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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-12-17 20:02:06 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-12-17 20:02:06 +0000 |
| commit | f14647fb381f6ba09824c380ed19c4353deef465 (patch) | |
| tree | 30cdf31329355395e7bba2e456ef178eb95f5076 /gcc/sched.c | |
| parent | ab0d71ce501550d5d4409680f427cd1f8e59af82 (diff) | |
| download | ppe42-gcc-f14647fb381f6ba09824c380ed19c4353deef465.tar.gz ppe42-gcc-f14647fb381f6ba09824c380ed19c4353deef465.zip | |
(update_flow_info): When add REG_DEAD notes for dest of
last insn, add check for global_regs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@13318 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/sched.c')
| -rw-r--r-- | gcc/sched.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index 71cf52ff615..356071177d1 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -4629,6 +4629,10 @@ update_flow_info (notes, first, last, orig_insn) dest = XEXP (dest, 0); if (GET_CODE (dest) == REG + /* Global registers are always live, so the code below does not + apply to them. */ + && (REGNO (dest) >= FIRST_PSEUDO_REGISTER + || ! global_regs[REGNO (dest)]) && ! reg_overlap_mentioned_p (dest, SET_SRC (set))) { for (insn = PREV_INSN (last); ; insn = PREV_INSN (insn)) |
