[PATCH] D62818: [InstCombine] Introduce fold for icmp pred (and X, (sh signbit, Y)), 0.
Huihui Zhang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 12 23:53:02 PDT 2019
huihuiz updated this revision to Diff 204436.
huihuiz added a comment.
Original test cases are added in D63025 <https://reviews.llvm.org/D63025> . Hopefully would be good coverage :)
D63026 <https://reviews.llvm.org/D63026> fix fold order issue
this differential introduce new fold for icmp pred (and X, (sh signbit, Y)), 0
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D62818/new/
https://reviews.llvm.org/D62818
Files:
lib/Transforms/InstCombine/InstCombineCompares.cpp
test/Transforms/InstCombine/signbit-lshr-and-icmpeq-zero.ll
test/Transforms/InstCombine/signbit-shl-and-icmpeq-zero.ll
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