| commit | 96fc7ea76dd22a15e67e318c6f930a3ca9aa4fad | |
| author | Rick Lavoie <rlavoie@fb.com> | |
| Tue, 27 Aug 2019 01:42:04 +0000 (26 18:42 -0700) | ||
| committer | Hhvm Bot <hhvm-bot@users.noreply.github.com> | |
| Tue, 27 Aug 2019 01:44:04 +0000 (26 18:44 -0700) | ||
| tree | 6f1ae899a61f934bc5f0a62fc32d80e1c1c6823b | treesnapshot (tar.gz zip) |
| parent | 94166a84e7b06eb455217c9098adc2e4fce9df14 | commitdiff |
Remove trivial nops before jump optimizations
Summary:
Some vasm passes can leave behind trivial nops. These will eventually
get cleaned up before code emission, but they may hang around for
multiple passes. The presence of trivial nops can inhibit some
optimizations that optimizeJmps performs, so clean them up before
running the pass.
Reviewed By: ottoni, mxw
Differential Revision: D17053304
fbshipit-source-id: 2f80cb6ad72a639667ddf95e62585726f9327ff9
Summary:
Some vasm passes can leave behind trivial nops. These will eventually
get cleaned up before code emission, but they may hang around for
multiple passes. The presence of trivial nops can inhibit some
optimizations that optimizeJmps performs, so clean them up before
running the pass.
Reviewed By: ottoni, mxw
Differential Revision: D17053304
fbshipit-source-id: 2f80cb6ad72a639667ddf95e62585726f9327ff9
| hphp/runtime/vm/jit/vasm-jumps.cpp | diffblobblamehistory |