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[x86] Fix a bug in r216319 where I was missing a 'break'. 

This actually was caught by existing tests but those tests were disabled
with an XFAIL because of PR20736. While working on fixing that,
I noticed the test failure, and tracked it down to this.

We even have a really nice Clang warning that would have caught this but
it isn't enabled in LLVM! =[ I may look at enabling it.

llvm-svn: 216391
This commit is contained in:
Chandler Carruth 2014-08-25 18:06:11 +00:00
parent e2a1fa35df
commit 70f81a98ca
1 changed files with 2 additions and 0 deletions
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2
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -19467,11 +19467,13 @@ combineRedundantDWordShuffle(SDValue N, MutableArrayRef<int> Mask,
case X86ISD::UNPCKL:
case X86ISD::UNPCKH:
V = DAG.getNode(W.getOpcode(), DL, W.getValueType(), V, V);
break;
case X86ISD::PSHUFD:
case X86ISD::PSHUFLW:
case X86ISD::PSHUFHW:
V = DAG.getNode(W.getOpcode(), DL, W.getValueType(), V, W.getOperand(1));
break;
}
}
if (V.getValueType() != N.getValueType())