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authorH.J. Lu <hongjiu.lu@intel.com>2011-03-18 04:02:25 +0000
committerH.J. Lu <hjl@gcc.gnu.org>2011-03-17 21:02:25 -0700
commit378758560b4267ee5cd338d153ee3b93a7e16c3b (patch)
tree677840469ecfe1fe6a69561b689d124a6f44e54b /gcc/combine.c
parent76069764344e8637046fa002ad98108a24b00271 (diff)
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Revert the last change on cant_combine_insn_p.
2011-03-17 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47725 * combine.c (cant_combine_insn_p): Don't check zero/sign extended hard registers. From-SVN: r171125
Diffstat (limited to 'gcc/combine.c')
-rw-r--r--gcc/combine.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/gcc/combine.c b/gcc/combine.c
index 67aecf1..f9d33b3 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -2137,12 +2137,6 @@ cant_combine_insn_p (rtx insn)
return 0;
src = SET_SRC (set);
dest = SET_DEST (set);
- if (GET_CODE (src) == ZERO_EXTEND
- || GET_CODE (src) == SIGN_EXTEND)
- src = XEXP (src, 0);
- if (GET_CODE (dest) == ZERO_EXTEND
- || GET_CODE (dest) == SIGN_EXTEND)
- dest = XEXP (dest, 0);
if (GET_CODE (src) == SUBREG)
src = SUBREG_REG (src);
if (GET_CODE (dest) == SUBREG)