/* Data structures and declarations used for reading and writing
GIMPLE to a file stream.
- Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2009-2016 Free Software Foundation, Inc.
Contributed by Doug Kwan <dougkwan@google.com>
This file is part of GCC.
#define GCC_LTO_STREAMER_H
#include "plugin-api.h"
-#include "tree.h"
-#include "gimple.h"
-#include "target.h"
-#include "cgraph.h"
-#include "vec.h"
-#include "vecprim.h"
-#include "alloc-pool.h"
#include "gcov-io.h"
+#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
String are represented in the table as pairs, a length in ULEB128
form followed by the data for the string. */
-/* The string that is the prefix on the section names we make for lto.
- For decls the DECL_ASSEMBLER_NAME is appended to make the section
- name for the functions and static_initializers. For other types of
- sections a '.' and the section type are appended. */
-#define LTO_SECTION_NAME_PREFIX ".gnu.lto_"
-
-#define LTO_major_version 2
+#define LTO_major_version 5
#define LTO_minor_version 0
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).
{
LTO_null = 0,
+ /* Special for streamer. Reference to previously-streamed node. */
+ LTO_tree_pickle_reference,
+
/* Reserve enough entries to fit all the tree and gimple codes handled
by the streamer. This guarantees that:
Conversely, to map between LTO tags and tree/gimple codes, the
reverse operation must be applied. */
- LTO_bb0 = 1 + NUM_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE,
+ LTO_bb0 = 1 + MAX_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE,
LTO_bb1,
/* EH region holding the previous statement. */
/* An MD or NORMAL builtin. Only the code and class are streamed out. */
LTO_builtin_decl,
+ /* Shared INTEGER_CST node. */
+ LTO_integer_cst,
+
/* Function body. */
LTO_function,
/* EH try/catch node. */
LTO_eh_catch,
- /* Special for global streamer. Reference to previously-streamed node. */
- LTO_tree_pickle_reference,
+ /* Special for global streamer. A blob of unnamed tree nodes. */
+ LTO_tree_scc,
/* References to indexable tree nodes. These objects are stored in
tables that are written separately from the function bodies that
LTO_const_decl_ref,
LTO_imported_decl_ref,
LTO_translation_unit_decl_ref,
- LTO_global_decl_ref, /* Do not change. */
+ LTO_global_decl_ref,
+ LTO_namelist_decl_ref, /* Do not change. */
/* This tag must always be last. */
LTO_NUM_TAGS
LTO_section_decls = 0,
LTO_section_function_body,
LTO_section_static_initializer,
- LTO_section_cgraph,
- LTO_section_varpool,
+ LTO_section_symtab,
LTO_section_refs,
+ LTO_section_asm,
LTO_section_jump_functions,
LTO_section_ipa_pure_const,
LTO_section_ipa_reference,
- LTO_section_symtab,
+ LTO_section_ipa_profile,
+ LTO_section_symtab_nodes,
LTO_section_opts,
LTO_section_cgraph_opt_sum,
LTO_section_inline_summary,
+ LTO_section_ipcp_transform,
+ LTO_section_ipa_icf,
+ LTO_section_offload_table,
+ LTO_section_mode_table,
LTO_N_SECTION_TYPES /* Must be last. */
};
/* Indices to the various function, type and symbol streams. */
-typedef enum
+enum lto_decl_stream_e_t
{
LTO_DECL_STREAM_TYPE = 0, /* Must be first. */
LTO_DECL_STREAM_FIELD_DECL,
LTO_DECL_STREAM_NAMESPACE_DECL,
LTO_DECL_STREAM_LABEL_DECL,
LTO_N_DECL_STREAMS
-} lto_decl_stream_e_t;
+};
typedef enum ld_plugin_symbol_resolution ld_plugin_symbol_resolution_t;
-DEF_VEC_I(ld_plugin_symbol_resolution_t);
-DEF_VEC_ALLOC_I(ld_plugin_symbol_resolution_t, heap);
/* Macro to define convenience functions for type and decl streams
unsigned int idx) \
{ \
struct lto_in_decl_state *state = data->current_decl_state; \
- gcc_assert (idx < state->streams[LTO_DECL_STREAM_## UPPER_NAME].size); \
- return state->streams[LTO_DECL_STREAM_## UPPER_NAME].trees[idx]; \
+ return (*state->streams[LTO_DECL_STREAM_## UPPER_NAME])[idx]; \
} \
\
static inline unsigned int \
lto_file_decl_data_num_ ## name ## s (struct lto_file_decl_data *data) \
{ \
struct lto_in_decl_state *state = data->current_decl_state; \
- return state->streams[LTO_DECL_STREAM_## UPPER_NAME].size; \
+ return vec_safe_length (state->streams[LTO_DECL_STREAM_## UPPER_NAME]); \
}
/* Return the data found from the above call. The first three
parameters are the same as above. The fourth parameter is the data
- itself and the fifth is the lenght of the data. */
+ itself and the fifth is the length of the data. */
typedef void (lto_free_section_data_f) (struct lto_file_decl_data *,
enum lto_section_type,
const char *,
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.
+/* The location cache holds expanded locations for streamed in trees.
