Summary: bitCount() should use POPC on SPARC processors where POPC is implemented directly in hardware.
Reviewed-by: kvn, never

Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp

Summary: A similar function to getisax(2) should be used to determine all possible instruction set extensions.
Reviewed-by: never, kvn

Summary: Add a LoadUB (unsigned byte) and LoadUI (unsigned int) opcode class so we have these load optimizations in the first place and do not need to handle them in the matcher.
Reviewed-by: never, kvn

Summary: A few small fixes to remove some inconsistencies in the concurrent mark-related verbose GC output.
Reviewed-by: jmasa

Summary: The length of the fast cset test vector is decided at the beginning of a GC, but more regions can be added during the GC. The simple fix is to set the length of the fast cset test vector to the max.
Reviewed-by: iveresov

Summary: The _expanded flag of the sparse RSets is not reset and this can leave a RSet in an inconsistent state if it is expanded more than once. Also, we should be iterating over the _cur, instead of the _next, sparse table
Reviewed-by: apetrusenko, iveresov

Summary: Code in vtableStubs and templateTable moved into MacroAssembler.
Reviewed-by: kvn

6720334: G1: don't update RSets of collection set regions during an evacuation pause
Summary: Introduced a deferred update mechanism for delaying the rset updates during the collection pause
Reviewed-by: apetrusenko, tonyp

Summary: minor assembler enhancements preparing for method handles
Reviewed-by: kvn

Summary: Set MIN_BLOCK_FREQUENCY block's frequency when calculated block's frequency is NaN
Reviewed-by: never

Summary: Call newly created CollectedHeap::dump_{pre,post}_full_gc before and after every stop-world full collection cycle on GenCollectedHeap and ParallelScavengeHeap. (Support for G1CollectedHeap forthcoming under CR 6810861.) Small modifications to existing heap dumping and class histogram implementation, especially to allow multiple on-the-fly histos/dumps by the VM thread during a single safepoint.
Reviewed-by: jmasa, alanb, mchung

Summary: Change JvmtiEnvBase::is_valid() and JvmtiRawMonitor::is_valid() to fetch the _magic fields via Bytes::get_native_u[248]().
Reviewed-by: coleenp, swamyv

Summary: Remove incorrect optimization in klassItable::adjust_method_entries(). Add RedefineClasses() tracing support for obsolete method entry.
Reviewed-by: acorn, swamyv

Summary: Check for NULL return values from jvmti_thread_state() and state_for() and return a JVM TI error code as appropriate.
Reviewed-by: coleenp, swamyv

6700114: 3/4 Assertion (_thread->get_interp_only_mode() == 1,"leaving interp only when mode not one")
Summary: Don't create JvmtiThreadState for an exiting JavaThread.
Reviewed-by: coleenp, swamyv

Reviewed-by: kvn, phh, twisti

Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

Summary: Fix method's declaration.
Reviewed-by: phh, twisti

Summary: Some fixes which are required to build on recent GCCs.
Reviewed-by: never, kvn
Contributed-by: langel@redhat.com

Reviewed-by: kvn

Summary: Replace the control edge of a pinned node before scheduling.
Reviewed-by: never

Reviewed-by: kvn

Reviewed-by: kvn, twisti

Summary: Workaround the overflow by doing the intermediate calculations in an unsigned variable.
Reviewed-by: ysr, jcoomes

Summary: Under certain circumstances (evacuation failure) the pause time is not communicated to the policy and, as a result, the pause time field is not initialized properly.
Reviewed-by: jmasa

Summary: Mark inputs for an address expression as shared if there are other uses besides address expressions.
Reviewed-by: never

Summary: There is very much duplicated code in vm_version_x86_{32,64}.{cpp,hpp}.  Refactoring these would help maintainability.
Reviewed-by: kvn, never

Summary: Add missing checks for SCMemProj node in Escape analysis code.
Reviewed-by: never

Summary: Define HOTSPOT_LIB_ARCH in the preprocessor flags of the generated projects
Reviewed-by: kamg, xlu

Summary: Add checks for DecodeN nodes into AutoBox elimination code.
Reviewed-by: never

Summary: Two assertions were incorrectly composed.
Reviewed-by: tonyp

Summary: There are two typos in andL_rReg_imm instructions in x86_64.ad.
Reviewed-by: kvn

6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
Summary: C2, ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
Reviewed-by: rasbold

Summary: This patch adds a comment pointing to the Hacker's Delight version of the algorithm plus a verbatim copy of it.  Furthermore it adds inline comments.
Reviewed-by: kvn, jrose

Reviewed-by: tonyp

Summary: replaced localtime() with localtime_r() on Solaris and Linux.
Reviewed-by: apetrusenko, dholmes, jmasa

6802413: G1: G1FixedSurvivorSpaceSize should be converted into regions in calculate_survivors_policy()
Reviewed-by: tonyp, jmasa

Summary: Substitute a spin loop for most calls to yield() to reduce the stress on the system.
Reviewed-by: tonyp

Summary: Move the CreateEx up before each round of IFG construction
Reviewed-by: never, phh