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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-10-13 22:40:23 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-10-13 22:40:23 +0000 |
| commit | 8e4d0429de3d44a4c5b02b3d27cb0b78520609ba (patch) | |
| tree | 2b931c339474fb7702d609e3b425c1e95dc9f8a9 | |
| parent | 63b2f8c710ec42aa5304cbe8a5e8013e3ac66b8e (diff) | |
Simplify and avoid undefined shift. Based on patch by Ahmed Charles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141903 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 0313f99908..2ac52cfc36 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -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(), |