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(parent: 6c7e8a0) | patch
Generalize this optimization to work on equality comparisons between any two
authorNick Lewycky <nicholas@mxc.ca>
Sat, 5 Dec 2009 05:00:00 +0000 (05:00 +0000)
committerNick Lewycky <nicholas@mxc.ca>
Sat, 5 Dec 2009 05:00:00 +0000 (05:00 +0000)
commit83e8ec73e1487926d6eb6d330bb869f173c8fcf1
treef72a86f5409c5766d784bdb4acd2aab4989b5c91tree | snapshot
parent6c7e8a02d81be9b66a8cfc6f8b6f20d48088d915commit | diff
Generalize this optimization to work on equality comparisons between any two
integers that are constant except for a single bit (the same n-th bit in each).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90646 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Scalar/InstructionCombining.cpp diff | blob | history
test/Transforms/InstCombine/compare-signs.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors