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| author | David Majnemer <david.majnemer@gmail.com> | 2013-07-09 09:20:58 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2013-07-09 09:20:58 +0000 |
| commit | 72d76275ac85d7f172dd7b89fa4a9986022aca9f (patch) | |
| tree | f55156302b9fd6b44d68603a541ba0659ef1bb6c /llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp | |
| parent | b1f74a815294822f32b80210df64c6cf1492952d (diff) | |
| download | llvm-72d76275ac85d7f172dd7b89fa4a9986022aca9f.zip llvm-72d76275ac85d7f172dd7b89fa4a9986022aca9f.tar.gz llvm-72d76275ac85d7f172dd7b89fa4a9986022aca9f.tar.bz2 | |
InstCombine: variations on 0xffffffff - x >= 4
The following transforms are valid if -C is a power of 2:
(icmp ugt (xor X, C), ~C) -> (icmp ult X, C)
(icmp ult (xor X, C), -C) -> (icmp uge X, C)
These are nice, they get rid of the xor.
llvm-svn: 185915
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp')
0 files changed, 0 insertions, 0 deletions