commit 9a054c4fbbc3257677c79152117a0fbdb3df1675
author vegorov@chromium.org <vegorov@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Tue Aug 02 10:47:41 2011
committer vegorov@chromium.org <vegorov@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Tue Aug 02 10:47:41 2011
tree 40c290d2a756702f11306231549bb63f9017f46e
parent e12e8b12d486f02ab3580f59231a389ac7e6e9c7

Merge r8774 from bleeding edge to 3.4 branch.

Check for phi-uses of arguments object before eliminating dead phi's.

HGraphBuilder::TryArgumentsAccess does not emit any uses for receiver and will
generate incorrect code when receiver for a property access is defined by a phi
that returns either arguments object or something else.

BUG=v8:1582
TEST=test/mjsunit/regress/regress-1582.js
Review URL: http://codereview.chromium.org/7554007

git-svn-id: http://v8.googlecode.com/svn/branches/3.4@8775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00