R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/
77943002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17899
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
ASSERT(result_state_ <= (has_int_result() ? INT32 : NUMBER) ||
op_ == Token::ADD);
+ // Reset overwrite mode unless we can actually make use of it, or may be able
+ // to make use of it at some point in the future.
+ if ((mode_ == OVERWRITE_LEFT && left_state_ > NUMBER) ||
+ (mode_ == OVERWRITE_RIGHT && right_state_ > NUMBER) ||
+ result_state_ > NUMBER) {
+ mode_ = NO_OVERWRITE;
+ }
+
if (old_state == GetExtraICState()) {
// Tagged operations can lead to non-truncating HChanges
if (left->IsUndefined() || left->IsBoolean()) {