| commit | bf0002e7c17dc0158a279dac07375266594ac130 | [log] [tgz] |
|---|---|---|
| author | Dan Gohman <gohman@apple.com> | Thu May 21 02:28:33 2009 +0000 |
| committer | Dan Gohman <gohman@apple.com> | Thu May 21 02:28:33 2009 +0000 |
| tree | 98b342c47142270144605146ad20384987dc2b71 | |
| parent | a6bed8370e512d2fb5a41e5547336b05adf186bb [diff] |
Teach ValueTracking a new way to analyze PHI nodes, and and teach Instcombine to be more aggressive about using SimplifyDemandedBits on shift nodes. This allows a shift to be simplified to zero in the included test case. llvm-svn: 72204