diff options
| author | Eric Botcazou <ebotcazou@adacore.com> | 2010-10-13 18:18:36 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2010-10-13 18:18:36 +0000 |
| commit | b1ba284ce3661918d857e9ea26bc8b1b428d6669 (patch) | |
| tree | 7d2875c2390a1a897e97fc4c5055bba42e4890df /gcc | |
| parent | 879b9073c87cea54033e137b1ac68807ee040bcd (diff) | |
| download | gcc-b1ba284ce3661918d857e9ea26bc8b1b428d6669.zip gcc-b1ba284ce3661918d857e9ea26bc8b1b428d6669.tar.gz gcc-b1ba284ce3661918d857e9ea26bc8b1b428d6669.tar.bz2 | |
cse.c (cse_insn): Fix thinko in the canonicalization of USE insns.
* cse.c (cse_insn): Fix thinko in the canonicalization of USE insns.
Canonicalize input operands of ASM_OPERANDS insns.
From-SVN: r165429
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cse.c | 15 |
2 files changed, 18 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a2979ca..7a434ac 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-10-13 Eric Botcazou <ebotcazou@adacore.com> + + * cse.c (cse_insn): Fix thinko in the canonicalization of USE insns. + Canonicalize input operands of ASM_OPERANDS insns. + 2010-10-13 Richard Guenther <rguenther@suse.de> PR tree-optimization/45788 @@ -4338,12 +4338,23 @@ cse_insn (rtx insn) if (MEM_P (XEXP (x, 0))) canon_reg (XEXP (x, 0), insn); } - /* Canonicalize a USE of a pseudo register or memory location. */ else if (GET_CODE (x) == USE && ! (REG_P (XEXP (x, 0)) && REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER)) - canon_reg (XEXP (x, 0), insn); + canon_reg (x, insn); + else if (GET_CODE (x) == ASM_OPERANDS) + { + for (i = ASM_OPERANDS_INPUT_LENGTH (x) - 1; i >= 0; i--) + { + rtx input = ASM_OPERANDS_INPUT (x, i); + if (!(REG_P (input) && REGNO (input) < FIRST_PSEUDO_REGISTER)) + { + input = canon_reg (input, insn); + validate_change (insn, &ASM_OPERANDS_INPUT (x, i), input, 1); + } + } + } else if (GET_CODE (x) == CALL) { /* The result of apply_change_group can be ignored; see canon_reg. */ |