple_asm.nc = lto_input_uleb128 (ib);
+ stmt->gimple_asm.nl = lto_input_uleb128 (ib);
+ str = input_string_cst (data_in, ib);
+ stmt->gimple_asm.string = TREE_STRING_POINTER (str);
+ }
+ /* Fallthru */
+
+ case GIMPLE_ASSIGN:
+ case GIMPLE_CALL:
+ case GIMPLE_RETURN:
+ case GIMPLE_SWITCH:
+ case GIMPLE_LABEL:
+ case GIMPLE_COND:
+ case GIMPLE_GOTO:
+ case GIMPLE_DEBUG:
+ for (i = 0; i < num_ops; i++)
+ {
+ tree op = lto_input_tree (ib, data_in);
+ gimple_set_op (stmt, i, op);
+ if (!op)
+ continue;
+
+ /* Fixup FIELD_DECLs in COMPONENT_REFs, they are not handled
+ by decl merging. */
+ if (TREE_CODE (op) == ADDR_EXPR)
+ op = TREE_OPERAND (op, 0);
+ while (handled_component_p (op))
+ {
+ if (TREE_CODE (op) == COMPONENT_REF)
+ {
+ tree field, type, tem;
+ tree closest_match = NULL_TREE;
+ field = TREE_OPERAND (op, 1);
+ type = DECL_CONTEXT (field);
+ for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
+ {
+ if (tem == field)
+ break;
+ if (DECL_NONADDRESSABLE_P (tem)
+ == DECL_NONADDRESSABLE_P (field)
+ && gimple_compare_field_offset (tem, field))
+ {
+ if (types_compatible_p (TREE_TYPE (tem),
+ TREE_TYPE (field)))
+ break;
+ else
+ closest_match = tem;
+ }
+ }
+ /* In case of type mismatches across units we can fail
+ to unify some types and thus not find a proper
+ field-decl here. */
+ if (tem == NULL_TREE)
+ {
+ /* Thus, emit a ODR violation warning. */
+ if (warning_at (gimple_location (stmt), 0,
+ "use of type %<%E%> with two mismatching "
+ "declarations at field %<%E%>",
+ type, TREE_OPERAND (op, 1)))
+ {
+ if (TYPE_FIELDS (type))
+ inform (DECL_SOURCE_LOCATION (TYPE_FIELDS (type)),
+ "original type declared here");
+ inform (DECL_SOURCE_LOCATION (TREE_OPERAND (op, 1)),
+ "field in mismatching type declared here");
+ if (TYPE_NAME (TREE_TYPE (field))
+ && (TREE_CODE (TYPE_NAME (TREE_TYPE (field)))
+ == TYPE_DECL))
+ inform (DECL_SOURCE_LOCATION
+ (TYPE_NAME (TREE_TYPE (field))),
+ "type of field declared here");
+ if (closest_match
+ && TYPE_NAME (TREE_TYPE (closest_match))
+ && (TREE_CODE (TYPE_NAME
+ (TREE_TYPE (closest_match))) == TYPE_DECL))
+ inform (DECL_SOURCE_LOCATION
+ (TYPE_NAME (TREE_TYPE (closest_match))),
+ "type of mismatching field declared here");
+ }
+ /* And finally fixup the types. */
+ TREE_OPERAND (op, 0)
+ = build1 (VIEW_CONVERT_EXPR, type,
+ TREE_OPERAND (op, 0));
+ }
+ else
+ TREE_OPERAND (op, 1) = tem;
+ }
+
+ op = TREE_OPERAND (op, 0);
+ }
+ }
+ if (is_gimple_call (stmt))
+ {
+ if (gimple_call_internal_p (stmt))
+ gimple_call_set_internal_fn
+ (stmt, lto_input_enum (ib, internal_fn, IFN_LAST));
+ else
+ gimple_call_set_fntype (stmt, lto_input_tree (ib, data_in));
+ }
+ break;
+
+ case GIMPLE_NOP:
+ case GIMPLE_PREDICT:
+ break;
+
+ default:
+ internal_error ("bytecode stream: unknown GIMPLE statement tag %s",
+ lto_tag_name (tag));
+ }
+
+ /* Update the properties of symbols, SSA names and labels associated
+ with STMT. */
+ if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
+ {
+ tree lhs = gimple_get_lhs (stmt);
+ if (lhs && TREE_CODE (lhs) == SSA_NAME)
+ SSA_NAME_DEF_STMT (lhs) = stmt;
+ }
+ else if (code == GIMPLE_LABEL)
+ gcc_assert (emit_label_in_global_context_p (gimple_label_label (stmt))
+ || DECL_CONTEXT (gimple_label_label (stmt)) == fn->decl);
+ else if (code == GIMPLE_ASM)
+ {
+ unsigned i;
+
+ for (i = 0; i < gimple_asm_noutputs (stmt); i++)
+ {
+ tree op = TREE_VALUE (gimple_asm_output_op (stmt, i));
+ if (TREE_CODE (op) == SSA_NAME)
+ SSA_NAME_DEF_STMT (op) = stmt;
+ }
+ }
+
+ /* Reset alias information. */
+ if (code == GIMPLE_CALL)
+ gimple_call_reset_alias_info (stmt);
+
+ /* Mark the statement modified so its operand vectors can be filled in. */
+ gimple_set_modified (stmt, true);
+
+ return stmt;
+}
+
+
+/* Read a basic block with tag TAG from DATA_IN using input block IB.
+ FN is the function being processed. */
+
+void
+input_bb (struct lto_input_block *ib, enum LTO_tags tag,
+ struct data_in *data_in, struct function *fn,
+ int count_materialization_scale)
+{
+ unsigned int index;
+ basic_block bb;
+ gimple_stmt_iterator bsi;
+
+ /* This routine assumes that CFUN is set to FN, as it needs to call
+ basic GIMPLE routines that use CFUN. */
+ gcc_assert (cfun == fn);
+
+ index = lto_input_uleb128 (ib);
+ bb = BASIC_BLOCK_FOR_FUNCTION (fn, index);
+
+ bb->count = (lto_input_sleb128 (ib) * count_materialization_scale
+ + REG_BR_PROB_BASE / 2) / REG_BR_PROB_BASE;
+ bb->loop_depth = lto_input_sleb128 (ib);
+ bb->frequency = lto_input_sleb128 (ib);
+ bb->flags = lto_input_sleb128 (ib);
+
+ /* LTO_bb1 has statements. LTO_bb0 does not. */
+ if (tag == LTO_bb0)
+ return;
+
+ bsi = gsi_start_bb (bb);
+ tag = input_record_start (ib);
+ while (tag)
+ {
+ gimple stmt = input_gimple_stmt (ib, data_in, fn, tag);
+ if (!is_gimple_debug (stmt))
+ find_referenced_vars_in (stmt);
+ gsi_insert_after (&bsi, stmt, GSI_NEW_STMT);
+
+ /* After the statement, expect a 0 delimiter or the EH region
+ that the previous statement belongs to. */
+ tag = input_record_start (ib);
+ lto_tag_check_set (tag, 2, LTO_eh_region, LTO_null);
+
+ if (tag == LTO_eh_region)
+ {
+ HOST_WIDE_INT region = lto_input_sleb128 (ib);
+ gcc_assert (region == (int) region);
+ add_stmt_to_eh_lp (stmt, region);
+ }
+
+ tag = input_record_start (ib);
+ }
+
+ tag = input_record_start (ib);
+ while (tag)
+ {
+ gimple phi = input_phi (ib, bb, data_in, fn);
+ find_referenced_vars_in (phi);
+ tag = input_record_start (ib);
+ }
+}
--- /dev/null
+/* Routines for emitting GIMPLE to a file stream.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "tree-flow.h"
+#include "data-streamer.h"
+#include "gimple-streamer.h"
+#include "lto-streamer.h"
+
+/* Output PHI function PHI to the main stream in OB. */
+
+static void
+output_phi (struct output_block *ob, gimple phi)
+{
+ unsigned i, len = gimple_phi_num_args (phi);
+
+ output_record_start (ob, lto_gimple_code_to_tag (GIMPLE_PHI));
+ output_uleb128 (ob, SSA_NAME_VERSION (PHI_RESULT (phi)));
+
+ for (i = 0; i < len; i++)
+ {
+ lto_output_tree_ref (ob, gimple_phi_arg_def (phi, i));
+ output_uleb128 (ob, gimple_phi_arg_edge (phi, i)->src->index);
+ lto_output_location (ob, gimple_phi_arg_location (phi, i));
+ }
+}
+
+
+/* Emit statement STMT on the main stream of output block OB. */
+
+static void
+output_gimple_stmt (struct output_block *ob, gimple stmt)
+{
+ unsigned i;
+ enum gimple_code code;
+ enum LTO_tags tag;
+ struct bitpack_d bp;
+
+ /* Emit identifying tag. */
+ code = gimple_code (stmt);
+ tag = lto_gimple_code_to_tag (code);
+ output_record_start (ob, tag);
+
+ /* Emit the tuple header. */
+ bp = bitpack_create (ob->main_stream);
+ bp_pack_var_len_unsigned (&bp, gimple_num_ops (stmt));
+ bp_pack_value (&bp, gimple_no_warning_p (stmt), 1);
+ if (is_gimple_assign (stmt))
+ bp_pack_value (&bp, gimple_assign_nontemporal_move_p (stmt), 1);
+ bp_pack_value (&bp, gimple_has_volatile_ops (stmt), 1);
+ bp_pack_var_len_unsigned (&bp, stmt->gsbase.subcode);
+ lto_output_bitpack (&bp);
+
+ /* Emit location information for the statement. */
+ lto_output_location (ob, gimple_location (stmt));
+
+ /* Emit the lexical block holding STMT. */
+ lto_output_tree (ob, gimple_block (stmt), true);
+
+ /* Emit the operands. */
+ switch (gimple_code (stmt))
+ {
+ case GIMPLE_RESX:
+ output_sleb128 (ob, gimple_resx_region (stmt));
+ break;
+
+ case GIMPLE_EH_MUST_NOT_THROW:
+ lto_output_tree_ref (ob, gimple_eh_must_not_throw_fndecl (stmt));
+ break;
+
+ case GIMPLE_EH_DISPATCH:
+ output_sleb128 (ob, gimple_eh_dispatch_region (stmt));
+ break;
+
+ case GIMPLE_ASM:
+ lto_output_uleb128_stream (ob->main_stream, gimple_asm_ninputs (stmt));
+ lto_output_uleb128_stream (ob->main_stream, gimple_asm_noutputs (stmt));
+ lto_output_uleb128_stream (ob->main_stream, gimple_asm_nclobbers (stmt));
+ lto_output_uleb128_stream (ob->main_stream, gimple_asm_nlabels (stmt));
+ lto_output_string (ob, ob->main_stream, gimple_asm_string (stmt), true);
+ /* Fallthru */
+
+ case GIMPLE_ASSIGN:
+ case GIMPLE_CALL:
+ case GIMPLE_RETURN:
+ case GIMPLE_SWITCH:
+ case GIMPLE_LABEL:
+ case GIMPLE_COND:
+ case GIMPLE_GOTO:
+ case GIMPLE_DEBUG:
+ for (i = 0; i < gimple_num_ops (stmt); i++)
+ {
+ tree op = gimple_op (stmt, i);
+ /* Wrap all uses of non-automatic variables inside MEM_REFs
+ so that we do not have to deal with type mismatches on
+ merged symbols during IL read in. The first operand
+ of GIMPLE_DEBUG must be a decl, not MEM_REF, though. */
+ if (op && (i || !is_gimple_debug (stmt)))
+ {
+ tree *basep = &op;
+ while (handled_component_p (*basep))
+ basep = &TREE_OPERAND (*basep, 0);
+ if (TREE_CODE (*basep) == VAR_DECL
+ && !auto_var_in_fn_p (*basep, current_function_decl)
+ && !DECL_REGISTER (*basep))
+ {
+ bool volatilep = TREE_THIS_VOLATILE (*basep);
+ *basep = build2 (MEM_REF, TREE_TYPE (*basep),
+ build_fold_addr_expr (*basep),
+ build_int_cst (build_pointer_type
+ (TREE_TYPE (*basep)), 0));
+ TREE_THIS_VOLATILE (*basep) = volatilep;
+ }
+ }
+ lto_output_tree_ref (ob, op);
+ }
+ if (is_gimple_call (stmt))
+ {
+ if (gimple_call_internal_p (stmt))
+ lto_output_enum (ob->main_stream, internal_fn,
+ IFN_LAST, gimple_call_internal_fn (stmt));
+ else
+ lto_output_tree_ref (ob, gimple_call_fntype (stmt));
+ }
+ break;
+
+ case GIMPLE_NOP:
+ case GIMPLE_PREDICT:
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+}
+
+
+/* Output a basic block BB to the main stream in OB for this FN. */
+
+void
+output_bb (struct output_block *ob, basic_block bb, struct function *fn)
+{
+ gimple_stmt_iterator bsi = gsi_start_bb (bb);
+
+ output_record_start (ob,
+ (!gsi_end_p (bsi)) || phi_nodes (bb)
+ ? LTO_bb1
+ : LTO_bb0);
+
+ output_uleb128 (ob, bb->index);
+ output_sleb128 (ob, bb->count);
+ output_sleb128 (ob, bb->loop_depth);
+ output_sleb128 (ob, bb->frequency);
+ output_sleb128 (ob, bb->flags);
+
+ if (!gsi_end_p (bsi) || phi_nodes (bb))
+ {
+ /* Output the statements. The list of statements is terminated
+ with a zero. */
+ for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi))
+ {
+ int region;
+ gimple stmt = gsi_stmt (bsi);
+
+ output_gimple_stmt (ob, stmt);
+
+ /* Emit the EH region holding STMT. */
+ region = lookup_stmt_eh_lp_fn (fn, stmt);
+ if (region != 0)
+ {
+ output_record_start (ob, LTO_eh_region);
+ output_sleb128 (ob, region);
+ }
+ else
+ output_record_start (ob, LTO_null);
+ }
+
+ output_record_start (ob, LTO_null);
+
+ for (bsi = gsi_start_phis (bb); !gsi_end_p (bsi); gsi_next (&bsi))
+ {
+ gimple phi = gsi_stmt (bsi);
+
+ /* Only emit PHIs for gimple registers. PHI nodes for .MEM
+ will be filled in on reading when the SSA form is
+ updated. */
+ if (is_gimple_reg (gimple_phi_result (phi)))
+ output_phi (ob, phi);
+ }
+
+ output_record_start (ob, LTO_null);
+ }
+}
--- /dev/null
+/* Data structures and functions for streaming GIMPLE.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_GIMPLE_STREAMER_H
+#define GCC_GIMPLE_STREAMER_H
+
+#include "basic-block.h"
+#include "function.h"
+#include "lto-streamer.h"
+
+/* In gimple-streamer-in.c */
+void input_bb (struct lto_input_block *, enum LTO_tags, struct data_in *,
+ struct function *, int);
+
+/* In gimple-streamer-out.c */
+void output_bb (struct output_block *, basic_block, struct function *);
+
+#endif /* GCC_GIMPLE_STREAMER_H */
#include "tree-flow.h"
#include "ipa-prop.h"
#include "lto-streamer.h"
+#include "data-streamer.h"
+#include "tree-streamer.h"
#include "ipa-inline.h"
#include "alloc-pool.h"
#include "tree-pretty-print.h"
#include "gimple-pretty-print.h"
#include "lto-streamer.h"
+#include "data-streamer.h"
+#include "tree-streamer.h"
/* Intermediate information about a parameter that is only useful during the
#include "langhooks.h"
#include "target.h"
#include "lto-streamer.h"
+#include "data-streamer.h"
+#include "tree-streamer.h"
#include "cfgloop.h"
#include "tree-scalar-evolution.h"
#include "intl.h"
#include "output.h"
#include "pointer-set.h"
#include "lto-streamer.h"
+#include "data-streamer.h"
+#include "tree-streamer.h"
#include "gcov-io.h"
static void output_varpool (cgraph_node_set, varpool_node_set);
};
-/* Read an ULEB128 Number of IB. */
-
-unsigned HOST_WIDE_INT
-lto_input_uleb128 (struct lto_input_block *ib)
-{
- unsigned HOST_WIDE_INT result = 0;
- int shift = 0;
- unsigned HOST_WIDE_INT byte;
-
- while (true)
- {
- byte = lto_input_1_unsigned (ib);
- result |= (byte & 0x7f) << shift;
- shift += 7;
- if ((byte & 0x80) == 0)
- return result;
- }
-}
-
-/* HOST_WIDEST_INT version of lto_input_uleb128. IB is as in
- lto_input_uleb128. */
-
-unsigned HOST_WIDEST_INT
-lto_input_widest_uint_uleb128 (struct lto_input_block *ib)
-{
- unsigned HOST_WIDEST_INT result = 0;
- int shift = 0;
- unsigned HOST_WIDEST_INT byte;
-
- while (true)
- {
- byte = lto_input_1_unsigned (ib);
- result |= (byte & 0x7f) << shift;
- shift += 7;
- if ((byte & 0x80) == 0)
- return result;
- }
-}
-
-/* Read an SLEB128 Number of IB. */
-
-HOST_WIDE_INT
-lto_input_sleb128 (struct lto_input_block *ib)
-{
- HOST_WIDE_INT result = 0;
- int shift = 0;
- unsigned HOST_WIDE_INT byte;
-
- while (true)
- {
- byte = lto_input_1_unsigned (ib);
- result |= (byte & 0x7f) << shift;
- shift += 7;
- if ((byte & 0x80) == 0)
- {
- if ((shift < HOST_BITS_PER_WIDE_INT) && (byte & 0x40))
- result |= - ((HOST_WIDE_INT)1 << shift);
-
- return result;
- }
- }
-}
-
-
-/* Unpack VAL from BP in a variant of uleb format. */
-
-unsigned HOST_WIDE_INT
-bp_unpack_var_len_unsigned (struct bitpack_d *bp)
-{
- unsigned HOST_WIDE_INT result = 0;
- int shift = 0;
- unsigned HOST_WIDE_INT half_byte;
-
- while (true)
- {
- half_byte = bp_unpack_value (bp, 4);
- result |= (half_byte & 0x7) << shift;
- shift += 3;
- if ((half_byte & 0x8) == 0)
- return result;
- }
-}
-
-
-/* Unpack VAL from BP in a variant of sleb format. */
-
-HOST_WIDE_INT
-bp_unpack_var_len_int (struct bitpack_d *bp)
-{
- HOST_WIDE_INT result = 0;
- int shift = 0;
- unsigned HOST_WIDE_INT half_byte;
-
- while (true)
- {
- half_byte = bp_unpack_value (bp, 4);
- result |= (half_byte & 0x7) << shift;
- shift += 3;
- if ((half_byte & 0x8) == 0)
- {
- if ((shift < HOST_BITS_PER_WIDE_INT) && (half_byte & 0x4))
- result |= - ((HOST_WIDE_INT)1 << shift);
-
- return result;
- }
- }
-}
-
-
/* Hooks so that the ipa passes can call into the lto front end to get
sections. */
}
-/* Output an unsigned LEB128 quantity to OBS. */
-
-void
-lto_output_uleb128_stream (struct lto_output_stream *obs,
- unsigned HOST_WIDE_INT work)
-{
- do
- {
- unsigned int byte = (work & 0x7f);
- work >>= 7;
- if (work != 0)
- /* More bytes to follow. */
- byte |= 0x80;
-
- lto_output_1_stream (obs, byte);
- }
- while (work != 0);
-}
-
-/* Identical to output_uleb128_stream above except using unsigned
- HOST_WIDEST_INT type. For efficiency on host where unsigned HOST_WIDEST_INT
- is not native, we only use this if we know that HOST_WIDE_INT is not wide
- enough. */
-
-void
-lto_output_widest_uint_uleb128_stream (struct lto_output_stream *obs,
- unsigned HOST_WIDEST_INT work)
-{
- do
- {
- unsigned int byte = (work & 0x7f);
- work >>= 7;
- if (work != 0)
- /* More bytes to follow. */
- byte |= 0x80;
-
- lto_output_1_stream (obs, byte);
- }
- while (work != 0);
-}
-
-
-/* Output a signed LEB128 quantity. */
-
-void
-lto_output_sleb128_stream (struct lto_output_stream *obs, HOST_WIDE_INT work)
-{
- int more, byte;
-
- do
- {
- byte = (work & 0x7f);
- /* arithmetic shift */
- work >>= 7;
- more = !((work == 0 && (byte & 0x40) == 0)
- || (work == -1 && (byte & 0x40) != 0));
- if (more)
- byte |= 0x80;
-
- lto_output_1_stream (obs, byte);
- }
- while (more);
-}
-
-
-/* Pack WORK into BP in a variant of uleb format. */
-
-void
-bp_pack_var_len_unsigned (struct bitpack_d *bp, unsigned HOST_WIDE_INT work)
-{
- do
- {
- unsigned int half_byte = (work & 0x7);
- work >>= 3;
- if (work != 0)
- /* More half_bytes to follow. */
- half_byte |= 0x8;
-
- bp_pack_value (bp, half_byte, 4);
- }
- while (work != 0);
-}
-
-
-/* Pack WORK into BP in a variant of sleb format. */
-
-void
-bp_pack_var_len_int (struct bitpack_d *bp, HOST_WIDE_INT work)
-{
- int more, half_byte;
-
- do
- {
- half_byte = (work & 0x7);
- /* arithmetic shift */
- work >>= 3;
- more = !((work == 0 && (half_byte & 0x4) == 0)
- || (work == -1 && (half_byte & 0x4) != 0));
- if (more)
- half_byte |= 0x8;
-
- bp_pack_value (bp, half_byte, 4);
- }
- while (more);
-}
-
-
/* Lookup NAME in ENCODER. If NAME is not found, create a new entry in
ENCODER for NAME with the next available index of ENCODER, then
print the index to OBS. True is returned if NAME was added to
#include "timevar.h"
#include "output.h"
#include "ipa-utils.h"
+#include "data-streamer.h"
+#include "gimple-streamer.h"
#include "lto-streamer.h"
+#include "tree-streamer.h"
#include "tree-pass.h"
-/* Data structure used to hash file names in the source_location field. */
-struct string_slot
-{
- const char *s;
- unsigned int slot_num;
-};
-
/* The table to hold the file names. */
static htab_t file_name_hash_table;
/* Check that tag ACTUAL has one of the given values. NUM_TAGS is the
number of valid tag values to check. */
-static void
+void
lto_tag_check_set (enum LTO_tags actual, int ntags, ...)
