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| author | Craig Topper <craig.topper@intel.com> | 2017-08-21 19:02:06 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-08-21 19:02:06 +0000 |
| commit | 74177e1ed1a9ae69a72a58790055d887cc71fb36 (patch) | |
| tree | fd2a042b3d6d202ff1f40de2d2014d850265e99d /llvm/lib/Support/BinaryStreamRef.cpp | |
| parent | a8c329b0eba707d57f81da9f63187b8b31ab40f0 (diff) | |
| download | bcm5719-llvm-74177e1ed1a9ae69a72a58790055d887cc71fb36.tar.gz bcm5719-llvm-74177e1ed1a9ae69a72a58790055d887cc71fb36.zip | |
[InstCombine] Teach foldSelectICmpAnd to recognize a (icmp slt X, 0) and (icmp sgt X, -1) as equivalent to an and with the sign bit of the truncated type
This is similar to what was already done in foldSelectICmpAndOr. Ultimately I'd like to see if we can call foldSelectICmpAnd from foldSelectIntoOp if we detect a power of 2 constant. This would allow us to remove foldSelectICmpAndOr entirely.
Differential Revision: https://reviews.llvm.org/D36498
llvm-svn: 311362
Diffstat (limited to 'llvm/lib/Support/BinaryStreamRef.cpp')
0 files changed, 0 insertions, 0 deletions
