[llvm] [SeparateConstOffsetFromGEP] Support GEP reordering for different types (PR #90802)

[Jeffrey Byrnes via llvm-commits]

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@@ -1017,6 +1016,51 @@ bool SeparateConstOffsetFromGEP::reorderGEP(GetElementPtrInst *GEP,
       IsChainInBounds &= KnownPtrGEPIdx.isNonNegative();
     }
   }
+  TypeSize GEPSize = DL->getTypeSizeInBits(GEP->getSourceElementType());
+  TypeSize PtrGEPSize = DL->getTypeSizeInBits(PtrGEP->getSourceElementType());
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jrbyrnes wrote:

I was trying to preserve the pointee type for users of the outer GEP, but I don't have a compelling argument as to why we would want to do this.

https://github.com/llvm/llvm-project/pull/90802