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| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-05-13 13:34:17 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-05-13 13:34:17 +0000 |
| commit | 4b8784dc6196a68be5fc99cfbee99a6af08a0414 (patch) | |
| tree | 43d9dcaef77c1333748623bb47bef2b3be06d40c /gcc/basic-block.h | |
| parent | f4fe255aa183bebd7143911af9c8082f4e93ed9c (diff) | |
| download | gcc-4b8784dc6196a68be5fc99cfbee99a6af08a0414.tar.gz | |
PR rtl-optimization/20756:
* basic-block.h (PROP_DEAD_INSN): Define.
* flow.c (propagate_one_insn): Set during mark_set_regs call
for a dead insn.
(mark_set_1): Emit a clobber when we are about to delete a dead insn
that kills a live register.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99657 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 4a71d2515b6..5565053337a 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -806,6 +806,8 @@ enum update_life_extent #define PROP_SCAN_DEAD_STORES 128 /* Scan for dead code. */ #define PROP_ASM_SCAN 256 /* Internal flag used within flow.c to flag analysis of asms. */ +#define PROP_DEAD_INSN 1024 /* Internal flag used within flow.c + to flag analysis of dead insn. */ #define PROP_FINAL (PROP_DEATH_NOTES | PROP_LOG_LINKS \ | PROP_REG_INFO | PROP_KILL_DEAD_CODE \ | PROP_SCAN_DEAD_CODE | PROP_AUTOINC \ |