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| author | Eli Friedman <eli.friedman@gmail.com> | 2010-08-02 00:18:19 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2010-08-02 00:18:19 +0000 |
| commit | e3837014d6793cafdeba99c21dd5682f16131fd5 (patch) | |
| tree | 88b9b33b2cfaf2f717ddf15c6f7d8e03fec067be /lib/Target/PowerPC | |
| parent | 666b40224324f99b011dc7ee08acf254f718e7b1 (diff) | |
| download | external_llvm-e3837014d6793cafdeba99c21dd5682f16131fd5.zip external_llvm-e3837014d6793cafdeba99c21dd5682f16131fd5.tar.gz external_llvm-e3837014d6793cafdeba99c21dd5682f16131fd5.tar.bz2 | |
PR7781: Fix incorrect shifting in PPCTargetLowering::LowerBUILD_VECTOR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109998 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index d47d989..33d1441 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -3942,17 +3942,17 @@ SDValue PPCTargetLowering::LowerBUILD_VECTOR(SDValue Op, } // t = vsplti c, result = vsldoi t, t, 1 - if (SextVal == ((i << 8) | (i >> (TypeShiftAmt-8)))) { + if (SextVal == ((i << 8) | (i < 0 ? 0xFF : 0))) { SDValue T = BuildSplatI(i, SplatSize, MVT::v16i8, DAG, dl); return BuildVSLDOI(T, T, 1, Op.getValueType(), DAG, dl); } // t = vsplti c, result = vsldoi t, t, 2 - if (SextVal == ((i << 16) | (i >> (TypeShiftAmt-16)))) { + if (SextVal == ((i << 16) | (i < 0 ? 0xFFFF : 0))) { SDValue T = BuildSplatI(i, SplatSize, MVT::v16i8, DAG, dl); return BuildVSLDOI(T, T, 2, Op.getValueType(), DAG, dl); } // t = vsplti c, result = vsldoi t, t, 3 - if (SextVal == ((i << 24) | (i >> (TypeShiftAmt-24)))) { + if (SextVal == ((i << 24) | (i < 0 ? 0xFFFFFF : 0))) { SDValue T = BuildSplatI(i, SplatSize, MVT::v16i8, DAG, dl); return BuildVSLDOI(T, T, 3, Op.getValueType(), DAG, dl); } |