+ This is done to reduce memory usage of libcpp linemap that strongly preffers
+ locations to be inserted in the soruce order. */
- - 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
+class lto_location_cache
{
- /* The mapping between tree nodes and slots into the nodes array. */
- struct pointer_map_t *node_map;
+public:
+ /* Apply all changes in location cache. Add locations into linemap and patch
+ trees. */
+ bool apply_location_cache ();
+ /* Tree merging did not suceed; mark all changes in the cache as accepted. */
+ void accept_location_cache ();
+ /* Tree merging did suceed; throw away recent changes. */
+ void revert_location_cache ();
+ void input_location (location_t *loc, struct bitpack_d *bp,
+ struct data_in *data_in);
+ lto_location_cache ()
+ : loc_cache (), accepted_length (0), current_file (NULL), current_line (0),
+ current_col (0), current_sysp (false), current_loc (UNKNOWN_LOCATION)
+ {
+ gcc_assert (!current_cache);
+ current_cache = this;
+ }
+ ~lto_location_cache ()
+ {
+ apply_location_cache ();
+ gcc_assert (current_cache == this);
+ current_cache = NULL;
+ }
+
+ /* There can be at most one instance of location cache (combining multiple
+ would bring it out of sync with libcpp linemap); point to current
+ one. */
+ static lto_location_cache *current_cache;
+
+private:
+ static int cmp_loc (const void *pa, const void *pb);
+
+ struct cached_location
+ {
+ const char *file;
+ location_t *loc;
+ int line, col;
+ bool sysp;
+ };
+
+ /* The location cache. */
+
+ auto_vec<cached_location> loc_cache;
+
+ /* Accepted entries are ones used by trees that are known to be not unified
+ by tree merging. */
+
+ int accepted_length;
+
+ /* Bookkeeping to remember state in between calls to lto_apply_location_cache
+ When streaming gimple, the location cache is not used and thus
+ lto_apply_location_cache happens per location basis. It is then
+ useful to avoid redundant calls of linemap API. */
- /* The nodes pickled so far. */
- VEC(tree,heap) *nodes;
+ const char *current_file;
+ int current_line;
+ int current_col;
+ bool current_sysp;
+ location_t current_loc;
};
-
/* Structure used as buffer for reading an LTO file. */
-struct lto_input_block
+class lto_input_block
{
+public:
+ /* Special constructor for the string table, it abuses this to
+ do random access but use the uhwi decoder. */
+ lto_input_block (const char *data_, unsigned int p_, unsigned int len_,
+ const unsigned char *mode_table_)
+ : data (data_), mode_table (mode_table_), p (p_), len (len_) {}
+ lto_input_block (const char *data_, unsigned int len_,
+ const unsigned char *mode_table_)
+ : data (data_), mode_table (mode_table_), p (0), len (len_) {}
+
const char *data;
+ const unsigned char *mode_table;
unsigned int p;
unsigned int len;
};
-#define LTO_INIT_INPUT_BLOCK(BASE,D,P,L) \
- do { \
- BASE.data = D; \
- BASE.p = P; \
- BASE.len = L; \
- } while (0)
-
-#define LTO_INIT_INPUT_BLOCK_PTR(BASE,D,P,L) \
- do { \
- BASE->data = D; \
- BASE->p = P; \
- BASE->len = L; \
- } while (0)
-
/* The is the first part of the record for a function or constructor
in the .o file. */
{
int16_t major_version;
int16_t minor_version;
- enum lto_section_type section_type;
};
-/* The header for a function body. */
-struct lto_function_header
+/* The is the first part of the record in an LTO file for many of the
+ IPA passes. */
+struct lto_simple_header : lto_header
{
- /* The header for all types of sections. */
- struct lto_header lto_header;
-
- /* Number of labels with names. */
- int32_t num_named_labels;
-
- /* Number of labels without names. */
- int32_t num_unnamed_labels;
-
- /* Size compressed or 0 if not compressed. */
- int32_t compressed_size;
-
- /* Size of names for named labels. */
- int32_t named_label_size;
-
- /* Size of the cfg. */
- int32_t cfg_size;
-
/* Size of main gimple body of function. */
int32_t main_size;
+};
+struct lto_simple_header_with_strings : lto_simple_header
+{
/* Size of the string table. */
int32_t string_size;
};
+/* The header for a function body. */
+struct lto_function_header : lto_simple_header_with_strings
+{
+ /* Size of the cfg. */
+ int32_t cfg_size;
+};
+
/* Structure describing a symbol section. */
-struct lto_decl_header
+struct lto_decl_header : lto_simple_header_with_strings
{
- /* The header for all types of sections. */
- struct lto_header lto_header;
-
/* Size of region for decl state. */
int32_t decl_state_size;
/* Number of nodes in globals stream. */
int32_t num_nodes;
-
- /* Size of region for expressions, decls, types, etc. */
- int32_t main_size;
-
- /* Size of the string table. */
- int32_t string_size;
};
struct lto_stats_d
{
unsigned HOST_WIDE_INT num_input_cgraph_nodes;
- unsigned HOST_WIDE_INT num_output_cgraph_nodes;
+ unsigned HOST_WIDE_INT num_output_symtab_nodes;
unsigned HOST_WIDE_INT num_input_files;
unsigned HOST_WIDE_INT num_output_files;
unsigned HOST_WIDE_INT num_cgraph_partitions;
unsigned HOST_WIDE_INT num_compressed_il_bytes;
unsigned HOST_WIDE_INT num_input_il_bytes;
unsigned HOST_WIDE_INT num_uncompressed_il_bytes;
+ unsigned HOST_WIDE_INT num_tree_bodies_output;
+ unsigned HOST_WIDE_INT num_pickle_refs_output;
};
-/* Encoder data structure used to stream callgraph nodes. */
-struct lto_cgraph_encoder_d
+/* Entry of LTO symtab encoder. */
+struct lto_encoder_entry
{
- /* Map nodes to reference number. */
- struct pointer_map_t *map;
-
- /* Map reference number to node. */
- VEC(cgraph_node_ptr,heap) *nodes;
-
- /* Map of nodes where we want to output body. */
- struct pointer_set_t *body;
+ symtab_node *node;
+ /* Is the node in this partition (i.e. ltrans of this partition will
+ be responsible for outputting it)? */
+ unsigned int in_partition:1;
+ /* Do we encode body in this partition? */
+ unsigned int body:1;
+ /* Do we encode initializer in this partition?
