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Simplify and avoid undefined shift. Based on patch by Ahmed Charles.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141903 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2011-10-13 22:40:23 +00:00
parent 63b2f8c710
commit 8e4d0429de
1 changed files with 1 additions and 2 deletions
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lib/Target/ARM/ARMISelLowering.cpp
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@ -3944,8 +3944,7 @@ SDValue ARMTargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG,
}
// Try an immediate VMVN.
uint64_t NegatedImm = (SplatBits.getZExtValue() ^
((1LL << SplatBitSize) - 1));
uint64_t NegatedImm = (~SplatBits).getZExtValue();
Val = isNEONModifiedImm(NegatedImm,
SplatUndef.getZExtValue(), SplatBitSize,
DAG, VmovVT, VT.is128BitVector(),