gcc/ChangeLog

   1 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
   2
   3         * c-typeck.c (build_c_cast): Always warn when casting
   4         from a pointer to an integer of different size, even if
   5         the node was constant.
   6
   7 2006-01-05  Richard Guenther  <rguenther@suse.de>
   8
   9         PR tree-optimization/22555
  10         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
  11         if one structure field is an array.
  12         * tree-ssa-operands.c (get_expr_operands): Continue scanning
  13         operands even if we found a subvar, but ignore VOPs in this
  14         case.
  15         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
  16         for renaming.
  17         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
  18
  19 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
  20
  21         PR middle-end/24998
  22         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
  23
  24 2006-01-05  Richard Guenther  <rguenther@suse.de>
  25             Diego Novillo  <dnovillo@redhat.com>
  26
  27         * tree-pass.h (TODO_remove_unused_locals): Define.
  28         * gimple-low.c (expand_var_p, remove_useless_vars,
  29         pass_remove_useless_vars): Remove.  Update all users.
  30         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
  31         (remove_unused_locals): New function.
  32         * tree-flow.h (remove_unused_locals): Declare.
  33         * passes.c (execute_todo): Call remove_unused_locals if
  34         TODO_remove_unused_locals is set.
  35         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
  36         * tree-ssa-dce.c (pass_dce): Likewise.
  37         * tree-outof-ssa.c (pass_del_ssa): Likewise.
  38
  39 2006-01-05  Richard Guenther  <rguenther@suse.de>
  40
  41         * tree-flow.h (struct fieldoff): Decompose field to
  42         type, size and decl.
  43         * tree-ssa-alias.c (create_sft): Take type as parameter.
  44         (create_overlap_variables_for): Store type, size and decl
  45         in the fieldoff structure.
  46         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
  47         of struct fieldoff.
  48         (push_fields_onto_fieldstack): Likewise.
  49         (create_variable_info_for): Likewise.  Use offset for the
  50         SFT name if the decl is not available.
  51
  52 2006-01-04  Paul Brook  <paul@codesourcery.com>
  53
  54         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
  55
  56 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
  57
  58         * lambda-code.c (can_put_in_inner_loop): Relax
  59         restrictions.
  60         (can_put_after_inner_loop): New function.
  61         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
  62         (perfect_nestify): Change to make copies and modify uses.
  63
  64 2006-01-04  Richard Henderson  <rth@redhat.com>
  65
  66         Merge from gomp branch:
  67         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
  68         via integer constant.
  69         (pragma_lex): Remove.
  70         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
  71         rather than parsing it.
  72         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
  73         handle_pragma_extern_prefix): Add %< %> quotes.
  74         (registered_pragmas): New.
  75         (c_register_pragma_1): New.
  76         (c_register_pragma): Use it.
  77         (c_register_pragma_with_expansion): Likewise.
  78         (c_invoke_pragma_handler): New.
  79         (init_pragma): Use cpp_register_deferred_pragma directly for
  80         pch_preprocess.
  81         * c-pragma.h (enum pragma_kind): New.
  82         (pragma_handler): New.
  83         (c_invoke_pragma_handler): Declare.
  84         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
  85         CPP_PRAGMA_EOL.
  86         * c-common.h (c_common_pch_pragma): Update decl.
  87         * Makefile.in (c-parser.o): Update dependencies.
  88         (GTFILES): Add c-pragma.h.
  89         * c-parser.c (struct c_token): Add pragma_kind.
  90         (struct c_parser): Add in_pragma.
  91         (c_lex_one_token): Always initialize keyword and pragma_kind.
  92         Extract data for CPP_PRAGMA.
  93         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
  94         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
  95         Don't allow CPP_PRAGMA_EOL if in_pragma.
  96         (c_parser_consume_pragma): New.
  97         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
  98         (c_parser_skip_to_end_of_parameter): Likewise.
  99         (c_parser_skip_to_end_of_block_or_statement): Likewise.
 100         (c_parser_skip_to_pragma_eol): New.
 101         (c_parser_external_declaration): Handle CPP_PRAGMA.
 102         (c_parser_compound_statement_nostart): Likewise.
 103         (c_parser_statement_after_labels): Likewise.
 104         (c_parser_pragma): New.
 105         (pragma_lex): Likewise.
 106         (c_parser_pragma_pch_preprocess): New.
 107         (c_parser_new): Merge into ...
 108         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
 109
 110 2005-01-04  Jeff Law  <law@redhat.com>
 111
 112         PR ada/24994
 113         * tree-cfg.c (bsi_replace): Remove the original statement
 114         from the EH throw statement table.
 115
 116 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
 117
 118         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
 119         make the prototype extern "C" and add throw ().
 120
 121         PR target/25554
 122         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
 123         and pos non-negative and pos + len <= 32.
 124         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
 125         drop pos + len < HOST_BITS_PER_WIDE_INT test.
