diff options
Diffstat (limited to 'gcc/lto-streamer.c')
| -rw-r--r-- | gcc/lto-streamer.c | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/gcc/lto-streamer.c b/gcc/lto-streamer.c index 763ecc5e903..0608b33a76b 100644 --- a/gcc/lto-streamer.c +++ b/gcc/lto-streamer.c @@ -37,6 +37,9 @@ along with GCC; see the file COPYING3. If not see /* 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; @@ -568,7 +571,7 @@ lto_streamer_cache_create (void) /* Load all the well-known tree nodes that are always created by the compiler on startup. This prevents writing them out unnecessarily. */ - lto_preload_common_nodes (cache); + streamer_hooks.preload_common_nodes (cache); return cache; } @@ -713,3 +716,52 @@ lto_check_version (int major, int minor) major, minor, LTO_major_version, LTO_minor_version); } + + +/* Return true if EXPR is a tree node that can be written to disk. */ +static inline bool +lto_is_streamable (tree expr) +{ + 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 != OMP_CLAUSE + && code != OPTIMIZATION_NODE + && (code == CASE_LABEL_EXPR + || code == DECL_EXPR + || TREE_CODE_CLASS (code) != tcc_statement); +} + + +/* Initialize all the streamer hooks used for streaming GIMPLE. */ + +void +lto_streamer_hooks_init (void) +{ + streamer_hooks_init (); + streamer_hooks.name = "gimple"; + streamer_hooks.preload_common_nodes = lto_preload_common_nodes; + streamer_hooks.is_streamable = lto_is_streamable; + 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)); +} |