[PATCH] D128364: [InstCombine] Look through more casts when folding memchr and memcmp

[Martin Sebor via Phabricator via llvm-commits]

msebor added a comment.

I've managed to reproduce it by changing the test case.  It seems as though the test input of

  %pa_0_0_32 = getelementptr [2 x %struct.A], [2 x %struct.A]* @a, i64 0, i64 0, i32 0, i64 32
  %ia_0_0_32 = call i32 @atoi(i8* %pa_0_0_32)

is on Darwin transformed into

  %ia_0_0_32 = call i32 @atoi(i8* getelementptr inbounds ([2 x %struct.A], [2 x %struct.A]* @a, i64 1, i64 0, i32 0, i64 0)) 

which the folder doesn't handle.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D128364/new/

https://reviews.llvm.org/D128364