fschneider@google.com
844d6459ad
A shift can only deoptimize if the rhs is negative: This is the case if the range of the rhs is not contained within [0, +inf]. !range->IsPositive() is _not_ the same as range->IsNegative(). I find these names confusing and we should find better alternatives. R=vegorov@google.com Review URL: https://codereview.chromium.org//321943005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@37176 260f80e4-7a28-3924-810f-c04153c831b5