[PATCH] D44424: [InstCombine] peek through unsigned FP casts for zero-equality compares (PR36682)
Roman Lebedev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 15 06:32:36 PDT 2018
lebedev.ri added a comment.
I'm looking at this more, and i expect that `sitofp/uitofp + bitcast + icmp eq/ne` -> `icmp eq/ne` combine is valid/can be generalized for more constants.
At the very least for all power-of-two constants.
F5895084: fp-constants.txt <https://reviews.llvm.org/F5895084>
This is currently not done, at least not fully, https://godbolt.org/g/j5BSZ2
But that is for later.
Repository:
rL LLVM
https://reviews.llvm.org/D44424
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