[llvm] [MCA] Use a range-based for loop (NFC) (PR #141187)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/141187

None

>From 834ebbe4165f634b7a4b4bf929b99257c79814bf Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Wed, 21 May 2025 20:20:32 -0700
Subject: [PATCH] [MCA] Use a range-based for loop (NFC)

---
 llvm/lib/MCA/Stages/ExecuteStage.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/MCA/Stages/ExecuteStage.cpp b/llvm/lib/MCA/Stages/ExecuteStage.cpp
index 7714d4ff8aede..49e0b8ee35e84 100644
--- a/llvm/lib/MCA/Stages/ExecuteStage.cpp
+++ b/llvm/lib/MCA/Stages/ExecuteStage.cpp
@@ -275,9 +275,9 @@ void ExecuteStage::notifyReservedOrReleasedBuffers(const InstRef &IR,
     return;
 
   SmallVector<unsigned, 4> BufferIDs(llvm::popcount(UsedBuffers), 0);
-  for (unsigned I = 0, E = BufferIDs.size(); I < E; ++I) {
+  for (unsigned &ID : BufferIDs) {
     uint64_t CurrentBufferMask = UsedBuffers & (-UsedBuffers);
-    BufferIDs[I] = HWS.getResourceID(CurrentBufferMask);
+    ID = HWS.getResourceID(CurrentBufferMask);
     UsedBuffers ^= CurrentBufferMask;
   }