[PATCH] D129841: [GlobalOpt] Enable evaluation of atomic stores

[Alexander Shaposhnikov via Phabricator via llvm-commits]

alexander-shaposhnikov added a comment.

Currently Clang does the following: (not fully observable on godbolt but one can build the actual binary and take a look at the global constructors)
1/ https://godbolt.org/z/cqErE8bcj  (invocation of the global constructor is replaced with static initialization  .word   5)
2/ https://godbolt.org/z/3cfxc41na (not the case for atomic<int>) 
With this diff (2) will start to behave like (1).

P.S. Worth noting that https://godbolt.org/z/WKqh7TvbW (line 79: .word 5) (but this is happening due to Clang's frontend, not LLVM's optimizer)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D129841/new/

https://reviews.llvm.org/D129841