[llvm-commits] [llvm] r136324 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Bruno Cardoso Lopes]

Author: bruno
Date: Wed Jul 27 20:26:53 2011
New Revision: 136324

URL: http://llvm.org/viewvc/llvm-project?rev=136324&view=rev
Log:
Invert the subvector insertion to be more likely to be taken as a COPY

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=136324&r1=136323&r2=136324&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Wed Jul 27 20:26:53 2011
@@ -4809,9 +4809,9 @@
                                 NumElems/2);
 
     // Recreate the wider vector with the lower and upper part.
-    SDValue Vec = Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, VT), Upper,
-                                DAG.getConstant(NumElems/2, MVT::i32), DAG, dl);
-    return Insert128BitVector(Vec, Lower, DAG.getConstant(0, MVT::i32),
+    SDValue Vec = Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, VT), Lower,
+                                DAG.getConstant(0, MVT::i32), DAG, dl);
+    return Insert128BitVector(Vec, Upper, DAG.getConstant(NumElems/2, MVT::i32),
                               DAG, dl);
   }