[PATCH] D139130: InstCombine: Fold and (fcmp), (is.fpclass) into is.fpclass

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 482333.
arsenm marked an inline comment as done.
arsenm retitled this revision from "InstCombine: Fold and/or of fcmp into class" to "InstCombine: Fold and (fcmp), (is.fpclass) into is.fpclass".
arsenm edited the summary of this revision.
arsenm added a comment.

Resplit the patches differently. For now, only handle fcmp+is.fpclass case, such that it will not introduce is.fpclass in situations it didn't already exist. If we have 2 or more compares that can turn into a class, I think we should introduce them after codegen is improved a bit for it.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139130/new/

https://reviews.llvm.org/D139130

Files:
  llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  llvm/test/Transforms/InstCombine/combine-is.fpclass-and-fcmp.ll
  llvm/test/Transforms/InstCombine/is_fpclass.ll

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