{
va_list ap;
}
-/* Check that tag ACTUAL is in the range [TAG1, TAG2]. */
-
-static void
-lto_tag_check_range (enum LTO_tags actual, enum LTO_tags tag1,
- enum LTO_tags tag2)
-{
- if (actual < tag1 || actual > tag2)
- internal_error ("bytecode stream: tag %s is not in the expected range "
- "[%s, %s]",
- lto_tag_name (actual),
- lto_tag_name (tag1),
- lto_tag_name (tag2));
-}
-
-
-/* Check that tag ACTUAL == EXPECTED. */
-
-static void
-lto_tag_check (enum LTO_tags actual, enum LTO_tags expected)
-{
- if (actual != expected)
- internal_error ("bytecode stream: expected tag %s instead of %s",
- lto_tag_name (expected), lto_tag_name (actual));
-}
-
-
-/* Return a hash code for P. */
-
-static hashval_t
-hash_string_slot_node (const void *p)
-{
- const struct string_slot *ds = (const struct string_slot *) p;
- return (hashval_t) htab_hash_string (ds->s);
-}
-
-
-/* Returns nonzero if P1 and P2 are equal. */
-
-static int
-eq_string_slot_node (const void *p1, const void *p2)
-{
- const struct string_slot *ds1 = (const struct string_slot *) p1;
- const struct string_slot *ds2 = (const struct string_slot *) p2;
- return strcmp (ds1->s, ds2->s) == 0;
-}
-
-
-/* Read a string from the string table in DATA_IN using input block
- IB. Write the length to RLEN. */
-
-static const char *
-string_for_index (struct data_in *data_in,
- unsigned int loc,
- unsigned int *rlen)
-{
- struct lto_input_block str_tab;
- unsigned int len;
- const char *result;
-
- if (!loc)
- {
- *rlen = 0;
- return NULL;
- }
-
- /* Get the string stored at location LOC in DATA_IN->STRINGS. */
- LTO_INIT_INPUT_BLOCK (str_tab, data_in->strings, loc - 1, data_in->strings_len);
- len = lto_input_uleb128 (&str_tab);
- *rlen = len;
-
- if (str_tab.p + len > data_in->strings_len)
- internal_error ("bytecode stream: string too long for the string table");
-
- result = (const char *)(data_in->strings + str_tab.p);
-
- return result;
-}
-
-
-/* Read a string from the string table in DATA_IN using input block
- IB. Write the length to RLEN. */
-
-static const char *
-input_string_internal (struct data_in *data_in, struct lto_input_block *ib,
- unsigned int *rlen)
-{
- return string_for_index (data_in, lto_input_uleb128 (ib), rlen);
-}
-
-
-/* Read a STRING_CST from the string table in DATA_IN using input
- block IB. */
-
-static tree
-input_string_cst (struct data_in *data_in, struct lto_input_block *ib)
-{
- unsigned int len;
- const char * ptr;
-
- ptr = input_string_internal (data_in, ib, &len);
- if (!ptr)
- return NULL;
- return build_string (len, ptr);
-}
-
-
-/* Read an IDENTIFIER from the string table in DATA_IN using input
- block IB. */
-
-static tree
-input_identifier (struct data_in *data_in, struct lto_input_block *ib)
-{
- unsigned int len;
- const char *ptr;
-
- ptr = input_string_internal (data_in, ib, &len);
- if (!ptr)
- return NULL;
- return get_identifier_with_length (ptr, len);
-}
-
-
/* Read LENGTH bytes from STREAM to ADDR. */
void
}
-/* Read a NULL terminated string from the string table in DATA_IN. */
-
-const char *
-lto_input_string (struct data_in *data_in, struct lto_input_block *ib)
-{
- unsigned int len;
- const char *ptr;
-
- ptr = input_string_internal (data_in, ib, &len);
- if (!ptr)
- return NULL;
- if (ptr[len - 1] != '\0')
- internal_error ("bytecode stream: found non-null terminated string");
-
- return ptr;
-}
-
-
-/* Return the next tag in the input block IB. */
-
-static inline enum LTO_tags
-input_record_start (struct lto_input_block *ib)
-{
- return lto_input_enum (ib, LTO_tags, LTO_NUM_TAGS);
-}
-
-
/* Lookup STRING in file_name_hash_table. If found, return the existing
string, otherwise insert STRING as the canonical version. */
void **slot;
struct string_slot s_slot;
s_slot.s = string;
+ s_slot.len = strlen (string);
slot = htab_find_slot (file_name_hash_table, &s_slot, INSERT);
if (*slot == NULL)
/* Read a location from input block IB. */
-static location_t
+location_t
lto_input_location (struct lto_input_block *ib, struct data_in *data_in)
{
struct bitpack_d bp;
representation of the tree using lto_input_tree. FN is the
function scope for the read tree. */
-static tree
+tree
lto_input_tree_ref (struct lto_input_block *ib, struct data_in *data_in,
struct function *fn, enum LTO_tags tag)
{
}
-/* Read a chain of tree nodes from input block IB. DATA_IN contains
- tables and descriptors for the file being read. */
-
-static tree
-lto_input_chain (struct lto_input_block *ib, struct data_in *data_in)
-{
- int i, count;
- tree first, prev, curr;
-
- first = prev = NULL_TREE;
- count = lto_input_sleb128 (ib);
- for (i = 0; i < count; i++)
- {
- curr = lto_input_tree (ib, data_in);
- if (prev)
- TREE_CHAIN (prev) = curr;
- else
- first = curr;
-
- TREE_CHAIN (curr) = NULL_TREE;
- prev = curr;
- }
-
- return first;
-}
-
-
/* Read and return a double-linked list of catch handlers from input
block IB, using descriptors in DATA_IN. */
/* Initialize EH support. */
-static void
+void
lto_init_eh (void)
{
static bool eh_initialized_p = false;
}
-/* Read a PHI function for basic block BB in function FN. DATA_IN is
- the file being read. IB is the input block to use for reading. */
-
-static gimple
-input_phi (struct lto_input_block *ib, basic_block bb, struct data_in *data_in,
- struct function *fn)
-{
- unsigned HOST_WIDE_INT ix;
- tree phi_result;
- int i, len;
- gimple result;
-
- ix = lto_input_uleb128 (ib);
- phi_result = VEC_index (tree, SSANAMES (fn), ix);
- len = EDGE_COUNT (bb->preds);
- result = create_phi_node (phi_result, bb);
- SSA_NAME_DEF_STMT (phi_result) = result;
-
- /* We have to go through a lookup process here because the preds in the
- reconstructed graph are generally in a different order than they
- were in the original program. */
- for (i = 0; i < len; i++)
- {
- tree def = lto_input_tree (ib, data_in);
- int src_index = lto_input_uleb128 (ib);
- location_t arg_loc = lto_input_location (ib, data_in);
- basic_block sbb = BASIC_BLOCK_FOR_FUNCTION (fn, src_index);
-
- edge e = NULL;
- int j;
-
- for (j = 0; j < len; j++)
- if (EDGE_PRED (bb, j)->src == sbb)
- {
- e = EDGE_PRED (bb, j);
- break;
- }
-
- add_phi_arg (result, def, e, arg_loc);
- }
-
- return result;
-}
-
-
/* Read the SSA names array for function FN from DATA_IN using input
block IB. */
}
}
-/* Read a statement with tag TAG in function FN from block IB using
- descriptors in DATA_IN. */
-
-static gimple
-input_gimple_stmt (struct lto_input_block *ib, struct data_in *data_in,
- struct function *fn, enum LTO_tags tag)
-{
- gimple stmt;
- enum gimple_code code;
- unsigned HOST_WIDE_INT num_ops;
- size_t i;
- struct bitpack_d bp;
-
- code = lto_tag_to_gimple_code (tag);
-
- /* Read the tuple header. */
- bp = lto_input_bitpack (ib);
- num_ops = bp_unpack_var_len_unsigned (&bp);
- stmt = gimple_alloc (code, num_ops);
- stmt->gsbase.no_warning = bp_unpack_value (&bp, 1);
- if (is_gimple_assign (stmt))
- stmt->gsbase.nontemporal_move = bp_unpack_value (&bp, 1);
- stmt->gsbase.has_volatile_ops = bp_unpack_value (&bp, 1);
- stmt->gsbase.subcode = bp_unpack_var_len_unsigned (&bp);
-
- /* Read location information. */
- gimple_set_location (stmt, lto_input_location (ib, data_in));
-
- /* Read lexical block reference. */
- gimple_set_block (stmt, lto_input_tree (ib, data_in));
-
- /* Read in all the operands. */
- switch (code)
- {
- case GIMPLE_RESX:
- gimple_resx_set_region (stmt, lto_input_sleb128 (ib));
- break;
-
- case GIMPLE_EH_MUST_NOT_THROW:
- gimple_eh_must_not_throw_set_fndecl (stmt, lto_input_tree (ib, data_in));
- break;
-
- case GIMPLE_EH_DISPATCH:
- gimple_eh_dispatch_set_region (stmt, lto_input_sleb128 (ib));
- break;
-
- case GIMPLE_ASM:
- {
- /* FIXME lto. Move most of this into a new gimple_asm_set_string(). */
- tree str;
- stmt->gimple_asm.ni = lto_input_uleb128 (ib);
- stmt->gimple_asm.no = lto_input_uleb128 (ib);
- stmt->gimple_asm.nc = lto_input_uleb128 (ib);
- stmt->gimple_asm.nl = lto_input_uleb128 (ib);
- str = input_string_cst (data_in, ib);
- stmt->gimple_asm.string = TREE_STRING_POINTER (str);
- }
- /* Fallthru */
-
- case GIMPLE_ASSIGN:
- case GIMPLE_CALL:
- case GIMPLE_RETURN:
- case GIMPLE_SWITCH:
- case GIMPLE_LABEL:
- case GIMPLE_COND:
- case GIMPLE_GOTO:
- case GIMPLE_DEBUG:
- for (i = 0; i < num_ops; i++)
- {
- tree op = lto_input_tree (ib, data_in);
- gimple_set_op (stmt, i, op);
- if (!op)
- continue;
-
- /* Fixup FIELD_DECLs in COMPONENT_REFs, they are not handled
- by decl merging. */
- if (TREE_CODE (op) == ADDR_EXPR)
- op = TREE_OPERAND (op, 0);
- while (handled_component_p (op))
- {
- if (TREE_CODE (op) == COMPONENT_REF)
- {
- tree field, type, tem;
- tree closest_match = NULL_TREE;
- field = TREE_OPERAND (op, 1);
- type = DECL_CONTEXT (field);
- for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
- {
- if (tem == field)
- break;
- if (DECL_NONADDRESSABLE_P (tem)
- == DECL_NONADDRESSABLE_P (field)
- && gimple_compare_field_offset (tem, field))
- {
- if (types_compatible_p (TREE_TYPE (tem),
- TREE_TYPE (field)))
- break;
- else
- closest_match = tem;
- }
- }
- /* In case of type mismatches across units we can fail
- to unify some types and thus not find a proper
- field-decl here. */
- if (tem == NULL_TREE)
- {
- /* Thus, emit a ODR violation warning. */
- if (warning_at (gimple_location (stmt), 0,
- "use of type %<%E%> with two mismatching "
- "declarations at field %<%E%>",
- type, TREE_OPERAND (op, 1)))
- {
- if (TYPE_FIELDS (type))
- inform (DECL_SOURCE_LOCATION (TYPE_FIELDS (type)),
- "original type declared here");
- inform (DECL_SOURCE_LOCATION (TREE_OPERAND (op, 1)),
- "field in mismatching type declared here");
- if (TYPE_NAME (TREE_TYPE (field))
- && (TREE_CODE (TYPE_NAME (TREE_TYPE (field)))
- == TYPE_DECL))
- inform (DECL_SOURCE_LOCATION
- (TYPE_NAME (TREE_TYPE (field))),
- "type of field declared here");
- if (closest_match
- && TYPE_NAME (TREE_TYPE (closest_match))
- && (TREE_CODE (TYPE_NAME
- (TREE_TYPE (closest_match))) == TYPE_DECL))
- inform (DECL_SOURCE_LOCATION
- (TYPE_NAME (TREE_TYPE (closest_match))),
- "type of mismatching field declared here");
- }
- /* And finally fixup the types. */
- TREE_OPERAND (op, 0)
- = build1 (VIEW_CONVERT_EXPR, type,
- TREE_OPERAND (op, 0));
- }
- else
- TREE_OPERAND (op, 1) = tem;
- }
-
- op = TREE_OPERAND (op, 0);
- }
- }
- if (is_gimple_call (stmt))
- {
- if (gimple_call_internal_p (stmt))
- gimple_call_set_internal_fn
- (stmt, lto_input_enum (ib, internal_fn, IFN_LAST));
- else
- gimple_call_set_fntype (stmt, lto_input_tree (ib, data_in));
- }
- break;
-
- case GIMPLE_NOP:
- case GIMPLE_PREDICT:
- break;
-
- default:
- internal_error ("bytecode stream: unknown GIMPLE statement tag %s",
- lto_tag_name (tag));
- }
-
- /* Update the properties of symbols, SSA names and labels associated
- with STMT. */
- if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
- {
- tree lhs = gimple_get_lhs (stmt);
- if (lhs && TREE_CODE (lhs) == SSA_NAME)
- SSA_NAME_DEF_STMT (lhs) = stmt;
- }
- else if (code == GIMPLE_LABEL)
- gcc_assert (emit_label_in_global_context_p (gimple_label_label (stmt))
- || DECL_CONTEXT (gimple_label_label (stmt)) == fn->decl);
- else if (code == GIMPLE_ASM)
- {
- unsigned i;
-
- for (i = 0; i < gimple_asm_noutputs (stmt); i++)
- {
- tree op = TREE_VALUE (gimple_asm_output_op (stmt, i));
- if (TREE_CODE (op) == SSA_NAME)
- SSA_NAME_DEF_STMT (op) = stmt;
- }
- }
-
- /* Reset alias information. */
- if (code == GIMPLE_CALL)
- gimple_call_reset_alias_info (stmt);
-
- /* Mark the statement modified so its operand vectors can be filled in. */
- gimple_set_modified (stmt, true);
-
- return stmt;
-}
-
-
-/* Read a basic block with tag TAG from DATA_IN using input block IB.
- FN is the function being processed. */
-
-static void
-input_bb (struct lto_input_block *ib, enum LTO_tags tag,
- struct data_in *data_in, struct function *fn,
- int count_materialization_scale)
-{
- unsigned int index;
- basic_block bb;
- gimple_stmt_iterator bsi;
-
- /* This routine assumes that CFUN is set to FN, as it needs to call
- basic GIMPLE routines that use CFUN. */
- gcc_assert (cfun == fn);
-
- index = lto_input_uleb128 (ib);
- bb = BASIC_BLOCK_FOR_FUNCTION (fn, index);
-
- bb->count = (lto_input_sleb128 (ib) * count_materialization_scale
- + REG_BR_PROB_BASE / 2) / REG_BR_PROB_BASE;
- bb->loop_depth = lto_input_sleb128 (ib);
- bb->frequency = lto_input_sleb128 (ib);
- bb->flags = lto_input_sleb128 (ib);
-
- /* LTO_bb1 has statements. LTO_bb0 does not. */
- if (tag == LTO_bb0)
- return;
-
- bsi = gsi_start_bb (bb);
- tag = input_record_start (ib);
- while (tag)
- {
- gimple stmt = input_gimple_stmt (ib, data_in, fn, tag);
- if (!is_gimple_debug (stmt))
- find_referenced_vars_in (stmt);
- gsi_insert_after (&bsi, stmt, GSI_NEW_STMT);
-
- /* After the statement, expect a 0 delimiter or the EH region
- that the previous statement belongs to. */
- tag = input_record_start (ib);
- lto_tag_check_set (tag, 2, LTO_eh_region, LTO_null);
-
- if (tag == LTO_eh_region)
- {
- HOST_WIDE_INT region = lto_input_sleb128 (ib);
- gcc_assert (region == (int) region);
- add_stmt_to_eh_lp (stmt, region);
- }
-
- tag = input_record_start (ib);
- }
-
- tag = input_record_start (ib);
- while (tag)
- {
- gimple phi = input_phi (ib, bb, data_in, fn);
- find_referenced_vars_in (phi);
- tag = input_record_start (ib);
- }
-}
/* Go through all NODE edges and fixup call_stmt pointers
so they point to STMTS. */
}
-/* Unpack all the non-pointer fields of the TS_BASE structure of
- expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
-{
- /* Note that the code for EXPR has already been unpacked to create EXPR in
- lto_materialize_tree. */
- if (!TYPE_P (expr))
- {
- TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
-
- /* TREE_PUBLIC is used on types to indicate that the type
- has a TYPE_CACHED_VALUES vector. This is not streamed out,
- so we skip it here. */
- TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
- }
- else
- bp_unpack_value (bp, 4);
- TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (DECL_P (expr))
- DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
- else if (TYPE_P (expr))
- TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
- else
- bp_unpack_value (bp, 1);
- TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (TYPE_P (expr))
- TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
- else
- TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_USED (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
- TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (TYPE_P (expr))
- TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
- else if (TREE_CODE (expr) == SSA_NAME)
- SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
- else
- bp_unpack_value (bp, 1);
-}
-
-
-/* Unpack all the non-pointer fields of the TS_REAL_CST structure of
- expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
-{
- unsigned i;
- REAL_VALUE_TYPE r;
- REAL_VALUE_TYPE *rp;
-
- r.cl = (unsigned) bp_unpack_value (bp, 2);
- r.decimal = (unsigned) bp_unpack_value (bp, 1);
- r.sign = (unsigned) bp_unpack_value (bp, 1);
- r.signalling = (unsigned) bp_unpack_value (bp, 1);
- r.canonical = (unsigned) bp_unpack_value (bp, 1);
- r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
- for (i = 0; i < SIGSZ; i++)
- r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
-
- rp = ggc_alloc_real_value ();
- memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
- TREE_REAL_CST_PTR (expr) = rp;
-}
-
-
-/* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
- expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
-{
- struct fixed_value fv;
-
- fv.mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
- fv.data.low = bp_unpack_var_len_int (bp);
- fv.data.high = bp_unpack_var_len_int (bp);
- TREE_FIXED_CST (expr) = fv;
-}
-
-
-/* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
- of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
-{
- DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
- DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_DEBUG_EXPR_IS_FROM (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
-
- if (TREE_CODE (expr) == LABEL_DECL)
- {
- DECL_ERROR_ISSUED (expr) = (unsigned) bp_unpack_value (bp, 1);
- EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
-
- /* Always assume an initial value of -1 for LABEL_DECL_UID to
- force gimple_set_bb to recreate label_to_block_map. */
- LABEL_DECL_UID (expr) = -1;
- }
-
- if (TREE_CODE (expr) == FIELD_DECL)
- {
- DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- expr->decl_common.off_align = bp_unpack_value (bp, 8);
- }
-
- if (TREE_CODE (expr) == RESULT_DECL
- || TREE_CODE (expr) == PARM_DECL
- || TREE_CODE (expr) == VAR_DECL)
- {
- DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (TREE_CODE (expr) == VAR_DECL
- || TREE_CODE (expr) == PARM_DECL)
- DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_RESTRICTED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- }
-}
-
-
-/* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
- of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
-{
- DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
-}
-
-
-/* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
- of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
-{
- DECL_DEFER_OUTPUT (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
- DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
-
- if (TREE_CODE (expr) == VAR_DECL)
- {
- DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IN_TEXT_SECTION (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp, 3);
- }
-
- if (VAR_OR_FUNCTION_DECL_P (expr))
- {
- priority_type p;
- p = (priority_type) bp_unpack_var_len_unsigned (bp);
- SET_DECL_INIT_PRIORITY (expr, p);
- }
-}
-
-
-/* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
- of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
-{
- DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
- BUILT_IN_LAST);
- DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
- = (unsigned) bp_unpack_value (bp, 1);
- DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
- {
- DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp, 11);
- if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
- && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
- fatal_error ("machine independent builtin code out of range");
- else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
- {
- tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
- if (!result || result == error_mark_node)
- fatal_error ("target specific builtin not available");
- }
- }
- if (DECL_STATIC_DESTRUCTOR (expr))
- {
- priority_type p;
- p = (priority_type) bp_unpack_var_len_unsigned (bp);
- SET_DECL_FINI_PRIORITY (expr, p);
- }
-}
-
-
-/* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
- of expression EXPR from bitpack BP. */
+/* LTO streamer hook for reading GIMPLE trees. IB and DATA_IN are as in
+ lto_read_tree. EXPR is the tree was materialized by lto_read_tree and
+ needs GIMPLE specific data to be filled in. */
-static void
-unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
-{
- enum machine_mode mode;
-
- mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
- SET_TYPE_MODE (expr, mode);
- TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
- if (RECORD_OR_UNION_TYPE_P (expr))
- TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr)
- = (unsigned) bp_unpack_value (bp, 2);
- TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
- TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
- TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
- TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
-}
-
-
-/* Unpack all the non-pointer fields of the TS_BLOCK structure
- of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_block_value_fields (struct bitpack_d *bp, tree expr)
-{
- BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
- /* BLOCK_NUMBER is recomputed. */
-}
-
-/* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
- structure of expression EXPR from bitpack BP. */
-
-static void
-unpack_ts_translation_unit_decl_value_fields (struct bitpack_d *bp ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED)
-{
-}
-
-/* Unpack all the non-pointer fields in EXPR into a bit pack. */
-
-static void
-unpack_value_fields (struct bitpack_d *bp, tree expr)
-{
- enum tree_code code;
-
- code = TREE_CODE (expr);
-
- /* Note that all these functions are highly sensitive to changes in
- the types and sizes of each of the fields being packed. */
- unpack_ts_base_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
- unpack_ts_real_cst_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
- unpack_ts_fixed_cst_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
- unpack_ts_decl_common_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
- unpack_ts_decl_wrtl_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
- unpack_ts_decl_with_vis_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
- unpack_ts_function_decl_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
- unpack_ts_type_common_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
- unpack_ts_block_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
- unpack_ts_translation_unit_decl_value_fields (bp, expr);
-
- if (streamer_hooks.unpack_value_fields)
- streamer_hooks.unpack_value_fields (bp, expr);
-}
-
-
-/* Materialize a new tree from input block IB using descriptors in
- DATA_IN. The code for the new tree should match TAG. Store in
- *IX_P the index into the reader cache where the new tree is stored. */
-
-static tree
-lto_materialize_tree (struct lto_input_block *ib, struct data_in *data_in,
- enum LTO_tags tag)
-{
- struct bitpack_d bp;
- enum tree_code code;
- tree result;
-#ifdef LTO_STREAMER_DEBUG
- HOST_WIDEST_INT orig_address_in_writer;
-#endif
-
- result = NULL_TREE;
-
-#ifdef LTO_STREAMER_DEBUG
- /* Read the word representing the memory address for the tree
- as it was written by the writer. This is useful when
- debugging differences between the writer and reader. */
- orig_address_in_writer = lto_input_sleb128 (ib);
- gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
-#endif
-
- code = lto_tag_to_tree_code (tag);
-
- /* We should never see an SSA_NAME tree. Only the version numbers of
- SSA names are ever written out. See input_ssa_names. */
- gcc_assert (code != SSA_NAME);
-
- /* Instantiate a new tree using the header data. */
- if (CODE_CONTAINS_STRUCT (code, TS_STRING))
- result = input_string_cst (data_in, ib);
- else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
- result = input_identifier (data_in, ib);
- else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
- {
- HOST_WIDE_INT len = lto_input_sleb128 (ib);
- result = make_tree_vec (len);
- }
- else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
- {
- unsigned HOST_WIDE_INT len = lto_input_uleb128 (ib);
- result = make_tree_binfo (len);
- }
- else
- {
- /* For all other nodes, see if the streamer knows how to allocate
- it. */
- if (streamer_hooks.alloc_tree)
- result = streamer_hooks.alloc_tree (code, ib, data_in);
-
- /* If the hook did not handle it, materialize the tree with a raw
- make_node call. */
- if (result == NULL_TREE)
- result = make_node (code);
- }
-
-#ifdef LTO_STREAMER_DEBUG
- /* Store the original address of the tree as seen by the writer
- in RESULT's aux field. This is useful when debugging streaming
- problems. This way, a debugging session can be started on
- both writer and reader with a breakpoint using this address
- value in both. */
- lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
-#endif
-
- /* Read the bitpack of non-pointer values from IB. */
- bp = lto_input_bitpack (ib);
-
- /* The first word in BP contains the code of the tree that we
- are about to read. */
- code = (enum tree_code) bp_unpack_value (&bp, 16);
- lto_tag_check (lto_tree_code_to_tag (code), tag);
-
- /* Unpack all the value fields from BP. */
- unpack_value_fields (&bp, result);
-
- /* Enter RESULT in the reader cache. This will make RESULT
- available so that circular references in the rest of the tree
- structure can be resolved in subsequent calls to lto_input_tree. */
- lto_streamer_cache_append (data_in->reader_cache, result);
-
- return result;
-}
-
-
-/* Read all pointer fields in the TS_COMMON structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-
-static void
-lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- if (TREE_CODE (expr) != IDENTIFIER_NODE)
- TREE_TYPE (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_VECTOR structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- TREE_VECTOR_CST_ELTS (expr) = lto_input_chain (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- TREE_REALPART (expr) = lto_input_tree (ib, data_in);
- TREE_IMAGPART (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
- from input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- DECL_NAME (expr) = lto_input_tree (ib, data_in);
- DECL_CONTEXT (expr) = lto_input_tree (ib, data_in);
- DECL_SOURCE_LOCATION (expr) = lto_input_location (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
- input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- DECL_SIZE (expr) = lto_input_tree (ib, data_in);
- DECL_SIZE_UNIT (expr) = lto_input_tree (ib, data_in);
- DECL_ATTRIBUTES (expr) = lto_input_tree (ib, data_in);
-
- /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
-
- if (TREE_CODE (expr) == PARM_DECL)
- TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
-
- if ((TREE_CODE (expr) == VAR_DECL
- || TREE_CODE (expr) == PARM_DECL)
- && DECL_HAS_VALUE_EXPR_P (expr))
- SET_DECL_VALUE_EXPR (expr, lto_input_tree (ib, data_in));
-
- if (TREE_CODE (expr) == VAR_DECL)
- {
- tree dexpr = lto_input_tree (ib, data_in);
- if (dexpr)
- SET_DECL_DEBUG_EXPR (expr, dexpr);
- }
-}
-
-
-/* Read all pointer fields in the TS_DECL_NON_COMMON structure of
- EXPR from input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- if (TREE_CODE (expr) == FUNCTION_DECL)
- {
- DECL_ARGUMENTS (expr) = lto_input_tree (ib, data_in);
- DECL_RESULT (expr) = lto_input_tree (ib, data_in);
- }
- DECL_VINDEX (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
- from input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- tree id;
-
- id = lto_input_tree (ib, data_in);
- if (id)
- {
- gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
- SET_DECL_ASSEMBLER_NAME (expr, id);
- }
-
- DECL_SECTION_NAME (expr) = lto_input_tree (ib, data_in);
- DECL_COMDAT_GROUP (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
- input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- DECL_FIELD_OFFSET (expr) = lto_input_tree (ib, data_in);
- DECL_BIT_FIELD_TYPE (expr) = lto_input_tree (ib, data_in);
- DECL_QUALIFIER (expr) = lto_input_tree (ib, data_in);
- DECL_FIELD_BIT_OFFSET (expr) = lto_input_tree (ib, data_in);
- DECL_FCONTEXT (expr) = lto_input_tree (ib, data_in);
- TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
- from input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- /* DECL_STRUCT_FUNCTION is handled by lto_input_function. FIXME lto,
- maybe it should be handled here? */
- DECL_FUNCTION_PERSONALITY (expr) = lto_input_tree (ib, data_in);
- DECL_FUNCTION_SPECIFIC_TARGET (expr) = lto_input_tree (ib, data_in);
- DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = lto_input_tree (ib, data_in);
-
- /* If the file contains a function with an EH personality set,
- then it was compiled with -fexceptions. In that case, initialize
- the backend EH machinery. */
- if (DECL_FUNCTION_PERSONALITY (expr))
- lto_init_eh ();
-}
-
-
-/* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
- input block IB. DATA_IN contains tables and descriptors for the file
- being read. */
-
-static void
-lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- TYPE_SIZE (expr) = lto_input_tree (ib, data_in);
- TYPE_SIZE_UNIT (expr) = lto_input_tree (ib, data_in);
- TYPE_ATTRIBUTES (expr) = lto_input_tree (ib, data_in);
- TYPE_NAME (expr) = lto_input_tree (ib, data_in);
- /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
- reconstructed during fixup. */
- /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
- during fixup. */
- TYPE_MAIN_VARIANT (expr) = lto_input_tree (ib, data_in);
- TYPE_CONTEXT (expr) = lto_input_tree (ib, data_in);
- /* TYPE_CANONICAL gets re-computed during type merging. */
- TYPE_CANONICAL (expr) = NULL_TREE;
- TYPE_STUB_DECL (expr) = lto_input_tree (ib, data_in);
-}
-
-/* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
- from input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in,
- tree expr)
-{
- if (TREE_CODE (expr) == ENUMERAL_TYPE)
- TYPE_VALUES (expr) = lto_input_tree (ib, data_in);
- else if (TREE_CODE (expr) == ARRAY_TYPE)
- TYPE_DOMAIN (expr) = lto_input_tree (ib, data_in);
- else if (RECORD_OR_UNION_TYPE_P (expr))
- TYPE_FIELDS (expr) = lto_input_tree (ib, data_in);
- else if (TREE_CODE (expr) == FUNCTION_TYPE
- || TREE_CODE (expr) == METHOD_TYPE)
- TYPE_ARG_TYPES (expr) = lto_input_tree (ib, data_in);
-
- if (!POINTER_TYPE_P (expr))
- TYPE_MINVAL (expr) = lto_input_tree (ib, data_in);
- TYPE_MAXVAL (expr) = lto_input_tree (ib, data_in);
- if (RECORD_OR_UNION_TYPE_P (expr))
- TYPE_BINFO (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_LIST structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- TREE_PURPOSE (expr) = lto_input_tree (ib, data_in);
- TREE_VALUE (expr) = lto_input_tree (ib, data_in);
- TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_VEC structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- int i;
-
- /* Note that TREE_VEC_LENGTH was read by lto_materialize_tree to
- instantiate EXPR. */
- for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
- TREE_VEC_ELT (expr, i) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_EXP structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-
-static void
-lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- int i, length;
- location_t loc;
-
- length = lto_input_sleb128 (ib);
- gcc_assert (length == TREE_OPERAND_LENGTH (expr));
-
- for (i = 0; i < length; i++)
- TREE_OPERAND (expr, i) = lto_input_tree (ib, data_in);
-
- loc = lto_input_location (ib, data_in);
- SET_EXPR_LOCATION (expr, loc);
- TREE_BLOCK (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_BLOCK structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- /* Do not stream BLOCK_SOURCE_LOCATION. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
- BLOCK_VARS (expr) = lto_input_chain (ib, data_in);
-
- /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
-
- BLOCK_SUPERCONTEXT (expr) = lto_input_tree (ib, data_in);
- /* Do not stream BLOCK_ABSTRACT_ORIGIN. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
- BLOCK_FRAGMENT_ORIGIN (expr) = lto_input_tree (ib, data_in);
- BLOCK_FRAGMENT_CHAIN (expr) = lto_input_tree (ib, data_in);
- /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
- of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
- stream the child relationship explicitly. */
- if (BLOCK_SUPERCONTEXT (expr)
- && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
- {
- BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
- BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
- }
- /* The global block is rooted at the TU decl. Hook it here to
- avoid the need to stream in this block during WPA time. */
- else if (BLOCK_SUPERCONTEXT (expr)
- && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
- DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
- /* The function-level block is connected at the time we read in
- function bodies for the same reason. */
-}
-
-
-/* Read all pointer fields in the TS_BINFO structure of EXPR from input
- block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- unsigned i, len;
- tree t;
-
- /* Note that the number of slots in EXPR was read in
- lto_materialize_tree when instantiating EXPR. However, the
- vector is empty so we cannot rely on VEC_length to know how many
- elements to read. So, this list is emitted as a 0-terminated
- list on the writer side. */
- do
- {
- t = lto_input_tree (ib, data_in);
- if (t)
- VEC_quick_push (tree, BINFO_BASE_BINFOS (expr), t);
- }
- while (t);
-
- BINFO_OFFSET (expr) = lto_input_tree (ib, data_in);
- BINFO_VTABLE (expr) = lto_input_tree (ib, data_in);
- BINFO_VIRTUALS (expr) = lto_input_tree (ib, data_in);
- BINFO_VPTR_FIELD (expr) = lto_input_tree (ib, data_in);
-
- len = lto_input_uleb128 (ib);
- if (len > 0)
- {
- VEC_reserve_exact (tree, gc, BINFO_BASE_ACCESSES (expr), len);
- for (i = 0; i < len; i++)
- {
- tree a = lto_input_tree (ib, data_in);
- VEC_quick_push (tree, BINFO_BASE_ACCESSES (expr), a);
- }
- }
-
- BINFO_INHERITANCE_CHAIN (expr) = lto_input_tree (ib, data_in);
- BINFO_SUBVTT_INDEX (expr) = lto_input_tree (ib, data_in);
- BINFO_VPTR_INDEX (expr) = lto_input_tree (ib, data_in);
-}
-
-
-/* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
- input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in, tree expr)
-{
- unsigned i, len;
-
- len = lto_input_uleb128 (ib);
- for (i = 0; i < len; i++)
- {
- tree index, value;
-
- index = lto_input_tree (ib, data_in);
- value = lto_input_tree (ib, data_in);
- CONSTRUCTOR_APPEND_ELT (CONSTRUCTOR_ELTS (expr), index, value);
- }
-}
-
-
-/* Input a TS_TARGET_OPTION tree from IB into EXPR. */
-
-static void
-lto_input_ts_target_option (struct lto_input_block *ib, tree expr)
-{
- unsigned i, len;
- struct bitpack_d bp;
- struct cl_target_option *t = TREE_TARGET_OPTION (expr);
-
- bp = lto_input_bitpack (ib);
- len = sizeof (struct cl_target_option);
- for (i = 0; i < len; i++)
- ((unsigned char *)t)[i] = bp_unpack_value (&bp, 8);
- if (bp_unpack_value (&bp, 32) != 0x12345678)
- fatal_error ("cl_target_option size mismatch in LTO reader and writer");
-}
-
-/* Input a TS_TRANSLATION_UNIT_DECL tree from IB and DATA_IN into EXPR. */
-
-static void
-lto_input_ts_translation_unit_decl_tree_pointers (struct lto_input_block *ib,
- struct data_in *data_in,
- tree expr)
-{
- TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (lto_input_string (data_in, ib));
- VEC_safe_push (tree, gc, all_translation_units, expr);
-}
-
-/* Helper for lto_input_tree. Read all pointer fields in EXPR from
- input block IB. DATA_IN contains tables and descriptors for the
- file being read. */
-
-static void
-lto_input_tree_pointers (struct lto_input_block *ib, struct data_in *data_in,
- tree expr)
-{
- enum tree_code code;
-
- code = TREE_CODE (expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
- lto_input_ts_common_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
- lto_input_ts_vector_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
- lto_input_ts_complex_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
- lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
- lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
- lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
- lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
- lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
- lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
- lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
- lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_LIST))
- lto_input_ts_list_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_VEC))
- lto_input_ts_vec_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_EXP))
- lto_input_ts_exp_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
- lto_input_ts_block_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
- lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
- lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
- lto_input_ts_target_option (ib, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
- lto_input_ts_translation_unit_decl_tree_pointers (ib, data_in, expr);
-}
-
-
-/* Read an index IX from input block IB and return the tree node at
- DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
-
-static tree
-lto_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
-{
- unsigned HOST_WIDE_INT ix;
- tree result;
- enum LTO_tags expected_tag;
-
- ix = lto_input_uleb128 (ib);
- expected_tag = lto_input_enum (ib, LTO_tags, LTO_NUM_TAGS);
-
- result = lto_streamer_cache_get (data_in->reader_cache, ix);
- gcc_assert (result
- && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
-
- return result;
-}
-
-
-/* Read a code and class from input block IB and return the
- corresponding builtin. DATA_IN is as in lto_input_tree. */
-
-static tree
-lto_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
-{
- enum built_in_class fclass;
- enum built_in_function fcode;
- const char *asmname;
- tree result;
-
- fclass = lto_input_enum (ib, built_in_class, BUILT_IN_LAST);
- gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
-
- fcode = (enum built_in_function) lto_input_uleb128 (ib);
-
- if (fclass == BUILT_IN_NORMAL)
- {
- if (fcode >= END_BUILTINS)
- fatal_error ("machine independent builtin code out of range");
- result = built_in_decls[fcode];
- gcc_assert (result);
- }
- else if (fclass == BUILT_IN_MD)
- {
- result = targetm.builtin_decl (fcode, true);
- if (!result || result == error_mark_node)
- fatal_error ("target specific builtin not available");
- }
- else
- gcc_unreachable ();
-
- asmname = lto_input_string (data_in, ib);
- if (asmname)
- set_builtin_user_assembler_name (result, asmname);
-
- lto_streamer_cache_append (data_in->reader_cache, result);
-
- return result;
-}
-
-
-/* Read the physical representation of a tree node with tag TAG from
- input block IB using the per-file context in DATA_IN. */
-
-static tree
-lto_read_tree (struct lto_input_block *ib, struct data_in *data_in,
- enum LTO_tags tag)
-{
- tree result;
-
- result = lto_materialize_tree (ib, data_in, tag);
-
- /* Read all the pointer fields in RESULT. */
- lto_input_tree_pointers (ib, data_in, result);
-
- /* Call back into the streaming module to read anything else it
- may need. */
- if (streamer_hooks.read_tree)
- streamer_hooks.read_tree (ib, data_in, result);
-
- /* We should never try to instantiate an MD or NORMAL builtin here. */
- if (TREE_CODE (result) == FUNCTION_DECL)
- gcc_assert (!lto_stream_as_builtin_p (result));
-
- /* end_marker = */ lto_input_1_unsigned (ib);
-
-#ifdef LTO_STREAMER_DEBUG
- /* Remove the mapping to RESULT's original address set by
- lto_materialize_tree. */
- lto_orig_address_remove (result);
-#endif
-
- return result;
-}
-
-
-/* LTO streamer hook for reading GIMPLE trees. IB and DATA_IN are as in
- lto_read_tree. EXPR is the tree was materialized by lto_read_tree and
- needs GIMPLE specific data to be filled in. */
-
-void
-lto_streamer_read_tree (struct lto_input_block *ib, struct data_in *data_in,
- tree expr)
+void
+lto_streamer_read_tree (struct lto_input_block *ib, struct data_in *data_in,
+ tree expr)
{
if (DECL_P (expr)
&& TREE_CODE (expr) != FUNCTION_DECL
}
-/* Read and INTEGER_CST node from input block IB using the per-file
- context in DATA_IN. */
-
-static tree
-lto_input_integer_cst (struct lto_input_block *ib, struct data_in *data_in)
-{
- tree result, type;
- HOST_WIDE_INT low, high;
- bool overflow_p;
-
- type = lto_input_tree (ib, data_in);
- overflow_p = (lto_input_1_unsigned (ib) != 0);
- low = lto_input_uleb128 (ib);
- high = lto_input_uleb128 (ib);
- result = build_int_cst_wide (type, low, high);
-
- /* If the original constant had overflown, build a replica of RESULT to
- avoid modifying the shared constant returned by build_int_cst_wide. */
- if (overflow_p)
- {
- result = copy_node (result);
- TREE_OVERFLOW (result) = 1;
- }
-
- return result;
-}
-
-
-/* Read a tree from input block IB using the per-file context in
- DATA_IN. This context is used, for example, to resolve references
- to previously read nodes. */
-
-tree
-lto_input_tree (struct lto_input_block *ib, struct data_in *data_in)
-{
- enum LTO_tags tag;
- tree result;
-
- tag = input_record_start (ib);
- gcc_assert ((unsigned) tag < (unsigned) LTO_NUM_TAGS);
-
- if (tag == LTO_null)
- result = NULL_TREE;
- else if (tag >= LTO_field_decl_ref && tag <= LTO_global_decl_ref)
- {
- /* If TAG is a reference to an indexable tree, the next value
- in IB is the index into the table where we expect to find
- that tree. */
- result = lto_input_tree_ref (ib, data_in, cfun, tag);
- }
- else if (tag == LTO_tree_pickle_reference)
- {
- /* If TAG is a reference to a previously read tree, look it up in
- the reader cache. */
- result = lto_get_pickled_tree (ib, data_in);
- }
- else if (tag == LTO_builtin_decl)
- {
- /* If we are going to read a built-in function, all we need is
- the code and class. */
- result = lto_get_builtin_tree (ib, data_in);
- }
- else if (tag == lto_tree_code_to_tag (INTEGER_CST))
- {
- /* For integer constants we only need the type and its hi/low
- words. */
- result = lto_input_integer_cst (ib, data_in);
- }
- else
- {
- /* Otherwise, materialize a new node from IB. */
- result = lto_read_tree (ib, data_in, tag);
- }
-
- return result;
-}
-
-
/* Initialization for the LTO reader. */
void
#include "vec.h"
#include "lto-symtab.h"
#include "lto-streamer.h"
-
-
-struct string_slot
-{
- const char *s;
- int len;
- unsigned int slot_num;
-};
-
-
-/* Returns a hash code for P.
