Summary: Prevent eager reclaim of objects that might be on mark stack.
Reviewed-by: brutisso, tschatzl

Summary: Eliminate _CHECK_BOTH_FINGERS_ and simplify.
Reviewed-by: brutisso, tschatzl

Summary: Push the remembered sets of large objects with few referenced into the dirty card queue at the beginning of the evacuation so that they may end up with zero remembered set entries at the end of the collection, and are potentially reclaimed. Also improve timing measurements of the early reclaim mechanism, and shorten flag names.
Reviewed-by: brutisso, jmasa, dfazunen

Reviewed-by: dholmes

6536943: Bogus -Xcheck:jni warning for SIG_INT action for SIGINT in JVM started from non-interactive shell
Summary: check_signal_handler will print out Warning for SHURDOWN2_SIGNAL (SIGINT) is replaced by non-interactive shell. Fix by supply more information of the replacement to user.
Reviewed-by: dholmes
Contributed-by: yumin.qi@oracle.com

Summary: Prevent vectorization of memory operations with different invariant offsets if unaligned memory accesses are not allowed.
Reviewed-by: kvn

Summary: C2 should not try to vectorize loops with loop variant vector base address.
Reviewed-by: kvn

Reviewed-by: dholmes

Reviewed-by: dsamersoff, kbarrett, hseigel

Summary: Null the InterpreterRuntime::member_name_arg_or_null return value when it is necessary
Reviewed-by: jbachorik, coleenp, twisti

Reviewed-by: dholmes

Reviewed-by: kvn, iignatyev

Reviewed-by: kvn, iignatyev

Reviewed-by: kvn

Summary: Optimize the method pointer adjustments for prev klass versions and MNT
Reviewed-by: dcubed, coleenp

Summary: Also improve check for Safepoints in signal handler.
Reviewed-by: kvn, simonis

Reviewed-by: stuefe, dsamersoff, dcubed

Summary: NMT with detail option reports incorrect caller address on Linux.
Reviewed-by: dholmes, coleenp

Summary: Removed the Solaris specific conditionalization for casting to void * within calls to HS_DTRACE_PROBE* to enable successful compilation with gcc Red Hat 4.4.6-4.
Reviewed-by: hseigel, stefank

Reviewed-by: kvn