Summary: Add split_arena to allocate temporary arrays in PhaseChaitin::Split() and free them on method's exit.
Reviewed-by: twisti

Reviewed-by: jcoomes

Summary: Change pair check to vector check in RA bias coloring code.
Reviewed-by: jrose, twisti

Summary: Also reviewed by: vitalyd@gmail.com. Make G1DefaultMinNewGenPercent, G1DefaultMaxNewGenPercent, G1OldCSetRegionLiveThresholdPercent and G1OldCSetRegionThresholdPercent experimental flags
Reviewed-by: ysr, johnc, jmasa

Summary: Fixed Pack node generation. Not vectorize shift instructions if count is not the same for all shifts and if count is vector.
Reviewed-by: twisti

Summary: C1 value numbering hits unloaded klass.
Reviewed-by: kvn, twisti

Summary: Shifts with loop variant counts "a[i]=1<<b[i];" should not be vectorized since hw does not support it.
Reviewed-by: twisti

Summary: Correct the result value of G1CollectedHeap::pending_card_num(). Change the code that calculates the GC efficiency of a non-young heap region to use historical data from mixed GCs and the actual number of live bytes when predicting how long it would take to collect the region. Changes were also reviewed by Thomas Schatzl.
Reviewed-by: azeemj, brutisso

Reviewed-by: kvn, roland, jrose

Summary: G1 does not appear to be immune to the issue described in CR 6948537 and increasing the size of old-generation PLABs appears to increase the liklihood of seeing the issue. Extend the fix for 6948537 to G1's BlockOffsetTable.
Reviewed-by: brutisso, jmasa

Summary: In C2 add software membar after load from Reference.referent field to prevent commoning of loads across safepoint since GC can change its value. In C1 always generate Reference.get() intrinsic.
Reviewed-by: roland, twisti, dholmes, johnc

Summary: Added asm encoding and mach nodes for vector arithmetic instructions on x86.
Reviewed-by: roland

Reviewed-by: jcoomes

7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
Summary: Updated all related variables and methods to use NOT_PRODUCT macros
Reviewed-by: coleenp, acorn, kvn

Reviewed-by: jcoomes

Summary: Add some quotes around the classpath in the project file rule.
Reviewed-by: dcubed

Reviewed-by: kvn, jrose

Reviewed-by: jcoomes

Summary: Provide additional detail in VerifyError messages
Reviewed-by: sspitsyn, acorn

Summary: Employ PLABStats instances to record information about survivor and old PLABs, and use the recorded stats to adjust the sizes of survivor and old PLABS.
Reviewed-by: johnc, ysr
Contributed-by: NBrandon Mitchell <brandon@twitter.com>

Summary: This fix is the minimum number of Makefile changes to enable building HotSpot with MinGW/MSYS
Reviewed-by: jcoomes, dcubed, tbell, ohair
Contributed-by: volker.simonis@gmail.com

Reviewed-by: jcoomes

Summary: Change DEBUG_BINARIES option logic to be more clear.
Reviewed-by: fparain, andrew