- Shamelessly stollen from libiberty. */
-
-static hashval_t
-hash_string_slot_node (const void *p)
-{
- const struct string_slot *ds = (const struct string_slot *) p;
- hashval_t r = ds->len;
- int i;
-
- for (i = 0; i < ds->len; i++)
- r = r * 67 + (unsigned)ds->s[i] - 113;
- return r;
-}
-
-
-/* Returns nonzero if P1 and P2 are equal. */
-
-static int
-eq_string_slot_node (const void *p1, const void *p2)
-{
- const struct string_slot *ds1 = (const struct string_slot *) p1;
- const struct string_slot *ds2 = (const struct string_slot *) p2;
-
- if (ds1->len == ds2->len)
- return memcmp (ds1->s, ds2->s, ds1->len) == 0;
-
- return 0;
-}
+#include "data-streamer.h"
+#include "gimple-streamer.h"
+#include "tree-streamer.h"
+#include "streamer-hooks.h"
/* Clear the line info stored in DATA_IN. */
ob->writer_cache = lto_streamer_cache_create ();
if (section_type == LTO_section_function_body)
- ob->cfg_stream = XCNEW (struct lto_output_stream);
-
- clear_line_info (ob);
-
- ob->string_hash_table = htab_create (37, hash_string_slot_node,
- eq_string_slot_node, NULL);
- gcc_obstack_init (&ob->obstack);
-
- return ob;
-}
-
-
-/* Destroy the output block OB. */
-
-void
-destroy_output_block (struct output_block *ob)
-{
- enum lto_section_type section_type = ob->section_type;
-
- htab_delete (ob->string_hash_table);
-
- free (ob->main_stream);
- free (ob->string_stream);
- if (section_type == LTO_section_function_body)
- free (ob->cfg_stream);
-
- lto_streamer_cache_delete (ob->writer_cache);
- obstack_free (&ob->obstack, NULL);
-
- free (ob);
-}
-
-/* Return index used to reference STRING of LEN characters in the string table
- in OB. The string might or might not include a trailing '\0'.
- Then put the index onto the INDEX_STREAM.
- When PERSISTENT is set, the string S is supposed to not change during
- duration of the OB and thus OB can keep pointer into it. */
-
-static unsigned
-lto_string_index (struct output_block *ob,
- const char *s,
- unsigned int len,
- bool persistent)
-{
- struct string_slot **slot;
- struct string_slot s_slot;
-
- s_slot.s = s;
- s_slot.len = len;
- s_slot.slot_num = 0;
-
- slot = (struct string_slot **) htab_find_slot (ob->string_hash_table,
- &s_slot, INSERT);
- if (*slot == NULL)
- {
- struct lto_output_stream *string_stream = ob->string_stream;
- unsigned int start = string_stream->total_size;
- struct string_slot *new_slot
- = XOBNEW (&ob->obstack, struct string_slot);
- const char *string;
-
- if (!persistent)
- {
- char *tmp;
- string = tmp = XOBNEWVEC (&ob->obstack, char, len);
- memcpy (tmp, s, len);
- }
- else
- string = s;
-
- new_slot->s = string;
- new_slot->len = len;
- new_slot->slot_num = start;
- *slot = new_slot;
- lto_output_uleb128_stream (string_stream, len);
- lto_output_data_stream (string_stream, string, len);
- return start + 1;
- }
- else
- {
- struct string_slot *old_slot = *slot;
- return old_slot->slot_num + 1;
- }
-}
-
-
-/* Output STRING of LEN characters to the string
- table in OB. The string might or might not include a trailing '\0'.
- Then put the index onto the INDEX_STREAM.
- When PERSISTENT is set, the string S is supposed to not change during
- duration of the OB and thus OB can keep pointer into it. */
-
-static void
-lto_output_string_with_length (struct output_block *ob,
- struct lto_output_stream *index_stream,
- const char *s,
- unsigned int len,
- bool persistent)
-{
- if (s)
- lto_output_uleb128_stream (index_stream,
- lto_string_index (ob, s, len, persistent));
- else
- lto_output_1_stream (index_stream, 0);
-}
-
-/* Output the '\0' terminated STRING to the string
- table in OB. Then put the index onto the INDEX_STREAM.
- When PERSISTENT is set, the string S is supposed to not change during
- duration of the OB and thus OB can keep pointer into it. */
-
-static void
-lto_output_string (struct output_block *ob,
- struct lto_output_stream *index_stream,
- const char *string,
- bool persistent)
-{
- if (string)
- lto_output_string_with_length (ob, index_stream, string,
- strlen (string) + 1,
- persistent);
- else
- lto_output_1_stream (index_stream, 0);
-}
-
-
-/* Output the STRING constant to the string
- table in OB. Then put the index onto the INDEX_STREAM. */
-
-static void
-output_string_cst (struct output_block *ob,
- struct lto_output_stream *index_stream,
- tree string)
-{
- lto_output_string_with_length (ob, index_stream,
- TREE_STRING_POINTER (string),
- TREE_STRING_LENGTH (string),
- true);
-}
-
-
-/* Output the identifier ID to the string
- table in OB. Then put the index onto the INDEX_STREAM. */
-
-static void
-output_identifier (struct output_block *ob,
- struct lto_output_stream *index_stream,
- tree id)
-{
- lto_output_string_with_length (ob, index_stream,
- IDENTIFIER_POINTER (id),
- IDENTIFIER_LENGTH (id),
- true);
-}
-
-
-/* Write a zero to the output stream. */
-
-static void
-output_zero (struct output_block *ob)
-{
- lto_output_1_stream (ob->main_stream, 0);
-}
-
-
-/* Output an unsigned LEB128 quantity to OB->main_stream. */
-
-static void
-output_uleb128 (struct output_block *ob, unsigned HOST_WIDE_INT work)
-{
- lto_output_uleb128_stream (ob->main_stream, work);
-}
-
-
-/* Output a signed LEB128 quantity to OB->main_stream. */
-
-static void
-output_sleb128 (struct output_block *ob, HOST_WIDE_INT work)
-{
- lto_output_sleb128_stream (ob->main_stream, work);
-}
-
-
-/* Output the start of a record with TAG to output block OB. */
-
-static inline void
-output_record_start (struct output_block *ob, enum LTO_tags tag)
-{
- lto_output_enum (ob->main_stream, LTO_tags, LTO_NUM_TAGS, tag);
-}
-
-
-/* Look up NODE in the type table and write the index for it to OB. */
-
-static void
-output_type_ref (struct output_block *ob, tree node)
-{
- output_record_start (ob, LTO_type_ref);
- lto_output_type_ref_index (ob->decl_state, ob->main_stream, node);
-}
-
-
-/* Pack all the non-pointer fields of the TS_BASE structure of
- expression EXPR into bitpack BP. */
-
-static void
-pack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_value (bp, TREE_CODE (expr), 16);
- if (!TYPE_P (expr))
- {
- bp_pack_value (bp, TREE_SIDE_EFFECTS (expr), 1);
- bp_pack_value (bp, TREE_CONSTANT (expr), 1);
- bp_pack_value (bp, TREE_READONLY (expr), 1);
-
- /* TREE_PUBLIC is used on types to indicate that the type
- has a TYPE_CACHED_VALUES vector. This is not streamed out,
- so we skip it here. */
- bp_pack_value (bp, TREE_PUBLIC (expr), 1);
- }
- else
- bp_pack_value (bp, 0, 4);
- bp_pack_value (bp, TREE_ADDRESSABLE (expr), 1);
- bp_pack_value (bp, TREE_THIS_VOLATILE (expr), 1);
- if (DECL_P (expr))
- bp_pack_value (bp, DECL_UNSIGNED (expr), 1);
- else if (TYPE_P (expr))
- bp_pack_value (bp, TYPE_UNSIGNED (expr), 1);
- else
- bp_pack_value (bp, 0, 1);
- /* We write debug info two times, do not confuse the second one. */
- bp_pack_value (bp, TYPE_P (expr) ? 0 : TREE_ASM_WRITTEN (expr), 1);
- if (TYPE_P (expr))
- bp_pack_value (bp, TYPE_ARTIFICIAL (expr), 1);
- else
- bp_pack_value (bp, TREE_NO_WARNING (expr), 1);
- bp_pack_value (bp, TREE_USED (expr), 1);
- bp_pack_value (bp, TREE_NOTHROW (expr), 1);
- bp_pack_value (bp, TREE_STATIC (expr), 1);
- bp_pack_value (bp, TREE_PRIVATE (expr), 1);
- bp_pack_value (bp, TREE_PROTECTED (expr), 1);
- bp_pack_value (bp, TREE_DEPRECATED (expr), 1);
- if (TYPE_P (expr))
- bp_pack_value (bp, TYPE_SATURATING (expr), 1);
- else if (TREE_CODE (expr) == SSA_NAME)
- bp_pack_value (bp, SSA_NAME_IS_DEFAULT_DEF (expr), 1);
- else
- bp_pack_value (bp, 0, 1);
-}
-
-
-/* Pack all the non-pointer fields of the TS_REAL_CST structure of
- expression EXPR into bitpack BP. */
-
-static void
-pack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
-{
- unsigned i;
- REAL_VALUE_TYPE r;
-
- r = TREE_REAL_CST (expr);
- bp_pack_value (bp, r.cl, 2);
- bp_pack_value (bp, r.decimal, 1);
- bp_pack_value (bp, r.sign, 1);
- bp_pack_value (bp, r.signalling, 1);
- bp_pack_value (bp, r.canonical, 1);
- bp_pack_value (bp, r.uexp, EXP_BITS);
- for (i = 0; i < SIGSZ; i++)
- bp_pack_value (bp, r.sig[i], HOST_BITS_PER_LONG);
-}
-
-
-/* Pack all the non-pointer fields of the TS_FIXED_CST structure of
- expression EXPR into bitpack BP. */
-
-static void
-pack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
-{
- struct fixed_value fv = TREE_FIXED_CST (expr);
- bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, fv.mode);
- bp_pack_var_len_int (bp, fv.data.low);
- bp_pack_var_len_int (bp, fv.data.high);
-}
-
-
-/* Pack all the non-pointer fields of the TS_DECL_COMMON structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, DECL_MODE (expr));
- bp_pack_value (bp, DECL_NONLOCAL (expr), 1);
- bp_pack_value (bp, DECL_VIRTUAL_P (expr), 1);
- bp_pack_value (bp, DECL_IGNORED_P (expr), 1);
- bp_pack_value (bp, DECL_ABSTRACT (expr), 1);
- bp_pack_value (bp, DECL_ARTIFICIAL (expr), 1);
- bp_pack_value (bp, DECL_USER_ALIGN (expr), 1);
- bp_pack_value (bp, DECL_PRESERVE_P (expr), 1);
- bp_pack_value (bp, DECL_DEBUG_EXPR_IS_FROM (expr), 1);
- bp_pack_value (bp, DECL_EXTERNAL (expr), 1);
- bp_pack_value (bp, DECL_GIMPLE_REG_P (expr), 1);
- bp_pack_var_len_unsigned (bp, DECL_ALIGN (expr));
-
- if (TREE_CODE (expr) == LABEL_DECL)
- {
- /* Note that we do not write LABEL_DECL_UID. The reader will
- always assume an initial value of -1 so that the
- label_to_block_map is recreated by gimple_set_bb. */
- bp_pack_value (bp, DECL_ERROR_ISSUED (expr), 1);
- bp_pack_var_len_unsigned (bp, EH_LANDING_PAD_NR (expr));
- }
-
- if (TREE_CODE (expr) == FIELD_DECL)
- {
- bp_pack_value (bp, DECL_PACKED (expr), 1);
- bp_pack_value (bp, DECL_NONADDRESSABLE_P (expr), 1);
- bp_pack_value (bp, expr->decl_common.off_align, 8);
- }
-
- if (TREE_CODE (expr) == RESULT_DECL
- || TREE_CODE (expr) == PARM_DECL
- || TREE_CODE (expr) == VAR_DECL)
- {
- bp_pack_value (bp, DECL_BY_REFERENCE (expr), 1);
- if (TREE_CODE (expr) == VAR_DECL
- || TREE_CODE (expr) == PARM_DECL)
- bp_pack_value (bp, DECL_HAS_VALUE_EXPR_P (expr), 1);
- bp_pack_value (bp, DECL_RESTRICTED_P (expr), 1);
- }
-}
-
-
-/* Pack all the non-pointer fields of the TS_DECL_WRTL structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_value (bp, DECL_REGISTER (expr), 1);
-}
-
-
-/* Pack all the non-pointer fields of the TS_DECL_WITH_VIS structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_value (bp, DECL_DEFER_OUTPUT (expr), 1);
- bp_pack_value (bp, DECL_COMMON (expr), 1);
- bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1);
- bp_pack_value (bp, DECL_WEAK (expr), 1);
- bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), 1);
- bp_pack_value (bp, DECL_COMDAT (expr), 1);
- bp_pack_value (bp, DECL_VISIBILITY (expr), 2);
- bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), 1);
-
- if (TREE_CODE (expr) == VAR_DECL)
- {
- bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1);
- bp_pack_value (bp, DECL_IN_TEXT_SECTION (expr), 1);
- bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1);
- bp_pack_value (bp, DECL_TLS_MODEL (expr), 3);
- }
-
- if (VAR_OR_FUNCTION_DECL_P (expr))
- bp_pack_var_len_unsigned (bp, DECL_INIT_PRIORITY (expr));
-}
-
-
-/* Pack all the non-pointer fields of the TS_FUNCTION_DECL structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
-{
- /* For normal/md builtins we only write the class and code, so they
- should never be handled here. */
- gcc_assert (!lto_stream_as_builtin_p (expr));
-
- bp_pack_enum (bp, built_in_class, BUILT_IN_LAST,
- DECL_BUILT_IN_CLASS (expr));
- bp_pack_value (bp, DECL_STATIC_CONSTRUCTOR (expr), 1);
- bp_pack_value (bp, DECL_STATIC_DESTRUCTOR (expr), 1);
- bp_pack_value (bp, DECL_UNINLINABLE (expr), 1);
- bp_pack_value (bp, DECL_POSSIBLY_INLINED (expr), 1);
- bp_pack_value (bp, DECL_IS_NOVOPS (expr), 1);
- bp_pack_value (bp, DECL_IS_RETURNS_TWICE (expr), 1);
- bp_pack_value (bp, DECL_IS_MALLOC (expr), 1);
- bp_pack_value (bp, DECL_IS_OPERATOR_NEW (expr), 1);
- bp_pack_value (bp, DECL_DECLARED_INLINE_P (expr), 1);
- bp_pack_value (bp, DECL_STATIC_CHAIN (expr), 1);
- bp_pack_value (bp, DECL_NO_INLINE_WARNING_P (expr), 1);
- bp_pack_value (bp, DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr), 1);
- bp_pack_value (bp, DECL_NO_LIMIT_STACK (expr), 1);
- bp_pack_value (bp, DECL_DISREGARD_INLINE_LIMITS (expr), 1);
- bp_pack_value (bp, DECL_PURE_P (expr), 1);
- bp_pack_value (bp, DECL_LOOPING_CONST_OR_PURE_P (expr), 1);
- if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
- bp_pack_value (bp, DECL_FUNCTION_CODE (expr), 11);
- if (DECL_STATIC_DESTRUCTOR (expr))
- bp_pack_var_len_unsigned (bp, DECL_FINI_PRIORITY (expr));
-}
-
-
-/* Pack all the non-pointer fields of the TS_TYPE_COMMON structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, TYPE_MODE (expr));
- bp_pack_value (bp, TYPE_STRING_FLAG (expr), 1);
- bp_pack_value (bp, TYPE_NO_FORCE_BLK (expr), 1);
- bp_pack_value (bp, TYPE_NEEDS_CONSTRUCTING (expr), 1);
- if (RECORD_OR_UNION_TYPE_P (expr))
- bp_pack_value (bp, TYPE_TRANSPARENT_AGGR (expr), 1);
- bp_pack_value (bp, TYPE_PACKED (expr), 1);
- bp_pack_value (bp, TYPE_RESTRICT (expr), 1);
- bp_pack_value (bp, TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr), 2);
- bp_pack_value (bp, TYPE_USER_ALIGN (expr), 1);
- bp_pack_value (bp, TYPE_READONLY (expr), 1);
- bp_pack_var_len_unsigned (bp, TYPE_PRECISION (expr));
- bp_pack_var_len_unsigned (bp, TYPE_ALIGN (expr));
- bp_pack_var_len_int (bp, TYPE_ALIAS_SET (expr) == 0 ? 0 : -1);
-}
-
-
-/* Pack all the non-pointer fields of the TS_BLOCK structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_block_value_fields (struct bitpack_d *bp, tree expr)
-{
- bp_pack_value (bp, BLOCK_ABSTRACT (expr), 1);
- /* BLOCK_NUMBER is recomputed. */
-}
-
-/* Pack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL structure
- of expression EXPR into bitpack BP. */
-
-static void
-pack_ts_translation_unit_decl_value_fields (struct bitpack_d *bp ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED)
-{
-}
-
-/* Pack all the non-pointer fields in EXPR into a bit pack. */
-
-static void
-pack_value_fields (struct bitpack_d *bp, tree expr)
-{
- enum tree_code code;
-
- code = TREE_CODE (expr);
-
- /* Note that all these functions are highly sensitive to changes in
- the types and sizes of each of the fields being packed. */
- pack_ts_base_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
- pack_ts_real_cst_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
- pack_ts_fixed_cst_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
- pack_ts_decl_common_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
- pack_ts_decl_wrtl_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
- pack_ts_decl_with_vis_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
- pack_ts_function_decl_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
- pack_ts_type_common_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
- pack_ts_block_value_fields (bp, expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
- pack_ts_translation_unit_decl_value_fields (bp, expr);
-
- if (streamer_hooks.pack_value_fields)
- streamer_hooks.pack_value_fields (bp, expr);
-}
-
-
-/* Output info about new location into bitpack BP.
- After outputting bitpack, lto_output_location_data has
- to be done to output actual data. */
-
-static inline void
-lto_output_location_bitpack (struct bitpack_d *bp,
- struct output_block *ob,
- location_t loc)
-{
- expanded_location xloc;
-
- bp_pack_value (bp, loc == UNKNOWN_LOCATION, 1);
- if (loc == UNKNOWN_LOCATION)
- return;
-
- xloc = expand_location (loc);
-
- bp_pack_value (bp, ob->current_file != xloc.file, 1);
- if (ob->current_file != xloc.file)
- bp_pack_var_len_unsigned (bp, lto_string_index (ob,
- xloc.file,
- strlen (xloc.file) + 1,
- true));
- ob->current_file = xloc.file;
-
- bp_pack_value (bp, ob->current_line != xloc.line, 1);
- if (ob->current_line != xloc.line)
- bp_pack_var_len_unsigned (bp, xloc.line);
- ob->current_line = xloc.line;
-
- bp_pack_value (bp, ob->current_col != xloc.column, 1);
- if (ob->current_col != xloc.column)
- bp_pack_var_len_unsigned (bp, xloc.column);
- ob->current_col = xloc.column;
-}
-
-
-/* Emit location LOC to output block OB.
