[llvm] 059ada4 - [PreISelintrinsicLowering] getTypeSizeInBits/8 => getTypeAllocSize in memset.pattern lowering

[Alex Bradbury via llvm-commits]

Author: Alex Bradbury
Date: 2025-03-12T12:18:03Z
New Revision: 059ada405c1ebb9dc8a9c370d97ff0f447ba8b6c

URL: https://github.com/llvm/llvm-project/commit/059ada405c1ebb9dc8a9c370d97ff0f447ba8b6c
DIFF: https://github.com/llvm/llvm-project/commit/059ada405c1ebb9dc8a9c370d97ff0f447ba8b6c.diff

LOG: [PreISelintrinsicLowering] getTypeSizeInBits/8 => getTypeAllocSize in memset.pattern lowering

As noted during review of #129329.

Added: 
    

Modified: 
    llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp b/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
index 27fa0b43d74f6..6601e70e495e6 100644
--- a/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
+++ b/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
@@ -415,8 +415,7 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(Function &F) const {
       GV->setAlignment(Align(16));
       Value *PatternPtr = GV;
       Value *NumBytes = Builder.CreateMul(
-          Builder.getInt64(DL.getTypeSizeInBits(Memset->getValue()->getType()) /
-                           8),
+          Builder.getInt64(DL.getTypeAllocSize(Memset->getValue()->getType())),
           Memset->getLength());
       CallInst *MemsetPattern16Call =
           Builder.CreateCall(MSP, {Memset->getRawDest(), PatternPtr, NumBytes});