8074981: Integer/FP scalar reduction optimization Summary: Add scalar reduction optimization to C2 to take advantage of vector instructions in modern x86 CPUs. Reviewed-by: kvn, twisti Contributed-by: michael.c.berg@intel.com

8075587: Compilation of constant array containing different sub classes crashes the JVM Summary: meet of 2 constant arrays result in bottom Reviewed-by: kvn

8026049: (bf) Intrinsify ByteBuffer.put{Int, Double, Float, ...} methods Summary: Use unaligned Unsafe loads and stores for ByteBuffer access on platforms which support unaligned access. Add intrinsics for Unsafe.{get,put}-X-Unaligned methods. Reviewed-by: dholmes, jrose, psandoz, kvn

8075921: assert assert(allocx == alloc) fails in library_call.cpp Summary: control becomes top after arraycopy guards and confuses tighly coupled allocation logic Reviewed-by: kvn, vlivanov

Merge

8075922: assert(t == t_no_spec) fails in phaseX.cpp Summary: subgraph becomes dead RegionNode::Ideal() but is not destroyed Reviewed-by: kvn, vlivanov

8075214: SIGSEGV in nmethod sweeping Summary: Changed implementation of forceNMethodSweep() to request sweep from existing sweeper thread. Reviewed-by: kvn, mgerdin, dholmes

Merge

Merge

8075798: Allow ADLC register class to depend on runtime conditions also for cisc-spillable classes Summary: Introduce a new register class, reg_class_dynamic, that supports also cist-spillable masks. Reviewed-by: kvn, dlong, roland

8075663: compiler/rangechecks/TestExplicitRangeChecks.java fails in compiler nightlies Summary: -Xmixed following -Xcomp doesn't undo the effect of -Xcomp with tiered on Reviewed-by: kvn, vlivanov

Merge

Merge

8075505: aix: improve handling of native memory Reviewed-by: kvn, stuefe Contributed-by: thomas.stuefe@sap.com

8075858: AIX: clean-up HotSpot make files Reviewed-by: kvn

Merge

8069263: assert(fm == NULL || fm->method_holder() == _participants[n]) failed: sanity Summary: default methods added to classes confuse dependency processing Reviewed-by: kvn

8075136: Unnecessary sign extension for byte array access Summary: Added C2 matching rules to remove unnecessary sign extension for byte array access. Reviewed-by: roland, kvn, aph, adinn

8075324: Costs of memory operands in aarch64.ad are inconsistent Summary: Made cost of 'indOffI' consistent to the other memory operands. Reviewed-by: roland, aph, adinn

8075488: compiler/whitebox/DeoptimizeFramesTest fails with exit code 1 due to unrecognized VM option -XX:+IgnoreUnexpectedVMOptions Reviewed-by: kvn

Merge

8074548: Never-taken branches cause repeated deopts in MHs.GWT case Reviewed-by: jrose, kvn

8075263: MHI::checkCustomized isn't eliminated for inlined MethodHandles Reviewed-by: jrose, kvn

8075266: Show runtime call details when printing machine code Reviewed-by: jrose, kvn

8075269: Extend -XX:CompileCommand=print,* to work for MethodHandle.invokeBasic/linkTo* Reviewed-by: jrose, kvn, dlong

8075270: Print locals & stack slots location for PcDescs Reviewed-by: kvn, jrose

8073866: Fix for 8064703 is not sufficient Summary: side effects between allocation and arraycopy can be reexecuted, unreachable uninitialized array can be seen by GCs Reviewed-by: kvn, vlivanov

Merge

8073480: C2 should optimize explicit range checks Summary: explicit range checks should be recognized by C2 Reviewed-by: kvn, vlivanov

8069367: Eagerly reclaimed humongous objects left on mark stack Summary: Prevent eager reclaim of objects that might be on mark stack. Reviewed-by: brutisso, tschatzl

Merge

Merge

8026043: Add regression test for JDK-8000831 Reviewed-by: mchung

8077710: BACKOUT - java hangs with -XX:ParallelGCThreads=0 -XX:+ExplicitGCInvokesConcurrent options Summary: Removed unnecessary guards. Reviewed-by: stefank, jwilhelm

8077403: Remove guarantee from GenCollectedHeap::is_in() Reviewed-by: mgerdin, jmasa

8077420: Build failure with SS12u4 Reviewed-by: dholmes, lfoltan

8076457: Fix includes of inline.hpp in GC code Reviewed-by: pliden, jmasa

8077301: Optimized build is broken Reviewed-by: kbarrett, brutisso

8077413: Avoid use of Universe::heap() inside collectors Reviewed-by: stefank, kbarrett

8077400: Unnecessary and incorrect "Code Cache Roots" G1 log entry Reviewed-by: tschatzl, brutisso, sangheki

8077411: Remove CollectedHeap::supports_heap_inspection() Reviewed-by: stefank, ecaspole, jmasa

8077414: PSPromotionLAB _state is unintialized Summary: Initialize _state to zero_size Reviewed-by: brutisso, stefank Contributed-by: Eric Caspole <eric.caspole@oracle.com>

8076311: Java 9 process negative MaxTenuringThreshold in different way than Java 8 Summary: Corrected processing of invalid MaXTenuringThreshold Reviewed-by: jmasa, dholmes, kbarrett

Merge

8076325: java hangs with -XX:ParallelGCThreads=0 -XX:+ExplicitGCInvokesConcurrent options Summary: Added a guard of gc workers > 0 to execute logic. Reviewed-by: stefank, mgerdin

