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| author | Quentin Dian <dianqk@dianqk.net> | 2024-03-06 06:16:28 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-03-06 06:16:28 +0800 |
| commit | e96c0c1d5e0a9916098b1a31acb006ea6c1108fb (patch) | |
| tree | 719c5383969df468d5a423559597d64b987420fc /llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp | |
| parent | f51ade25b9205efee09a4915031848cebe772805 (diff) | |
| download | llvm-e96c0c1d5e0a9916098b1a31acb006ea6c1108fb.zip llvm-e96c0c1d5e0a9916098b1a31acb006ea6c1108fb.tar.gz llvm-e96c0c1d5e0a9916098b1a31acb006ea6c1108fb.tar.bz2 | |
[InstCombine] Fix shift calculation in InstCombineCasts (#84027)
Fixes #84025.
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp index 33ed1d5..45afa63 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -2167,14 +2167,14 @@ static bool collectInsertionElements(Value *V, unsigned Shift, Type *ElementIntTy = IntegerType::get(C->getContext(), ElementSize); for (unsigned i = 0; i != NumElts; ++i) { - unsigned ShiftI = Shift + i * ElementSize; + unsigned ShiftI = i * ElementSize; Constant *Piece = ConstantFoldBinaryInstruction( Instruction::LShr, C, ConstantInt::get(C->getType(), ShiftI)); if (!Piece) return false; Piece = ConstantExpr::getTrunc(Piece, ElementIntTy); - if (!collectInsertionElements(Piece, ShiftI, Elements, VecEltTy, + if (!collectInsertionElements(Piece, ShiftI + Shift, Elements, VecEltTy, isBigEndian)) return false; } |