- When bitpack is handy, it is more space effecient to call
- lto_output_location_bitpack with existing bitpack. */
-
-static void
-lto_output_location (struct output_block *ob, location_t loc)
-{
- struct bitpack_d bp = bitpack_create (ob->main_stream);
- lto_output_location_bitpack (&bp, ob, loc);
- lto_output_bitpack (&bp);
-}
-
-
-/* Return true if tree node T is written to various tables. For these
- nodes, we sometimes want to write their phyiscal representation
- (via lto_output_tree), and sometimes we need to emit an index
- reference into a table (via lto_output_tree_ref). */
-
-static bool
-tree_is_indexable (tree t)
-{
- if (TREE_CODE (t) == PARM_DECL)
- return false;
- else if (TREE_CODE (t) == VAR_DECL && decl_function_context (t)
- && !TREE_STATIC (t))
- return false;
- else
- return (TYPE_P (t) || DECL_P (t) || TREE_CODE (t) == SSA_NAME);
-}
-
-
-/* If EXPR is an indexable tree node, output a reference to it to
- output block OB. Otherwise, output the physical representation of
- EXPR to OB. */
-
-static void
-lto_output_tree_ref (struct output_block *ob, tree expr)
-{
- enum tree_code code;
-
- if (expr == NULL_TREE)
- {
- output_record_start (ob, LTO_null);
- return;
- }
-
- if (!tree_is_indexable (expr))
- {
- /* Even though we are emitting the physical representation of
- EXPR, its leaves must be emitted as references. */
- lto_output_tree (ob, expr, true);
- return;
- }
-
- if (TYPE_P (expr))
- {
- output_type_ref (ob, expr);
- return;
- }
-
- code = TREE_CODE (expr);
- switch (code)
- {
- case SSA_NAME:
- output_record_start (ob, LTO_ssa_name_ref);
- output_uleb128 (ob, SSA_NAME_VERSION (expr));
- break;
-
- case FIELD_DECL:
- output_record_start (ob, LTO_field_decl_ref);
- lto_output_field_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case FUNCTION_DECL:
- output_record_start (ob, LTO_function_decl_ref);
- lto_output_fn_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case VAR_DECL:
- case DEBUG_EXPR_DECL:
- gcc_assert (decl_function_context (expr) == NULL
- || TREE_STATIC (expr));
- output_record_start (ob, LTO_global_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case CONST_DECL:
- output_record_start (ob, LTO_const_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case IMPORTED_DECL:
- gcc_assert (decl_function_context (expr) == NULL);
- output_record_start (ob, LTO_imported_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case TYPE_DECL:
- output_record_start (ob, LTO_type_decl_ref);
- lto_output_type_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case NAMESPACE_DECL:
- output_record_start (ob, LTO_namespace_decl_ref);
- lto_output_namespace_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case LABEL_DECL:
- output_record_start (ob, LTO_label_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case RESULT_DECL:
- output_record_start (ob, LTO_result_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- case TRANSLATION_UNIT_DECL:
- output_record_start (ob, LTO_translation_unit_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- break;
-
- default:
- {
- /* See if the streamer allows this node to be indexable
- like other global declarations. */
- if (streamer_hooks.indexable_with_decls_p
- && streamer_hooks.indexable_with_decls_p (expr))
- {
- output_record_start (ob, LTO_global_decl_ref);
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
- }
- else
- {
- /* No other node is indexable, so it should have been
- handled by lto_output_tree. */
- gcc_unreachable ();
- }
- }
- }
-}
-
-
-/* If REF_P is true, emit a reference to EXPR in output block OB,
- otherwise emit the physical representation of EXPR in OB. */
-
-static inline void
-lto_output_tree_or_ref (struct output_block *ob, tree expr, bool ref_p)
-{
- if (ref_p)
- lto_output_tree_ref (ob, expr);
- else
- lto_output_tree (ob, expr, false);
-}
-
-
-/* Emit the chain of tree nodes starting at T. OB is the output block
- to write to. REF_P is true if chain elements should be emitted
- as references. */
-
-static void
-lto_output_chain (struct output_block *ob, tree t, bool ref_p)
-{
- int i, count;
-
- count = list_length (t);
- output_sleb128 (ob, count);
- for (i = 0; i < count; i++)
- {
- tree saved_chain;
-
- /* Clear TREE_CHAIN to avoid blindly recursing into the rest
- of the list. */
- saved_chain = TREE_CHAIN (t);
- TREE_CHAIN (t) = NULL_TREE;
-
- lto_output_tree_or_ref (ob, t, ref_p);
-
- TREE_CHAIN (t) = saved_chain;
- t = TREE_CHAIN (t);
- }
-}
-
-
-/* Write all pointer fields in the TS_COMMON structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_common_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- if (TREE_CODE (expr) != IDENTIFIER_NODE)
- lto_output_tree_or_ref (ob, TREE_TYPE (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_VECTOR structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_vector_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_chain (ob, TREE_VECTOR_CST_ELTS (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_COMPLEX structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_complex_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, TREE_REALPART (expr), ref_p);
- lto_output_tree_or_ref (ob, TREE_IMAGPART (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_DECL_MINIMAL structure of EXPR
- to output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_decl_minimal_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, DECL_NAME (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_CONTEXT (expr), ref_p);
- lto_output_location (ob, DECL_SOURCE_LOCATION (expr));
-}
-
-
-/* Write all pointer fields in the TS_DECL_COMMON structure of EXPR to
- output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_decl_common_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, DECL_SIZE (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_SIZE_UNIT (expr), ref_p);
-
- /* Note, DECL_INITIAL is not handled here. Since DECL_INITIAL needs
- special handling in LTO, it must be handled by streamer hooks. */
-
- lto_output_tree_or_ref (ob, DECL_ATTRIBUTES (expr), ref_p);
-
- /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
-
- if (TREE_CODE (expr) == PARM_DECL)
- lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
-
- if ((TREE_CODE (expr) == VAR_DECL
- || TREE_CODE (expr) == PARM_DECL)
- && DECL_HAS_VALUE_EXPR_P (expr))
- lto_output_tree_or_ref (ob, DECL_VALUE_EXPR (expr), ref_p);
-
- if (TREE_CODE (expr) == VAR_DECL)
- lto_output_tree_or_ref (ob, DECL_DEBUG_EXPR (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_DECL_NON_COMMON structure of
- EXPR to output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_decl_non_common_tree_pointers (struct output_block *ob,
- tree expr, bool ref_p)
-{
- if (TREE_CODE (expr) == FUNCTION_DECL)
- {
- lto_output_tree_or_ref (ob, DECL_ARGUMENTS (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_RESULT (expr), ref_p);
- }
- lto_output_tree_or_ref (ob, DECL_VINDEX (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
- to output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_decl_with_vis_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- /* Make sure we don't inadvertently set the assembler name. */
- if (DECL_ASSEMBLER_NAME_SET_P (expr))
- lto_output_tree_or_ref (ob, DECL_ASSEMBLER_NAME (expr), ref_p);
- else
- output_record_start (ob, LTO_null);
-
- lto_output_tree_or_ref (ob, DECL_SECTION_NAME (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_COMDAT_GROUP (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_FIELD_DECL structure of EXPR to
- output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_field_decl_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, DECL_FIELD_OFFSET (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_BIT_FIELD_TYPE (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_QUALIFIER (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_FIELD_BIT_OFFSET (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_FCONTEXT (expr), ref_p);
- lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_FUNCTION_DECL structure of EXPR
- to output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_function_decl_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- /* DECL_STRUCT_FUNCTION is handled by lto_output_function. FIXME lto,
- maybe it should be handled here? */
- lto_output_tree_or_ref (ob, DECL_FUNCTION_PERSONALITY (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_FUNCTION_SPECIFIC_TARGET (expr), ref_p);
- lto_output_tree_or_ref (ob, DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr),
- ref_p);
-}
-
-
-/* Write all pointer fields in the TS_TYPE_COMMON structure of EXPR to
- output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_type_common_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, TYPE_SIZE (expr), ref_p);
- lto_output_tree_or_ref (ob, TYPE_SIZE_UNIT (expr), ref_p);
- lto_output_tree_or_ref (ob, TYPE_ATTRIBUTES (expr), ref_p);
- lto_output_tree_or_ref (ob, TYPE_NAME (expr), ref_p);
- /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
- reconstructed during fixup. */
- /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
- during fixup. */
- lto_output_tree_or_ref (ob, TYPE_MAIN_VARIANT (expr), ref_p);
- lto_output_tree_or_ref (ob, TYPE_CONTEXT (expr), ref_p);
- /* TYPE_CANONICAL is re-computed during type merging, so no need
- to stream it here. */
- lto_output_tree_or_ref (ob, TYPE_STUB_DECL (expr), ref_p);
-}
-
-/* Write all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
- to output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_type_non_common_tree_pointers (struct output_block *ob,
- tree expr, bool ref_p)
-{
- if (TREE_CODE (expr) == ENUMERAL_TYPE)
- lto_output_tree_or_ref (ob, TYPE_VALUES (expr), ref_p);
- else if (TREE_CODE (expr) == ARRAY_TYPE)
- lto_output_tree_or_ref (ob, TYPE_DOMAIN (expr), ref_p);
- else if (RECORD_OR_UNION_TYPE_P (expr))
- lto_output_tree_or_ref (ob, TYPE_FIELDS (expr), ref_p);
- else if (TREE_CODE (expr) == FUNCTION_TYPE
- || TREE_CODE (expr) == METHOD_TYPE)
- lto_output_tree_or_ref (ob, TYPE_ARG_TYPES (expr), ref_p);
-
- if (!POINTER_TYPE_P (expr))
- lto_output_tree_or_ref (ob, TYPE_MINVAL (expr), ref_p);
- lto_output_tree_or_ref (ob, TYPE_MAXVAL (expr), ref_p);
- if (RECORD_OR_UNION_TYPE_P (expr))
- lto_output_tree_or_ref (ob, TYPE_BINFO (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_LIST structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_list_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- lto_output_tree_or_ref (ob, TREE_PURPOSE (expr), ref_p);
- lto_output_tree_or_ref (ob, TREE_VALUE (expr), ref_p);
- lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_VEC structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_vec_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
-{
- int i;
-
- /* Note that the number of slots for EXPR has already been emitted
- in EXPR's header (see lto_output_tree_header). */
- for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
- lto_output_tree_or_ref (ob, TREE_VEC_ELT (expr, i), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_EXP structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_exp_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
-{
- int i;
-
- output_sleb128 (ob, TREE_OPERAND_LENGTH (expr));
- for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
- lto_output_tree_or_ref (ob, TREE_OPERAND (expr, i), ref_p);
- lto_output_location (ob, EXPR_LOCATION (expr));
- lto_output_tree_or_ref (ob, TREE_BLOCK (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_BLOCK structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_block_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- /* Do not stream BLOCK_SOURCE_LOCATION. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
- lto_output_chain (ob, BLOCK_VARS (expr), ref_p);
-
- /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
-
- lto_output_tree_or_ref (ob, BLOCK_SUPERCONTEXT (expr), ref_p);
- /* Do not stream BLOCK_ABSTRACT_ORIGIN. We cannot handle debug information
- for early inlining so drop it on the floor instead of ICEing in
- dwarf2out.c. */
- lto_output_tree_or_ref (ob, BLOCK_FRAGMENT_ORIGIN (expr), ref_p);
- lto_output_tree_or_ref (ob, BLOCK_FRAGMENT_CHAIN (expr), ref_p);
- /* Do not output BLOCK_SUBBLOCKS. Instead on streaming-in this
- list is re-constructed from BLOCK_SUPERCONTEXT. */
-}
-
-
-/* Write all pointer fields in the TS_BINFO structure of EXPR to output
- block OB. If REF_P is true, write a reference to EXPR's pointer
- fields. */
-
-static void
-lto_output_ts_binfo_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- unsigned i;
- tree t;
-
- /* Note that the number of BINFO slots has already been emitted in
- EXPR's header (see lto_output_tree_header) because this length
- is needed to build the empty BINFO node on the reader side. */
- FOR_EACH_VEC_ELT (tree, BINFO_BASE_BINFOS (expr), i, t)
- lto_output_tree_or_ref (ob, t, ref_p);
- output_record_start (ob, LTO_null);
-
- lto_output_tree_or_ref (ob, BINFO_OFFSET (expr), ref_p);
- lto_output_tree_or_ref (ob, BINFO_VTABLE (expr), ref_p);
- /* BINFO_VIRTUALS is used to drive type based devirtualizatoin. It often links
- together large portions of programs making it harder to partition. Becuase
- devirtualization is interesting before inlining, only, there is no real
- need to ship it into ltrans partition. */
- lto_output_tree_or_ref (ob, flag_wpa ? NULL : BINFO_VIRTUALS (expr), ref_p);
- lto_output_tree_or_ref (ob, BINFO_VPTR_FIELD (expr), ref_p);
-
- output_uleb128 (ob, VEC_length (tree, BINFO_BASE_ACCESSES (expr)));
- FOR_EACH_VEC_ELT (tree, BINFO_BASE_ACCESSES (expr), i, t)
- lto_output_tree_or_ref (ob, t, ref_p);
-
- lto_output_tree_or_ref (ob, BINFO_INHERITANCE_CHAIN (expr), ref_p);
- lto_output_tree_or_ref (ob, BINFO_SUBVTT_INDEX (expr), ref_p);
- lto_output_tree_or_ref (ob, BINFO_VPTR_INDEX (expr), ref_p);
-}
-
-
-/* Write all pointer fields in the TS_CONSTRUCTOR structure of EXPR to
- output block OB. If REF_P is true, write a reference to EXPR's
- pointer fields. */
-
-static void
-lto_output_ts_constructor_tree_pointers (struct output_block *ob, tree expr,
- bool ref_p)
-{
- unsigned i;
- tree index, value;
-
- output_uleb128 (ob, CONSTRUCTOR_NELTS (expr));
- FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (expr), i, index, value)
- {
- lto_output_tree_or_ref (ob, index, ref_p);
- lto_output_tree_or_ref (ob, value, ref_p);
- }
-}
-
-/* Write a TS_TARGET_OPTION tree in EXPR to OB. */
-
-static void
-lto_output_ts_target_option (struct output_block *ob, tree expr)
-{
- struct cl_target_option *t = TREE_TARGET_OPTION (expr);
- struct bitpack_d bp;
- unsigned i, len;
-
- /* The cl_target_option is target specific and generated by the options
- awk script, so we just recreate a byte-by-byte copy here. */
-
- bp = bitpack_create (ob->main_stream);
- len = sizeof (struct cl_target_option);
- for (i = 0; i < len; i++)
- bp_pack_value (&bp, ((unsigned char *)t)[i], 8);
- /* Catch struct size mismatches between reader and writer. */
- bp_pack_value (&bp, 0x12345678, 32);
- lto_output_bitpack (&bp);
-}
-
-/* Write a TS_TRANSLATION_UNIT_DECL tree in EXPR to OB. */
-
-static void
-lto_output_ts_translation_unit_decl_tree_pointers (struct output_block *ob,
- tree expr)
-{
- lto_output_string (ob, ob->main_stream,
- TRANSLATION_UNIT_LANGUAGE (expr), true);
-}
-
-/* Helper for lto_output_tree. Write all pointer fields in EXPR to output
- block OB. If REF_P is true, the leaves of EXPR are emitted as
- references. */
-
-static void
-lto_output_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
-{
- enum tree_code code;
-
- code = TREE_CODE (expr);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
- lto_output_ts_common_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
- lto_output_ts_vector_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
- lto_output_ts_complex_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
- lto_output_ts_decl_minimal_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
- lto_output_ts_decl_common_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
- lto_output_ts_decl_non_common_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
- lto_output_ts_decl_with_vis_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
- lto_output_ts_field_decl_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
- lto_output_ts_function_decl_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
- lto_output_ts_type_common_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
- lto_output_ts_type_non_common_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_LIST))
- lto_output_ts_list_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_VEC))
- lto_output_ts_vec_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_EXP))
- lto_output_ts_exp_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
- lto_output_ts_block_tree_pointers (ob, expr, ref_p);
-
- if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
- lto_output_ts_binfo_tree_pointers (ob, expr, ref_p);
+ ob->cfg_stream = XCNEW (struct lto_output_stream);
- if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
- lto_output_ts_constructor_tree_pointers (ob, expr, ref_p);
+ clear_line_info (ob);
- if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
- lto_output_ts_target_option (ob, expr);
+ ob->string_hash_table = htab_create (37, hash_string_slot_node,
+ eq_string_slot_node, NULL);
+ gcc_obstack_init (&ob->obstack);
- if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
- lto_output_ts_translation_unit_decl_tree_pointers (ob, expr);
+ return ob;
}
-/* Emit header information for tree EXPR to output block OB. The header
- contains everything needed to instantiate an empty skeleton for
- EXPR on the reading side. IX is the index into the streamer cache
- where EXPR is stored. REF_P is as in lto_output_tree. */
+/* Destroy the output block OB. */
-static void
-lto_output_tree_header (struct output_block *ob, tree expr)
+void
+destroy_output_block (struct output_block *ob)
{
- enum LTO_tags tag;
- enum tree_code code;
+ enum lto_section_type section_type = ob->section_type;
- /* We should not see any tree nodes not handled by the streamer. */
- code = TREE_CODE (expr);
- if (!streamer_hooks.is_streamable (expr))
- internal_error ("tree code %qs is not supported in %s streams",
- tree_code_name[code], streamer_hooks.name);
-
- /* The header of a tree node consists of its tag, the size of
- the node, and any other information needed to instantiate
- EXPR on the reading side (such as the number of slots in
- variable sized nodes). */
- tag = lto_tree_code_to_tag (code);
- output_record_start (ob, tag);
+ htab_delete (ob->string_hash_table);
- /* The following will cause bootstrap miscomparisons. Enable with care. */
-#ifdef LTO_STREAMER_DEBUG
- /* This is used mainly for debugging purposes. When the reader
- and the writer do not agree on a streamed node, the pointer
- value for EXPR can be used to track down the differences in
- the debugger. */
- gcc_assert ((HOST_WIDEST_INT) (intptr_t) expr == (intptr_t) expr);
- output_sleb128 (ob, (HOST_WIDEST_INT) (intptr_t) expr);
-#endif
+ free (ob->main_stream);
+ free (ob->string_stream);
+ if (section_type == LTO_section_function_body)
+ free (ob->cfg_stream);
+
+ lto_streamer_cache_delete (ob->writer_cache);
+ obstack_free (&ob->obstack, NULL);
- /* The text in strings and identifiers are completely emitted in
- the header. */
- if (CODE_CONTAINS_STRUCT (code, TS_STRING))
- output_string_cst (ob, ob->main_stream, expr);
- else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
- output_identifier (ob, ob->main_stream, expr);
- else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
- output_sleb128 (ob, TREE_VEC_LENGTH (expr));
- else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
- output_uleb128 (ob, BINFO_N_BASE_BINFOS (expr));
-
- /* Allow the streamer to write any streamer-specific information
- needed to instantiate the node when reading. */
- if (streamer_hooks.output_tree_header)
- streamer_hooks.output_tree_header (ob, expr);
+ free (ob);
}
-/* Write the code and class of builtin EXPR to output block OB. IX is
- the index into the streamer cache where EXPR is stored.*/
+/* Look up NODE in the type table and write the index for it to OB. */
static void
-lto_output_builtin_tree (struct output_block *ob, tree expr)
+output_type_ref (struct output_block *ob, tree node)
{
- gcc_assert (lto_stream_as_builtin_p (expr));
+ output_record_start (ob, LTO_type_ref);
+ lto_output_type_ref_index (ob->decl_state, ob->main_stream, node);
+}
- if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD
- && !targetm.builtin_decl)
- sorry ("gimple bytecode streams do not support machine specific builtin "
- "functions on this target");
- output_record_start (ob, LTO_builtin_decl);
- lto_output_enum (ob->main_stream, built_in_class, BUILT_IN_LAST,
- DECL_BUILT_IN_CLASS (expr));
- output_uleb128 (ob, DECL_FUNCTION_CODE (expr));
+/* Return true if tree node T is written to various tables. For these
+ nodes, we sometimes want to write their phyiscal representation
+ (via lto_output_tree), and sometimes we need to emit an index
+ reference into a table (via lto_output_tree_ref). */
- if (DECL_ASSEMBLER_NAME_SET_P (expr))
- {
- /* When the assembler name of a builtin gets a user name,
- the new name is always prefixed with '*' by
- set_builtin_user_assembler_name. So, to prevent the
- reader side from adding a second '*', we omit it here. */
- const char *str = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (expr));
- if (strlen (str) > 1 && str[0] == '*')
- lto_output_string (ob, ob->main_stream, &str[1], true);
- else
- lto_output_string (ob, ob->main_stream, NULL, true);
- }
+static bool
+tree_is_indexable (tree t)
+{
+ if (TREE_CODE (t) == PARM_DECL)
+ return false;
+ else if (TREE_CODE (t) == VAR_DECL && decl_function_context (t)
+ && !TREE_STATIC (t))
+ return false;
else
- lto_output_string (ob, ob->main_stream, NULL, true);
+ return (TYPE_P (t) || DECL_P (t) || TREE_CODE (t) == SSA_NAME);
}
-/* Write a physical representation of tree node EXPR to output block
- OB. If REF_P is true, the leaves of EXPR are emitted as references
- via lto_output_tree_ref. IX is the index into the streamer cache
- where EXPR is stored. */
+/* Output info about new location into bitpack BP.
+ After outputting bitpack, lto_output_location_data has
+ to be done to output actual data. */
-static void
-lto_write_tree (struct output_block *ob, tree expr, bool ref_p)
+static inline void
+lto_output_location_bitpack (struct bitpack_d *bp,
+ struct output_block *ob,
+ location_t loc)
{
- struct bitpack_d bp;
+ expanded_location xloc;
- /* Write the header, containing everything needed to materialize
- EXPR on the reading side. */
- lto_output_tree_header (ob, expr);
+ bp_pack_value (bp, loc == UNKNOWN_LOCATION, 1);
+ if (loc == UNKNOWN_LOCATION)
+ return;
- /* Pack all the non-pointer fields in EXPR into a bitpack and write
- the resulting bitpack. */
- bp = bitpack_create (ob->main_stream);
- pack_value_fields (&bp, expr);
- lto_output_bitpack (&bp);
+ xloc = expand_location (loc);
- /* Write all the pointer fields in EXPR. */
- lto_output_tree_pointers (ob, expr, ref_p);
+ bp_pack_value (bp, ob->current_file != xloc.file, 1);
+ if (ob->current_file != xloc.file)
+ bp_pack_var_len_unsigned (bp, lto_string_index (ob,
+ xloc.file,
+ strlen (xloc.file) + 1,
+ true));
+ ob->current_file = xloc.file;
- /* Call back into the streaming module to see if it needs to write
- anything that was not written by the common streamer. */
- if (streamer_hooks.write_tree)
- streamer_hooks.write_tree (ob, expr, ref_p);
+ bp_pack_value (bp, ob->current_line != xloc.line, 1);
+ if (ob->current_line != xloc.line)
+ bp_pack_var_len_unsigned (bp, xloc.line);
+ ob->current_line = xloc.line;
- /* Mark the end of EXPR. */
- output_zero (ob);
+ bp_pack_value (bp, ob->current_col != xloc.column, 1);
+ if (ob->current_col != xloc.column)
+ bp_pack_var_len_unsigned (bp, xloc.column);
+ ob->current_col = xloc.column;
}
-/* GIMPLE hook for writing GIMPLE-specific parts of trees. OB, EXPR
- and REF_P are as in lto_write_tree. */
+/* Emit location LOC to output block OB.
+ When bitpack is handy, it is more space effecient to call
+ lto_output_location_bitpack with existing bitpack. */
void
-lto_streamer_write_tree (struct output_block *ob, tree expr, bool ref_p)
-{
- if (DECL_P (expr)
- && TREE_CODE (expr) != FUNCTION_DECL
- && TREE_CODE (expr) != TRANSLATION_UNIT_DECL)
- {
- /* Handle DECL_INITIAL for symbols. */
- tree initial = DECL_INITIAL (expr);
- if (TREE_CODE (expr) == VAR_DECL
- && (TREE_STATIC (expr) || DECL_EXTERNAL (expr))
- && initial)
- {
- lto_varpool_encoder_t varpool_encoder;
- struct varpool_node *vnode;
-
- varpool_encoder = ob->decl_state->varpool_node_encoder;
- vnode = varpool_get_node (expr);
- if (!vnode)
- initial = error_mark_node;
- else if (!lto_varpool_encoder_encode_initializer_p (varpool_encoder,
- vnode))
- initial = NULL;
- }
-
- lto_output_tree_or_ref (ob, initial, ref_p);
- }
-}
-
-
-/* Emit the integer constant CST to output block OB. If REF_P is true,
- CST's type will be emitted as a reference. */
-
-static void
-lto_output_integer_cst (struct output_block *ob, tree cst, bool ref_p)
+lto_output_location (struct output_block *ob, location_t loc)
{
- output_record_start (ob, lto_tree_code_to_tag (INTEGER_CST));
- lto_output_tree_or_ref (ob, TREE_TYPE (cst), ref_p);
- lto_output_1_stream (ob->main_stream, TREE_OVERFLOW_P (cst));
- output_uleb128 (ob, TREE_INT_CST_LOW (cst));
- output_uleb128 (ob, TREE_INT_CST_HIGH (cst));
+ struct bitpack_d bp = bitpack_create (ob->main_stream);
+ lto_output_location_bitpack (&bp, ob, loc);
+ lto_output_bitpack (&bp);
}
-/* Emit the physical representation of tree node EXPR to output block
- OB. If REF_P is true, the leaves of EXPR are emitted as references
- via lto_output_tree_ref. */
+/* If EXPR is an indexable tree node, output a reference to it to
+ output block OB. Otherwise, output the physical representation of
+ EXPR to OB. */
void
-lto_output_tree (struct output_block *ob, tree expr, bool ref_p)
+lto_output_tree_ref (struct output_block *ob, tree expr)
{
- unsigned ix;
- bool existed_p;
+ enum tree_code code;
if (expr == NULL_TREE)
{
return;
}
- /* INTEGER_CST nodes are special because they need their original type
- to be materialized by the reader (to implement TYPE_CACHED_VALUES). */
- if (TREE_CODE (expr) == INTEGER_CST)
+ if (!tree_is_indexable (expr))
{
- lto_output_integer_cst (ob, expr, ref_p);
+ /* Even though we are emitting the physical representation of
+ EXPR, its leaves must be emitted as references. */
+ lto_output_tree (ob, expr, true);
return;
}
- existed_p = lto_streamer_cache_insert (ob->writer_cache, expr, &ix);
- if (existed_p)
- {
- /* If a node has already been streamed out, make sure that
- we don't write it more than once. Otherwise, the reader
- will instantiate two different nodes for the same object. */
- output_record_start (ob, LTO_tree_pickle_reference);
- output_uleb128 (ob, ix);
- lto_output_enum (ob->main_stream, LTO_tags, LTO_NUM_TAGS,
- lto_tree_code_to_tag (TREE_CODE (expr)));
- }
- else if (lto_stream_as_builtin_p (expr))
+ if (TYPE_P (expr))
{
- /* MD and NORMAL builtins do not need to be written out
- completely as they are always instantiated by the
- compiler on startup. The only builtins that need to
- be written out are BUILT_IN_FRONTEND. For all other
- builtins, we simply write the class and code. */
- lto_output_builtin_tree (ob, expr);
+ output_type_ref (ob, expr);
+ return;
}
- else
+
+ code = TREE_CODE (expr);
+ switch (code)
{
- /* This is the first time we see EXPR, write its fields
- to OB. */
- lto_write_tree (ob, expr, ref_p);
+ case SSA_NAME:
+ output_record_start (ob, LTO_ssa_name_ref);
+ output_uleb128 (ob, SSA_NAME_VERSION (expr));
+ break;
+
+ case FIELD_DECL:
+ output_record_start (ob, LTO_field_decl_ref);
+ lto_output_field_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case FUNCTION_DECL:
+ output_record_start (ob, LTO_function_decl_ref);
+ lto_output_fn_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case VAR_DECL:
+ case DEBUG_EXPR_DECL:
+ gcc_assert (decl_function_context (expr) == NULL
+ || TREE_STATIC (expr));
+ output_record_start (ob, LTO_global_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case CONST_DECL:
+ output_record_start (ob, LTO_const_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case IMPORTED_DECL:
+ gcc_assert (decl_function_context (expr) == NULL);
+ output_record_start (ob, LTO_imported_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case TYPE_DECL:
+ output_record_start (ob, LTO_type_decl_ref);
+ lto_output_type_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case NAMESPACE_DECL:
+ output_record_start (ob, LTO_namespace_decl_ref);
+ lto_output_namespace_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case LABEL_DECL:
+ output_record_start (ob, LTO_label_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case RESULT_DECL:
+ output_record_start (ob, LTO_result_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ case TRANSLATION_UNIT_DECL:
+ output_record_start (ob, LTO_translation_unit_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ break;
+
+ default:
+ {
+ /* See if the streamer allows this node to be indexable
+ like other global declarations. */
+ if (streamer_hooks.indexable_with_decls_p
+ && streamer_hooks.indexable_with_decls_p (expr))
+ {
+ output_record_start (ob, LTO_global_decl_ref);
+ lto_output_var_decl_index (ob->decl_state, ob->main_stream, expr);
+ }
+ else
+ {
+ /* No other node is indexable, so it should have been
+ handled by lto_output_tree. */
+ gcc_unreachable ();
+ }
+ }
}
}
}
-/* Output PHI function PHI to the main stream in OB. */
-
-static void
-output_phi (struct output_block *ob, gimple phi)
-{
- unsigned i, len = gimple_phi_num_args (phi);
-
- output_record_start (ob, lto_gimple_code_to_tag (GIMPLE_PHI));
- output_uleb128 (ob, SSA_NAME_VERSION (PHI_RESULT (phi)));
-
- for (i = 0; i < len; i++)
- {
- lto_output_tree_ref (ob, gimple_phi_arg_def (phi, i));
- output_uleb128 (ob, gimple_phi_arg_edge (phi, i)->src->index);
- lto_output_location (ob, gimple_phi_arg_location (phi, i));
- }
-}
-
-
-/* Emit statement STMT on the main stream of output block OB. */
-
-static void
-output_gimple_stmt (struct output_block *ob, gimple stmt)
-{
- unsigned i;
- enum gimple_code code;
- enum LTO_tags tag;
- struct bitpack_d bp;
-
- /* Emit identifying tag. */
- code = gimple_code (stmt);
- tag = lto_gimple_code_to_tag (code);
- output_record_start (ob, tag);
-
- /* Emit the tuple header. */
- bp = bitpack_create (ob->main_stream);
- bp_pack_var_len_unsigned (&bp, gimple_num_ops (stmt));
- bp_pack_value (&bp, gimple_no_warning_p (stmt), 1);
- if (is_gimple_assign (stmt))
- bp_pack_value (&bp, gimple_assign_nontemporal_move_p (stmt), 1);
- bp_pack_value (&bp, gimple_has_volatile_ops (stmt), 1);
- bp_pack_var_len_unsigned (&bp, stmt->gsbase.subcode);
- lto_output_bitpack (&bp);
-
- /* Emit location information for the statement. */
- lto_output_location (ob, gimple_location (stmt));
-
- /* Emit the lexical block holding STMT. */
- lto_output_tree (ob, gimple_block (stmt), true);
-
- /* Emit the operands. */
- switch (gimple_code (stmt))
- {
- case GIMPLE_RESX:
- output_sleb128 (ob, gimple_resx_region (stmt));
- break;
-
- case GIMPLE_EH_MUST_NOT_THROW:
- lto_output_tree_ref (ob, gimple_eh_must_not_throw_fndecl (stmt));
- break;
-
- case GIMPLE_EH_DISPATCH:
- output_sleb128 (ob, gimple_eh_dispatch_region (stmt));
- break;
-
- case GIMPLE_ASM:
- lto_output_uleb128_stream (ob->main_stream, gimple_asm_ninputs (stmt));
- lto_output_uleb128_stream (ob->main_stream, gimple_asm_noutputs (stmt));
- lto_output_uleb128_stream (ob->main_stream, gimple_asm_nclobbers (stmt));
- lto_output_uleb128_stream (ob->main_stream, gimple_asm_nlabels (stmt));
- lto_output_string (ob, ob->main_stream, gimple_asm_string (stmt), true);
- /* Fallthru */
-
- case GIMPLE_ASSIGN:
- case GIMPLE_CALL:
- case GIMPLE_RETURN:
- case GIMPLE_SWITCH:
- case GIMPLE_LABEL:
- case GIMPLE_COND:
- case GIMPLE_GOTO:
- case GIMPLE_DEBUG:
- for (i = 0; i < gimple_num_ops (stmt); i++)
- {
- tree op = gimple_op (stmt, i);
- /* Wrap all uses of non-automatic variables inside MEM_REFs
- so that we do not have to deal with type mismatches on
- merged symbols during IL read in. The first operand
- of GIMPLE_DEBUG must be a decl, not MEM_REF, though. */
- if (op && (i || !is_gimple_debug (stmt)))
- {
- tree *basep = &op;
- while (handled_component_p (*basep))
- basep = &TREE_OPERAND (*basep, 0);
- if (TREE_CODE (*basep) == VAR_DECL
- && !auto_var_in_fn_p (*basep, current_function_decl)
- && !DECL_REGISTER (*basep))
- {
- bool volatilep = TREE_THIS_VOLATILE (*basep);
- *basep = build2 (MEM_REF, TREE_TYPE (*basep),
- build_fold_addr_expr (*basep),
- build_int_cst (build_pointer_type
- (TREE_TYPE (*basep)), 0));
- TREE_THIS_VOLATILE (*basep) = volatilep;
- }
- }
- lto_output_tree_ref (ob, op);
- }
- if (is_gimple_call (stmt))
- {
- if (gimple_call_internal_p (stmt))
- lto_output_enum (ob->main_stream, internal_fn,
- IFN_LAST, gimple_call_internal_fn (stmt));
- else
- lto_output_tree_ref (ob, gimple_call_fntype (stmt));
- }
- break;
-
- case GIMPLE_NOP:
- case GIMPLE_PREDICT:
- break;
-
- default:
- gcc_unreachable ();
- }
-}
-
-
-/* Output a basic block BB to the main stream in OB for this FN. */
-
-static void
-output_bb (struct output_block *ob, basic_block bb, struct function *fn)
-{
- gimple_stmt_iterator bsi = gsi_start_bb (bb);
-
- output_record_start (ob,
- (!gsi_end_p (bsi)) || phi_nodes (bb)
- ? LTO_bb1
- : LTO_bb0);
-
- output_uleb128 (ob, bb->index);
- output_sleb128 (ob, bb->count);
- output_sleb128 (ob, bb->loop_depth);
- output_sleb128 (ob, bb->frequency);
- output_sleb128 (ob, bb->flags);
-
- if (!gsi_end_p (bsi) || phi_nodes (bb))
- {
- /* Output the statements. The list of statements is terminated
- with a zero. */
- for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi))
- {
- int region;
- gimple stmt = gsi_stmt (bsi);
-
- output_gimple_stmt (ob, stmt);
-
- /* Emit the EH region holding STMT. */
- region = lookup_stmt_eh_lp_fn (fn, stmt);
- if (region != 0)
- {
- output_record_start (ob, LTO_eh_region);
- output_sleb128 (ob, region);
- }
- else
- output_record_start (ob, LTO_null);
- }
-
- output_record_start (ob, LTO_null);
-
- for (bsi = gsi_start_phis (bb); !gsi_end_p (bsi); gsi_next (&bsi))
- {
- gimple phi = gsi_stmt (bsi);
-
- /* Only emit PHIs for gimple registers. PHI nodes for .MEM
- will be filled in on reading when the SSA form is
- updated. */
- if (is_gimple_reg (gimple_phi_result (phi)))
- output_phi (ob, phi);
- }
-
- output_record_start (ob, LTO_null);
- }
-}
-
/* Create the header in the file using OB. If the section type is for
a function, set FN to the decl for that function. */
#include "diagnostic-core.h"
#include "bitmap.h"
#include "vec.h"
+#include "tree-streamer.h"
#include "lto-streamer.h"
+#include "streamer-hooks.h"
/* Statistics gathered during LTO, WPA and LTRANS. */
struct lto_stats_d lto_stats;
-/* Streamer hooks. */
-struct streamer_hooks streamer_hooks;
-
/* LTO uses bitmaps with different life-times. So use a seperate
obstack for all LTO bitmaps. */
static bitmap_obstack lto_obstack;
}
-/* Check that all the TS_* structures handled by the lto_output_* and
- lto_input_* routines are exactly ALL the structures defined in
- treestruct.def. */
-
-static void
-check_handled_ts_structures (void)
-{
- bool handled_p[LAST_TS_ENUM];
- unsigned i;
-
- memset (&handled_p, 0, sizeof (handled_p));
-
- /* These are the TS_* structures that are either handled or
- explicitly ignored by the streamer routines. */
- handled_p[TS_BASE] = true;
- handled_p[TS_TYPED] = true;
- handled_p[TS_COMMON] = true;
- handled_p[TS_INT_CST] = true;
- handled_p[TS_REAL_CST] = true;
- handled_p[TS_FIXED_CST] = true;
- handled_p[TS_VECTOR] = true;
- handled_p[TS_STRING] = true;
- handled_p[TS_COMPLEX] = true;
- handled_p[TS_IDENTIFIER] = true;
- handled_p[TS_DECL_MINIMAL] = true;
- handled_p[TS_DECL_COMMON] = true;
- handled_p[TS_DECL_WRTL] = true;
- handled_p[TS_DECL_NON_COMMON] = true;
- handled_p[TS_DECL_WITH_VIS] = true;
- handled_p[TS_FIELD_DECL] = true;
- handled_p[TS_VAR_DECL] = true;
- handled_p[TS_PARM_DECL] = true;
- handled_p[TS_LABEL_DECL] = true;
- handled_p[TS_RESULT_DECL] = true;
- handled_p[TS_CONST_DECL] = true;
- handled_p[TS_TYPE_DECL] = true;
- handled_p[TS_FUNCTION_DECL] = true;
- handled_p[TS_TYPE_COMMON] = true;
- handled_p[TS_TYPE_WITH_LANG_SPECIFIC] = true;
- handled_p[TS_TYPE_NON_COMMON] = true;
- handled_p[TS_LIST] = true;
- handled_p[TS_VEC] = true;
- handled_p[TS_EXP] = true;
- handled_p[TS_SSA_NAME] = true;
- handled_p[TS_BLOCK] = true;
- handled_p[TS_BINFO] = true;
- handled_p[TS_STATEMENT_LIST] = true;
- handled_p[TS_CONSTRUCTOR] = true;
- handled_p[TS_OMP_CLAUSE] = true;
- handled_p[TS_OPTIMIZATION] = true;
- handled_p[TS_TARGET_OPTION] = true;
- handled_p[TS_TRANSLATION_UNIT_DECL] = true;
-
- /* Anything not marked above will trigger the following assertion.
