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| author | Roger Sayle <roger@eyesopen.com> | 2004-07-19 20:24:59 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2004-07-19 20:24:59 +0000 |
| commit | 4f1605d2ca37c757a35b3157a55f7b9c5615ae31 (patch) | |
| tree | 51f933aa805e1c5bda05c3519f2d0847aba99a4c /gcc/rtlanal.c | |
| parent | fab62285412aaafdfc4c81e9b581fb57f9d59c99 (diff) | |
| download | gcc-4f1605d2ca37c757a35b3157a55f7b9c5615ae31.zip gcc-4f1605d2ca37c757a35b3157a55f7b9c5615ae31.tar.gz gcc-4f1605d2ca37c757a35b3157a55f7b9c5615ae31.tar.bz2 | |
* rtlanal.c (reg_set_p): Add check for regs_invalidated_by_call.
From-SVN: r84930
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index f3ce004..4cdcb63 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -941,14 +941,10 @@ reg_set_p (rtx reg, rtx insn) if (INSN_P (insn) && (FIND_REG_INC_NOTE (insn, reg) || (CALL_P (insn) - /* We'd like to test call_used_regs here, but rtlanal.c can't - reference that variable due to its use in genattrtab. So - we'll just be more conservative. - - ??? Unless we could ensure that the CALL_INSN_FUNCTION_USAGE - information holds all clobbered registers. */ && ((REG_P (reg) - && REGNO (reg) < FIRST_PSEUDO_REGISTER) + && REGNO (reg) < FIRST_PSEUDO_REGISTER + && TEST_HARD_REG_BIT (regs_invalidated_by_call, + REGNO (reg))) || MEM_P (reg) || find_reg_fusage (insn, CLOBBER, reg))))) return 1; |