| commit | 1d6b5ef0f6fd38c5b40aec8830a3f0d66b8adf4f | |
| author | Mark Williams <mwilliams@fb.com> | |
| Tue, 3 Oct 2017 21:16:03 +0000 (3 14:16 -0700) | ||
| committer | Hhvm Bot <hhvm-bot@users.noreply.github.com> | |
| Tue, 3 Oct 2017 21:44:44 +0000 (3 14:44 -0700) | ||
| tree | 440286b2decf0dcdde12255a81641818ec170c58 | treesnapshot (tar.gz zip) |
| parent | 192419ea0c959b640997b677481558bd3af1faf3 | commitdiff |
Better instanceof optimization
Summary:
If we know the type under test is either Null or an instance of
specified class, we can replace the expensive InstanceOf check with a
cheap IsNull check.
Reviewed By: ricklavoie
Differential Revision: D5966947
fbshipit-source-id: f320c113ee42b85b303ee12fe73e079689bce6b1
Summary:
If we know the type under test is either Null or an instance of
specified class, we can replace the expensive InstanceOf check with a
cheap IsNull check.
Reviewed By: ricklavoie
Differential Revision: D5966947
fbshipit-source-id: f320c113ee42b85b303ee12fe73e079689bce6b1
| hphp/hhbbc/interp.cpp | diffblobblamehistory |