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| author | Paul Walker <paul.walker@arm.com> | 2024-11-13 12:33:56 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-11-13 12:33:56 +0000 |
| commit | 97298853b4de70dbce9c0a140ac38e3ac179e02e (patch) | |
| tree | 34f75e1e64d0b2282b82bf14d67697a4a6c8c4bb /llvm/lib/IR/Constants.cpp | |
| parent | 8ae2a18736c15e0d0d9d0893b21bce4f3bf581c9 (diff) | |
| download | llvm-97298853b4de70dbce9c0a140ac38e3ac179e02e.zip llvm-97298853b4de70dbce9c0a140ac38e3ac179e02e.tar.gz llvm-97298853b4de70dbce9c0a140ac38e3ac179e02e.tar.bz2 | |
[LLVM][IR] Teach constant integer binop folds about vector ConstantInts. (#115739)
The existing logic mostly works with the main changes being:
* Use getScalarSizeInBits instead of IntegerType::getBitWidth
* Use ConstantInt::get(Type* instead of ConstantInt::get(LLVMContext
Diffstat (limited to 'llvm/lib/IR/Constants.cpp')
| -rw-r--r-- | llvm/lib/IR/Constants.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp index 7ae3978..3d6c4ad 100644 --- a/llvm/lib/IR/Constants.cpp +++ b/llvm/lib/IR/Constants.cpp @@ -441,6 +441,13 @@ Constant *Constant::getAggregateElement(unsigned Elt) const { ? CAZ->getElementValue(Elt) : nullptr; + if (const auto *CI = dyn_cast<ConstantInt>(this)) + return Elt < cast<VectorType>(getType()) + ->getElementCount() + .getKnownMinValue() + ? ConstantInt::get(getContext(), CI->getValue()) + : nullptr; + // FIXME: getNumElements() will fail for non-fixed vector types. if (isa<ScalableVectorType>(getType())) return nullptr; |