projects / platform / upstream / llvm.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: fc3062f) | patch
InstSimplify: Optimize away useless unsigned comparisons
authorDavid Majnemer <david.majnemer@gmail.com>
Sat, 6 Dec 2014 10:51:40 +0000 (10:51 +0000)
committerDavid Majnemer <david.majnemer@gmail.com>
Sat, 6 Dec 2014 10:51:40 +0000 (10:51 +0000)
commit1af36e5baf4f1d046db4f308a28ca1b18475cab4
treec2452f5c3d6cfea7ecbc6e28706bdccdfdd20373tree | snapshot
parentfc3062f65aee7ed02b0bdb75f3883f6030d7bf9fcommit | diff
InstSimplify: Optimize away useless unsigned comparisons

Code like X < Y && Y == 0 should always be folded away to false.

llvm-svn: 223583
llvm/lib/Analysis/InstructionSimplify.cpp diff | blob | history
llvm/lib/IR/ConstantFold.cpp diff | blob | history
llvm/test/Transforms/InstSimplify/AndOrXor.ll diff | blob | history
Domain: System / Toolchain;