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InstCombine: Turn urem to bitwise-and more often
authorDavid Majnemer <david.majnemer@gmail.com>
Sat, 11 May 2013 09:01:28 +0000 (09:01 +0000)
committerDavid Majnemer <david.majnemer@gmail.com>
Sat, 11 May 2013 09:01:28 +0000 (09:01 +0000)
commita8ccefc0a31c868c79cfc028e2a957269de5aba6
tree4a3e2d1e07e573251bc95549b16bf8e47d1cb3abtree | snapshot
parentd84ccfaf50c7843f31ffc74a8a8e33f779453d6ecommit | diff
InstCombine: Turn urem to bitwise-and more often

Use isKnownToBeAPowerOfTwo in visitUrem so that we may more aggressively
fold away urem instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181661 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/InstCombine/InstCombineMulDivRem.cpp diff | blob | history
test/Transforms/InstCombine/rem.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors