[llvm] r216391 - [x86] Fix a bug in r216319 where I was missing a 'break'.

[Chandler Carruth]

Author: chandlerc
Date: Mon Aug 25 13:06:11 2014
New Revision: 216391

URL: http://llvm.org/viewvc/llvm-project?rev=216391&view=rev
Log:
[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.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=216391&r1=216390&r2=216391&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Aug 25 13:06:11 2014
@@ -19467,11 +19467,13 @@ combineRedundantDWordShuffle(SDValue N,
     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())