[llvm-commits] [llvm] r55147 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Bill Wendling]

Author: void
Date: Thu Aug 21 17:36:36 2008
New Revision: 55147

URL: http://llvm.org/viewvc/llvm-project?rev=55147&view=rev
Log:
If part of the mask is "undef", then ignore it as we don't care what goes into 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=55147&r1=55146&r2=55147&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Thu Aug 21 17:36:36 2008
@@ -3479,6 +3479,8 @@
       if (InOrder[i])
         continue;
       SDValue Elt = MaskElts[i];
+      if (Elt.getOpcode() == ISD::UNDEF)
+        continue;
       unsigned EltIdx = cast<ConstantSDNode>(Elt)->getValue();
       SDValue ExtOp = (EltIdx < 8)
         ? DAG.getNode(ISD::EXTRACT_VECTOR_ELT, MVT::i16, V1,