+ For example the readonly variable initializers are encoded to aid
+ constant folding even if they are not in the partition. */
+ unsigned int initializer:1;
};
-typedef struct lto_cgraph_encoder_d *lto_cgraph_encoder_t;
-
-/* Return number of encoded nodes in ENCODER. */
-
-static inline int
-lto_cgraph_encoder_size (lto_cgraph_encoder_t encoder)
-{
- return VEC_length (cgraph_node_ptr, encoder->nodes);
-}
-
/* Encoder data structure used to stream callgraph nodes. */
-struct lto_varpool_encoder_d
+struct lto_symtab_encoder_d
{
- /* Map nodes to reference number. */
- struct pointer_map_t *map;
-
- /* Map reference number to node. */
- VEC(varpool_node_ptr,heap) *nodes;
-
- /* Map of nodes where we want to output initializer. */
- struct pointer_set_t *initializer;
+ vec<lto_encoder_entry> nodes;
+ hash_map<symtab_node *, size_t> *map;
};
-typedef struct lto_varpool_encoder_d *lto_varpool_encoder_t;
-
-/* Return number of encoded nodes in ENCODER. */
-static inline int
-lto_varpool_encoder_size (lto_varpool_encoder_t encoder)
-{
- return VEC_length (varpool_node_ptr, encoder->nodes);
-}
+typedef struct lto_symtab_encoder_d *lto_symtab_encoder_t;
-/* Mapping from indices to trees. */
-struct GTY(()) lto_tree_ref_table
+/* Iterator structure for cgraph node sets. */
+struct lto_symtab_encoder_iterator
{
- /* Array of referenced trees . */
- tree * GTY((length ("%h.size"))) trees;
-
- /* Size of array. */
- unsigned int size;
+ lto_symtab_encoder_t encoder;
+ unsigned index;
};
-/* Mapping between trees and slots in an array. */
-struct lto_decl_slot
-{
- tree t;
- int slot_num;
-};
-
/* The lto_tree_ref_encoder struct is used to encode trees into indices. */
struct lto_tree_ref_encoder
{
- htab_t tree_hash_table; /* Maps pointers to indices. */
- unsigned int next_index; /* Next available index. */
- VEC(tree,heap) *trees; /* Maps indices to pointers. */
+ hash_map<tree, unsigned> *tree_hash_table; /* Maps pointers to indices. */
+ vec<tree> trees; /* Maps indices to pointers. */
};
/* Structure to hold states of input scope. */
-struct GTY(()) lto_in_decl_state
+struct GTY((for_user)) lto_in_decl_state
{
/* Array of lto_in_decl_buffers to store type and decls streams. */
- struct lto_tree_ref_table streams[LTO_N_DECL_STREAMS];
+ vec<tree, va_gc> *streams[LTO_N_DECL_STREAMS];
/* If this in-decl state is associated with a function. FN_DECL
point to the FUNCTION_DECL. */
tree fn_decl;
+
+ /* True if decl state is compressed. */
+ bool compressed;
};
typedef struct lto_in_decl_state *lto_in_decl_state_ptr;
+struct decl_state_hasher : ggc_ptr_hash<lto_in_decl_state>
+{
+ static hashval_t
+ hash (lto_in_decl_state *s)
+ {
+ return htab_hash_pointer (s->fn_decl);
+ }
+
+ static bool
+ equal (lto_in_decl_state *a, lto_in_decl_state *b)
+ {
+ return a->fn_decl == b->fn_decl;
+ }
+};
/* The structure that holds all of the vectors of global types,
decls and cgraph nodes used in the serialization of this file. */
struct lto_tree_ref_encoder streams[LTO_N_DECL_STREAMS];
/* Encoder for cgraph nodes. */
- lto_cgraph_encoder_t cgraph_node_encoder;
-
- /* Encoder for varpool nodes. */
- lto_varpool_encoder_t varpool_node_encoder;
+ lto_symtab_encoder_t symtab_node_encoder;
/* If this out-decl state belongs to a function, fn_decl points to that
function. Otherwise, it is NULL. */
tree fn_decl;
+
+ /* True if decl state is compressed. */
+ bool compressed;
};
typedef struct lto_out_decl_state *lto_out_decl_state_ptr;
-DEF_VEC_P(lto_out_decl_state_ptr);
-DEF_VEC_ALLOC_P(lto_out_decl_state_ptr, heap);
+
+/* Compact representation of a index <-> resolution pair. Unpacked to an
+ vector later. */
+struct res_pair
+{
+ ld_plugin_symbol_resolution_t res;
+ unsigned index;
+};
+
/* One of these is allocated for each object file that being compiled
by lto. This structure contains the tables that are needed by the
struct lto_in_decl_state *global_decl_state;
/* Table of cgraph nodes present in this file. */
- lto_cgraph_encoder_t GTY((skip)) cgraph_node_encoder;
-
- /* Table of varpool nodes present in this file. */
- lto_varpool_encoder_t GTY((skip)) varpool_node_encoder;
+ lto_symtab_encoder_t GTY((skip)) symtab_node_encoder;
/* Hash table maps lto-related section names to location in file. */
- htab_t GTY((param_is (struct lto_in_decl_state))) function_decl_states;
+ hash_table<decl_state_hasher> *function_decl_states;
/* The .o file that these offsets relate to. */
const char *GTY((skip)) file_name;
struct lto_file_decl_data *next;
/* Sub ID for merged objects. */
- unsigned id;
+ unsigned HOST_WIDE_INT id;
/* Symbol resolutions for this file */
- VEC(ld_plugin_symbol_resolution_t,heap) * GTY((skip)) resolutions;
+ vec<res_pair> GTY((skip)) respairs;
+ unsigned max_index;
struct gcov_ctr_summary GTY((skip)) profile_info;
