projects / platform / upstream / v8.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 9f0997f) | patch
Use cmov instructions to avoid some conditional branches in stub code.
authorfschneider@chromium.org <fschneider@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Tue, 5 Jan 2010 12:02:18 +0000 (12:02 +0000)
committerfschneider@chromium.org <fschneider@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Tue, 5 Jan 2010 12:02:18 +0000 (12:02 +0000)
commite06c5812321f00de717dc5859d90945da2ecf0a5
tree1a177897dafe44b7931ac416e49db35c8d4befe8tree | snapshot
parent9f0997f9bf3622cd4b25d787670f15f8096be33fcommit | diff
Use cmov instructions to avoid some conditional branches in stub code.

This change improves the ConstructStub and the ArgumentsAccessStub slightly
by using the cmov instruction (if available) to eliminate a
conditional branch. It only applies to the IA-32 and X64 platforms.

Review URL: http://codereview.chromium.org/519035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
src/ia32/codegen-ia32.cc diff | blob | history
src/ia32/stub-cache-ia32.cc diff | blob | history
src/x64/codegen-x64.cc diff | blob | history
src/x64/stub-cache-x64.cc diff | blob | history
Domain: Web Framework / Web Engine;