[PATCH] D107574: [GlobalOpt] [MemoryBuiltins] Update getMallocType with bitcast on stored pointer

[Shimin Cui via Phabricator via llvm-commits]

scui created this revision.
scui added reviewers: efriedma, george.burgess.iv, vsk, fhahn.
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Currently, getMallocType checks the bitcast uses of the malloc call. If there is no bitcast uses of the malloc call, malloc function’s return type is returned. Sometimes, the bitcast is on the stored-to pointer instead of on the malloc call. This patch is to also consider the cases like this:

  %call = call i8* @malloc
  store i8* %call, i8** bitcast (%T** @g to i8**)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D107574

Files:
  llvm/lib/Analysis/MemoryBuiltins.cpp
  llvm/test/Transforms/GlobalOpt/malloc-promote-5.ll

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