- If this assertion triggers, it means that there is a new TS_*
- structure that should be handled by the streamer. */
- for (i = 0; i < LAST_TS_ENUM; i++)
- gcc_assert (handled_p[i]);
-}
-
-
-/* Helper for lto_streamer_cache_insert_1. Add T to CACHE->NODES at
- slot IX. */
-
-static void
-lto_streamer_cache_add_to_node_array (struct lto_streamer_cache_d *cache,
- unsigned ix, tree t)
-{
- /* Make sure we're either replacing an old element or
- appending consecutively. */
- gcc_assert (ix <= VEC_length (tree, cache->nodes));
-
- if (ix == VEC_length (tree, cache->nodes))
- VEC_safe_push (tree, heap, cache->nodes, t);
- else
- VEC_replace (tree, cache->nodes, ix, t);
-}
-
-
-/* Helper for lto_streamer_cache_insert and lto_streamer_cache_insert_at.
- CACHE, T, and IX_P are as in lto_streamer_cache_insert.
-
- If INSERT_AT_NEXT_SLOT_P is true, T is inserted at the next available
- slot in the cache. Otherwise, T is inserted at the position indicated
- in *IX_P.
-
- If T already existed in CACHE, return true. Otherwise,
- return false. */
-
-static bool
-lto_streamer_cache_insert_1 (struct lto_streamer_cache_d *cache,
- tree t, unsigned *ix_p,
- bool insert_at_next_slot_p)
-{
- void **slot;
- unsigned ix;
- bool existed_p;
-
- gcc_assert (t);
-
- slot = pointer_map_insert (cache->node_map, t);
- if (!*slot)
- {
- /* Determine the next slot to use in the cache. */
- if (insert_at_next_slot_p)
- ix = VEC_length (tree, cache->nodes);
- else
- ix = *ix_p;
- *slot = (void *)(size_t) (ix + 1);
-
- lto_streamer_cache_add_to_node_array (cache, ix, t);
-
- /* Indicate that the item was not present in the cache. */
- existed_p = false;
- }
- else
- {
- ix = (size_t) *slot - 1;
-
- if (!insert_at_next_slot_p && ix != *ix_p)
- {
- /* If the caller wants to insert T at a specific slot
- location, and ENTRY->TO does not match *IX_P, add T to
- the requested location slot. */
- ix = *ix_p;
- lto_streamer_cache_add_to_node_array (cache, ix, t);
- }
-
- /* Indicate that T was already in the cache. */
- existed_p = true;
- }
-
- if (ix_p)
- *ix_p = ix;
-
- return existed_p;
-}
-
-
-/* Insert tree node T in CACHE. If T already existed in the cache
- return true. Otherwise, return false.
-
- If IX_P is non-null, update it with the index into the cache where
- T has been stored. */
-
-bool
-lto_streamer_cache_insert (struct lto_streamer_cache_d *cache, tree t,
- unsigned *ix_p)
-{
- return lto_streamer_cache_insert_1 (cache, t, ix_p, true);
-}
-
-
-/* Insert tree node T in CACHE at slot IX. If T already
- existed in the cache return true. Otherwise, return false. */
-
-bool
-lto_streamer_cache_insert_at (struct lto_streamer_cache_d *cache,
- tree t, unsigned ix)
-{
- return lto_streamer_cache_insert_1 (cache, t, &ix, false);
-}
-
-
-/* Appends tree node T to CACHE, even if T already existed in it. */
-
-void
-lto_streamer_cache_append (struct lto_streamer_cache_d *cache, tree t)
-{
- unsigned ix = VEC_length (tree, cache->nodes);
- lto_streamer_cache_insert_1 (cache, t, &ix, false);
-}
-
-/* Return true if tree node T exists in CACHE, otherwise false. If IX_P is
- not NULL, write to *IX_P the index into the cache where T is stored
- ((unsigned)-1 if T is not found). */
-
-bool
-lto_streamer_cache_lookup (struct lto_streamer_cache_d *cache, tree t,
- unsigned *ix_p)
-{
- void **slot;
- bool retval;
- unsigned ix;
-
- gcc_assert (t);
-
- slot = pointer_map_contains (cache->node_map, t);
- if (slot == NULL)
- {
- retval = false;
- ix = -1;
- }
- else
- {
- retval = true;
- ix = (size_t) *slot - 1;
- }
-
- if (ix_p)
- *ix_p = ix;
-
- return retval;
-}
-
-
-/* Return the tree node at slot IX in CACHE. */
-
-tree
-lto_streamer_cache_get (struct lto_streamer_cache_d *cache, unsigned ix)
-{
- gcc_assert (cache);
-
- /* Make sure we're not requesting something we don't have. */
- gcc_assert (ix < VEC_length (tree, cache->nodes));
-
- return VEC_index (tree, cache->nodes, ix);
-}
-
-
/* Record NODE in CACHE. */
static void
lto_record_common_node (cache, global_trees[i]);
}
-/* Create a cache of pickled nodes. */
-
-struct lto_streamer_cache_d *
-lto_streamer_cache_create (void)
-{
- struct lto_streamer_cache_d *cache;
-
- cache = XCNEW (struct lto_streamer_cache_d);
-
- cache->node_map = pointer_map_create ();
-
- /* Load all the well-known tree nodes that are always created by
- the compiler on startup. This prevents writing them out
- unnecessarily. */
- streamer_hooks.preload_common_nodes (cache);
-
- return cache;
-}
-
-
-/* Delete the streamer cache C. */
-
-void
-lto_streamer_cache_delete (struct lto_streamer_cache_d *c)
-{
- if (c == NULL)
- return;
-
- pointer_map_destroy (c->node_map);
- VEC_free (tree, heap, c->nodes);
- free (c);
-}
-
#ifdef LTO_STREAMER_DEBUG
static htab_t tree_htab;
streamer_hooks.write_tree = lto_streamer_write_tree;
streamer_hooks.read_tree = lto_streamer_read_tree;
}
-
-
-/* Initialize the current set of streamer hooks. */
-
-void
-streamer_hooks_init (void)
-{
- memset (&streamer_hooks, 0, sizeof (streamer_hooks));
-}
#include "vecprim.h"
#include "alloc-pool.h"
#include "gcov-io.h"
-
-/* Forward declarations to avoid including unnecessary headers. */
-struct output_block;
-struct lto_input_block;
-struct data_in;
-struct bitpack_d;
+#include "diagnostic.h"
/* Define when debugging the LTO streamer. This causes the writer
to output the numeric value for the memory address of the tree node
typedef unsigned char lto_decl_flags_t;
-/* Data structures used to pack values and bitflags into a vector of
- words. Used to stream values of a fixed number of bits in a space
- efficient way. */
-static unsigned const BITS_PER_BITPACK_WORD = HOST_BITS_PER_WIDE_INT;
-
-typedef unsigned HOST_WIDE_INT bitpack_word_t;
-DEF_VEC_I(bitpack_word_t);
-DEF_VEC_ALLOC_I(bitpack_word_t, heap);
-
-struct bitpack_d
-{
- /* The position of the first unused or unconsumed bit in the word. */
- unsigned pos;
-
- /* The current word we are (un)packing. */
- bitpack_word_t word;
-
- /* The lto_output_stream or the lto_input_block we are streaming to/from. */
- void *stream;
-};
-
/* Tags representing the various IL objects written to the bytecode file
(GIMPLE statements, basic blocks, EH regions, tree nodes, etc).
const char *,
size_t);
-/* Cache of pickled nodes. Used to avoid writing the same node more
- than once. The first time a tree node is streamed out, it is
- entered in this cache. Subsequent references to the same node are
- resolved by looking it up in this cache.
-
- This is used in two ways:
-
- - On the writing side, the first time T is added to STREAMER_CACHE,
- a new reference index is created for T and T is emitted on the
- stream. If T needs to be emitted again to the stream, instead of
- pickling it again, the reference index is emitted.
-
- - On the reading side, the first time T is read from the stream, it
- is reconstructed in memory and a new reference index created for
- T. The reconstructed T is inserted in some array so that when
- the reference index for T is found in the input stream, it can be
- used to look up into the array to get the reconstructed T. */
-struct lto_streamer_cache_d
-{
- /* The mapping between tree nodes and slots into the nodes array. */
- struct pointer_map_t *node_map;
-
- /* The nodes pickled so far. */
- VEC(tree,heap) *nodes;
-};
-
-
/* Structure used as buffer for reading an LTO file. */
struct lto_input_block
{
};
-/* Streamer hooks. These functions do additional processing as
- needed by the module. There are two types of callbacks, those that
- replace the default behavior and those that supplement it.
-
- Hooks marked [REQ] are required to be set. Those marked [OPT] may
- be NULL, if the streamer does not need to implement them. */
-struct streamer_hooks {
- /* [REQ] A string identifying this streamer. */
- const char *name;
-
- /* [REQ] Called by lto_streamer_cache_create to instantiate a cache of
- well-known nodes. These are tree nodes that are always
- instantiated by the compiler on startup. Additionally, these
- nodes need to be shared. This function should call
- lto_streamer_cache_append on every tree node that it wishes to
- preload in the streamer cache. This way, the writer will only
- write out a reference to the tree and the reader will instantiate
- the tree out of this pre-populated cache. */
- void (*preload_common_nodes) (struct lto_streamer_cache_d *);
-
- /* [REQ] Return true if the given tree is supported by this streamer. */
- bool (*is_streamable) (tree);
-
- /* [OPT] Called by lto_write_tree after writing all the common parts of
- a tree. If defined, the callback is in charge of writing all
- the fields that lto_write_tree did not write out. Arguments
- are as in lto_write_tree.
-
- The following tree fields are not handled by common code:
-
- DECL_ABSTRACT_ORIGIN
- DECL_INITIAL
- DECL_SAVED_TREE
-
- Callbacks may choose to ignore or handle them. If handled,
- the reader should read them in the exact same sequence written
- by the writer. */
- void (*write_tree) (struct output_block *, tree, bool);
-
- /* [OPT] Called by lto_read_tree after reading all the common parts of
- a tree. If defined, the callback is in charge of reading all
- the fields that lto_read_tree did not read in. Arguments
- are as in lto_read_tree. */
- void (*read_tree) (struct lto_input_block *, struct data_in *, tree);
-
- /* [OPT] Called by lto_output_tree_ref to determine if the given tree node
- should be emitted as a reference to the table of declarations
- (the same table that holds global declarations). */
- bool (*indexable_with_decls_p) (tree);
-
- /* [OPT] Called by pack_value_fields to store any non-pointer fields
- in the tree structure. The arguments are as in pack_value_fields. */
- void (*pack_value_fields) (struct bitpack_d *, tree);
-
- /* [OPT] Called by unpack_value_fields to retrieve any non-pointer fields
- in the tree structure. The arguments are as in unpack_value_fields. */
- void (*unpack_value_fields) (struct bitpack_d *, tree);
-
- /* [OPT] Called by lto_materialize_tree for tree nodes that it does not
- know how to allocate memory for. If defined, this hook should
- return a new tree node of the given code. The data_in and
- input_block arguments are passed in case the hook needs to
- read more data from the stream to allocate the node.
- If this hook returns NULL, then lto_materialize_tree will attempt
- to allocate the tree by calling make_node directly. */
- tree (*alloc_tree) (enum tree_code, struct lto_input_block *,
- struct data_in *);
-
- /* [OPT] Called by lto_output_tree_header to write any streamer-specific
- information needed to allocate the tree. This hook may assume
- that the basic header data (tree code, etc) has already been
- written. It should only write any extra data needed to allocate
- the node (e.g., in the case of CALL_EXPR, this hook would write
- the number of arguments to the CALL_EXPR). */
- void (*output_tree_header) (struct output_block *, tree);
-};
-
-/* Streamer hooks. */
-extern struct streamer_hooks streamer_hooks;
-
/* In lto-section-in.c */
extern struct lto_input_block * lto_create_simple_input_block (
struct lto_file_decl_data *,
extern void lto_value_range_error (const char *,
HOST_WIDE_INT, HOST_WIDE_INT,
HOST_WIDE_INT) ATTRIBUTE_NORETURN;
-extern void bp_pack_var_len_unsigned (struct bitpack_d *, unsigned HOST_WIDE_INT);
-extern void bp_pack_var_len_int (struct bitpack_d *, HOST_WIDE_INT);
-extern unsigned HOST_WIDE_INT bp_unpack_var_len_unsigned (struct bitpack_d *);
-extern HOST_WIDE_INT bp_unpack_var_len_int (struct bitpack_d *);
/* In lto-section-out.c */
extern hashval_t lto_hash_decl_slot_node (const void *);
extern void lto_bitmap_free (bitmap);
extern char *lto_get_section_name (int, const char *, struct lto_file_decl_data *);
extern void print_lto_report (void);
-extern bool lto_streamer_cache_insert (struct lto_streamer_cache_d *, tree,
- unsigned *);
-extern bool lto_streamer_cache_insert_at (struct lto_streamer_cache_d *, tree,
- unsigned);
-extern void lto_streamer_cache_append (struct lto_streamer_cache_d *, tree);
-extern bool lto_streamer_cache_lookup (struct lto_streamer_cache_d *, tree,
- unsigned *);
-extern tree lto_streamer_cache_get (struct lto_streamer_cache_d *, unsigned);
-extern struct lto_streamer_cache_d *lto_streamer_cache_create (void);
-extern void lto_streamer_cache_delete (struct lto_streamer_cache_d *);
extern void lto_streamer_init (void);
extern bool gate_lto_out (void);
#ifdef LTO_STREAMER_DEBUG
#endif
extern void lto_check_version (int, int);
extern void lto_streamer_hooks_init (void);
-extern void lto_streamer_write_tree (struct output_block *, tree, bool);
-extern void lto_streamer_read_tree (struct lto_input_block *,
- struct data_in *, tree);
-extern void streamer_hooks_init (void);
/* In lto-streamer-in.c */
extern void lto_input_cgraph (struct lto_file_decl_data *, const char *);
extern void lto_reader_init (void);
-extern tree lto_input_tree (struct lto_input_block *, struct data_in *);
extern void lto_input_function_body (struct lto_file_decl_data *, tree,
const char *);
extern void lto_input_constructors_and_inits (struct lto_file_decl_data *,
const char *, unsigned,
VEC(ld_plugin_symbol_resolution_t,heap) *);
extern void lto_data_in_delete (struct data_in *);
-extern const char *lto_input_string (struct data_in *,
- struct lto_input_block *);
extern void lto_input_data_block (struct lto_input_block *, void *, size_t);
+location_t lto_input_location (struct lto_input_block *, struct data_in *);
+tree lto_input_tree_ref (struct lto_input_block *, struct data_in *,
+ struct function *, enum LTO_tags);
+void lto_tag_check_set (enum LTO_tags, int, ...);
+void lto_init_eh (void);
/* In lto-streamer-out.c */
void lto_output_decl_state_refs (struct output_block *,
struct lto_output_stream *,
struct lto_out_decl_state *);
+void lto_output_tree_ref (struct output_block *, tree);
+void lto_output_location (struct output_block *, location_t);
/* In lto-cgraph.c */
return (enum tree_code) ((unsigned) tag - 1);
}
+/* Check that tag ACTUAL == EXPECTED. */
+static inline void
+lto_tag_check (enum LTO_tags actual, enum LTO_tags expected)
+{
+ if (actual != expected)
+ internal_error ("bytecode stream: expected tag %s instead of %s",
+ lto_tag_name (expected), lto_tag_name (actual));
+}
+
+/* Check that tag ACTUAL is in the range [TAG1, TAG2]. */
+static inline void
+lto_tag_check_range (enum LTO_tags actual, enum LTO_tags tag1,
+ enum LTO_tags tag2)
+{
+ if (actual < tag1 || actual > tag2)
+ internal_error ("bytecode stream: tag %s is not in the expected range "
+ "[%s, %s]",
+ lto_tag_name (actual),
+ lto_tag_name (tag1),
+ lto_tag_name (tag2));
+}
+
/* Initialize an lto_out_decl_buffer ENCODER. */
static inline void
lto_init_tree_ref_encoder (struct lto_tree_ref_encoder *encoder,
DEFINE_DECL_STREAM_FUNCS (NAMESPACE_DECL, namespace_decl)
DEFINE_DECL_STREAM_FUNCS (LABEL_DECL, label_decl)
-/* Returns a new bit-packing context for bit-packing into S. */
-static inline struct bitpack_d
-bitpack_create (struct lto_output_stream *s)
-{
- struct bitpack_d bp;
- bp.pos = 0;
- bp.word = 0;
- bp.stream = (void *)s;
- return bp;
-}
-
-/* Pack the NBITS bit sized value VAL into the bit-packing context BP. */
-static inline void
-bp_pack_value (struct bitpack_d *bp, bitpack_word_t val, unsigned nbits)
-{
- bitpack_word_t word = bp->word;
- int pos = bp->pos;
-
- /* Verify that VAL fits in the NBITS. */
- gcc_checking_assert (nbits == BITS_PER_BITPACK_WORD
- || !(val & ~(((bitpack_word_t)1<<nbits)-1)));
-
- /* If val does not fit into the current bitpack word switch to the
- next one. */
- if (pos + nbits > BITS_PER_BITPACK_WORD)
- {
- lto_output_uleb128_stream ((struct lto_output_stream *) bp->stream, word);
- word = val;
- pos = nbits;
- }
- else
- {
- word |= val << pos;
- pos += nbits;
- }
- bp->word = word;
- bp->pos = pos;
-}
-
-/* Finishes bit-packing of BP. */
-static inline void
-lto_output_bitpack (struct bitpack_d *bp)
-{
- lto_output_uleb128_stream ((struct lto_output_stream *) bp->stream,
- bp->word);
- bp->word = 0;
- bp->pos = 0;
-}
-
-/* Returns a new bit-packing context for bit-unpacking from IB. */
-static inline struct bitpack_d
-lto_input_bitpack (struct lto_input_block *ib)
-{
- struct bitpack_d bp;
- bp.word = lto_input_uleb128 (ib);
- bp.pos = 0;
- bp.stream = (void *)ib;
- return bp;
-}
-
-/* Unpacks NBITS bits from the bit-packing context BP and returns them. */
-static inline bitpack_word_t
-bp_unpack_value (struct bitpack_d *bp, unsigned nbits)
-{
- bitpack_word_t mask, val;
- int pos = bp->pos;
-
- mask = (nbits == BITS_PER_BITPACK_WORD
- ? (bitpack_word_t) -1
- : ((bitpack_word_t) 1 << nbits) - 1);
-
- /* If there are not continuous nbits in the current bitpack word
- switch to the next one. */
- if (pos + nbits > BITS_PER_BITPACK_WORD)
- {
- bp->word = val = lto_input_uleb128 ((struct lto_input_block *)bp->stream);
- bp->pos = nbits;
- return val & mask;
- }
- val = bp->word;
- val >>= pos;
- bp->pos = pos + nbits;
-
- return val & mask;
-}
-
-
-/* Write a character to the output block. */
-
-static inline void
-lto_output_1_stream (struct lto_output_stream *obs, char c)
-{
- /* No space left. */
- if (obs->left_in_block == 0)
- lto_append_block (obs);
-
- /* Write the actual character. */
- *obs->current_pointer = c;
- obs->current_pointer++;
- obs->total_size++;
- obs->left_in_block--;
-}
-
-
-/* Read byte from the input block. */
-
-static inline unsigned char
-lto_input_1_unsigned (struct lto_input_block *ib)
-{
- if (ib->p >= ib->len)
- lto_section_overrun (ib);
- return (ib->data[ib->p++]);
-}
-
-/* Output VAL into OBS and verify it is in range MIN...MAX that is supposed
- to be compile time constant.
- Be host independent, limit range to 31bits. */
-
-static inline void
-lto_output_int_in_range (struct lto_output_stream *obs,
- HOST_WIDE_INT min,
- HOST_WIDE_INT max,
- HOST_WIDE_INT val)
-{
- HOST_WIDE_INT range = max - min;
-
- gcc_checking_assert (val >= min && val <= max && range > 0
- && range < 0x7fffffff);
-
- val -= min;
- lto_output_1_stream (obs, val & 255);
- if (range >= 0xff)
- lto_output_1_stream (obs, (val >> 8) & 255);
- if (range >= 0xffff)
- lto_output_1_stream (obs, (val >> 16) & 255);
- if (range >= 0xffffff)
- lto_output_1_stream (obs, (val >> 24) & 255);
-}
-
-/* Input VAL into OBS and verify it is in range MIN...MAX that is supposed
- to be compile time constant. PURPOSE is used for error reporting. */
-
-static inline HOST_WIDE_INT
-lto_input_int_in_range (struct lto_input_block *ib,
- const char *purpose,
- HOST_WIDE_INT min,
- HOST_WIDE_INT max)
-{
- HOST_WIDE_INT range = max - min;
- HOST_WIDE_INT val = lto_input_1_unsigned (ib);
-
- gcc_checking_assert (range > 0 && range < 0x7fffffff);
-
- if (range >= 0xff)
- val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 8;
- if (range >= 0xffff)
- val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 16;
- if (range >= 0xffffff)
- val |= ((HOST_WIDE_INT)lto_input_1_unsigned (ib)) << 24;
- val += min;
- if (val < min || val > max)
- lto_value_range_error (purpose, val, min, max);
- return val;
-}
-
-
-/* Output VAL into BP and verify it is in range MIN...MAX that is supposed
- to be compile time constant.
- Be host independent, limit range to 31bits. */
-
-static inline void
-bp_pack_int_in_range (struct bitpack_d *bp,
- HOST_WIDE_INT min,
- HOST_WIDE_INT max,
- HOST_WIDE_INT val)
-{
- HOST_WIDE_INT range = max - min;
- int nbits = floor_log2 (range) + 1;
-
- gcc_checking_assert (val >= min && val <= max && range > 0
- && range < 0x7fffffff);
-
- val -= min;
- bp_pack_value (bp, val, nbits);
-}
-
-/* Input VAL into BP and verify it is in range MIN...MAX that is supposed
- to be compile time constant. PURPOSE is used for error reporting. */
-
-static inline HOST_WIDE_INT
-bp_unpack_int_in_range (struct bitpack_d *bp,
- const char *purpose,
- HOST_WIDE_INT min,
- HOST_WIDE_INT max)
-{
- HOST_WIDE_INT range = max - min;
- int nbits = floor_log2 (range) + 1;
- HOST_WIDE_INT val = bp_unpack_value (bp, nbits);
-
- gcc_checking_assert (range > 0 && range < 0x7fffffff);
-
- if (val < min || val > max)
- lto_value_range_error (purpose, val, min, max);
- return val;
-}
-
-/* Output VAL of type "enum enum_name" into OBS.
- Assume range 0...ENUM_LAST - 1. */
-#define lto_output_enum(obs,enum_name,enum_last,val) \
- lto_output_int_in_range ((obs), 0, (int)(enum_last) - 1, (int)(val))
-
-/* Input enum of type "enum enum_name" from IB.
