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| author | Dan Gohman <gohman@apple.com> | 2008-04-28 17:02:21 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-04-28 17:02:21 +0000 |
| commit | bec1605c43a6375d755c88e1269d9176433bfecd (patch) | |
| tree | f306de3e44e0b534d1dab023bfbafded2cd1c35b /lib/Bitcode | |
| parent | 415e13afea66fb0fea6a13c9988a96185e064dd8 (diff) | |
| download | external_llvm-bec1605c43a6375d755c88e1269d9176433bfecd.zip external_llvm-bec1605c43a6375d755c88e1269d9176433bfecd.tar.gz external_llvm-bec1605c43a6375d755c88e1269d9176433bfecd.tar.bz2 | |
Teach InstCombine's ComputeMaskedBits what SelectionDAG's
ComputeMaskedBits knows about cttz, ctlz, and ctpop. Teach
SelectionDAG's ComputeMaskedBits what InstCombine's knows
about SRem. And teach them both some things about high bits
in Mul, UDiv, URem, and Sub. This allows instcombine and
dagcombine to eliminate sign-extension operations in
several new cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50358 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bitcode')
0 files changed, 0 insertions, 0 deletions