[llvm] [AArch64] Add constant pool load cost for non-uniform vector constant stores (PR #217402)
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Wed Aug 19 10:47:22 PDT 2026
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diff --git a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
index 96f10aa80..91db70473 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
@@ -5671,9 +5671,9 @@ InstructionCost AArch64TTIImpl::getMemoryOpCost(unsigned Opcode, Type *Ty,
InstructionCost ConstMatCost = 0;
if (Opcode == Instruction::Store && OpInfo.isConstant() &&
!OpInfo.isUniform() && isa<FixedVectorType>(Ty))
- ConstMatCost = getMemoryOpCost(Instruction::Load, Ty,
- DL.getABITypeAlign(Ty),
- /*AddressSpace=*/0, CostKind);
+ ConstMatCost =
+ getMemoryOpCost(Instruction::Load, Ty, DL.getABITypeAlign(Ty),
+ /*AddressSpace=*/0, CostKind);
if (ST->isMisaligned128StoreSlow() && Opcode == Instruction::Store &&
LT.second.is128BitVector() && Alignment < Align(16)) {
@@ -5698,8 +5698,7 @@ InstructionCost AArch64TTIImpl::getMemoryOpCost(unsigned Opcode, Type *Ty,
if (VT == MVT::v4i8)
return ConstMatCost + 2;
// Otherwise we need to scalarize.
- return ConstMatCost +
- cast<FixedVectorType>(Ty)->getNumElements() * 2;
+ return ConstMatCost + cast<FixedVectorType>(Ty)->getNumElements() * 2;
}
EVT EltVT = VT.getVectorElementType();
unsigned EltSize = EltVT.getScalarSizeInBits();
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https://github.com/llvm/llvm-project/pull/217402
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