[llvm-branch-commits] [llvm] [InstCombine] Enable select freeze poison folding when storing value (PR #129776)

[John McIver via llvm-branch-commits]

jmciver wrote:

@dtcxzyw I was not aware I should be using a fuzzer. What tool would you recommend?

>From a correctness standpoint the match is relatively narrow and I have discussed with @nlopes extensively. The patch has been tested with bootstrap build of LLVM running all regressions. Additionally I have used the llvm-test-suite for correctness checks.

I have sent a request to @nikita asking for compile-time tracker access and can report results once available.

I also have used the patch in conjunction with 15+ Phoronix benchmarks. The optimization involving the fold of global is something I have seen in our memory semantics work in testing FFTW.

https://github.com/llvm/llvm-project/pull/129776