[llvm] [AsmPrinter] Avoid repeated map lookups (NFC) (PR #127576)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/127576

None

>From b3ad6cb3811b9558fd3691090cfa8958f591472f Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Mon, 17 Feb 2025 22:48:55 -0800
Subject: [PATCH] [AsmPrinter] Avoid repeated map lookups (NFC)

---
 llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp b/llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp
index c9efec37b0bc6..d87649c4e6567 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp
@@ -362,8 +362,9 @@ static void clobberRegEntries(InlinedEntity Var, unsigned RegNo,
       FellowRegisters.push_back(Reg);
 
   // Drop all entries that have ended.
+  auto &Entries = LiveEntries[Var];
   for (auto Index : IndicesToErase)
-    LiveEntries[Var].erase(Index);
+    Entries.erase(Index);
 }
 
 /// Add a new debug value for \p Var. Closes all overlapping debug values.