hg: jdk9/hs-comp/hotspot: 8144487: PhaseIdealLoop::build_and_optimize() must restore major_progress flag if skip_loop_opts is true

[tobias.hartmann at oracle.com]

Changeset: 21689239c407
Author:    thartmann
Date:      2015-12-21 11:34 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/21689239c407

8144487: PhaseIdealLoop::build_and_optimize() must restore major_progress flag if skip_loop_opts is true
Summary: Restore the major_progress flag before calling igvn.optimize().
Reviewed-by: kvn

! src/share/vm/opto/loopnode.cpp