[llvm] [Support] Avoid repeated hash lookups (NFC) (PR #130891)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata updated https://github.com/llvm/llvm-project/pull/130891

>From eec6fce3e9627a8e776f22c1b98bbb179650052d Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Tue, 11 Mar 2025 09:05:08 -0700
Subject: [PATCH 1/2] [Support] Avoid repeated hash lookups (NFC)

---
 llvm/lib/Support/DebugCounter.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/llvm/lib/Support/DebugCounter.cpp b/llvm/lib/Support/DebugCounter.cpp
index a5d8a704bdd21..3a5983c4788a1 100644
--- a/llvm/lib/Support/DebugCounter.cpp
+++ b/llvm/lib/Support/DebugCounter.cpp
@@ -208,9 +208,10 @@ void DebugCounter::print(raw_ostream &OS) const {
   OS << "Counters and values:\n";
   for (auto &CounterName : CounterNames) {
     unsigned CounterID = getCounterId(std::string(CounterName));
-    OS << left_justify(RegisteredCounters[CounterID], 32) << ": {"
-       << Us.Counters[CounterID].Count << ",";
-    printChunks(OS, Us.Counters[CounterID].Chunks);
+    auto &C = Us.Counters[CounterID];
+    OS << left_justify(RegisteredCounters[CounterID], 32) << ": {" << C.Count
+       << ",";
+    printChunks(OS, C.Chunks);
     OS << "}\n";
   }
 }

>From 9b825ab0c832ca248683537c5d36b4f9b991fcf2 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Wed, 12 Mar 2025 03:00:47 -0700
Subject: [PATCH 2/2] Update DebugCounter.cpp

Co-authored-by: Nikita Popov <github at npopov.com>
---
 llvm/lib/Support/DebugCounter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Support/DebugCounter.cpp b/llvm/lib/Support/DebugCounter.cpp
index 3a5983c4788a1..a6de07a55482a 100644
--- a/llvm/lib/Support/DebugCounter.cpp
+++ b/llvm/lib/Support/DebugCounter.cpp
@@ -208,7 +208,7 @@ void DebugCounter::print(raw_ostream &OS) const {
   OS << "Counters and values:\n";
   for (auto &CounterName : CounterNames) {
     unsigned CounterID = getCounterId(std::string(CounterName));
-    auto &C = Us.Counters[CounterID];
+    const CounterInfo &C = Us.Counters[CounterID];
     OS << left_justify(RegisteredCounters[CounterID], 32) << ": {" << C.Count
        << ",";
     printChunks(OS, C.Chunks);