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[LV][NFC] Modify code comments 

Reviewed By: jacquesguan

Differential Revision: https://reviews.llvm.org/D132093
This commit is contained in:
liqinweng 2022-08-23 12:13:06 +08:00
parent 9181ab9223
commit eaa539afa1
2 changed files with 4 additions and 3 deletions
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2
llvm/include/llvm/Analysis/TargetTransformInfo.h
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@ -1291,7 +1291,7 @@ public:
/// Calculate the cost of an extended reduction pattern, similar to
/// getArithmeticReductionCost of a reduction with an extension.
/// This is the cost of as:
/// ResTy vecreduce(ext(Ty A)).
/// ResTy vecreduce.opcode(ext(Ty A)).
InstructionCost getExtendedReductionCost(
unsigned Opcode, bool IsUnsigned, Type *ResTy, VectorType *Ty,
Optional<FastMathFlags> FMF,

5
llvm/include/llvm/CodeGen/BasicTTIImpl.h
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@ -2350,7 +2350,7 @@ public:
Optional<FastMathFlags> FMF,
TTI::TargetCostKind CostKind) {
// Without any native support, this is equivalent to the cost of
// vecreduce.op(ext).
// vecreduce.opcode(ext(Ty A)).
VectorType *ExtTy = VectorType::get(ResTy, Ty);
InstructionCost RedCost =
thisT()->getArithmeticReductionCost(Opcode, ExtTy, FMF, CostKind);
@ -2365,7 +2365,8 @@ public:
VectorType *Ty,
TTI::TargetCostKind CostKind) {
// Without any native support, this is equivalent to the cost of
// vecreduce.add(mul(ext, ext)).
// vecreduce.add(mul(ext(Ty A), ext(Ty B))) or
// vecreduce.add(mul(A, B)).
VectorType *ExtTy = VectorType::get(ResTy, Ty);
InstructionCost RedCost = thisT()->getArithmeticReductionCost(
Instruction::Add, ExtTy, None, CostKind);