commit bca381a12965a98e3727e93986dd0a195db500a0
author Mingyao Yang <mingyao@google.com> Tue May 19 16:01:59 2015 -0700
committer Mingyao Yang <mingyao@google.com> Fri Jun 19 12:35:53 2015 -0700
tree 0aec90847a7adbb34c99788cc07d28170d44f934
parent db538d309bc34e025e921a04f10b4ee745bd9f1d

Fix premature deoptimization if the loop body isn't entered.

Add a test between initial_ and end_ to see if the loop body is entered.
If the loop body isn't entered at all, we jump to the loop header. Loop header is
still executed and is going to test the condition again and loop body won't be
entered. This makes sure no deoptimization is triggered if the loop body isn't
even entered.

Bug: 21034044

(cherry picked from commit 3584bce5b1f45e5741d3a6ca24884a36320ecb6b)

Change-Id: I2b6de1f22fbc4568ca419f76382ebd87806d9694