+
+ /* Map assigning declarations their resolutions. */
+ hash_map<tree, ld_plugin_symbol_resolution> * GTY((skip)) resolution_map;
+
+ /* Mode translation table. */
+ const unsigned char *mode_table;
};
typedef struct lto_file_decl_data *lto_file_decl_data_ptr;
unsigned int total_size;
};
-/* The is the first part of the record in an LTO file for many of the
- IPA passes. */
-struct lto_simple_header
-{
- /* The header for all types of sections. */
- struct lto_header lto_header;
-
- /* Size of main gimple body of function. */
- int32_t main_size;
-
- /* Size of main stream when compressed. */
- int32_t compressed_size;
-};
-
/* A simple output block. This can be used for simple IPA passes that
do not need more than one stream. */
struct lto_simple_output_block
struct lto_output_stream *main_stream;
};
+/* String hashing. */
+
+struct string_slot
+{
+ const char *s;
+ int len;
+ unsigned int slot_num;
+};
+
+/* Hashtable helpers. */
+
+struct string_slot_hasher : nofree_ptr_hash <string_slot>
+{
+ static inline hashval_t hash (const string_slot *);
+ static inline bool equal (const string_slot *, const string_slot *);
+};
+
+/* Returns a hash code for DS. Adapted from libiberty's htab_hash_string
+ to support strings that may not end in '\0'. */
+
+inline hashval_t
+string_slot_hasher::hash (const string_slot *ds)
+{
+ 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 DS1 and DS2 are equal. */
+
+inline bool
+string_slot_hasher::equal (const string_slot *ds1, const string_slot *ds2)
+{
+ if (ds1->len == ds2->len)
+ return memcmp (ds1->s, ds2->s, ds1->len) == 0;
+
+ return 0;
+}
+
/* Data structure holding all the data and descriptors used when writing
an LTO file. */
struct output_block
/* The hash table that contains the set of strings we have seen so
far and the indexes assigned to them. */
- htab_t string_hash_table;
+ hash_table<string_slot_hasher> *string_hash_table;
- /* The current cgraph_node that we are currently serializing. Null
+ /* The current symbol that we are currently serializing. Null
if we are serializing something else. */
- struct cgraph_node *cgraph_node;
+ symtab_node *symbol;
/* These are the last file and line that were seen in the stream.
If the current node differs from these, it needs to insert
const char *current_file;
int current_line;
int current_col;
-
- /* True if writing globals and types. */
- bool global;
+ bool current_sysp;
/* Cache of nodes written in this section. */
- struct lto_streamer_cache_d *writer_cache;
+ struct streamer_tree_cache_d *writer_cache;
/* All data persistent across whole duration of output block
can go here. */
/* The global decls and types. */
struct lto_file_decl_data *file_data;
- /* All of the labels. */
- tree *labels;
-
/* The string table. */
const char *strings;
/* The length of the string table. */
unsigned int strings_len;
- /* Number of named labels. Used to find the index of unnamed labels
- since they share space with the named labels. */
- unsigned int num_named_labels;
-
- /* Number of unnamed labels. */
- unsigned int num_unnamed_labels;
-
- const char *current_file;
- int current_line;
- int current_col;
-
/* Maps each reference number to the resolution done by the linker. */
- VEC(ld_plugin_symbol_resolution_t,heap) *globals_resolution;
+ vec<ld_plugin_symbol_resolution_t> globals_resolution;
/* Cache of pickled nodes. */
- struct lto_streamer_cache_d *reader_cache;
+ struct streamer_tree_cache_d *reader_cache;
+
+ /* Cache of source code location. */
+ lto_location_cache location_cache;
};
extern struct lto_file_decl_data **lto_get_file_decl_data (void);
extern const char *lto_get_section_data (struct lto_file_decl_data *,
enum lto_section_type,
- const char *, size_t *);
+ const char *, size_t *,
+ bool decompress = false);
+extern const char *lto_get_raw_section_data (struct lto_file_decl_data *,
+ enum lto_section_type,
+ const char *, size_t *);
extern void lto_free_section_data (struct lto_file_decl_data *,
- enum lto_section_type,
- const char *, const char *, size_t);
-extern unsigned HOST_WIDE_INT lto_input_uleb128 (struct lto_input_block *);
-extern unsigned HOST_WIDEST_INT lto_input_widest_uint_uleb128 (
- struct lto_input_block *);
-extern HOST_WIDE_INT lto_input_sleb128 (struct lto_input_block *);
+ enum lto_section_type,
+ const char *, const char *, size_t,
+ bool decompress = false);
+extern void lto_free_raw_section_data (struct lto_file_decl_data *,
+ enum lto_section_type,
+ const char *, const char *, size_t);
extern htab_t lto_create_renaming_table (void);
extern void lto_record_renamed_decl (struct lto_file_decl_data *,
const char *, const char *);
const char *);
extern struct lto_in_decl_state *lto_new_in_decl_state (void);
extern void lto_delete_in_decl_state (struct lto_in_decl_state *);
