[llvm-commits] [llvm] r66039 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

[Bob Wilson]

Author: bwilson
Date: Wed Mar  4 11:47:01 2009
New Revision: 66039

URL: http://llvm.org/viewvc/llvm-project?rev=66039&view=rev
Log:
Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors.
It is an error to call APInt::zext with a size that is equal to the value's
current size, so use zextOrTrunc instead.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp?rev=66039&r1=66038&r2=66039&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Wed Mar  4 11:47:01 2009
@@ -5583,9 +5583,9 @@
     if (OpVal.getOpcode() == ISD::UNDEF)
       SplatUndef |= APInt::getBitsSet(sz, BitPos, BitPos +EltBitSize);
     else if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(OpVal))
-      SplatValue |= APInt(CN->getAPIntValue()).zext(sz) << BitPos;
+      SplatValue |= APInt(CN->getAPIntValue()).zextOrTrunc(sz) << BitPos;
     else if (ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(OpVal))
-      SplatValue |= CN->getValueAPF().bitcastToAPInt().zext(sz) << BitPos;
+      SplatValue |= CN->getValueAPF().bitcastToAPInt().zextOrTrunc(sz) <<BitPos;
      else
       return false;
   }