[llvm] [GlobalISel] Avoid repeated hash lookups (NFC) (PR #128633)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/128633

None

>From 1cf77eabcafab430001856a701f1b217c7dea87c Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Mon, 24 Feb 2025 01:03:25 -0800
Subject: [PATCH] [GlobalISel] Avoid repeated hash lookups (NFC)

---
 llvm/lib/CodeGen/GlobalISel/LegacyLegalizerInfo.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/CodeGen/GlobalISel/LegacyLegalizerInfo.cpp b/llvm/lib/CodeGen/GlobalISel/LegacyLegalizerInfo.cpp
index 9841c8ae1ffb2..05923e5fc97cc 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegacyLegalizerInfo.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegacyLegalizerInfo.cpp
@@ -308,9 +308,10 @@ LegacyLegalizerInfo::findScalarLegalAction(const InstrAspect &Aspect) const {
   ArrayRef<SizeAndActionsVec> Actions;
   if (Aspect.Type.isPointer()) {
     auto &PA = AddrSpace2PointerActions[OpcodeIdx];
-    if (PA.find(Aspect.Type.getAddressSpace()) == PA.end())
+    auto It = PA.find(Aspect.Type.getAddressSpace());
+    if (It == PA.end())
       return {NotFound, LLT()};
-    Actions = PA.find(Aspect.Type.getAddressSpace())->second;
+    Actions = It->second;
   } else {
     Actions = ScalarActions[OpcodeIdx];
   }