- Assume range 0...ENUM_LAST - 1. */
-#define lto_input_enum(ib,enum_name,enum_last) \
- (enum enum_name)lto_input_int_in_range ((ib), #enum_name, 0, \
- (int)(enum_last) - 1)
-
-/* Output VAL of type "enum enum_name" into BP.
- Assume range 0...ENUM_LAST - 1. */
-#define bp_pack_enum(bp,enum_name,enum_last,val) \
- bp_pack_int_in_range ((bp), 0, (int)(enum_last) - 1, (int)(val))
-
-/* Input enum of type "enum enum_name" from BP.
- Assume range 0...ENUM_LAST - 1. */
-#define bp_unpack_enum(bp,enum_name,enum_last) \
- (enum enum_name)bp_unpack_int_in_range ((bp), #enum_name, 0, \
- (int)(enum_last) - 1)
-
#endif /* GCC_LTO_STREAMER_H */
+2011-08-08 Diego Novillo <dnovillo@google.com>
+
+ * Make-lang.in (lto/lto.o): Add TREE_STREAMER_H.
+ * lto.c: Include tree-streamer.h.
+
2011-07-06 Richard Guenther <rguenther@suse.de>
* lto-lang.c (lto_init):
langhooks.h $(VEC_H) $(BITMAP_H) pointer-set.h $(IPA_PROP_H) \
$(COMMON_H) debug.h $(TIMEVAR_H) $(GIMPLE_H) $(LTO_H) $(LTO_TREE_H) \
$(LTO_TAGS_H) $(LTO_STREAMER_H) $(SPLAY_TREE_H) gt-lto-lto.h $(PARAMS_H) \
- ipa-inline.h $(IPA_UTILS_H)
+ ipa-inline.h $(IPA_UTILS_H) $(TREE_STREAMER_H)
lto/lto-object.o: lto/lto-object.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
$(DIAGNOSTIC_CORE_H) $(LTO_H) $(TM_H) $(LTO_STREAMER_H) \
../include/simple-object.h
#include "lto.h"
#include "lto-tree.h"
#include "lto-streamer.h"
+#include "tree-streamer.h"
#include "splay-tree.h"
#include "params.h"
#include "ipa-inline.h"
--- /dev/null
+/* Streamer hooks. Support for adding streamer-specific callbacks to
+ generic streaming routines.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "streamer-hooks.h"
+
+/* Streamer hooks. */
+struct streamer_hooks streamer_hooks;
+
+/* Initialize the current set of streamer hooks. */
+
+void
+streamer_hooks_init (void)
+{
+ memset (&streamer_hooks, 0, sizeof (streamer_hooks));
+}
--- /dev/null
+/* Streamer hooks. Support for adding streamer-specific callbacks to
+ generic streaming routines.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_STREAMER_HOOKS_H
+#define GCC_STREAMER_HOOKS_H
+
+#include "tree.h"
+
+/* Forward declarations to avoid including unnecessary headers. */
+struct output_block;
+struct lto_input_block;
+struct data_in;
+struct bitpack_d;
+struct lto_streamer_cache_d;
+
+/* Streamer hooks. These functions do additional processing as
+ needed by the module. There are two types of callbacks, those that
+ replace the default behavior and those that supplement it.
+
+ Hooks marked [REQ] are required to be set. Those marked [OPT] may
+ be NULL, if the streamer does not need to implement them. */
+struct streamer_hooks {
+ /* [REQ] A string identifying this streamer. */
+ const char *name;
+
+ /* [REQ] Called by lto_streamer_cache_create to instantiate a cache of
+ well-known nodes. These are tree nodes that are always
+ instantiated by the compiler on startup. Additionally, these
+ nodes need to be shared. This function should call
+ lto_streamer_cache_append on every tree node that it wishes to
+ preload in the streamer cache. This way, the writer will only
+ write out a reference to the tree and the reader will instantiate
+ the tree out of this pre-populated cache. */
+ void (*preload_common_nodes) (struct lto_streamer_cache_d *);
+
+ /* [REQ] Return true if the given tree is supported by this streamer. */
+ bool (*is_streamable) (tree);
+
+ /* [OPT] Called by lto_write_tree after writing all the common parts of
+ a tree. If defined, the callback is in charge of writing all
+ the fields that lto_write_tree did not write out. Arguments
+ are as in lto_write_tree.
+
+ The following tree fields are not handled by common code:
+
+ DECL_ABSTRACT_ORIGIN
+ DECL_INITIAL
+ DECL_SAVED_TREE
+
+ Callbacks may choose to ignore or handle them. If handled,
+ the reader should read them in the exact same sequence written
+ by the writer. */
+ void (*write_tree) (struct output_block *, tree, bool);
+
+ /* [OPT] Called by lto_read_tree after reading all the common parts of
+ a tree. If defined, the callback is in charge of reading all
+ the fields that lto_read_tree did not read in. Arguments
+ are as in lto_read_tree. */
+ void (*read_tree) (struct lto_input_block *, struct data_in *, tree);
+
+ /* [OPT] Called by lto_output_tree_ref to determine if the given tree node
+ should be emitted as a reference to the table of declarations
+ (the same table that holds global declarations). */
+ bool (*indexable_with_decls_p) (tree);
+
+ /* [OPT] Called by pack_value_fields to store any non-pointer fields
+ in the tree structure. The arguments are as in pack_value_fields. */
+ void (*pack_value_fields) (struct bitpack_d *, tree);
+
+ /* [OPT] Called by unpack_value_fields to retrieve any non-pointer fields
+ in the tree structure. The arguments are as in unpack_value_fields. */
+ void (*unpack_value_fields) (struct bitpack_d *, tree);
+
+ /* [OPT] Called by lto_materialize_tree for tree nodes that it does not
+ know how to allocate memory for. If defined, this hook should
+ return a new tree node of the given code. The data_in and
+ input_block arguments are passed in case the hook needs to
+ read more data from the stream to allocate the node.
+ If this hook returns NULL, then lto_materialize_tree will attempt
+ to allocate the tree by calling make_node directly. */
+ tree (*alloc_tree) (enum tree_code, struct lto_input_block *,
+ struct data_in *);
+
+ /* [OPT] Called by lto_output_tree_header to write any streamer-specific
+ information needed to allocate the tree. This hook may assume
+ that the basic header data (tree code, etc) has already been
+ written. It should only write any extra data needed to allocate
+ the node (e.g., in the case of CALL_EXPR, this hook would write
+ the number of arguments to the CALL_EXPR). */
+ void (*output_tree_header) (struct output_block *, tree);
+};
+
+/* Streamer hooks. */
+extern struct streamer_hooks streamer_hooks;
+
+/* In streamer-hooks.c. */
+void streamer_hooks_init (void);
+
+#endif /* GCC_STREAMER_HOOKS_H */
--- /dev/null
+/* Routines for reading trees from a file stream.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic.h"
+#include "tree.h"
+#include "tree-flow.h"
+#include "tree-streamer.h"
+#include "data-streamer.h"
+#include "streamer-hooks.h"
+#include "lto-streamer.h"
+
+/* Read a STRING_CST from the string table in DATA_IN using input
+ block IB. */
+
+tree
+input_string_cst (struct data_in *data_in, struct lto_input_block *ib)
+{
+ unsigned int len;
+ const char * ptr;
+
+ ptr = input_string_internal (data_in, ib, &len);
+ if (!ptr)
+ return NULL;
+ return build_string (len, ptr);
+}
+
+
+/* Read an IDENTIFIER from the string table in DATA_IN using input
+ block IB. */
+
+static tree
+input_identifier (struct data_in *data_in, struct lto_input_block *ib)
+{
+ unsigned int len;
+ const char *ptr;
+
+ ptr = input_string_internal (data_in, ib, &len);
+ if (!ptr)
+ return NULL;
+ return get_identifier_with_length (ptr, len);
+}
+
+
+/* Read a chain of tree nodes from input block IB. DATA_IN contains
+ tables and descriptors for the file being read. */
+
+static tree
+lto_input_chain (struct lto_input_block *ib, struct data_in *data_in)
+{
+ int i, count;
+ tree first, prev, curr;
+
+ first = prev = NULL_TREE;
+ count = lto_input_sleb128 (ib);
+ for (i = 0; i < count; i++)
+ {
+ curr = lto_input_tree (ib, data_in);
+ if (prev)
+ TREE_CHAIN (prev) = curr;
+ else
+ first = curr;
+
+ TREE_CHAIN (curr) = NULL_TREE;
+ prev = curr;
+ }
+
+ return first;
+}
+
+
+/* Unpack all the non-pointer fields of the TS_BASE structure of
+ expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
+{
+ /* Note that the code for EXPR has already been unpacked to create EXPR in
+ lto_materialize_tree. */
+ if (!TYPE_P (expr))
+ {
+ TREE_SIDE_EFFECTS (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_CONSTANT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
+
+ /* TREE_PUBLIC is used on types to indicate that the type
+ has a TYPE_CACHED_VALUES vector. This is not streamed out,
+ so we skip it here. */
+ TREE_PUBLIC (expr) = (unsigned) bp_unpack_value (bp, 1);
+ }
+ else
+ bp_unpack_value (bp, 4);
+ TREE_ADDRESSABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_THIS_VOLATILE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (DECL_P (expr))
+ DECL_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ else if (TYPE_P (expr))
+ TYPE_UNSIGNED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ else
+ bp_unpack_value (bp, 1);
+ TREE_ASM_WRITTEN (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (TYPE_P (expr))
+ TYPE_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
+ else
+ TREE_NO_WARNING (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_USED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_NOTHROW (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_STATIC (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_PRIVATE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_PROTECTED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TREE_DEPRECATED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (TYPE_P (expr))
+ TYPE_SATURATING (expr) = (unsigned) bp_unpack_value (bp, 1);
+ else if (TREE_CODE (expr) == SSA_NAME)
+ SSA_NAME_IS_DEFAULT_DEF (expr) = (unsigned) bp_unpack_value (bp, 1);
+ else
+ bp_unpack_value (bp, 1);
+}
+
+
+/* Unpack all the non-pointer fields of the TS_REAL_CST structure of
+ expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
+{
+ unsigned i;
+ REAL_VALUE_TYPE r;
+ REAL_VALUE_TYPE *rp;
+
+ r.cl = (unsigned) bp_unpack_value (bp, 2);
+ r.decimal = (unsigned) bp_unpack_value (bp, 1);
+ r.sign = (unsigned) bp_unpack_value (bp, 1);
+ r.signalling = (unsigned) bp_unpack_value (bp, 1);
+ r.canonical = (unsigned) bp_unpack_value (bp, 1);
+ r.uexp = (unsigned) bp_unpack_value (bp, EXP_BITS);
+ for (i = 0; i < SIGSZ; i++)
+ r.sig[i] = (unsigned long) bp_unpack_value (bp, HOST_BITS_PER_LONG);
+
+ rp = ggc_alloc_real_value ();
+ memcpy (rp, &r, sizeof (REAL_VALUE_TYPE));
+ TREE_REAL_CST_PTR (expr) = rp;
+}
+
+
+/* Unpack all the non-pointer fields of the TS_FIXED_CST structure of
+ expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
+{
+ struct fixed_value fv;
+
+ fv.mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
+ fv.data.low = bp_unpack_var_len_int (bp);
+ fv.data.high = bp_unpack_var_len_int (bp);
+ TREE_FIXED_CST (expr) = fv;
+}
+
+
+/* Unpack all the non-pointer fields of the TS_DECL_COMMON structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
+{
+ DECL_MODE (expr) = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
+ DECL_NONLOCAL (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_VIRTUAL_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IGNORED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_ARTIFICIAL (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_PRESERVE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_DEBUG_EXPR_IS_FROM (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_EXTERNAL (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_GIMPLE_REG_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_ALIGN (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
+
+ if (TREE_CODE (expr) == LABEL_DECL)
+ {
+ DECL_ERROR_ISSUED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ EH_LANDING_PAD_NR (expr) = (int) bp_unpack_var_len_unsigned (bp);
+
+ /* Always assume an initial value of -1 for LABEL_DECL_UID to
+ force gimple_set_bb to recreate label_to_block_map. */
+ LABEL_DECL_UID (expr) = -1;
+ }
+
+ if (TREE_CODE (expr) == FIELD_DECL)
+ {
+ DECL_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_NONADDRESSABLE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ expr->decl_common.off_align = bp_unpack_value (bp, 8);
+ }
+
+ if (TREE_CODE (expr) == RESULT_DECL
+ || TREE_CODE (expr) == PARM_DECL
+ || TREE_CODE (expr) == VAR_DECL)
+ {
+ DECL_BY_REFERENCE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (TREE_CODE (expr) == VAR_DECL
+ || TREE_CODE (expr) == PARM_DECL)
+ DECL_HAS_VALUE_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_RESTRICTED_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ }
+}
+
+
+/* Unpack all the non-pointer fields of the TS_DECL_WRTL structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
+{
+ DECL_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
+}
+
+
+/* Unpack all the non-pointer fields of the TS_DECL_WITH_VIS structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
+{
+ DECL_DEFER_OUTPUT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_COMMON (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_DLLIMPORT_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_WEAK (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_SEEN_IN_BIND_EXPR_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_COMDAT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_VISIBILITY (expr) = (enum symbol_visibility) bp_unpack_value (bp, 2);
+ DECL_VISIBILITY_SPECIFIED (expr) = (unsigned) bp_unpack_value (bp, 1);
+
+ if (TREE_CODE (expr) == VAR_DECL)
+ {
+ DECL_HARD_REGISTER (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IN_TEXT_SECTION (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IN_CONSTANT_POOL (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_TLS_MODEL (expr) = (enum tls_model) bp_unpack_value (bp, 3);
+ }
+
+ if (VAR_OR_FUNCTION_DECL_P (expr))
+ {
+ priority_type p;
+ p = (priority_type) bp_unpack_var_len_unsigned (bp);
+ SET_DECL_INIT_PRIORITY (expr, p);
+ }
+}
+
+
+/* Unpack all the non-pointer fields of the TS_FUNCTION_DECL structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
+{
+ DECL_BUILT_IN_CLASS (expr) = bp_unpack_enum (bp, built_in_class,
+ BUILT_IN_LAST);
+ DECL_STATIC_CONSTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_STATIC_DESTRUCTOR (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_UNINLINABLE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_POSSIBLY_INLINED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IS_NOVOPS (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IS_RETURNS_TWICE (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IS_MALLOC (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_IS_OPERATOR_NEW (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_DECLARED_INLINE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_STATIC_CHAIN (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_NO_INLINE_WARNING_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr)
+ = (unsigned) bp_unpack_value (bp, 1);
+ DECL_NO_LIMIT_STACK (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_DISREGARD_INLINE_LIMITS (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ DECL_LOOPING_CONST_OR_PURE_P (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
+ {
+ DECL_FUNCTION_CODE (expr) = (enum built_in_function) bp_unpack_value (bp,
+ 11);
+ if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
+ && DECL_FUNCTION_CODE (expr) >= END_BUILTINS)
+ fatal_error ("machine independent builtin code out of range");
+ else if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD)
+ {
+ tree result = targetm.builtin_decl (DECL_FUNCTION_CODE (expr), true);
+ if (!result || result == error_mark_node)
+ fatal_error ("target specific builtin not available");
+ }
+ }
+ if (DECL_STATIC_DESTRUCTOR (expr))
+ {
+ priority_type p;
+ p = (priority_type) bp_unpack_var_len_unsigned (bp);
+ SET_DECL_FINI_PRIORITY (expr, p);
+ }
+}
+
+
+/* Unpack all the non-pointer fields of the TS_TYPE_COMMON structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
+{
+ enum machine_mode mode;
+
+ mode = bp_unpack_enum (bp, machine_mode, MAX_MACHINE_MODE);
+ SET_TYPE_MODE (expr, mode);
+ TYPE_STRING_FLAG (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_NO_FORCE_BLK (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_NEEDS_CONSTRUCTING (expr) = (unsigned) bp_unpack_value (bp, 1);
+ if (RECORD_OR_UNION_TYPE_P (expr))
+ TYPE_TRANSPARENT_AGGR (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_PACKED (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_RESTRICT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr)
+ = (unsigned) bp_unpack_value (bp, 2);
+ TYPE_USER_ALIGN (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_READONLY (expr) = (unsigned) bp_unpack_value (bp, 1);
+ TYPE_PRECISION (expr) = bp_unpack_var_len_unsigned (bp);
+ TYPE_ALIGN (expr) = bp_unpack_var_len_unsigned (bp);
+ TYPE_ALIAS_SET (expr) = bp_unpack_var_len_int (bp);
+}
+
+
+/* Unpack all the non-pointer fields of the TS_BLOCK structure
+ of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_block_value_fields (struct bitpack_d *bp, tree expr)
+{
+ BLOCK_ABSTRACT (expr) = (unsigned) bp_unpack_value (bp, 1);
+ /* BLOCK_NUMBER is recomputed. */
+}
+
+/* Unpack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL
+ structure of expression EXPR from bitpack BP. */
+
+static void
+unpack_ts_translation_unit_decl_value_fields (struct bitpack_d *bp ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED)
+{
+}
+
+/* Unpack all the non-pointer fields in EXPR into a bit pack. */
+
+static void
+unpack_value_fields (struct bitpack_d *bp, tree expr)
+{
+ enum tree_code code;
+
+ code = TREE_CODE (expr);
+
+ /* Note that all these functions are highly sensitive to changes in
+ the types and sizes of each of the fields being packed. */
+ unpack_ts_base_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
+ unpack_ts_real_cst_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
+ unpack_ts_fixed_cst_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
+ unpack_ts_decl_common_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
+ unpack_ts_decl_wrtl_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ unpack_ts_decl_with_vis_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
+ unpack_ts_function_decl_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
+ unpack_ts_type_common_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
+ unpack_ts_block_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
+ unpack_ts_translation_unit_decl_value_fields (bp, expr);
+
+ if (streamer_hooks.unpack_value_fields)
+ streamer_hooks.unpack_value_fields (bp, expr);
+}
+
+
+/* Materialize a new tree from input block IB using descriptors in
+ DATA_IN. The code for the new tree should match TAG. Store in
+ *IX_P the index into the reader cache where the new tree is stored. */
+
+static tree
+lto_materialize_tree (struct lto_input_block *ib, struct data_in *data_in,
+ enum LTO_tags tag)
+{
+ struct bitpack_d bp;
+ enum tree_code code;
+ tree result;
+#ifdef LTO_STREAMER_DEBUG
+ HOST_WIDEST_INT orig_address_in_writer;
+#endif
+
+ result = NULL_TREE;
+
+#ifdef LTO_STREAMER_DEBUG
+ /* Read the word representing the memory address for the tree
+ as it was written by the writer. This is useful when
+ debugging differences between the writer and reader. */
+ orig_address_in_writer = lto_input_sleb128 (ib);
+ gcc_assert ((intptr_t) orig_address_in_writer == orig_address_in_writer);
+#endif
+
+ code = lto_tag_to_tree_code (tag);
+
+ /* We should never see an SSA_NAME tree. Only the version numbers of
+ SSA names are ever written out. See input_ssa_names. */
+ gcc_assert (code != SSA_NAME);
+
+ /* Instantiate a new tree using the header data. */
+ if (CODE_CONTAINS_STRUCT (code, TS_STRING))
+ result = input_string_cst (data_in, ib);
+ else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
+ result = input_identifier (data_in, ib);
+ else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
+ {
+ HOST_WIDE_INT len = lto_input_sleb128 (ib);
+ result = make_tree_vec (len);
+ }
+ else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
+ {
+ unsigned HOST_WIDE_INT len = lto_input_uleb128 (ib);
+ result = make_tree_binfo (len);
+ }
+ else
+ {
+ /* For all other nodes, see if the streamer knows how to allocate
+ it. */
+ if (streamer_hooks.alloc_tree)
+ result = streamer_hooks.alloc_tree (code, ib, data_in);
+
+ /* If the hook did not handle it, materialize the tree with a raw
+ make_node call. */
+ if (result == NULL_TREE)
+ result = make_node (code);
+ }
+
+#ifdef LTO_STREAMER_DEBUG
+ /* Store the original address of the tree as seen by the writer
+ in RESULT's aux field. This is useful when debugging streaming
+ problems. This way, a debugging session can be started on
+ both writer and reader with a breakpoint using this address
+ value in both. */
+ lto_orig_address_map (result, (intptr_t) orig_address_in_writer);
+#endif
+
+ /* Read the bitpack of non-pointer values from IB. */
+ bp = lto_input_bitpack (ib);
+
+ /* The first word in BP contains the code of the tree that we
+ are about to read. */
+ code = (enum tree_code) bp_unpack_value (&bp, 16);
+ lto_tag_check (lto_tree_code_to_tag (code), tag);
+
+ /* Unpack all the value fields from BP. */
+ unpack_value_fields (&bp, result);
+
+ /* Enter RESULT in the reader cache. This will make RESULT
+ available so that circular references in the rest of the tree
+ structure can be resolved in subsequent calls to lto_input_tree. */
+ lto_streamer_cache_append (data_in->reader_cache, result);
+
+ return result;
+}
+
+
+/* Read all pointer fields in the TS_COMMON structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+
+static void
+lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ if (TREE_CODE (expr) != IDENTIFIER_NODE)
+ TREE_TYPE (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_VECTOR structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_vector_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ TREE_VECTOR_CST_ELTS (expr) = lto_input_chain (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_COMPLEX structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_complex_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ TREE_REALPART (expr) = lto_input_tree (ib, data_in);
+ TREE_IMAGPART (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_DECL_MINIMAL structure of EXPR
+ from input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_decl_minimal_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ DECL_NAME (expr) = lto_input_tree (ib, data_in);
+ DECL_CONTEXT (expr) = lto_input_tree (ib, data_in);
+ DECL_SOURCE_LOCATION (expr) = lto_input_location (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_DECL_COMMON structure of EXPR from
+ input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_decl_common_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ DECL_SIZE (expr) = lto_input_tree (ib, data_in);
+ DECL_SIZE_UNIT (expr) = lto_input_tree (ib, data_in);
+ DECL_ATTRIBUTES (expr) = lto_input_tree (ib, data_in);
+
+ /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+
+ if (TREE_CODE (expr) == PARM_DECL)
+ TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
+
+ if ((TREE_CODE (expr) == VAR_DECL
+ || TREE_CODE (expr) == PARM_DECL)
+ && DECL_HAS_VALUE_EXPR_P (expr))
+ SET_DECL_VALUE_EXPR (expr, lto_input_tree (ib, data_in));
+
+ if (TREE_CODE (expr) == VAR_DECL)
+ {
+ tree dexpr = lto_input_tree (ib, data_in);
+ if (dexpr)
+ SET_DECL_DEBUG_EXPR (expr, dexpr);
+ }
+}
+
+
+/* Read all pointer fields in the TS_DECL_NON_COMMON structure of
+ EXPR from input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_decl_non_common_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ if (TREE_CODE (expr) == FUNCTION_DECL)
+ {
+ DECL_ARGUMENTS (expr) = lto_input_tree (ib, data_in);
+ DECL_RESULT (expr) = lto_input_tree (ib, data_in);
+ }
+ DECL_VINDEX (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
+ from input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_decl_with_vis_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ tree id;
+
+ id = lto_input_tree (ib, data_in);
+ if (id)
+ {
+ gcc_assert (TREE_CODE (id) == IDENTIFIER_NODE);
+ SET_DECL_ASSEMBLER_NAME (expr, id);
+ }
+
+ DECL_SECTION_NAME (expr) = lto_input_tree (ib, data_in);
+ DECL_COMDAT_GROUP (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_FIELD_DECL structure of EXPR from
+ input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_field_decl_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ DECL_FIELD_OFFSET (expr) = lto_input_tree (ib, data_in);
+ DECL_BIT_FIELD_TYPE (expr) = lto_input_tree (ib, data_in);
+ DECL_QUALIFIER (expr) = lto_input_tree (ib, data_in);
+ DECL_FIELD_BIT_OFFSET (expr) = lto_input_tree (ib, data_in);
+ DECL_FCONTEXT (expr) = lto_input_tree (ib, data_in);
+ TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_FUNCTION_DECL structure of EXPR
+ from input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_function_decl_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ /* DECL_STRUCT_FUNCTION is handled by lto_input_function. FIXME lto,
+ maybe it should be handled here? */
+ DECL_FUNCTION_PERSONALITY (expr) = lto_input_tree (ib, data_in);
+ DECL_FUNCTION_SPECIFIC_TARGET (expr) = lto_input_tree (ib, data_in);
+ DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr) = lto_input_tree (ib, data_in);
+
+ /* If the file contains a function with an EH personality set,
+ then it was compiled with -fexceptions. In that case, initialize
+ the backend EH machinery. */
+ if (DECL_FUNCTION_PERSONALITY (expr))
+ lto_init_eh ();
+}
+
+
+/* Read all pointer fields in the TS_TYPE_COMMON structure of EXPR from
+ input block IB. DATA_IN contains tables and descriptors for the file
+ being read. */
+
+static void
+lto_input_ts_type_common_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ TYPE_SIZE (expr) = lto_input_tree (ib, data_in);
+ TYPE_SIZE_UNIT (expr) = lto_input_tree (ib, data_in);
+ TYPE_ATTRIBUTES (expr) = lto_input_tree (ib, data_in);
+ TYPE_NAME (expr) = lto_input_tree (ib, data_in);
+ /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
+ reconstructed during fixup. */
+ /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
+ during fixup. */
+ TYPE_MAIN_VARIANT (expr) = lto_input_tree (ib, data_in);
+ TYPE_CONTEXT (expr) = lto_input_tree (ib, data_in);
+ /* TYPE_CANONICAL gets re-computed during type merging. */
+ TYPE_CANONICAL (expr) = NULL_TREE;
+ TYPE_STUB_DECL (expr) = lto_input_tree (ib, data_in);
+}
+
+/* Read all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
+ from input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_type_non_common_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in,
+ tree expr)
+{
+ if (TREE_CODE (expr) == ENUMERAL_TYPE)
+ TYPE_VALUES (expr) = lto_input_tree (ib, data_in);
+ else if (TREE_CODE (expr) == ARRAY_TYPE)
+ TYPE_DOMAIN (expr) = lto_input_tree (ib, data_in);
+ else if (RECORD_OR_UNION_TYPE_P (expr))
+ TYPE_FIELDS (expr) = lto_input_tree (ib, data_in);
