[llvm] 66c31f5 - [AMDGPU] Avoid repeated hash lookups (NFC) (#126401)
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Sat Feb 8 23:17:09 PST 2025
Author: Kazu Hirata
Date: 2025-02-08T23:17:06-08:00
New Revision: 66c31f5d024f3ec9f9afa74c340ba0a4e0776823
URL: https://github.com/llvm/llvm-project/commit/66c31f5d024f3ec9f9afa74c340ba0a4e0776823
DIFF: https://github.com/llvm/llvm-project/commit/66c31f5d024f3ec9f9afa74c340ba0a4e0776823.diff
LOG: [AMDGPU] Avoid repeated hash lookups (NFC) (#126401)
This patch just cleans up the "if" condition. Further cleanups are
left to subsequent patches.
Added:
Modified:
llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp b/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp
index f4e651ec477d30a..b8109db821bcc38 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULateCodeGenPrepare.cpp
@@ -367,11 +367,11 @@ bool LiveRegOptimizer::optimizeLiveType(
for (Instruction *U : Uses) {
// Replace all converted operands for a use.
for (auto [OpIdx, Op] : enumerate(U->operands())) {
- if (ValMap.contains(Op) && ValMap[Op]) {
+ if (Value *Val = ValMap.lookup(Op)) {
Value *NewVal = nullptr;
if (BBUseValMap.contains(U->getParent()) &&
- BBUseValMap[U->getParent()].contains(ValMap[Op]))
- NewVal = BBUseValMap[U->getParent()][ValMap[Op]];
+ BBUseValMap[U->getParent()].contains(Val))
+ NewVal = BBUseValMap[U->getParent()][Val];
else {
BasicBlock::iterator InsertPt = U->getParent()->getFirstNonPHIIt();
// We may pick up ops that were previously converted for users in
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