[llvm] e6f31f4 - [InstCombine] Use GEP type instead of pointee type

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2021-12-28T14:57:43+01:00
New Revision: e6f31f4e51df484e2f34c6c9cfd8d791cdee2eb0

URL: https://github.com/llvm/llvm-project/commit/e6f31f4e51df484e2f34c6c9cfd8d791cdee2eb0
DIFF: https://github.com/llvm/llvm-project/commit/e6f31f4e51df484e2f34c6c9cfd8d791cdee2eb0.diff

LOG: [InstCombine] Use GEP type instead of pointee type

The GEP source type is independent of whether it is a scalar or
vector GEP, as such we can simply preserve it.

Added: 
    

Modified: 
    llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp b/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
index c6a4602e59e3e..736cf9c825d58 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
@@ -495,8 +495,7 @@ Instruction *InstCombinerImpl::visitExtractElementInst(ExtractElementInst &EI) {
           }
 
           GetElementPtrInst *NewGEP = GetElementPtrInst::Create(
-              cast<PointerType>(NewPtr->getType())->getElementType(), NewPtr,
-              NewOps);
+              GEP->getSourceElementType(), NewPtr, NewOps);
           NewGEP->setIsInBounds(GEP->isInBounds());
           return NewGEP;
         }