[PATCH] D152706: [AMDGPU] Use SSAUpdater in PromoteAlloca

Pierre van Houtryve via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 24 00:15:00 PDT 2023


Pierre-vh marked an inline comment as done.
Pierre-vh added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp:610
+      // Alloca already accessed as vector.
       if (Ptr == &Alloca && DL->getTypeStoreSize(Alloca.getAllocatedType()) ==
+                                DL->getTypeStoreSize(AccessTy)) {
----------------
arsenm wrote:
> Pierre-vh wrote:
> > This will crash if we load/store a value at an offset, and the access type is the same size as the alloca.
> > Should we check that the index is zero as well here?
> Probably, need to not break on out of bounds access
Oops, wrong place, it already does it (`&Ptr == &Alloca`), it's something in D155699


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152706/new/

https://reviews.llvm.org/D152706



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