[llvm] [AMDGPU] Support i8/i16 GEP indices when promoting allocas to vectors (PR #175489)

[Harrison Hao via llvm-commits]

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@@ -568,15 +572,31 @@ computeGEPToVectorIndex(GetElementPtrInst *GEP, AllocaInst *Alloca,
   const auto &VarOffset = VarOffsets.front();
   APInt OffsetQuot;
   APInt::sdivrem(VarOffset.second, VecElemSize, OffsetQuot, Rem);
-  if (Rem != 0 || OffsetQuot.isZero())
+  uint64_t DivForVarIndex = 0;
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harrisonGPU wrote:

Thanks! I have updated.

https://github.com/llvm/llvm-project/pull/175489