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| author | Alan Modra <amodra@bigpond.net.au> | 2003-12-06 12:22:31 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2003-12-06 22:52:31 +1030 |
| commit | df2ef49bbf1d8e81db688fb49ddaf7e614b71961 (patch) | |
| tree | 806d63a055d1e8b44cd4e930d2d4c903a4cfaee2 /gcc/basic-block.h | |
| parent | 929a3294725cb55f539bde39b50672cf24055c07 (diff) | |
| download | gcc-df2ef49bbf1d8e81db688fb49ddaf7e614b71961.zip gcc-df2ef49bbf1d8e81db688fb49ddaf7e614b71961.tar.gz gcc-df2ef49bbf1d8e81db688fb49ddaf7e614b71961.tar.bz2 | |
re PR rtl-optimization/13169 (asm using r30 or r31 confuses global_alloc)
PR 13169
* basic-block.h (PROP_ASM_SCAN): Define.
* final.c (regs_asm_clobbered): New array.
* regs.h (regs_asm_clobbered): Declare.
* flow.c (life_analysis): Init it.
(mark_set_regs): Set PROP_ASM_SCAN for asms.
(mark_set_1): Set regs_asm_clobbered.
* global.c (global_alloc): Don't set eliminable_regset when
regs_asm_clobbered.
From-SVN: r74363
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 221b246..365711a 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -477,6 +477,8 @@ enum update_life_extent #define PROP_AUTOINC 64 /* Create autoinc mem references. */ #define PROP_EQUAL_NOTES 128 /* Take into account REG_EQUAL notes. */ #define PROP_SCAN_DEAD_STORES 256 /* Scan for dead code. */ +#define PROP_ASM_SCAN 512 /* Internal flag used within flow.c + to flag analysis of asms. */ #define PROP_FINAL (PROP_DEATH_NOTES | PROP_LOG_LINKS \ | PROP_REG_INFO | PROP_KILL_DEAD_CODE \ | PROP_SCAN_DEAD_CODE | PROP_AUTOINC \ |