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| 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 | 5ee84f8e9e6d5ab67d5c562def25be869bf4a00a (patch) | |
| tree | 05a451b401a19eabcd7223c1279f3675a318a197 /lib/Target | |
| parent | 7fcccabce197867dcd594f43a9247a5551fe7a28 (diff) | |
| download | external_llvm-5ee84f8e9e6d5ab67d5c562def25be869bf4a00a.zip external_llvm-5ee84f8e9e6d5ab67d5c562def25be869bf4a00a.tar.gz external_llvm-5ee84f8e9e6d5ab67d5c562def25be869bf4a00a.tar.bz2 | |
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/Target')
0 files changed, 0 insertions, 0 deletions