 126         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
 127
 128         PR c/25559
 129         * c-common.c (handle_vector_size_attribute): Reject zero vector size
 130         as well as sizes not multiple of component size.
 131
 132         PR debug/25562
 133         * function.c (instantiate_expr): New function.
 134         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
 135         walk its DECL_VALUE_EXPR with instantiate_expr.
 136
 137         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
 138         DW_OP_deref{,_size} if address isn't going to be added.
 139
 140 2006-01-04  Ben Elliston  <bje@au.ibm.com>
 141
 142         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
 143         * config/fp-bit.c: Likewise.
 144
 145 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
 146
 147         * dominance.c: Add comment about why we use DFS numbering
 148         of dominance tree.
 149
 150 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 151             Richard Henderson  <rth@redhat.com>
 152
 153         Merge from gomp-branch:
 154         * varasm.c (assemble_variable): Handle thread-local COMMON data.
 155         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
 156
 157 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
 158
 159         PR rtl-optimization/25578
 160         * combine.c (combine_simplify_rtx, force_to_mode): Don't
 161         pass a parameter to simplify_shift_const if changing ASHIFTRT
 162         to LSHIFTRT.
 163
 164 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
 165
 166         * gcc/builtins.c (get_builtin_sync_mem): New function.
 167         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
 168         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
 169         Call get_builtin_sync_mem to generate mem rtx.
 170
 171 2006-01-03  Richard Guenther  <rguenther@suse.de>
 172
 173         PR c/25183
 174         * stmt.c (add_case_node): Make sure to clear overflow flags
 175         from ranges.
 176
 177 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
 178
 179         Merge from gomp-branch.
 180         * config/sparc/sync.md: New file.
 181         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
 182         UNSPECV_LDSTUB): New constants.
 183         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
 184         * config/sparc/predicates.md (memory_reg_operand): New predicate.
 185         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
 186         prototype.
 187
 188 2006-01-03  Roger Sayle  <roger@eyesopen.com>
 189
 190         * combine.c (reg_subword_p): New predicate to test whether the
 191         destination of a set refers to a subword/piece of a register.
 192         (try_combine): Generalize the code to merge the setting of a
 193         pseudo to a constant followed by a set of a subword of that
 194         register to a constant.
 195
 196 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
 197
 198         * basic-block.h (control_flow_graph): Change the type of
 199         x_label_to_block_map to VEC(basic_block,gc) *.
 200         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
 201         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
 202
 203         * tree-ssa-propagate.c (cfg_blocks): Change the type to
 204         VEC(basic_block,heap) *.
 205         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
 206         ssa_prop_fini): Adjust the uses of cfg_blocks.
 207
 208 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
 209
 210         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
 211         COMPONENT_REFs.
 212         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
 213         hashing trees instead of a pointer hash.
 214         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
 215         compare for MEM_EXPR.
 216
 217         PR rtl-optimization/25130
 218         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
 219         when comparing MEMs for GCSE
 220
 221 2006-01-03  Ben Elliston  <bje@au.ibm.com>
 222
 223         * targhooks.h (default_decimal_float_supported_p): Declare.
 224         * targhooks.c (default_decimal_float_supported_p): Define.
 225         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
 226         `default_decimal_float_supported_p'.
 227         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
 228
 229 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
 230
 231         * combine.c (apply_distributive_law <SUBREG>): Check
 232         TRULY_NOOP_TRUNCATION.
 233
 234 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
 235
 236         * dwarf2out.c (have_switched_text_section): Delete.
 237         (have_multiple_function_sections): New.
 238         (have_location_lists): Make 'bool'.
 239         (add_AT_loc_list): Use 'true' not '1'.
 240         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
 241         (output_loc_list): Use have_multiple_function_sections.
 242         (output_ranges): Likewise.
 243         (dwarf2out_begin_function): Set have_multiple_function_sections if
 244         necessary.
 245         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
 246         Check function_section rather than DECL_SECTION_NAME.
 247         (dwarf2out_finish): Use have_multiple_function_sections.
 248         Don't clear have_location_lists.
 249
 250 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
 251             Jan Hubicka  <jh@suse.cz>
 252
 253         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
 254         case of conditional jump jumping to the next instruction.
 255         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
 256         cases of conditional jump jumping to the next instruction.
 257
 258 2006-01-02  Jan Hubicka  <jh@suse.cz>
 259
 260         * i386.c (*_cost): Add COSTS_N_INSNS.
 261         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
 262
 263 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
 264
 265         PR target/25259
 266         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
 267
 268 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 269
 270         * config/arm/arm.c (all_fpus): Fix comment typo.
 271         * config/darwin.c: Likewise.
 272         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
 273         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
 274         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
 275
 276 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
 277
 278         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
 279         (rs6000_split_compare_and_swapqhi): New.
 280         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
 281         (sync_compare_and_swapqhi_internal): New.
 282         * config/rs6000/rs6000-protos.h: Declare.
 283