+ else if (TREE_CODE (expr) == FUNCTION_TYPE
+ || TREE_CODE (expr) == METHOD_TYPE)
+ TYPE_ARG_TYPES (expr) = lto_input_tree (ib, data_in);
+
+ if (!POINTER_TYPE_P (expr))
+ TYPE_MINVAL (expr) = lto_input_tree (ib, data_in);
+ TYPE_MAXVAL (expr) = lto_input_tree (ib, data_in);
+ if (RECORD_OR_UNION_TYPE_P (expr))
+ TYPE_BINFO (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_LIST structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_list_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ TREE_PURPOSE (expr) = lto_input_tree (ib, data_in);
+ TREE_VALUE (expr) = lto_input_tree (ib, data_in);
+ TREE_CHAIN (expr) = lto_input_chain (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_VEC structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_vec_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ int i;
+
+ /* Note that TREE_VEC_LENGTH was read by lto_materialize_tree to
+ instantiate EXPR. */
+ for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
+ TREE_VEC_ELT (expr, i) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_EXP structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+
+static void
+lto_input_ts_exp_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ int i, length;
+ location_t loc;
+
+ length = lto_input_sleb128 (ib);
+ gcc_assert (length == TREE_OPERAND_LENGTH (expr));
+
+ for (i = 0; i < length; i++)
+ TREE_OPERAND (expr, i) = lto_input_tree (ib, data_in);
+
+ loc = lto_input_location (ib, data_in);
+ SET_EXPR_LOCATION (expr, loc);
+ TREE_BLOCK (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_BLOCK structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_block_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ /* Do not stream BLOCK_SOURCE_LOCATION. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+ BLOCK_VARS (expr) = lto_input_chain (ib, data_in);
+
+ /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+
+ BLOCK_SUPERCONTEXT (expr) = lto_input_tree (ib, data_in);
+
+ /* Do not stream BLOCK_ABSTRACT_ORIGIN. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+ BLOCK_FRAGMENT_ORIGIN (expr) = lto_input_tree (ib, data_in);
+ BLOCK_FRAGMENT_CHAIN (expr) = lto_input_tree (ib, data_in);
+
+ /* We re-compute BLOCK_SUBBLOCKS of our parent here instead
+ of streaming it. For non-BLOCK BLOCK_SUPERCONTEXTs we still
+ stream the child relationship explicitly. */
+ if (BLOCK_SUPERCONTEXT (expr)
+ && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == BLOCK)
+ {
+ BLOCK_CHAIN (expr) = BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr));
+ BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
+ }
+
+ /* The global block is rooted at the TU decl. Hook it here to
+ avoid the need to stream in this block during WPA time. */
+ else if (BLOCK_SUPERCONTEXT (expr)
+ && TREE_CODE (BLOCK_SUPERCONTEXT (expr)) == TRANSLATION_UNIT_DECL)
+ DECL_INITIAL (BLOCK_SUPERCONTEXT (expr)) = expr;
+
+ /* The function-level block is connected at the time we read in
+ function bodies for the same reason. */
+}
+
+
+/* Read all pointer fields in the TS_BINFO structure of EXPR from input
+ block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_binfo_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ unsigned i, len;
+ tree t;
+
+ /* Note that the number of slots in EXPR was read in
+ lto_materialize_tree when instantiating EXPR. However, the
+ vector is empty so we cannot rely on VEC_length to know how many
+ elements to read. So, this list is emitted as a 0-terminated
+ list on the writer side. */
+ do
+ {
+ t = lto_input_tree (ib, data_in);
+ if (t)
+ VEC_quick_push (tree, BINFO_BASE_BINFOS (expr), t);
+ }
+ while (t);
+
+ BINFO_OFFSET (expr) = lto_input_tree (ib, data_in);
+ BINFO_VTABLE (expr) = lto_input_tree (ib, data_in);
+ BINFO_VIRTUALS (expr) = lto_input_tree (ib, data_in);
+ BINFO_VPTR_FIELD (expr) = lto_input_tree (ib, data_in);
+
+ len = lto_input_uleb128 (ib);
+ if (len > 0)
+ {
+ VEC_reserve_exact (tree, gc, BINFO_BASE_ACCESSES (expr), len);
+ for (i = 0; i < len; i++)
+ {
+ tree a = lto_input_tree (ib, data_in);
+ VEC_quick_push (tree, BINFO_BASE_ACCESSES (expr), a);
+ }
+ }
+
+ BINFO_INHERITANCE_CHAIN (expr) = lto_input_tree (ib, data_in);
+ BINFO_SUBVTT_INDEX (expr) = lto_input_tree (ib, data_in);
+ BINFO_VPTR_INDEX (expr) = lto_input_tree (ib, data_in);
+}
+
+
+/* Read all pointer fields in the TS_CONSTRUCTOR structure of EXPR from
+ input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_ts_constructor_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in, tree expr)
+{
+ unsigned i, len;
+
+ len = lto_input_uleb128 (ib);
+ for (i = 0; i < len; i++)
+ {
+ tree index, value;
+
+ index = lto_input_tree (ib, data_in);
+ value = lto_input_tree (ib, data_in);
+ CONSTRUCTOR_APPEND_ELT (CONSTRUCTOR_ELTS (expr), index, value);
+ }
+}
+
+
+/* Input a TS_TARGET_OPTION tree from IB into EXPR. */
+
+static void
+lto_input_ts_target_option (struct lto_input_block *ib, tree expr)
+{
+ unsigned i, len;
+ struct bitpack_d bp;
+ struct cl_target_option *t = TREE_TARGET_OPTION (expr);
+
+ bp = lto_input_bitpack (ib);
+ len = sizeof (struct cl_target_option);
+ for (i = 0; i < len; i++)
+ ((unsigned char *)t)[i] = bp_unpack_value (&bp, 8);
+ if (bp_unpack_value (&bp, 32) != 0x12345678)
+ fatal_error ("cl_target_option size mismatch in LTO reader and writer");
+}
+
+/* Input a TS_TRANSLATION_UNIT_DECL tree from IB and DATA_IN into EXPR. */
+
+static void
+lto_input_ts_translation_unit_decl_tree_pointers (struct lto_input_block *ib,
+ struct data_in *data_in,
+ tree expr)
+{
+ TRANSLATION_UNIT_LANGUAGE (expr) = xstrdup (lto_input_string (data_in, ib));
+ VEC_safe_push (tree, gc, all_translation_units, expr);
+}
+
+/* Helper for lto_input_tree. Read all pointer fields in EXPR from
+ input block IB. DATA_IN contains tables and descriptors for the
+ file being read. */
+
+static void
+lto_input_tree_pointers (struct lto_input_block *ib, struct data_in *data_in,
+ tree expr)
+{
+ enum tree_code code;
+
+ code = TREE_CODE (expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
+ lto_input_ts_common_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
+ lto_input_ts_vector_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
+ lto_input_ts_complex_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
+ lto_input_ts_decl_minimal_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
+ lto_input_ts_decl_common_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
+ lto_input_ts_decl_non_common_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ lto_input_ts_decl_with_vis_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
+ lto_input_ts_field_decl_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
+ lto_input_ts_function_decl_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
+ lto_input_ts_type_common_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
+ lto_input_ts_type_non_common_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_LIST))
+ lto_input_ts_list_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_VEC))
+ lto_input_ts_vec_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_EXP))
+ lto_input_ts_exp_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
+ lto_input_ts_block_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
+ lto_input_ts_binfo_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
+ lto_input_ts_constructor_tree_pointers (ib, data_in, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
+ lto_input_ts_target_option (ib, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
+ lto_input_ts_translation_unit_decl_tree_pointers (ib, data_in, expr);
+}
+
+
+/* Read the physical representation of a tree node with tag TAG from
+ input block IB using the per-file context in DATA_IN. */
+
+static tree
+lto_read_tree (struct lto_input_block *ib, struct data_in *data_in,
+ enum LTO_tags tag)
+{
+ tree result;
+
+ result = lto_materialize_tree (ib, data_in, tag);
+
+ /* Read all the pointer fields in RESULT. */
+ lto_input_tree_pointers (ib, data_in, result);
+
+ /* Call back into the streaming module to read anything else it
+ may need. */
+ if (streamer_hooks.read_tree)
+ streamer_hooks.read_tree (ib, data_in, result);
+
+ /* We should never try to instantiate an MD or NORMAL builtin here. */
+ if (TREE_CODE (result) == FUNCTION_DECL)
+ gcc_assert (!lto_stream_as_builtin_p (result));
+
+ /* end_marker = */ lto_input_1_unsigned (ib);
+
+#ifdef LTO_STREAMER_DEBUG
+ /* Remove the mapping to RESULT's original address set by
+ lto_materialize_tree. */
+ lto_orig_address_remove (result);
+#endif
+
+ return result;
+}
+
+
+/* Read and INTEGER_CST node from input block IB using the per-file
+ context in DATA_IN. */
+
+static tree
+lto_input_integer_cst (struct lto_input_block *ib, struct data_in *data_in)
+{
+ tree result, type;
+ HOST_WIDE_INT low, high;
+ bool overflow_p;
+
+ type = lto_input_tree (ib, data_in);
+ overflow_p = (lto_input_1_unsigned (ib) != 0);
+ low = lto_input_uleb128 (ib);
+ high = lto_input_uleb128 (ib);
+ result = build_int_cst_wide (type, low, high);
+
+ /* If the original constant had overflown, build a replica of RESULT to
+ avoid modifying the shared constant returned by build_int_cst_wide. */
+ if (overflow_p)
+ {
+ result = copy_node (result);
+ TREE_OVERFLOW (result) = 1;
+ }
+
+ return result;
+}
+
+
+/* Read an index IX from input block IB and return the tree node at
+ DATA_IN->FILE_DATA->GLOBALS_INDEX[IX]. */
+
+static tree
+lto_get_pickled_tree (struct lto_input_block *ib, struct data_in *data_in)
+{
+ unsigned HOST_WIDE_INT ix;
+ tree result;
+ enum LTO_tags expected_tag;
+
+ ix = lto_input_uleb128 (ib);
+ expected_tag = lto_input_enum (ib, LTO_tags, LTO_NUM_TAGS);
+
+ result = lto_streamer_cache_get (data_in->reader_cache, ix);
+ gcc_assert (result
+ && TREE_CODE (result) == lto_tag_to_tree_code (expected_tag));
+
+ return result;
+}
+
+
+/* Read a code and class from input block IB and return the
+ corresponding builtin. DATA_IN is as in lto_input_tree. */
+
+static tree
+lto_get_builtin_tree (struct lto_input_block *ib, struct data_in *data_in)
+{
+ enum built_in_class fclass;
+ enum built_in_function fcode;
+ const char *asmname;
+ tree result;
+
+ fclass = lto_input_enum (ib, built_in_class, BUILT_IN_LAST);
+ gcc_assert (fclass == BUILT_IN_NORMAL || fclass == BUILT_IN_MD);
+
+ fcode = (enum built_in_function) lto_input_uleb128 (ib);
+
+ if (fclass == BUILT_IN_NORMAL)
+ {
+ if (fcode >= END_BUILTINS)
+ fatal_error ("machine independent builtin code out of range");
+ result = built_in_decls[fcode];
+ gcc_assert (result);
+ }
+ else if (fclass == BUILT_IN_MD)
+ {
+ result = targetm.builtin_decl (fcode, true);
+ if (!result || result == error_mark_node)
+ fatal_error ("target specific builtin not available");
+ }
+ else
+ gcc_unreachable ();
+
+ asmname = lto_input_string (data_in, ib);
+ if (asmname)
+ set_builtin_user_assembler_name (result, asmname);
+
+ lto_streamer_cache_append (data_in->reader_cache, result);
+
+ return result;
+}
+
+
+/* Read a tree from input block IB using the per-file context in
+ DATA_IN. This context is used, for example, to resolve references
+ to previously read nodes. */
+
+tree
+lto_input_tree (struct lto_input_block *ib, struct data_in *data_in)
+{
+ enum LTO_tags tag;
+ tree result;
+
+ tag = input_record_start (ib);
+ gcc_assert ((unsigned) tag < (unsigned) LTO_NUM_TAGS);
+
+ if (tag == LTO_null)
+ result = NULL_TREE;
+ else if (tag >= LTO_field_decl_ref && tag <= LTO_global_decl_ref)
+ {
+ /* If TAG is a reference to an indexable tree, the next value
+ in IB is the index into the table where we expect to find
+ that tree. */
+ result = lto_input_tree_ref (ib, data_in, cfun, tag);
+ }
+ else if (tag == LTO_tree_pickle_reference)
+ {
+ /* If TAG is a reference to a previously read tree, look it up in
+ the reader cache. */
+ result = lto_get_pickled_tree (ib, data_in);
+ }
+ else if (tag == LTO_builtin_decl)
+ {
+ /* If we are going to read a built-in function, all we need is
+ the code and class. */
+ result = lto_get_builtin_tree (ib, data_in);
+ }
+ else if (tag == lto_tree_code_to_tag (INTEGER_CST))
+ {
+ /* For integer constants we only need the type and its hi/low
+ words. */
+ result = lto_input_integer_cst (ib, data_in);
+ }
+ else
+ {
+ /* Otherwise, materialize a new node from IB. */
+ result = lto_read_tree (ib, data_in, tag);
+ }
+
+ return result;
+}
--- /dev/null
+/* Routines for emitting trees to a file stream.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "diagnostic.h"
+#include "tree.h"
+#include "tree-streamer.h"
+#include "data-streamer.h"
+#include "streamer-hooks.h"
+
+/* Output the STRING constant to the string
+ table in OB. Then put the index onto the INDEX_STREAM. */
+
+static void
+output_string_cst (struct output_block *ob,
+ struct lto_output_stream *index_stream,
+ tree string)
+{
+ lto_output_string_with_length (ob, index_stream,
+ TREE_STRING_POINTER (string),
+ TREE_STRING_LENGTH (string),
+ true);
+}
+
+
+/* Output the identifier ID to the string
+ table in OB. Then put the index onto the INDEX_STREAM. */
+
+static void
+output_identifier (struct output_block *ob,
+ struct lto_output_stream *index_stream,
+ tree id)
+{
+ lto_output_string_with_length (ob, index_stream,
+ IDENTIFIER_POINTER (id),
+ IDENTIFIER_LENGTH (id),
+ true);
+}
+
+
+/* Pack all the non-pointer fields of the TS_BASE structure of
+ expression EXPR into bitpack BP. */
+
+static void
+pack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_value (bp, TREE_CODE (expr), 16);
+ if (!TYPE_P (expr))
+ {
+ bp_pack_value (bp, TREE_SIDE_EFFECTS (expr), 1);
+ bp_pack_value (bp, TREE_CONSTANT (expr), 1);
+ bp_pack_value (bp, TREE_READONLY (expr), 1);
+
+ /* TREE_PUBLIC is used on types to indicate that the type
+ has a TYPE_CACHED_VALUES vector. This is not streamed out,
+ so we skip it here. */
+ bp_pack_value (bp, TREE_PUBLIC (expr), 1);
+ }
+ else
+ bp_pack_value (bp, 0, 4);
+ bp_pack_value (bp, TREE_ADDRESSABLE (expr), 1);
+ bp_pack_value (bp, TREE_THIS_VOLATILE (expr), 1);
+ if (DECL_P (expr))
+ bp_pack_value (bp, DECL_UNSIGNED (expr), 1);
+ else if (TYPE_P (expr))
+ bp_pack_value (bp, TYPE_UNSIGNED (expr), 1);
+ else
+ bp_pack_value (bp, 0, 1);
+ /* We write debug info two times, do not confuse the second one. */
+ bp_pack_value (bp, TYPE_P (expr) ? 0 : TREE_ASM_WRITTEN (expr), 1);
+ if (TYPE_P (expr))
+ bp_pack_value (bp, TYPE_ARTIFICIAL (expr), 1);
+ else
+ bp_pack_value (bp, TREE_NO_WARNING (expr), 1);
+ bp_pack_value (bp, TREE_USED (expr), 1);
+ bp_pack_value (bp, TREE_NOTHROW (expr), 1);
+ bp_pack_value (bp, TREE_STATIC (expr), 1);
+ bp_pack_value (bp, TREE_PRIVATE (expr), 1);
+ bp_pack_value (bp, TREE_PROTECTED (expr), 1);
+ bp_pack_value (bp, TREE_DEPRECATED (expr), 1);
+ if (TYPE_P (expr))
+ bp_pack_value (bp, TYPE_SATURATING (expr), 1);
+ else if (TREE_CODE (expr) == SSA_NAME)
+ bp_pack_value (bp, SSA_NAME_IS_DEFAULT_DEF (expr), 1);
+ else
+ bp_pack_value (bp, 0, 1);
+}
+
+
+/* Pack all the non-pointer fields of the TS_REAL_CST structure of
+ expression EXPR into bitpack BP. */
+
+static void
+pack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
+{
+ unsigned i;
+ REAL_VALUE_TYPE r;
+
+ r = TREE_REAL_CST (expr);
+ bp_pack_value (bp, r.cl, 2);
+ bp_pack_value (bp, r.decimal, 1);
+ bp_pack_value (bp, r.sign, 1);
+ bp_pack_value (bp, r.signalling, 1);
+ bp_pack_value (bp, r.canonical, 1);
+ bp_pack_value (bp, r.uexp, EXP_BITS);
+ for (i = 0; i < SIGSZ; i++)
+ bp_pack_value (bp, r.sig[i], HOST_BITS_PER_LONG);
+}
+
+
+/* Pack all the non-pointer fields of the TS_FIXED_CST structure of
+ expression EXPR into bitpack BP. */
+
+static void
+pack_ts_fixed_cst_value_fields (struct bitpack_d *bp, tree expr)
+{
+ struct fixed_value fv = TREE_FIXED_CST (expr);
+ bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, fv.mode);
+ bp_pack_var_len_int (bp, fv.data.low);
+ bp_pack_var_len_int (bp, fv.data.high);
+}
+
+
+/* Pack all the non-pointer fields of the TS_DECL_COMMON structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_decl_common_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, DECL_MODE (expr));
+ bp_pack_value (bp, DECL_NONLOCAL (expr), 1);
+ bp_pack_value (bp, DECL_VIRTUAL_P (expr), 1);
+ bp_pack_value (bp, DECL_IGNORED_P (expr), 1);
+ bp_pack_value (bp, DECL_ABSTRACT (expr), 1);
+ bp_pack_value (bp, DECL_ARTIFICIAL (expr), 1);
+ bp_pack_value (bp, DECL_USER_ALIGN (expr), 1);
+ bp_pack_value (bp, DECL_PRESERVE_P (expr), 1);
+ bp_pack_value (bp, DECL_DEBUG_EXPR_IS_FROM (expr), 1);
+ bp_pack_value (bp, DECL_EXTERNAL (expr), 1);
+ bp_pack_value (bp, DECL_GIMPLE_REG_P (expr), 1);
+ bp_pack_var_len_unsigned (bp, DECL_ALIGN (expr));
+
+ if (TREE_CODE (expr) == LABEL_DECL)
+ {
+ /* Note that we do not write LABEL_DECL_UID. The reader will
+ always assume an initial value of -1 so that the
+ label_to_block_map is recreated by gimple_set_bb. */
+ bp_pack_value (bp, DECL_ERROR_ISSUED (expr), 1);
+ bp_pack_var_len_unsigned (bp, EH_LANDING_PAD_NR (expr));
+ }
+
+ if (TREE_CODE (expr) == FIELD_DECL)
+ {
+ bp_pack_value (bp, DECL_PACKED (expr), 1);
+ bp_pack_value (bp, DECL_NONADDRESSABLE_P (expr), 1);
+ bp_pack_value (bp, expr->decl_common.off_align, 8);
+ }
+
+ if (TREE_CODE (expr) == RESULT_DECL
+ || TREE_CODE (expr) == PARM_DECL
+ || TREE_CODE (expr) == VAR_DECL)
+ {
+ bp_pack_value (bp, DECL_BY_REFERENCE (expr), 1);
+ if (TREE_CODE (expr) == VAR_DECL
+ || TREE_CODE (expr) == PARM_DECL)
+ bp_pack_value (bp, DECL_HAS_VALUE_EXPR_P (expr), 1);
+ bp_pack_value (bp, DECL_RESTRICTED_P (expr), 1);
+ }
+}
+
+
+/* Pack all the non-pointer fields of the TS_DECL_WRTL structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_decl_wrtl_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_value (bp, DECL_REGISTER (expr), 1);
+}
+
+
+/* Pack all the non-pointer fields of the TS_DECL_WITH_VIS structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_decl_with_vis_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_value (bp, DECL_DEFER_OUTPUT (expr), 1);
+ bp_pack_value (bp, DECL_COMMON (expr), 1);
+ bp_pack_value (bp, DECL_DLLIMPORT_P (expr), 1);
+ bp_pack_value (bp, DECL_WEAK (expr), 1);
+ bp_pack_value (bp, DECL_SEEN_IN_BIND_EXPR_P (expr), 1);
+ bp_pack_value (bp, DECL_COMDAT (expr), 1);
+ bp_pack_value (bp, DECL_VISIBILITY (expr), 2);
+ bp_pack_value (bp, DECL_VISIBILITY_SPECIFIED (expr), 1);
+
+ if (TREE_CODE (expr) == VAR_DECL)
+ {
+ bp_pack_value (bp, DECL_HARD_REGISTER (expr), 1);
+ bp_pack_value (bp, DECL_IN_TEXT_SECTION (expr), 1);
+ bp_pack_value (bp, DECL_IN_CONSTANT_POOL (expr), 1);
+ bp_pack_value (bp, DECL_TLS_MODEL (expr), 3);
+ }
+
+ if (VAR_OR_FUNCTION_DECL_P (expr))
+ bp_pack_var_len_unsigned (bp, DECL_INIT_PRIORITY (expr));
+}
+
+
+/* Pack all the non-pointer fields of the TS_FUNCTION_DECL structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_function_decl_value_fields (struct bitpack_d *bp, tree expr)
+{
+ /* For normal/md builtins we only write the class and code, so they
+ should never be handled here. */
+ gcc_assert (!lto_stream_as_builtin_p (expr));
+
+ bp_pack_enum (bp, built_in_class, BUILT_IN_LAST,
+ DECL_BUILT_IN_CLASS (expr));
+ bp_pack_value (bp, DECL_STATIC_CONSTRUCTOR (expr), 1);
+ bp_pack_value (bp, DECL_STATIC_DESTRUCTOR (expr), 1);
+ bp_pack_value (bp, DECL_UNINLINABLE (expr), 1);
+ bp_pack_value (bp, DECL_POSSIBLY_INLINED (expr), 1);
+ bp_pack_value (bp, DECL_IS_NOVOPS (expr), 1);
+ bp_pack_value (bp, DECL_IS_RETURNS_TWICE (expr), 1);
+ bp_pack_value (bp, DECL_IS_MALLOC (expr), 1);
+ bp_pack_value (bp, DECL_IS_OPERATOR_NEW (expr), 1);
+ bp_pack_value (bp, DECL_DECLARED_INLINE_P (expr), 1);
+ bp_pack_value (bp, DECL_STATIC_CHAIN (expr), 1);
+ bp_pack_value (bp, DECL_NO_INLINE_WARNING_P (expr), 1);
+ bp_pack_value (bp, DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (expr), 1);
+ bp_pack_value (bp, DECL_NO_LIMIT_STACK (expr), 1);
+ bp_pack_value (bp, DECL_DISREGARD_INLINE_LIMITS (expr), 1);
+ bp_pack_value (bp, DECL_PURE_P (expr), 1);
+ bp_pack_value (bp, DECL_LOOPING_CONST_OR_PURE_P (expr), 1);
+ if (DECL_BUILT_IN_CLASS (expr) != NOT_BUILT_IN)
+ bp_pack_value (bp, DECL_FUNCTION_CODE (expr), 11);
+ if (DECL_STATIC_DESTRUCTOR (expr))
+ bp_pack_var_len_unsigned (bp, DECL_FINI_PRIORITY (expr));
+}
+
+
+/* Pack all the non-pointer fields of the TS_TYPE_COMMON structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_type_common_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_enum (bp, machine_mode, MAX_MACHINE_MODE, TYPE_MODE (expr));
+ bp_pack_value (bp, TYPE_STRING_FLAG (expr), 1);
+ bp_pack_value (bp, TYPE_NO_FORCE_BLK (expr), 1);
+ bp_pack_value (bp, TYPE_NEEDS_CONSTRUCTING (expr), 1);
+ if (RECORD_OR_UNION_TYPE_P (expr))
+ bp_pack_value (bp, TYPE_TRANSPARENT_AGGR (expr), 1);
+ bp_pack_value (bp, TYPE_PACKED (expr), 1);
+ bp_pack_value (bp, TYPE_RESTRICT (expr), 1);
+ bp_pack_value (bp, TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr), 2);
+ bp_pack_value (bp, TYPE_USER_ALIGN (expr), 1);
+ bp_pack_value (bp, TYPE_READONLY (expr), 1);
+ bp_pack_var_len_unsigned (bp, TYPE_PRECISION (expr));
+ bp_pack_var_len_unsigned (bp, TYPE_ALIGN (expr));
+ bp_pack_var_len_int (bp, TYPE_ALIAS_SET (expr) == 0 ? 0 : -1);
+}
+
+
+/* Pack all the non-pointer fields of the TS_BLOCK structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_block_value_fields (struct bitpack_d *bp, tree expr)
+{
+ bp_pack_value (bp, BLOCK_ABSTRACT (expr), 1);
+ /* BLOCK_NUMBER is recomputed. */
+}
+
+/* Pack all the non-pointer fields of the TS_TRANSLATION_UNIT_DECL structure
+ of expression EXPR into bitpack BP. */
+
+static void
+pack_ts_translation_unit_decl_value_fields (struct bitpack_d *bp ATTRIBUTE_UNUSED, tree expr ATTRIBUTE_UNUSED)
+{
+}
+
+/* Pack all the non-pointer fields in EXPR into a bit pack. */
+
+static void
+pack_value_fields (struct bitpack_d *bp, tree expr)
+{
+ enum tree_code code;
+
+ code = TREE_CODE (expr);
+
+ /* Note that all these functions are highly sensitive to changes in
+ the types and sizes of each of the fields being packed. */
+ pack_ts_base_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_REAL_CST))
+ pack_ts_real_cst_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FIXED_CST))
+ pack_ts_fixed_cst_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
+ pack_ts_decl_common_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
+ pack_ts_decl_wrtl_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ pack_ts_decl_with_vis_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
+ pack_ts_function_decl_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
+ pack_ts_type_common_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
+ pack_ts_block_value_fields (bp, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
+ pack_ts_translation_unit_decl_value_fields (bp, expr);
+
+ if (streamer_hooks.pack_value_fields)
+ streamer_hooks.pack_value_fields (bp, expr);
+}
+
+
+/* If REF_P is true, emit a reference to EXPR in output block OB,
+ otherwise emit the physical representation of EXPR in OB. */
+
+static inline void
+lto_output_tree_or_ref (struct output_block *ob, tree expr, bool ref_p)
+{
+ if (ref_p)
+ lto_output_tree_ref (ob, expr);
+ else
+ lto_output_tree (ob, expr, false);
+}
+
+
+/* Write the code and class of builtin EXPR to output block OB. IX is
+ the index into the streamer cache where EXPR is stored.*/
+
+static void
+lto_output_builtin_tree (struct output_block *ob, tree expr)
+{
+ gcc_assert (lto_stream_as_builtin_p (expr));
+
+ if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD
+ && !targetm.builtin_decl)
+ sorry ("gimple bytecode streams do not support machine specific builtin "
+ "functions on this target");
+
+ output_record_start (ob, LTO_builtin_decl);
+ lto_output_enum (ob->main_stream, built_in_class, BUILT_IN_LAST,
+ DECL_BUILT_IN_CLASS (expr));
+ output_uleb128 (ob, DECL_FUNCTION_CODE (expr));
+
+ if (DECL_ASSEMBLER_NAME_SET_P (expr))
+ {
+ /* When the assembler name of a builtin gets a user name,
+ the new name is always prefixed with '*' by
+ set_builtin_user_assembler_name. So, to prevent the
+ reader side from adding a second '*', we omit it here. */
+ const char *str = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (expr));
+ if (strlen (str) > 1 && str[0] == '*')
+ lto_output_string (ob, ob->main_stream, &str[1], true);
+ else
+ lto_output_string (ob, ob->main_stream, NULL, true);
+ }
+ else
+ lto_output_string (ob, ob->main_stream, NULL, true);
+}
+
+
+/* GIMPLE hook for writing GIMPLE-specific parts of trees. OB, EXPR
+ and REF_P are as in lto_write_tree. */
+
+void
+lto_streamer_write_tree (struct output_block *ob, tree expr, bool ref_p)
+{
+ if (DECL_P (expr)
+ && TREE_CODE (expr) != FUNCTION_DECL
+ && TREE_CODE (expr) != TRANSLATION_UNIT_DECL)
+ {
+ /* Handle DECL_INITIAL for symbols. */
+ tree initial = DECL_INITIAL (expr);
+ if (TREE_CODE (expr) == VAR_DECL
+ && (TREE_STATIC (expr) || DECL_EXTERNAL (expr))
+ && initial)
+ {
+ lto_varpool_encoder_t varpool_encoder;
+ struct varpool_node *vnode;
+
+ varpool_encoder = ob->decl_state->varpool_node_encoder;
+ vnode = varpool_get_node (expr);
+ if (!vnode)
+ initial = error_mark_node;
+ else if (!lto_varpool_encoder_encode_initializer_p (varpool_encoder,
+ vnode))
+ initial = NULL;
+ }
+
+ lto_output_tree_or_ref (ob, initial, ref_p);
+ }
+}
+
+
+/* Emit the chain of tree nodes starting at T. OB is the output block
+ to write to. REF_P is true if chain elements should be emitted
+ as references. */
+
+static void
+lto_output_chain (struct output_block *ob, tree t, bool ref_p)
+{
+ int i, count;
+
+ count = list_length (t);
+ output_sleb128 (ob, count);
+ for (i = 0; i < count; i++)
+ {
+ tree saved_chain;
+
+ /* Clear TREE_CHAIN to avoid blindly recursing into the rest
+ of the list. */
+ saved_chain = TREE_CHAIN (t);
+ TREE_CHAIN (t) = NULL_TREE;
+
+ lto_output_tree_or_ref (ob, t, ref_p);
+
+ TREE_CHAIN (t) = saved_chain;
+ t = TREE_CHAIN (t);
+ }
+}
+
+
+/* Write all pointer fields in the TS_COMMON structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_common_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ if (TREE_CODE (expr) != IDENTIFIER_NODE)
+ lto_output_tree_or_ref (ob, TREE_TYPE (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_VECTOR structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_vector_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_chain (ob, TREE_VECTOR_CST_ELTS (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_COMPLEX structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_complex_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, TREE_REALPART (expr), ref_p);
