| commit | b18e25f625fb537a122863eaca134fd89d425a33 | |
| author | Mark Williams <mwilliams@fb.com> | |
| Wed, 20 Sep 2017 02:18:10 +0000 (19 19:18 -0700) | ||
| committer | Hhvm Bot <hhvm-bot@users.noreply.github.com> | |
| Wed, 20 Sep 2017 02:24:06 +0000 (19 19:24 -0700) | ||
| tree | 6e508483875819fff9b6e71067f3fc0962c99422 | treesnapshot (tar.gz zip) |
| parent | 53cd97719200ce7a1c6fdf0be2a6258d1e4ed229 | commitdiff |
Add a peephole for [N]Same Null
Summary:
With preoptimize turned off in hphpc, nearly all the differences are
IsType Null vs [N]Same Null, so I'm adding a peephole to reduce the
noise and make it easier to find real differences.
At the same time this should make the bytecode strictly smaller, so
its worth doing anyway.
Reviewed By: ricklavoie
Differential Revision: D5864335
fbshipit-source-id: 51a3107e4deac876e65c664f05c22467e7bebfcf
Summary:
With preoptimize turned off in hphpc, nearly all the differences are
IsType Null vs [N]Same Null, so I'm adding a peephole to reduce the
noise and make it easier to find real differences.
At the same time this should make the bytecode strictly smaller, so
its worth doing anyway.
Reviewed By: ricklavoie
Differential Revision: D5864335
fbshipit-source-id: 51a3107e4deac876e65c664f05c22467e7bebfcf
| hphp/hhbbc/peephole.cpp | diffblobblamehistory |