Only assign environments when they are actually needed. (x64 only)
authorsvenpanne@chromium.org <svenpanne@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Wed, 26 Mar 2014 10:35:31 +0000 (10:35 +0000)
committersvenpanne@chromium.org <svenpanne@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Wed, 26 Mar 2014 10:35:31 +0000 (10:35 +0000)
commitccef98ec0df0672ba70223e9177fdd13c1905c1d
treecd29b921767bbef00771ad777dc2613053002ef7
parent95908dbb09ad3c2eda5545cb5caf02be59ac7f3f
Only assign environments when they are actually needed. (x64 only)

Twin of https://code.google.com/p/v8/source/detail?r=20231.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/211153003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
src/x64/lithium-x64.cc