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| author | Jim Wilson <wilson@gcc.gnu.org> | 1996-12-17 12:02:06 -0800 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1996-12-17 12:02:06 -0800 |
| commit | a2f2ce96f8cb7b7a067a124de2eb3b1a4b9aa8fb (patch) | |
| tree | 30cdf31329355395e7bba2e456ef178eb95f5076 /gcc/sched.c | |
| parent | 0a49cbd463bcfad0d9ee08a3bc5bbc14b81091a7 (diff) | |
| download | gcc-a2f2ce96f8cb7b7a067a124de2eb3b1a4b9aa8fb.zip gcc-a2f2ce96f8cb7b7a067a124de2eb3b1a4b9aa8fb.tar.gz gcc-a2f2ce96f8cb7b7a067a124de2eb3b1a4b9aa8fb.tar.bz2 | |
(update_flow_info): When add REG_DEAD notes for dest of
last insn, add check for global_regs.
From-SVN: r13318
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 71cf52f..3560711 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)) |