-extern hashval_t lto_hash_in_decl_state (const void *);
-extern int lto_eq_in_decl_state (const void *, const void *);
extern struct lto_in_decl_state *lto_get_function_in_decl_state (
struct lto_file_decl_data *, tree);
+extern void lto_free_function_in_decl_state (struct lto_in_decl_state *);
+extern void lto_free_function_in_decl_state_for_node (symtab_node *);
extern void lto_section_overrun (struct lto_input_block *) ATTRIBUTE_NORETURN;
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 int lto_eq_decl_slot_node (const void *, const void *);
-extern hashval_t lto_hash_type_slot_node (const void *);
-extern int lto_eq_type_slot_node (const void *, const void *);
extern void lto_begin_section (const char *, bool);
extern void lto_end_section (void);
+extern void lto_write_data (const void *, unsigned int);
+extern void lto_write_raw_data (const void *, unsigned int);
extern void lto_write_stream (struct lto_output_stream *);
-extern void lto_output_data_stream (struct lto_output_stream *, const void *,
- size_t);
-extern void lto_output_uleb128_stream (struct lto_output_stream *,
- unsigned HOST_WIDE_INT);
-extern void lto_output_widest_uint_uleb128_stream (struct lto_output_stream *,
- unsigned HOST_WIDEST_INT);
-extern void lto_output_sleb128_stream (struct lto_output_stream *,
- HOST_WIDE_INT);
extern bool lto_output_decl_index (struct lto_output_stream *,
struct lto_tree_ref_encoder *,
tree, unsigned int *);
/* In lto-streamer.c. */
+
+/* Set when streaming LTO for offloading compiler. */
+extern bool lto_stream_offload_p;
+
extern const char *lto_tag_name (enum LTO_tags);
extern bitmap lto_bitmap_alloc (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 print_lto_report (const char *);
extern void lto_streamer_init (void);
extern bool gate_lto_out (void);
#ifdef LTO_STREAMER_DEBUG
extern void lto_orig_address_remove (tree);
#endif
extern void lto_check_version (int, int);
-
+extern void lto_streamer_hooks_init (void);
/* In lto-streamer-in.c */
extern void lto_input_cgraph (struct lto_file_decl_data *, const char *);
-extern void lto_init_reader (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,
+extern void lto_reader_init (void);
+extern void lto_input_function_body (struct lto_file_decl_data *,
+ struct cgraph_node *,
const char *);
+extern void lto_input_variable_constructor (struct lto_file_decl_data *,
+ struct varpool_node *,
+ const char *);
extern void lto_input_constructors_and_inits (struct lto_file_decl_data *,
const char *);
-extern void lto_init_reader (void);
+extern void lto_input_toplevel_asms (struct lto_file_decl_data *, int);
+extern void lto_input_mode_table (struct lto_file_decl_data *);
extern struct data_in *lto_data_in_create (struct lto_file_decl_data *,
const char *, unsigned,
- VEC(ld_plugin_symbol_resolution_t,heap) *);
+ vec<ld_plugin_symbol_resolution_t> );
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);
+void lto_input_location (location_t *, struct bitpack_d *, struct data_in *);
+location_t stream_input_location_now (struct bitpack_d *bp,
+ struct data_in *data);
+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);
+hashval_t lto_input_scc (struct lto_input_block *, struct data_in *,
+ unsigned *, unsigned *);
+tree lto_input_tree_1 (struct lto_input_block *, struct data_in *,
+ enum LTO_tags, hashval_t hash);
+tree lto_input_tree (struct lto_input_block *, struct data_in *);
/* In lto-streamer-out.c */
extern void lto_register_decl_definition (tree, struct lto_file_decl_data *);
extern struct output_block *create_output_block (enum lto_section_type);
extern void destroy_output_block (struct output_block *);
-extern void lto_output_tree (struct output_block *, tree, bool);
+extern void lto_output_tree (struct output_block *, tree, bool, bool);
+extern void lto_output_toplevel_asms (void);
extern void produce_asm (struct output_block *ob, tree fn);
+extern void lto_output ();
+extern void produce_asm_for_decls ();
void lto_output_decl_state_streams (struct output_block *,
struct lto_out_decl_state *);
void lto_output_decl_state_refs (struct output_block *,
struct lto_output_stream *,
struct lto_out_decl_state *);
+void lto_output_location (struct output_block *, struct bitpack_d *, location_t);
+void lto_output_init_mode_table (void);
/* In lto-cgraph.c */
-struct cgraph_node *lto_cgraph_encoder_deref (lto_cgraph_encoder_t, int);
-int lto_cgraph_encoder_lookup (lto_cgraph_encoder_t, struct cgraph_node *);
-lto_cgraph_encoder_t lto_cgraph_encoder_new (void);
-int lto_cgraph_encoder_encode (lto_cgraph_encoder_t, struct cgraph_node *);
-void lto_cgraph_encoder_delete (lto_cgraph_encoder_t);
-bool lto_cgraph_encoder_encode_body_p (lto_cgraph_encoder_t,
+extern bool asm_nodes_output;
+lto_symtab_encoder_t lto_symtab_encoder_new (bool);
