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| author | Richard Henderson <rth@redhat.com> | 2011-07-23 12:44:19 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2011-07-23 12:44:19 -0700 |
| commit | 0be7e7a6dbb4cdf48e76bf9b38f42b95ebf4d752 (patch) | |
| tree | 389d88dc095866e7b7f73e8f1553aa55bd3617a1 /gcc/basic-block.h | |
| parent | e01705517ac38e207e8f52610a46ad0c4aca61e0 (diff) | |
| download | gcc-0be7e7a6dbb4cdf48e76bf9b38f42b95ebf4d752.zip gcc-0be7e7a6dbb4cdf48e76bf9b38f42b95ebf4d752.tar.gz gcc-0be7e7a6dbb4cdf48e76bf9b38f42b95ebf4d752.tar.bz2 | |
bb-reorder: Split EH edges crossing partitions.
From-SVN: r176696
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 29c1167..c03129c 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -65,31 +65,34 @@ DEF_VEC_P(edge); DEF_VEC_ALLOC_P(edge,gc); DEF_VEC_ALLOC_P(edge,heap); -#define EDGE_FALLTHRU 1 /* 'Straight line' flow */ -#define EDGE_ABNORMAL 2 /* Strange flow, like computed +/* Always update the table in cfg.c dump_edge_info. */ +#define EDGE_FALLTHRU 0x0001 /* 'Straight line' flow */ +#define EDGE_ABNORMAL 0x0002 /* Strange flow, like computed label, or eh */ -#define EDGE_ABNORMAL_CALL 4 /* Call with abnormal exit +#define EDGE_ABNORMAL_CALL 0x0004 /* Call with abnormal exit like an exception, or sibcall */ -#define EDGE_EH 8 /* Exception throw */ -#define EDGE_FAKE 16 /* Not a real edge (profile.c) */ -#define EDGE_DFS_BACK 32 /* A backwards edge */ -#define EDGE_CAN_FALLTHRU 64 /* Candidate for straight line +#define EDGE_EH 0x0008 /* Exception throw */ +#define EDGE_FAKE 0x0010 /* Not a real edge (profile.c) */ +#define EDGE_DFS_BACK 0x0020 /* A backwards edge */ +#define EDGE_CAN_FALLTHRU 0x0040 /* Candidate for straight line flow. */ -#define EDGE_IRREDUCIBLE_LOOP 128 /* Part of irreducible loop. */ -#define EDGE_SIBCALL 256 /* Edge from sibcall to exit. */ -#define EDGE_LOOP_EXIT 512 /* Exit of a loop. */ -#define EDGE_TRUE_VALUE 1024 /* Edge taken when controlling +#define EDGE_IRREDUCIBLE_LOOP 0x0080 /* Part of irreducible loop. */ +#define EDGE_SIBCALL 0x0100 /* Edge from sibcall to exit. */ +#define EDGE_LOOP_EXIT 0x0200 /* Exit of a loop. */ +#define EDGE_TRUE_VALUE 0x0400 /* Edge taken when controlling predicate is nonzero. */ -#define EDGE_FALSE_VALUE 2048 /* Edge taken when controlling +#define EDGE_FALSE_VALUE 0x0800 /* Edge taken when controlling predicate is zero. */ -#define EDGE_EXECUTABLE 4096 /* Edge is executable. Only +#define EDGE_EXECUTABLE 0x1000 /* Edge is executable. Only valid during SSA-CCP. */ -#define EDGE_CROSSING 8192 /* Edge crosses between hot +#define EDGE_CROSSING 0x2000 /* Edge crosses between hot and cold sections, when we do partitioning. */ -#define EDGE_ALL_FLAGS 16383 +#define EDGE_PRESERVE 0x4000 /* Never merge blocks via this edge. */ +#define EDGE_ALL_FLAGS 0x7fff -#define EDGE_COMPLEX (EDGE_ABNORMAL | EDGE_ABNORMAL_CALL | EDGE_EH) +#define EDGE_COMPLEX \ + (EDGE_ABNORMAL | EDGE_ABNORMAL_CALL | EDGE_EH | EDGE_PRESERVE) /* Counter summary from the last set of coverage counts read by profile.c. */ @@ -203,7 +206,9 @@ DEF_VEC_ALLOC_P(basic_block,heap); the compilation, so they are never cleared. All other flags may be cleared by clear_bb_flags(). It is generally - a bad idea to rely on any flags being up-to-date. */ + a bad idea to rely on any flags being up-to-date. + + Always update the table in cfg.c dump_bb_info. */ enum bb_flags { |