[llvm] [LoopIdiom] Strip dead check in processLoopMemSet (NFC) (PR #141100)

Ramkumar Ramachandra via llvm-commits llvm-commits at lists.llvm.org
Thu May 22 09:50:39 PDT 2025


https://github.com/artagnon created https://github.com/llvm/llvm-project/pull/141100

None

>From 98625d42aa1a9e36d85585abebf050524161e2d4 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <ramkumar.ramachandra at codasip.com>
Date: Thu, 22 May 2025 17:47:00 +0100
Subject: [PATCH] [LoopIdiom] Strip dead check in processLoopMemSet (NFC)

---
 llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
index 0eaed2eddcdbb..95ac0a61b34bd 100644
--- a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
@@ -867,8 +867,6 @@ bool LoopIdiomRecognize::processLoopMemSet(MemSetInst *MSI,
 
   const SCEV *PointerStrideSCEV = Ev->getOperand(1);
   const SCEV *MemsetSizeSCEV = SE->getSCEV(MSI->getLength());
-  if (!PointerStrideSCEV || !MemsetSizeSCEV)
-    return false;
 
   bool IsNegStride = false;
   const bool IsConstantSize = isa<ConstantInt>(MSI->getLength());



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