[llvm] [X86] Avoid repeated hash lookups (NFC) (PR #127748)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/127748

None

>From af2063ad192d5265541540022097a26c22d98904 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Tue, 18 Feb 2025 08:46:43 -0800
Subject: [PATCH] [X86] Avoid repeated hash lookups (NFC)

---
 llvm/lib/Target/X86/X86PadShortFunction.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Target/X86/X86PadShortFunction.cpp b/llvm/lib/Target/X86/X86PadShortFunction.cpp
index c43fd97a055fc..2859195c6c26e 100644
--- a/llvm/lib/Target/X86/X86PadShortFunction.cpp
+++ b/llvm/lib/Target/X86/X86PadShortFunction.cpp
@@ -163,7 +163,8 @@ void PadShortFunc::findReturns(MachineBasicBlock *MBB, unsigned int Cycles) {
     return;
 
   if (hasReturn) {
-    ReturnBBs[MBB] = std::max(ReturnBBs[MBB], Cycles);
+    unsigned int &NumCycles = ReturnBBs[MBB];
+    NumCycles = std::max(NumCycles, Cycles);
     return;
   }