diff options
| author | Chris Lattner <sabre@nondot.org> | 2008-03-21 05:19:58 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-03-21 05:19:58 +0000 |
| commit | 41dc0fcb68e7ea5d7c043af2a6303adfdad19c72 (patch) | |
| tree | 05a451b401a19eabcd7223c1279f3675a318a197 /lib/CodeGen/SelectionDAG/CallingConvLower.cpp | |
| parent | fa5a91a71ee3c62c6f0bc6cc1388175ad6f925c4 (diff) | |
Teach masked value is zero about add and sub, and use MVIZ to
simplify things like (X & 4) >> 1 == 2 --> (X & 4) == 4.
since it is obvious that the shift doesn't remove any bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48631 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/CallingConvLower.cpp')
0 files changed, 0 insertions, 0 deletions