+int lto_symtab_encoder_encode (lto_symtab_encoder_t, symtab_node *);
+void lto_symtab_encoder_delete (lto_symtab_encoder_t);
+bool lto_symtab_encoder_delete_node (lto_symtab_encoder_t, symtab_node *);
+bool lto_symtab_encoder_encode_body_p (lto_symtab_encoder_t,
struct cgraph_node *);
-
-bool lto_varpool_encoder_encode_body_p (lto_varpool_encoder_t,
- struct varpool_node *);
-struct varpool_node *lto_varpool_encoder_deref (lto_varpool_encoder_t, int);
-int lto_varpool_encoder_lookup (lto_varpool_encoder_t, struct varpool_node *);
-lto_varpool_encoder_t lto_varpool_encoder_new (void);
-int lto_varpool_encoder_encode (lto_varpool_encoder_t, struct varpool_node *);
-void lto_varpool_encoder_delete (lto_varpool_encoder_t);
-bool lto_varpool_encoder_encode_initializer_p (lto_varpool_encoder_t,
- struct varpool_node *);
-void output_cgraph (cgraph_node_set, varpool_node_set);
-void input_cgraph (void);
+bool lto_symtab_encoder_in_partition_p (lto_symtab_encoder_t,
+ symtab_node *);
+void lto_set_symtab_encoder_in_partition (lto_symtab_encoder_t,
+ symtab_node *);
+
+bool lto_symtab_encoder_encode_initializer_p (lto_symtab_encoder_t,
+ varpool_node *);
+void output_symtab (void);
+void input_symtab (void);
+void output_offload_tables (void);
+void input_offload_tables (void);
bool referenced_from_other_partition_p (struct ipa_ref_list *,
- cgraph_node_set,
- varpool_node_set vset);
+ lto_symtab_encoder_t);
bool reachable_from_other_partition_p (struct cgraph_node *,
- cgraph_node_set);
-bool referenced_from_this_partition_p (struct ipa_ref_list *,
- cgraph_node_set,
- varpool_node_set vset);
+ lto_symtab_encoder_t);
+bool referenced_from_this_partition_p (symtab_node *,
+ lto_symtab_encoder_t);
bool reachable_from_this_partition_p (struct cgraph_node *,
- cgraph_node_set);
-void compute_ltrans_boundary (struct lto_out_decl_state *state,
- cgraph_node_set, varpool_node_set);
+ lto_symtab_encoder_t);
+lto_symtab_encoder_t compute_ltrans_boundary (lto_symtab_encoder_t encoder);
+void select_what_to_stream (void);
+/* In options-save.c. */
+void cl_target_option_stream_out (struct output_block *, struct bitpack_d *,
+ struct cl_target_option *);
-/* In lto-symtab.c. */
-extern void lto_symtab_register_decl (tree, ld_plugin_symbol_resolution_t,
- struct lto_file_decl_data *);
-extern void lto_symtab_merge_decls (void);
-extern void lto_symtab_merge_cgraph_nodes (void);
-extern tree lto_symtab_prevailing_decl (tree decl);
-extern enum ld_plugin_symbol_resolution lto_symtab_get_resolution (tree decl);
-extern void lto_symtab_free (void);
-extern GTY(()) VEC(tree,gc) *lto_global_var_decls;
+void cl_target_option_stream_in (struct data_in *,
+ struct bitpack_d *,
+ struct cl_target_option *);
+void cl_optimization_stream_out (struct bitpack_d *, struct cl_optimization *);
-/* In lto-opts.c. */
-extern void lto_register_user_option (size_t, const char *, int, unsigned int);
-extern void lto_read_file_options (struct lto_file_decl_data *);
-extern void lto_write_options (void);
-extern void lto_reissue_options (void);
-void lto_clear_user_options (void);
-void lto_clear_file_options (void);
+void cl_optimization_stream_in (struct bitpack_d *, struct cl_optimization *);
-/* In lto-wpa-fixup.c */
-void lto_mark_nothrow_fndecl (tree);
-void lto_fixup_nothrow_decls (void);
+
+/* In lto-opts.c. */
+extern void lto_write_options (void);
/* Statistics gathered during LTO, WPA and LTRANS. */
/* Holds all the out decl states of functions output so far in the
current output file. */
-extern VEC(lto_out_decl_state_ptr, heap) *lto_function_decl_states;
+extern vec<lto_out_decl_state_ptr> lto_function_decl_states;
/* Return true if LTO tag TAG corresponds to a tree code. */
static inline bool
lto_tag_is_tree_code_p (enum LTO_tags tag)
{
- return tag > LTO_null && (unsigned) tag <= NUM_TREE_CODES;
+ return tag > LTO_tree_pickle_reference && (unsigned) tag <= MAX_TREE_CODES;
}
static inline bool
lto_tag_is_gimple_code_p (enum LTO_tags tag)
{
- return (unsigned) tag >= NUM_TREE_CODES + 1
- && (unsigned) tag < 1 + NUM_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE;
+ return (unsigned) tag >= NUM_TREE_CODES + 2
+ && (unsigned) tag < 2 + NUM_TREE_CODES + LAST_AND_UNUSED_GIMPLE_CODE;
}
static inline enum LTO_tags
lto_gimple_code_to_tag (enum gimple_code code)
{
- return (enum LTO_tags) ((unsigned) code + NUM_TREE_CODES + 1);
+ return (enum LTO_tags) ((unsigned) code + NUM_TREE_CODES + 2);
}
lto_tag_to_gimple_code (enum LTO_tags tag)
{
gcc_assert (lto_tag_is_gimple_code_p (tag));
- return (enum gimple_code) ((unsigned) tag - NUM_TREE_CODES - 1);
+ return (enum gimple_code) ((unsigned) tag - NUM_TREE_CODES - 2);
}
static inline enum LTO_tags
lto_tree_code_to_tag (enum tree_code code)
{
- return (enum LTO_tags) ((unsigned) code + 1);
