git: openjdk/mobile: 8231720: Some perf regressions after 8225653

[duke]

Changeset: 9751b566
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2019-10-10 10:27:12 +0000
URL:       https://git.openjdk.java.net/mobile/commit/9751b566

8231720: Some perf regressions after 8225653

Fixed emitting of unused assembly code in 8225653​ which had a negative impact on performance in tight loops.

Reviewed-by: kvn, thartmann

! src/hotspot/cpu/x86/macroAssembler_x86.cpp