8032894: Remove dead code in Pressure::lower Summary: Remove dead code in Pressure::lower Reviewed-by: kvn, roland

8027754: Enable loop optimizations for loops with MathExact inside Reviewed-by: kvn, iveresov

8033805: Move Fast_Lock/Fast_Unlock code from .ad files to macroassembler Summary: Consolidated C2 x86 locking code in one place in macroAssembler_x86.cpp. Reviewed-by: roland

Merge

8035746: Add missing Klass::oop_is_instanceClassLoader() function Reviewed-by: mgerdin, coleenp

8035648: Don't use Handle in java_lang_String::print Reviewed-by: coleenp, pliden

8035822: Unable to test minimalVM Summary: Moved the test code inside INCLUDE_ALL_GCS Reviewed-by: dholmes, stefank

Merge

8034948: Back out JDK-6976350 since it does not fix any issue Summary: Revert JDK-6976350 because it does not improve PLAB fragmentation. To the contrary, it tends to increase the amount of wasted space with many threads. Reviewed-by: brutisso

8035329: Move G1ParCopyClosure::copy_to_survivor_space into G1ParScanThreadState Summary: Move G1ParCopyClosure::copy_to_survivor_space to decrease code size. Reviewed-by: stefank, jmasa

8035326: Assume non-NULL references in G1CollectedHeap::in_cset_fast_test Summary: Remove the assumption that G1CollectedHeap::in_cset_fast_test needs to check for NULL references. Most of the time this is not required, making the code doing this check multiple times. Reviewed-by: stefank, mgerdin, jmasa

8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work Summary: Move methods that are not dependent on any of G1ParCopyClosure's template parameters into G1ParCopyHelper. Further remove unused methods and members of the class hierarchy. Reviewed-by: mgerdin, stefank