+ return (enum LTO_tags) ((unsigned) code + 2);
}
lto_tag_to_tree_code (enum LTO_tags tag)
{
gcc_assert (lto_tag_is_tree_code_p (tag));
- return (enum tree_code) ((unsigned) tag - 1);
+ return (enum tree_code) ((unsigned) tag - 2);
+}
+
+/* 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,
- htab_hash hash_fn, htab_eq eq_fn)
+lto_init_tree_ref_encoder (struct lto_tree_ref_encoder *encoder)
{
- encoder->tree_hash_table = htab_create (37, hash_fn, eq_fn, free);
- encoder->next_index = 0;
- encoder->trees = NULL;
+ encoder->tree_hash_table = new hash_map<tree, unsigned> (251);
+ encoder->trees.create (0);
}
-/* Destory an lto_tree_ref_encoder ENCODER by freeing its contents. The
+/* Destroy an lto_tree_ref_encoder ENCODER by freeing its contents. The
memory used by ENCODER is not freed by this function. */
static inline void
lto_destroy_tree_ref_encoder (struct lto_tree_ref_encoder *encoder)
{
/* Hash table may be delete already. */
- if (encoder->tree_hash_table)
- htab_delete (encoder->tree_hash_table);
- VEC_free (tree, heap, encoder->trees);
+ delete encoder->tree_hash_table;
+ encoder->tree_hash_table = NULL;
+ encoder->trees.release ();
}
/* Return the number of trees encoded in ENCODER. */
static inline unsigned int
lto_tree_ref_encoder_size (struct lto_tree_ref_encoder *encoder)
{
- return VEC_length (tree, encoder->trees);
+ return encoder->trees.length ();
}
/* Return the IDX-th tree in ENCODER. */
lto_tree_ref_encoder_get_tree (struct lto_tree_ref_encoder *encoder,
unsigned int idx)
{
- return VEC_index (tree, encoder->trees, idx);
+ return encoder->trees[idx];
}
-
-/* Return true if LABEL should be emitted in the global context. */
-static inline bool
-emit_label_in_global_context_p (tree label)
+/* Return number of encoded nodes in ENCODER. */
+static inline int
+lto_symtab_encoder_size (lto_symtab_encoder_t encoder)
{
- return DECL_NONLOCAL (label) || FORCED_LABEL (label);
+ return encoder->nodes.length ();
}
-/* Return true if tree node EXPR should be streamed as a builtin. For
- these nodes, we just emit the class and function code. */
-static inline bool
-lto_stream_as_builtin_p (tree expr)
+/* Value used to represent failure of lto_symtab_encoder_lookup. */
+#define LCC_NOT_FOUND (-1)
+
+/* Look up NODE in encoder. Return NODE's reference if it has been encoded
+ or LCC_NOT_FOUND if it is not there. */
+
+static inline int
+lto_symtab_encoder_lookup (lto_symtab_encoder_t encoder,
+ symtab_node *node)
{
- return (TREE_CODE (expr) == FUNCTION_DECL
- && DECL_IS_BUILTIN (expr)
- && (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_NORMAL
- || DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD));
+ size_t *slot = encoder->map->get (node);
+ return (slot && *slot ? *(slot) - 1 : LCC_NOT_FOUND);
}
-/* Return true if EXPR is a tree node that can be written to disk. */
+/* Return true if iterator LSE points to nothing. */
static inline bool
-lto_is_streamable (tree expr)
+lsei_end_p (lto_symtab_encoder_iterator lsei)
{
- enum tree_code code = TREE_CODE (expr);
-
- /* Notice that we reject SSA_NAMEs as well. We only emit the SSA
- name version in lto_output_tree_ref (see output_ssa_names). */
- return !is_lang_specific (expr)
- && code != SSA_NAME
- && code != CALL_EXPR
- && code != LANG_TYPE
- && code != MODIFY_EXPR
- && code != INIT_EXPR
- && code != TARGET_EXPR
- && code != BIND_EXPR
- && code != WITH_CLEANUP_EXPR
- && code != STATEMENT_LIST
- && (code == CASE_LABEL_EXPR
- || code == DECL_EXPR
- || TREE_CODE_CLASS (code) != tcc_statement);
+ return lsei.index >= (unsigned)lto_symtab_encoder_size (lsei.encoder);
}
-DEFINE_DECL_STREAM_FUNCS (TYPE, type)
-DEFINE_DECL_STREAM_FUNCS (FIELD_DECL, field_decl)
-DEFINE_DECL_STREAM_FUNCS (FN_DECL, fn_decl)
-DEFINE_DECL_STREAM_FUNCS (VAR_DECL, var_decl)
-DEFINE_DECL_STREAM_FUNCS (TYPE_DECL, type_decl)
-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)
+/* Advance iterator LSE. */
+static inline void
+lsei_next (lto_symtab_encoder_iterator *lsei)
{
- struct bitpack_d bp;
- bp.pos = 0;
- bp.word = 0;
- bp.stream = (void *)s;
- return bp;
+ lsei->index++;
}
-/* 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)
+/* Return the node pointed to by LSI. */
+static inline symtab_node *
+lsei_node (lto_symtab_encoder_iterator lsei)
{
- 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;
+ return lsei.encoder->nodes[lsei.index].node;
}
-/* Finishes bit-packing of BP. */
-static inline void
-lto_output_bitpack (struct bitpack_d *bp)
+/* Return the node pointed to by LSI. */
+static inline struct cgraph_node *
+lsei_cgraph_node (lto_symtab_encoder_iterator lsei)
{
- lto_output_uleb128_stream ((struct lto_output_stream *) bp->stream,
- bp->word);
- bp->word = 0;
- bp->pos = 0;
