[llvm] aa066e3 - [AMDGPU] Avoid repeated hash lookups (NFC) (#126430)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-09T13:34:28-08:00
New Revision: aa066e36f8c421a64e098601b226f0ecd85500c5

URL: https://github.com/llvm/llvm-project/commit/aa066e36f8c421a64e098601b226f0ecd85500c5
DIFF: https://github.com/llvm/llvm-project/commit/aa066e36f8c421a64e098601b226f0ecd85500c5.diff

LOG: [AMDGPU] Avoid repeated hash lookups (NFC) (#126430)

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp b/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
index 28a27ffc136776..69ddb384e1a400 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
@@ -839,10 +839,9 @@ bool AMDGPUPromoteAllocaImpl::tryPromoteAllocaToVector(AllocaInst &Alloca) {
         return RejectUser(Inst, "mem transfer inst length is non-constant or "
                                 "not a multiple of the vector element size");
 
-      if (!TransferInfo.count(TransferInst)) {
+      if (TransferInfo.try_emplace(TransferInst).second) {
         DeferredInsts.push_back(Inst);
         WorkList.push_back(Inst);
-        TransferInfo[TransferInst] = MemTransferInfo();
       }
 
       auto getPointerIndexOfAlloca = [&](Value *Ptr) -> ConstantInt * {