+ lto_output_tree_or_ref (ob, TREE_IMAGPART (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_DECL_MINIMAL structure of EXPR
+ to output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_decl_minimal_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, DECL_NAME (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_CONTEXT (expr), ref_p);
+ lto_output_location (ob, DECL_SOURCE_LOCATION (expr));
+}
+
+
+/* Write all pointer fields in the TS_DECL_COMMON structure of EXPR to
+ output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_decl_common_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, DECL_SIZE (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_SIZE_UNIT (expr), ref_p);
+
+ /* Note, DECL_INITIAL is not handled here. Since DECL_INITIAL needs
+ special handling in LTO, it must be handled by streamer hooks. */
+
+ lto_output_tree_or_ref (ob, DECL_ATTRIBUTES (expr), ref_p);
+
+ /* Do not stream DECL_ABSTRACT_ORIGIN. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+
+ if (TREE_CODE (expr) == PARM_DECL)
+ lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
+
+ if ((TREE_CODE (expr) == VAR_DECL
+ || TREE_CODE (expr) == PARM_DECL)
+ && DECL_HAS_VALUE_EXPR_P (expr))
+ lto_output_tree_or_ref (ob, DECL_VALUE_EXPR (expr), ref_p);
+
+ if (TREE_CODE (expr) == VAR_DECL)
+ lto_output_tree_or_ref (ob, DECL_DEBUG_EXPR (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_DECL_NON_COMMON structure of
+ EXPR to output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_decl_non_common_tree_pointers (struct output_block *ob,
+ tree expr, bool ref_p)
+{
+ if (TREE_CODE (expr) == FUNCTION_DECL)
+ {
+ lto_output_tree_or_ref (ob, DECL_ARGUMENTS (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_RESULT (expr), ref_p);
+ }
+ lto_output_tree_or_ref (ob, DECL_VINDEX (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_DECL_WITH_VIS structure of EXPR
+ to output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_decl_with_vis_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ /* Make sure we don't inadvertently set the assembler name. */
+ if (DECL_ASSEMBLER_NAME_SET_P (expr))
+ lto_output_tree_or_ref (ob, DECL_ASSEMBLER_NAME (expr), ref_p);
+ else
+ output_record_start (ob, LTO_null);
+
+ lto_output_tree_or_ref (ob, DECL_SECTION_NAME (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_COMDAT_GROUP (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_FIELD_DECL structure of EXPR to
+ output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_field_decl_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, DECL_FIELD_OFFSET (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_BIT_FIELD_TYPE (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_QUALIFIER (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_FIELD_BIT_OFFSET (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_FCONTEXT (expr), ref_p);
+ lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_FUNCTION_DECL structure of EXPR
+ to output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_function_decl_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ /* DECL_STRUCT_FUNCTION is handled by lto_output_function. FIXME lto,
+ maybe it should be handled here? */
+ lto_output_tree_or_ref (ob, DECL_FUNCTION_PERSONALITY (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_FUNCTION_SPECIFIC_TARGET (expr), ref_p);
+ lto_output_tree_or_ref (ob, DECL_FUNCTION_SPECIFIC_OPTIMIZATION (expr),
+ ref_p);
+}
+
+
+/* Write all pointer fields in the TS_TYPE_COMMON structure of EXPR to
+ output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_type_common_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, TYPE_SIZE (expr), ref_p);
+ lto_output_tree_or_ref (ob, TYPE_SIZE_UNIT (expr), ref_p);
+ lto_output_tree_or_ref (ob, TYPE_ATTRIBUTES (expr), ref_p);
+ lto_output_tree_or_ref (ob, TYPE_NAME (expr), ref_p);
+ /* Do not stream TYPE_POINTER_TO or TYPE_REFERENCE_TO. They will be
+ reconstructed during fixup. */
+ /* Do not stream TYPE_NEXT_VARIANT, we reconstruct the variant lists
+ during fixup. */
+ lto_output_tree_or_ref (ob, TYPE_MAIN_VARIANT (expr), ref_p);
+ lto_output_tree_or_ref (ob, TYPE_CONTEXT (expr), ref_p);
+ /* TYPE_CANONICAL is re-computed during type merging, so no need
+ to stream it here. */
+ lto_output_tree_or_ref (ob, TYPE_STUB_DECL (expr), ref_p);
+}
+
+/* Write all pointer fields in the TS_TYPE_NON_COMMON structure of EXPR
+ to output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_type_non_common_tree_pointers (struct output_block *ob,
+ tree expr, bool ref_p)
+{
+ if (TREE_CODE (expr) == ENUMERAL_TYPE)
+ lto_output_tree_or_ref (ob, TYPE_VALUES (expr), ref_p);
+ else if (TREE_CODE (expr) == ARRAY_TYPE)
+ lto_output_tree_or_ref (ob, TYPE_DOMAIN (expr), ref_p);
+ else if (RECORD_OR_UNION_TYPE_P (expr))
+ lto_output_tree_or_ref (ob, TYPE_FIELDS (expr), ref_p);
+ else if (TREE_CODE (expr) == FUNCTION_TYPE
+ || TREE_CODE (expr) == METHOD_TYPE)
+ lto_output_tree_or_ref (ob, TYPE_ARG_TYPES (expr), ref_p);
+
+ if (!POINTER_TYPE_P (expr))
+ lto_output_tree_or_ref (ob, TYPE_MINVAL (expr), ref_p);
+ lto_output_tree_or_ref (ob, TYPE_MAXVAL (expr), ref_p);
+ if (RECORD_OR_UNION_TYPE_P (expr))
+ lto_output_tree_or_ref (ob, TYPE_BINFO (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_LIST structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_list_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ lto_output_tree_or_ref (ob, TREE_PURPOSE (expr), ref_p);
+ lto_output_tree_or_ref (ob, TREE_VALUE (expr), ref_p);
+ lto_output_chain (ob, TREE_CHAIN (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_VEC structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_vec_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
+{
+ int i;
+
+ /* Note that the number of slots for EXPR has already been emitted
+ in EXPR's header (see lto_output_tree_header). */
+ for (i = 0; i < TREE_VEC_LENGTH (expr); i++)
+ lto_output_tree_or_ref (ob, TREE_VEC_ELT (expr, i), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_EXP structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_exp_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
+{
+ int i;
+
+ output_sleb128 (ob, TREE_OPERAND_LENGTH (expr));
+ for (i = 0; i < TREE_OPERAND_LENGTH (expr); i++)
+ lto_output_tree_or_ref (ob, TREE_OPERAND (expr, i), ref_p);
+ lto_output_location (ob, EXPR_LOCATION (expr));
+ lto_output_tree_or_ref (ob, TREE_BLOCK (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_BLOCK structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_block_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ /* Do not stream BLOCK_SOURCE_LOCATION. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+ lto_output_chain (ob, BLOCK_VARS (expr), ref_p);
+
+ /* Do not stream BLOCK_NONLOCALIZED_VARS. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+
+ lto_output_tree_or_ref (ob, BLOCK_SUPERCONTEXT (expr), ref_p);
+ /* Do not stream BLOCK_ABSTRACT_ORIGIN. We cannot handle debug information
+ for early inlining so drop it on the floor instead of ICEing in
+ dwarf2out.c. */
+ lto_output_tree_or_ref (ob, BLOCK_FRAGMENT_ORIGIN (expr), ref_p);
+ lto_output_tree_or_ref (ob, BLOCK_FRAGMENT_CHAIN (expr), ref_p);
+ /* Do not output BLOCK_SUBBLOCKS. Instead on streaming-in this
+ list is re-constructed from BLOCK_SUPERCONTEXT. */
+}
+
+
+/* Write all pointer fields in the TS_BINFO structure of EXPR to output
+ block OB. If REF_P is true, write a reference to EXPR's pointer
+ fields. */
+
+static void
+lto_output_ts_binfo_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ unsigned i;
+ tree t;
+
+ /* Note that the number of BINFO slots has already been emitted in
+ EXPR's header (see lto_output_tree_header) because this length
+ is needed to build the empty BINFO node on the reader side. */
+ FOR_EACH_VEC_ELT (tree, BINFO_BASE_BINFOS (expr), i, t)
+ lto_output_tree_or_ref (ob, t, ref_p);
+ output_record_start (ob, LTO_null);
+
+ lto_output_tree_or_ref (ob, BINFO_OFFSET (expr), ref_p);
+ lto_output_tree_or_ref (ob, BINFO_VTABLE (expr), ref_p);
+ /* BINFO_VIRTUALS is used to drive type based devirtualizatoin. It often links
+ together large portions of programs making it harder to partition. Becuase
+ devirtualization is interesting before inlining, only, there is no real
+ need to ship it into ltrans partition. */
+ lto_output_tree_or_ref (ob, flag_wpa ? NULL : BINFO_VIRTUALS (expr), ref_p);
+ lto_output_tree_or_ref (ob, BINFO_VPTR_FIELD (expr), ref_p);
+
+ output_uleb128 (ob, VEC_length (tree, BINFO_BASE_ACCESSES (expr)));
+ FOR_EACH_VEC_ELT (tree, BINFO_BASE_ACCESSES (expr), i, t)
+ lto_output_tree_or_ref (ob, t, ref_p);
+
+ lto_output_tree_or_ref (ob, BINFO_INHERITANCE_CHAIN (expr), ref_p);
+ lto_output_tree_or_ref (ob, BINFO_SUBVTT_INDEX (expr), ref_p);
+ lto_output_tree_or_ref (ob, BINFO_VPTR_INDEX (expr), ref_p);
+}
+
+
+/* Write all pointer fields in the TS_CONSTRUCTOR structure of EXPR to
+ output block OB. If REF_P is true, write a reference to EXPR's
+ pointer fields. */
+
+static void
+lto_output_ts_constructor_tree_pointers (struct output_block *ob, tree expr,
+ bool ref_p)
+{
+ unsigned i;
+ tree index, value;
+
+ output_uleb128 (ob, CONSTRUCTOR_NELTS (expr));
+ FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (expr), i, index, value)
+ {
+ lto_output_tree_or_ref (ob, index, ref_p);
+ lto_output_tree_or_ref (ob, value, ref_p);
+ }
+}
+
+/* Write a TS_TARGET_OPTION tree in EXPR to OB. */
+
+static void
+lto_output_ts_target_option (struct output_block *ob, tree expr)
+{
+ struct cl_target_option *t = TREE_TARGET_OPTION (expr);
+ struct bitpack_d bp;
+ unsigned i, len;
+
+ /* The cl_target_option is target specific and generated by the options
+ awk script, so we just recreate a byte-by-byte copy here. */
+
+ bp = bitpack_create (ob->main_stream);
+ len = sizeof (struct cl_target_option);
+ for (i = 0; i < len; i++)
+ bp_pack_value (&bp, ((unsigned char *)t)[i], 8);
+ /* Catch struct size mismatches between reader and writer. */
+ bp_pack_value (&bp, 0x12345678, 32);
+ lto_output_bitpack (&bp);
+}
+
+/* Write a TS_TRANSLATION_UNIT_DECL tree in EXPR to OB. */
+
+static void
+lto_output_ts_translation_unit_decl_tree_pointers (struct output_block *ob,
+ tree expr)
+{
+ lto_output_string (ob, ob->main_stream,
+ TRANSLATION_UNIT_LANGUAGE (expr), true);
+}
+
+/* Helper for lto_output_tree. Write all pointer fields in EXPR to output
+ block OB. If REF_P is true, the leaves of EXPR are emitted as
+ references. */
+
+static void
+lto_output_tree_pointers (struct output_block *ob, tree expr, bool ref_p)
+{
+ enum tree_code code;
+
+ code = TREE_CODE (expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
+ lto_output_ts_common_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_VECTOR))
+ lto_output_ts_vector_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_COMPLEX))
+ lto_output_ts_complex_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_MINIMAL))
+ lto_output_ts_decl_minimal_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
+ lto_output_ts_decl_common_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
+ lto_output_ts_decl_non_common_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ lto_output_ts_decl_with_vis_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FIELD_DECL))
+ lto_output_ts_field_decl_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_FUNCTION_DECL))
+ lto_output_ts_function_decl_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_COMMON))
+ lto_output_ts_type_common_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TYPE_NON_COMMON))
+ lto_output_ts_type_non_common_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_LIST))
+ lto_output_ts_list_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_VEC))
+ lto_output_ts_vec_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_EXP))
+ lto_output_ts_exp_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BLOCK))
+ lto_output_ts_block_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
+ lto_output_ts_binfo_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_CONSTRUCTOR))
+ lto_output_ts_constructor_tree_pointers (ob, expr, ref_p);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TARGET_OPTION))
+ lto_output_ts_target_option (ob, expr);
+
+ if (CODE_CONTAINS_STRUCT (code, TS_TRANSLATION_UNIT_DECL))
+ lto_output_ts_translation_unit_decl_tree_pointers (ob, expr);
+}
+
+
+/* Emit header information for tree EXPR to output block OB. The header
+ contains everything needed to instantiate an empty skeleton for
+ EXPR on the reading side. IX is the index into the streamer cache
+ where EXPR is stored. REF_P is as in lto_output_tree. */
+
+static void
+lto_output_tree_header (struct output_block *ob, tree expr)
+{
+ enum LTO_tags tag;
+ enum tree_code code;
+
+ /* We should not see any tree nodes not handled by the streamer. */
+ code = TREE_CODE (expr);
+ if (!streamer_hooks.is_streamable (expr))
+ internal_error ("tree code %qs is not supported in %s streams",
+ tree_code_name[code], streamer_hooks.name);
+
+ /* The header of a tree node consists of its tag, the size of
+ the node, and any other information needed to instantiate
+ EXPR on the reading side (such as the number of slots in
+ variable sized nodes). */
+ tag = lto_tree_code_to_tag (code);
+ output_record_start (ob, tag);
+
+ /* The following will cause bootstrap miscomparisons. Enable with care. */
+#ifdef LTO_STREAMER_DEBUG
+ /* This is used mainly for debugging purposes. When the reader
+ and the writer do not agree on a streamed node, the pointer
+ value for EXPR can be used to track down the differences in
+ the debugger. */
+ gcc_assert ((HOST_WIDEST_INT) (intptr_t) expr == (intptr_t) expr);
+ output_sleb128 (ob, (HOST_WIDEST_INT) (intptr_t) expr);
+#endif
+
+ /* The text in strings and identifiers are completely emitted in
+ the header. */
+ if (CODE_CONTAINS_STRUCT (code, TS_STRING))
+ output_string_cst (ob, ob->main_stream, expr);
+ else if (CODE_CONTAINS_STRUCT (code, TS_IDENTIFIER))
+ output_identifier (ob, ob->main_stream, expr);
+ else if (CODE_CONTAINS_STRUCT (code, TS_VEC))
+ output_sleb128 (ob, TREE_VEC_LENGTH (expr));
+ else if (CODE_CONTAINS_STRUCT (code, TS_BINFO))
+ output_uleb128 (ob, BINFO_N_BASE_BINFOS (expr));
+
+ /* Allow the streamer to write any streamer-specific information
+ needed to instantiate the node when reading. */
+ if (streamer_hooks.output_tree_header)
+ streamer_hooks.output_tree_header (ob, expr);
+}
+
+
+/* Emit the integer constant CST to output block OB. If REF_P is true,
+ CST's type will be emitted as a reference. */
+
+static void
+lto_output_integer_cst (struct output_block *ob, tree cst, bool ref_p)
+{
+ output_record_start (ob, lto_tree_code_to_tag (INTEGER_CST));
+ lto_output_tree_or_ref (ob, TREE_TYPE (cst), ref_p);
+ lto_output_1_stream (ob->main_stream, TREE_OVERFLOW_P (cst));
+ output_uleb128 (ob, TREE_INT_CST_LOW (cst));
+ output_uleb128 (ob, TREE_INT_CST_HIGH (cst));
+}
+
+
+/* Write a physical representation of tree node EXPR to output block
+ OB. If REF_P is true, the leaves of EXPR are emitted as references
+ via lto_output_tree_ref. IX is the index into the streamer cache
+ where EXPR is stored. */
+
+static void
+lto_write_tree (struct output_block *ob, tree expr, bool ref_p)
+{
+ struct bitpack_d bp;
+
+ /* Write the header, containing everything needed to materialize
+ EXPR on the reading side. */
+ lto_output_tree_header (ob, expr);
+
+ /* Pack all the non-pointer fields in EXPR into a bitpack and write
+ the resulting bitpack. */
+ bp = bitpack_create (ob->main_stream);
+ pack_value_fields (&bp, expr);
+ lto_output_bitpack (&bp);
+
+ /* Write all the pointer fields in EXPR. */
+ lto_output_tree_pointers (ob, expr, ref_p);
+
+ /* Call back into the streaming module to see if it needs to write
+ anything that was not written by the common streamer. */
+ if (streamer_hooks.write_tree)
+ streamer_hooks.write_tree (ob, expr, ref_p);
+
+ /* Mark the end of EXPR. */
+ output_zero (ob);
+}
+
+
+/* Emit the physical representation of tree node EXPR to output block
+ OB. If REF_P is true, the leaves of EXPR are emitted as references
+ via lto_output_tree_ref. */
+
+void
+lto_output_tree (struct output_block *ob, tree expr, bool ref_p)
+{
+ unsigned ix;
+ bool existed_p;
+
+ if (expr == NULL_TREE)
+ {
+ output_record_start (ob, LTO_null);
+ return;
+ }
+
+ /* INTEGER_CST nodes are special because they need their original type
+ to be materialized by the reader (to implement TYPE_CACHED_VALUES). */
+ if (TREE_CODE (expr) == INTEGER_CST)
+ {
+ lto_output_integer_cst (ob, expr, ref_p);
+ return;
+ }
+
+ existed_p = lto_streamer_cache_insert (ob->writer_cache, expr, &ix);
+ if (existed_p)
+ {
+ /* If a node has already been streamed out, make sure that
+ we don't write it more than once. Otherwise, the reader
+ will instantiate two different nodes for the same object. */
+ output_record_start (ob, LTO_tree_pickle_reference);
+ output_uleb128 (ob, ix);
+ lto_output_enum (ob->main_stream, LTO_tags, LTO_NUM_TAGS,
+ lto_tree_code_to_tag (TREE_CODE (expr)));
+ }
+ else if (lto_stream_as_builtin_p (expr))
+ {
+ /* MD and NORMAL builtins do not need to be written out
+ completely as they are always instantiated by the
+ compiler on startup. The only builtins that need to
+ be written out are BUILT_IN_FRONTEND. For all other
+ builtins, we simply write the class and code. */
+ lto_output_builtin_tree (ob, expr);
+ }
+ else
+ {
+ /* This is the first time we see EXPR, write its fields
+ to OB. */
+ lto_write_tree (ob, expr, ref_p);
+ }
+}
--- /dev/null
+/* Miscellaneous utilities for tree streaming. Things that are used
+ in both input and output are here.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "streamer-hooks.h"
+#include "tree-streamer.h"
+
+/* Check that all the TS_* structures handled by the lto_output_* and
+ lto_input_* routines are exactly ALL the structures defined in
+ treestruct.def. */
+
+void
+check_handled_ts_structures (void)
+{
+ bool handled_p[LAST_TS_ENUM];
+ unsigned i;
+
+ memset (&handled_p, 0, sizeof (handled_p));
+
+ /* These are the TS_* structures that are either handled or
+ explicitly ignored by the streamer routines. */
+ handled_p[TS_BASE] = true;
+ handled_p[TS_TYPED] = true;
+ handled_p[TS_COMMON] = true;
+ handled_p[TS_INT_CST] = true;
+ handled_p[TS_REAL_CST] = true;
+ handled_p[TS_FIXED_CST] = true;
+ handled_p[TS_VECTOR] = true;
+ handled_p[TS_STRING] = true;
+ handled_p[TS_COMPLEX] = true;
+ handled_p[TS_IDENTIFIER] = true;
+ handled_p[TS_DECL_MINIMAL] = true;
+ handled_p[TS_DECL_COMMON] = true;
+ handled_p[TS_DECL_WRTL] = true;
+ handled_p[TS_DECL_NON_COMMON] = true;
+ handled_p[TS_DECL_WITH_VIS] = true;
+ handled_p[TS_FIELD_DECL] = true;
+ handled_p[TS_VAR_DECL] = true;
+ handled_p[TS_PARM_DECL] = true;
+ handled_p[TS_LABEL_DECL] = true;
+ handled_p[TS_RESULT_DECL] = true;
+ handled_p[TS_CONST_DECL] = true;
+ handled_p[TS_TYPE_DECL] = true;
+ handled_p[TS_FUNCTION_DECL] = true;
+ handled_p[TS_TYPE_COMMON] = true;
+ handled_p[TS_TYPE_WITH_LANG_SPECIFIC] = true;
+ handled_p[TS_TYPE_NON_COMMON] = true;
+ handled_p[TS_LIST] = true;
+ handled_p[TS_VEC] = true;
+ handled_p[TS_EXP] = true;
+ handled_p[TS_SSA_NAME] = true;
+ handled_p[TS_BLOCK] = true;
+ handled_p[TS_BINFO] = true;
+ handled_p[TS_STATEMENT_LIST] = true;
+ handled_p[TS_CONSTRUCTOR] = true;
+ handled_p[TS_OMP_CLAUSE] = true;
+ handled_p[TS_OPTIMIZATION] = true;
+ handled_p[TS_TARGET_OPTION] = true;
+ handled_p[TS_TRANSLATION_UNIT_DECL] = true;
+
+ /* Anything not marked above will trigger the following assertion.
+ If this assertion triggers, it means that there is a new TS_*
+ structure that should be handled by the streamer. */
+ for (i = 0; i < LAST_TS_ENUM; i++)
+ gcc_assert (handled_p[i]);
+}
+
+
+/* Helper for lto_streamer_cache_insert_1. Add T to CACHE->NODES at
+ slot IX. */
+
+static void
+lto_streamer_cache_add_to_node_array (struct lto_streamer_cache_d *cache,
+ unsigned ix, tree t)
+{
+ /* Make sure we're either replacing an old element or
+ appending consecutively. */
+ gcc_assert (ix <= VEC_length (tree, cache->nodes));
+
+ if (ix == VEC_length (tree, cache->nodes))
+ VEC_safe_push (tree, heap, cache->nodes, t);
+ else
+ VEC_replace (tree, cache->nodes, ix, t);
+}
+
+
+/* Helper for lto_streamer_cache_insert and lto_streamer_cache_insert_at.
+ CACHE, T, and IX_P are as in lto_streamer_cache_insert.
+
+ If INSERT_AT_NEXT_SLOT_P is true, T is inserted at the next available
+ slot in the cache. Otherwise, T is inserted at the position indicated
+ in *IX_P.
+
+ If T already existed in CACHE, return true. Otherwise,
+ return false. */
+
+static bool
+lto_streamer_cache_insert_1 (struct lto_streamer_cache_d *cache,
+ tree t, unsigned *ix_p,
+ bool insert_at_next_slot_p)
+{
+ void **slot;
+ unsigned ix;
+ bool existed_p;
+
+ gcc_assert (t);
+
+ slot = pointer_map_insert (cache->node_map, t);
+ if (!*slot)
+ {
+ /* Determine the next slot to use in the cache. */
+ if (insert_at_next_slot_p)
+ ix = VEC_length (tree, cache->nodes);
+ else
+ ix = *ix_p;
+ *slot = (void *)(size_t) (ix + 1);
+
+ lto_streamer_cache_add_to_node_array (cache, ix, t);
+
+ /* Indicate that the item was not present in the cache. */
+ existed_p = false;
+ }
+ else
+ {
+ ix = (size_t) *slot - 1;
+
+ if (!insert_at_next_slot_p && ix != *ix_p)
+ {
+ /* If the caller wants to insert T at a specific slot
+ location, and ENTRY->TO does not match *IX_P, add T to
+ the requested location slot. */
+ ix = *ix_p;
+ lto_streamer_cache_add_to_node_array (cache, ix, t);
+ }
+
+ /* Indicate that T was already in the cache. */
+ existed_p = true;
+ }
+
+ if (ix_p)
+ *ix_p = ix;
+
+ return existed_p;
+}
+
+
+/* Insert tree node T in CACHE. If T already existed in the cache
+ return true. Otherwise, return false.
+
+ If IX_P is non-null, update it with the index into the cache where
+ T has been stored. */
+
+bool
+lto_streamer_cache_insert (struct lto_streamer_cache_d *cache, tree t,
+ unsigned *ix_p)
+{
+ return lto_streamer_cache_insert_1 (cache, t, ix_p, true);
+}
+
+
+/* Insert tree node T in CACHE at slot IX. If T already
+ existed in the cache return true. Otherwise, return false. */
+
+bool
+lto_streamer_cache_insert_at (struct lto_streamer_cache_d *cache,
+ tree t, unsigned ix)
+{
+ return lto_streamer_cache_insert_1 (cache, t, &ix, false);
+}
+
+
+/* Appends tree node T to CACHE, even if T already existed in it. */
+
+void
+lto_streamer_cache_append (struct lto_streamer_cache_d *cache, tree t)
+{
+ unsigned ix = VEC_length (tree, cache->nodes);
+ lto_streamer_cache_insert_1 (cache, t, &ix, false);
+}
+
+/* Return true if tree node T exists in CACHE, otherwise false. If IX_P is
+ not NULL, write to *IX_P the index into the cache where T is stored
+ ((unsigned)-1 if T is not found). */
+
+bool
+lto_streamer_cache_lookup (struct lto_streamer_cache_d *cache, tree t,
+ unsigned *ix_p)
+{
+ void **slot;
+ bool retval;
+ unsigned ix;
+
+ gcc_assert (t);
+
+ slot = pointer_map_contains (cache->node_map, t);
+ if (slot == NULL)
+ {
+ retval = false;
+ ix = -1;
+ }
+ else
+ {
+ retval = true;
+ ix = (size_t) *slot - 1;
+ }
+
+ if (ix_p)
+ *ix_p = ix;
+
+ return retval;
+}
+
+
+/* Return the tree node at slot IX in CACHE. */
+
+tree
+lto_streamer_cache_get (struct lto_streamer_cache_d *cache, unsigned ix)
+{
+ gcc_assert (cache);
+
+ /* Make sure we're not requesting something we don't have. */
+ gcc_assert (ix < VEC_length (tree, cache->nodes));
+
+ return VEC_index (tree, cache->nodes, ix);
+}
+
+/* Create a cache of pickled nodes. */
+
+struct lto_streamer_cache_d *
+lto_streamer_cache_create (void)
+{
+ struct lto_streamer_cache_d *cache;
+
+ cache = XCNEW (struct lto_streamer_cache_d);
+
+ cache->node_map = pointer_map_create ();
+
+ /* Load all the well-known tree nodes that are always created by
+ the compiler on startup. This prevents writing them out
+ unnecessarily. */
+ streamer_hooks.preload_common_nodes (cache);
+
+ return cache;
+}
+
+
+/* Delete the streamer cache C. */
+
+void
+lto_streamer_cache_delete (struct lto_streamer_cache_d *c)
+{
+ if (c == NULL)
+ return;
+
+ pointer_map_destroy (c->node_map);
+ VEC_free (tree, heap, c->nodes);
+ free (c);
+}
--- /dev/null
+/* Data structures and functions for streaming trees.
+
+ Copyright 2011 Free Software Foundation, Inc.
+ Contributed by Diego Novillo <dnovillo@google.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_TREE_STREAMER_H
+#define GCC_TREE_STREAMER_H
+
+#include "tree.h"
+#include "lto-streamer.h"
+
+/* Cache of pickled nodes. Used to avoid writing the same node more
+ than once. The first time a tree node is streamed out, it is
+ entered in this cache. Subsequent references to the same node are
+ resolved by looking it up in this cache.
+
+ This is used in two ways:
+
+ - On the writing side, the first time T is added to STREAMER_CACHE,
+ a new reference index is created for T and T is emitted on the
+ stream. If T needs to be emitted again to the stream, instead of
+ pickling it again, the reference index is emitted.
+
+ - On the reading side, the first time T is read from the stream, it
+ is reconstructed in memory and a new reference index created for
+ T. The reconstructed T is inserted in some array so that when
+ the reference index for T is found in the input stream, it can be
+ used to look up into the array to get the reconstructed T. */
+struct lto_streamer_cache_d
+{
+ /* The mapping between tree nodes and slots into the nodes array. */
+ struct pointer_map_t *node_map;
+
+ /* The nodes pickled so far. */
+ VEC(tree,heap) *nodes;
+};
+
+/* In tree-streamer-in.c. */
+tree input_string_cst (struct data_in *, struct lto_input_block *);
+tree lto_input_tree (struct lto_input_block *, struct data_in *);
+void lto_streamer_read_tree (struct lto_input_block *,
+ struct data_in *, tree);
+
+/* In tree-streamer-out.c. */
+void lto_streamer_write_tree (struct output_block *, tree, bool);
+
+/* In tree-streamer.c. */
+void check_handled_ts_structures (void);
+bool lto_streamer_cache_insert (struct lto_streamer_cache_d *, tree,
+ unsigned *);
+bool lto_streamer_cache_insert_at (struct lto_streamer_cache_d *, tree,
+ unsigned);
+void lto_streamer_cache_append (struct lto_streamer_cache_d *, tree);
+bool lto_streamer_cache_lookup (struct lto_streamer_cache_d *, tree,
+ unsigned *);
+tree lto_streamer_cache_get (struct lto_streamer_cache_d *, unsigned);
+struct lto_streamer_cache_d *lto_streamer_cache_create (void);
+void lto_streamer_cache_delete (struct lto_streamer_cache_d *);
+
+#endif /* GCC_TREE_STREAMER_H */
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