[llvm] 5addbf0 - [AArch64] Avoid repeated hash lookups (NFC) (#130542)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-03-09T23:15:22-07:00
New Revision: 5addbf0c60bf941b081726c4a6a9641ec9bf425f

URL: https://github.com/llvm/llvm-project/commit/5addbf0c60bf941b081726c4a6a9641ec9bf425f
DIFF: https://github.com/llvm/llvm-project/commit/5addbf0c60bf941b081726c4a6a9641ec9bf425f.diff

LOG: [AArch64] Avoid repeated hash lookups (NFC) (#130542)

Added: 
    

Modified: 
    llvm/lib/Target/AArch64/AArch64FastISel.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/AArch64/AArch64FastISel.cpp b/llvm/lib/Target/AArch64/AArch64FastISel.cpp
index 8961283fe7449..5ef439f8224c1 100644
--- a/llvm/lib/Target/AArch64/AArch64FastISel.cpp
+++ b/llvm/lib/Target/AArch64/AArch64FastISel.cpp
@@ -346,12 +346,10 @@ Register AArch64FastISel::fastMaterializeAlloca(const AllocaInst *AI) {
          "Alloca should always return a pointer.");
 
   // Don't handle dynamic allocas.
-  if (!FuncInfo.StaticAllocaMap.count(AI))
+  auto SI = FuncInfo.StaticAllocaMap.find(AI);
+  if (SI == FuncInfo.StaticAllocaMap.end())
     return Register();
 
-  DenseMap<const AllocaInst *, int>::iterator SI =
-      FuncInfo.StaticAllocaMap.find(AI);
-
   if (SI != FuncInfo.StaticAllocaMap.end()) {
     Register ResultReg = createResultReg(&AArch64::GPR64spRegClass);
     BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, MIMD, TII.get(AArch64::ADDXri),