[PATCH] D44425: [InstSimplify] peek through unsigned FP casts for sign-bit compares (PR36682)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 138525.
lebedev.ri marked 3 inline comments as done.
lebedev.ri added a comment.

> simplifyICmpWithConstant()? I think you'd have to put it above the m_APInt() check in that function in order to still get some of the vector tests with undef elements though.

Yep, thanks, looks less out-of-place there!

The `GetCompareTy(RHS)` change will be a preparatory NFC commit before the main commit.


Repository:
  rL LLVM

https://reviews.llvm.org/D44425

Files:
  lib/Analysis/InstructionSimplify.cpp
  test/Transforms/InstSimplify/cast-unsigned-icmp-cmp-0.ll

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