+ return dyn_cast<cgraph_node *> (lsei.encoder->nodes[lsei.index].node);
}
-/* Returns a new bit-packing context for bit-unpacking from IB. */
-static inline struct bitpack_d
-lto_input_bitpack (struct lto_input_block *ib)
+/* Return the node pointed to by LSI. */
+static inline varpool_node *
+lsei_varpool_node (lto_symtab_encoder_iterator lsei)
{
- struct bitpack_d bp;
- bp.word = lto_input_uleb128 (ib);
- bp.pos = 0;
- bp.stream = (void *)ib;
- return bp;
+ return dyn_cast<varpool_node *> (lsei.encoder->nodes[lsei.index].node);
}
-/* 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)
+/* Return the cgraph node corresponding to REF using ENCODER. */
+
+static inline symtab_node *
+lto_symtab_encoder_deref (lto_symtab_encoder_t encoder, int ref)
{
- 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;
+ if (ref == LCC_NOT_FOUND)
+ return NULL;
+
+ return encoder->nodes[ref].node;
}
+/* Return an iterator to the first node in LSI. */
+static inline lto_symtab_encoder_iterator
+lsei_start (lto_symtab_encoder_t encoder)
+{
+ lto_symtab_encoder_iterator lsei;
-/* Write a character to the output block. */
+ lsei.encoder = encoder;
+ lsei.index = 0;
+ return lsei;
+}
+/* Advance iterator LSE. */
static inline void
-lto_output_1_stream (struct lto_output_stream *obs, char c)
+lsei_next_in_partition (lto_symtab_encoder_iterator *lsei)
{
- /* 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--;
+ lsei_next (lsei);
+ while (!lsei_end_p (*lsei)
+ && !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei)))
+ lsei_next (lsei);
}
+/* Return an iterator to the first node in LSI. */
+static inline lto_symtab_encoder_iterator
+lsei_start_in_partition (lto_symtab_encoder_t encoder)
+{
+ lto_symtab_encoder_iterator lsei = lsei_start (encoder);
-/* Read byte from the input block. */
+ if (lsei_end_p (lsei))
+ return lsei;
+ if (!lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei)))
+ lsei_next_in_partition (&lsei);
-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++]);
+ return lsei;
}
-/* 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. */
-
+/* Advance iterator LSE. */
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)
+lsei_next_function_in_partition (lto_symtab_encoder_iterator *lsei)
{
- 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);
+ lsei_next (lsei);
+ while (!lsei_end_p (*lsei)
+ && (!is_a <cgraph_node *> (lsei_node (*lsei))
+ || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei))))
+ lsei_next (lsei);
}
-/* 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)
+/* Return an iterator to the first node in LSI. */
+static inline lto_symtab_encoder_iterator
+lsei_start_function_in_partition (lto_symtab_encoder_t encoder)
{
- 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;
-}
+ lto_symtab_encoder_iterator lsei = lsei_start (encoder);
+ if (lsei_end_p (lsei))
+ return lsei;
+ if (!is_a <cgraph_node *> (lsei_node (lsei))
+ || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei)))
+ lsei_next_function_in_partition (&lsei);
-/* 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. */
+ return lsei;
+}
+/* Advance iterator LSE. */
static inline void
-bp_pack_int_in_range (struct bitpack_d *bp,
- HOST_WIDE_INT min,
- HOST_WIDE_INT max,
- HOST_WIDE_INT val)
+lsei_next_variable_in_partition (lto_symtab_encoder_iterator *lsei)
{
- 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);
+ lsei_next (lsei);
+ while (!lsei_end_p (*lsei)
+ && (!is_a <varpool_node *> (lsei_node (*lsei))
+ || !lto_symtab_encoder_in_partition_p (lsei->encoder, lsei_node (*lsei))))
+ lsei_next (lsei);
}
-/* 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)
+/* Return an iterator to the first node in LSI. */
+static inline lto_symtab_encoder_iterator
+lsei_start_variable_in_partition (lto_symtab_encoder_t encoder)
{
- HOST_WIDE_INT range = max - min;
- int nbits = floor_log2 (range) + 1;
- HOST_WIDE_INT val = bp_unpack_value (bp, nbits);
+ lto_symtab_encoder_iterator lsei = lsei_start (encoder);
- gcc_checking_assert (range > 0 && range < 0x7fffffff);
+ if (lsei_end_p (lsei))
+ return lsei;
+ if (!is_a <varpool_node *> (lsei_node (lsei))
+ || !lto_symtab_encoder_in_partition_p (encoder, lsei_node (lsei)))
+ lsei_next_variable_in_partition (&lsei);
- if (val < min || val > max)
- lto_value_range_error (purpose, val, min, max);
- return val;
+ return lsei;
}
-/* 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)
+DEFINE_DECL_STREAM_FUNCS (TYPE, type)
+DEFINE_DECL_STREAM_FUNCS (FIELD_DECL, field_decl)
+DEFINE_DECL_STREAM_FUNCS (FN_DECL, fn_decl)
+DEFINE_DECL_STREAM_FUNCS (VAR_DECL, var_decl)
+DEFINE_DECL_STREAM_FUNCS (TYPE_DECL, type_decl)
+DEFINE_DECL_STREAM_FUNCS (NAMESPACE_DECL, namespace_decl)
+DEFINE_DECL_STREAM_FUNCS (LABEL_DECL, label_decl)
#endif /* GCC_LTO_STREAMER_H */
projects / gcc.git / blobdiff