[llvm] [RISCV] Adjust select shuffle cost to reflect mask creation cost (PR #77963)
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Fri Jan 12 11:16:48 PST 2024
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git-clang-format --diff 5ce067d592b78fd3142364e06bae4da2a3a1e944 e886bb3556d4058dede441a8f3e80c39249e6f82 -- llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
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View the diff from clang-format here.
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diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index 94c895a58a..41cc081a67 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -445,9 +445,8 @@ InstructionCost RISCVTTIImpl::getShuffleCost(TTI::ShuffleKind Kind,
// cost for small masks and most shuffles are small. At worst, this cost
// should be a very small constant for the constant pool load. As such,
// we may bias towards large selects slightly more than truely warranted.
- return LT.first *
- (2 + getRISCVInstructionCost({RISCV::VMERGE_VVM},
- LT.second, CostKind));
+ return LT.first * (2 + getRISCVInstructionCost({RISCV::VMERGE_VVM},
+ LT.second, CostKind));
}
case TTI::SK_Broadcast: {
bool HasScalar = (Args.size() > 0) && (Operator::getOpcode(Args[0]) ==
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https://github.com/llvm/llvm-project/pull/77963
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