[PATCH] D87479: [InstCombine] Don't sink the fdiv from (fmul (fdiv 1.0, %x), %y) if the fdiv isn't in the same basic block as the fmul

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

This sounds very much like what happened here:
https://llvm.org/PR46115
https://github.com/JuliaLang/julia/issues/36084

So either we need a much bigger change (instcombine should not do code sinking), or we try to enforce not running instcombine after LICM somehow?


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