8077255: TracePageSizes output reports wrong page size on Windows with G1 Summary: Print selected page size, not alignment size chosen by ReservedSpace (which is the vm_allocation_granularity that is different to page size on Windows) in the message presented by TracePageSizes. Reviewed-by: drwhite, jmasa

8076614: Add comment to ClearNoncleanCardWrapper::do_MemRegion() Reviewed-by: kbarrett, stefank

Merge

Merge

8076265: Simplify deal_with_reference Summary: Eliminate _CHECK_BOTH_FINGERS_ and simplify. Reviewed-by: brutisso, tschatzl

8077315: Build failure on OSX after compiler upgrade Reviewed-by: stefank, mgerdin

8077302: src/share/vm/oops/instanceRefKlass.inline.hpp has a doubble /* Reviewed-by: stefank, mgerdin

8076534: CollectedHeapName in SA agent incorrect Reviewed-by: dsamersoff, sla, tschatzl

8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29 Summary: Allow use of large pages for auxiliary data structures in G1. Clean up existing interfaces. Reviewed-by: jmasa, pliden, stefank

8069004: Kitchensink hanged with 16Gb heap and GC pause >30 min Summary: Revert bug introduced a few months ago. Reviewed-by: brutisso, tschatzl, jmasa

8043225: Make whitebox API functions more stable Summary: Added checks for null parameters where applicable Reviewed-by: dholmes, iignatyev Contributed-by: Kirill Zhaldybin <kirill.zhaldybin@oracle.com>

8076267: Remove n_gens() Reviewed-by: jprovino, kbarrett, jmasa

8076452: Remove SharedHeap Reviewed-by: stefank, sjohanss, david

8076289: Move the StrongRootsScope out of SharedHeap Reviewed-by: stefank, sjohanss, david

8076454: Clean up/move things out of SharedHeap Reviewed-by: stefank, sjohanss, david

8076456: Remove unnecessary oopDesc::klass() calls Reviewed-by: pliden, jmasa

8075955: Replace the macro based implementation of oop_oop_iterate with a template based solution Reviewed-by: brutisso, coleenp, kbarrett, sjohanss

8076447: Remove unused MemoryManager::kind() Reviewed-by: stefank, tschatzl

8016276: CMS concurrentMarkSweepGeneration contains lots of unnecessary allocation failure handling Reviewed-by: stefank, pliden

8076314: Remove the static instance variable SharedHeap:: _sh Reviewed-by: pliden, jmasa

Merge

Merge

8076421: Fix Zero Interpreter bugs in class redefinition and template interpreter changes Summary: metadata_do walking interpreted frames was wrong and generate_Reference_get is not necessarily an accessor method. Reviewed-by: sgehwolf, dholmes

8074860: Structured Exception Catcher missing around CreateJavaVM on Windows Summary: add __try/__except around JNI_CreateJavaVM Reviewed-by: mgronlun, dcubed

Merge

8068007: [Findbugs] SA com.sun.java.swing.action.ActionManager.manager should be package protect Summary: fixed java programming style nit Reviewed-by: dholmes, jbachorik, sspitsyn

Merge

6983747: Remove obsolete dl_mutex lock Summary: Unused dl_mutex lock has been removed. Reviewed-by: hseigel, coleenp, dholmes

Merge

8076344: serviceability/dcmd/vm/SetVMFlagTest.java test fails with "java.lang.Error: 'MaxHeapSize' flag is not available or immutable" Reviewed-by: sla

8076236: VM permits illegal flags for class init method Summary: Move check for multiple access flags so that it also covers instance initialization methods Reviewed-by: ctornqvi, lfoltan

Merge

8023093: Add ManagementAgent.status diagnostic command Reviewed-by: sla

Merge

8076492: Make common code from template interpreter code Summary: Move case statement out of assembly code Reviewed-by: minqi, sspitsyn, dholmes

8078349: remove dead code - fast_iagetfield Summary: Unused function fast_iagetfield has been removed. Reviewed-by: hseigel, coleenp

8076450: com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java: assert(!on_C_heap() || allocated_on_C_heap()) failed: growable array must be on C heap if elements are Reviewed-by: fparain, mgronlun, dholmes

8076185: Provide SafeFetchX implementation for zero Summary: Implement SafeFetchX for zero using setjmp/longjmp and Posix TLS Reviewed-by: sgehwolf, dholmes Contributed-by: thomas.stuefe@gmail.com

Merge

Merge

8076181: bytecodeInterpreter.cpp refers to unknown labels. Reviewed-by: coleenp, dholmes

8074895: os::getenv is inadequate Reviewed-by: dholmes, coleenp

Merge

8075438: [TESTBUG] Hotspot JTREG tests should use unique CDS archive names Reviewed-by: hseigel, gtriantafill

8074718: Merge templateTable_x86 _32 and _64 .hpp files Summary: templateTable_x86 32 and 64 bit files have been merged. Reviewed-by: hseigel, coleenp

8054890: Serviceability: New diagnostic commands 'VM.set_flag' and 'JVMTI.data_dump' Reviewed-by: sla, fparain, egahlin, ykantser

Merge

8076163: ppc: port "8074345: Enable RewriteBytecodes when VM runs with CDS" Reviewed-by: coleenp, simonis, mdoerr

8075967: Zero interpreter asserts for SafeFetch<32,N> calls in ObjectMonitor Summary: Implement SafeFetchX unsafely and make CanUseSafeFetchX false for Zero Reviewed-by: sgehwolf, dholmes

8074345: Enable RewriteBytecodes when VM runs with CDS Summary: Enable bytecode rewriting when CDS turned on. Reviewed-by: coleenp, iklam Contributed-by: yumin.qi@oracle.com, ioi.lam@oracle.com

Merge