Summary: Changes to default and ergonomic flag values recommended by performance team. Changes were also reviewed by Monica Beckwith <monica.beckwith@oracle.com>.
Reviewed-by: brutisso, huntch

Summary: Also reviewed by: vitalyd@gmail.com
Reviewed-by: coleenp, acorn

Reviewed-by: coleenp, dholmes

Reviewed-by: ysr, johnc, jwilhelm

Reviewed-by: dholmes, stefank
Contributed-by: erik.helin@oracle.com

Reviewed-by: jcoomes

Reviewed-by: jrose, kvn

Summary: Print an error message and exit the VM if UseParallalGC is combined with ParllelGCThreads==0. Also reviewed by vitalyd@gmail.com.
Reviewed-by: stefank, ehelin

Summary: use 256bit vpxor,vptest instructions in String.compareTo() and equals() intrinsics.
Reviewed-by: twisti

Summary: Count number of instance classes so that it matches class metadata size
Reviewed-by: coleenp, acorn

Summary: Add hotspot support for parameter reflection
Reviewed-by: acorn, jrose, coleenp
Contributed-by: eric.mccorkle@oracle.com

Summary: Save the alignment when writing the CDS and compare it when reading the CDS.
Reviewed-by: kvn, coleenp

Summary: Use methodHandle.
Reviewed-by: coleenp, acorn, twisti, sspitsyn

Reviewed-by: jrose, kvn, twisti
Contributed-by: NMorris Meyer <morris.meyer@oracle.com>

Summary: Map memory only once to prevent 'already mapped' failures.
Reviewed-by: acorn, zgu

Reviewed-by: johnc, ysr

Reviewed-by: stefank, ysr

Reviewed-by: johnc, jwilhelm

Summary: Log warning messages for DefNew+CMS and ParNew+SerialOld
Reviewed-by: ysr, jwilhelm, jcoomes

Summary: Use YMM registers in arraycopy and array_fill stubs.
Reviewed-by: roland, twisti

Summary: use 'rep stosb' instead of 'rep stosq' when fast-string operations are available.
Reviewed-by: twisti, roland

Summary: assert is triggered when number of register based arguments passed to a java method exceeds 16.
Reviewed-by: roland, vladidan

8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
Summary: Relocate functions with jsr's when rewriting so not repeated after reading shared archive
Reviewed-by: twisti, jrose

8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines
Reviewed-by: jmasa, jcoomes

Summary: Reset the marking state, including the mark stack overflow flag, in the event of a marking stack overflow during serial reference processing.
Reviewed-by: jmasa

Summary: post parse inlining driven by number of live nodes.
Reviewed-by: twisti, kvn, jrose