Merge

8158871: Long response times with G1 and StringDeduplication Reviewed-by: stefank, sjohanss, tschatzl, dfazunen

8148813: Windows os::check_heap needs more information Summary: added ring buffer to log info while walking the heap Reviewed-by: mgronlun, dholmes, ccheung

Merge

8160197: [JVMCI] AllocatableValue.toString overrides are missing reference information Reviewed-by: kvn

Merge

8159730: compiler/jvmci/compilerToVM/IsMatureTest failed with "Multiple times invoked method should have method data (assert failed: 0 != 0)" Reviewed-by: kvn

8159803: Jittester: FileAlreadyExists exception during tests generation Reviewed-by: iignatyev

8158650: [jittester] when generating tests with default parameters, generation hangs after 98 test Reviewed-by: kvn, iignatyev

8159976: PPC64: Add missing intrinsics for sub-word atomics Reviewed-by: shade, goetz

8159613: [Findbugs] various warnings reported for JVMCI sources Reviewed-by: kvn, twisti

Merge

8158850: [JVMCI] be more precise when enforcing OopMapValue encoding limitations Reviewed-by: kvn

Merge

8158581: ciReplay can not be run w/ JFR enabled Reviewed-by: iignatyev, kvn

8132920: use package in compiler testlibraries Reviewed-by: kvn, psandoz

8160025: compiler/testlibrary/uncommontrap/Verifier doesn't close FileReader Reviewed-by: kvn

8159856: [JVMCI] InterpreterFrameSizeTest.java failed compilation Reviewed-by: kvn, iveresov

8156803: Turn StressLCM/StressGCM flags to diagnostic Reviewed-by: kvn, ctornqvi

8160006: Fix AArch64 after changes made by 8151661 Reviewed-by: kvn

8151661: Performance regression on Solaris-SPARC in 9-b103 Reviewed-by: kvn, aph Contributed-by: rahul.v.raghavan@oracle.com

8158039: VarHandle float/double field/array access should support CAS/set/add atomics Reviewed-by: shade, vlivanov, darcy

8159720: Failure of C2 compilation with tiered prevents some C1 compilations. Summary: If C2 fails to compile a method with tiered compilation, then it should mark the method as not compileable on the C2 tier only. Reviewed-by: twisti, thartmann

8139379: Tests fail with assert(nm->insts_contains(original_pc)) failed: original PC must be in nmethod Reviewed-by: mgronlun, neliasso

8159715: Fix for 8072422 is incorrect Summary: Fixed several issues introduced by 8072422. Reviewed-by: zmajo, kvn

8159149: Several compiler tests fail with minimal VM Reviewed-by: kvn, psandoz

8158754: compilercontrol tests: RandomCommandsTest.java and RandomValidCommandsTest.java - fail in PIT Reviewed-by: neliasso

8159010: [JVMCI] crashes with class redefinition Reviewed-by: kvn

8159236: [JVMCI] Window-saved SPARC registers should not be considered callee-save Reviewed-by: iveresov

8158260: PPC64: unaligned Unsafe.getInt can lead to the generation of illegal instructions Summary: Adjust instruction generation. Reviewed-by: goetz Contributed-by: gromero@linux.vnet.ibm.com, horii@jp.ibm.com

8159167: [JVMCI] fix HotSpotVMConfig startup performance Reviewed-by: iveresov

8149043: Fix code indentation in test/compiler/stable tests Reviewed-by: vlivanov

8157181: Compilers accept modification of final fields outside initializer methods Summary: Track initialized final field updates; disable constant folding if an update is detected. Enforce final field update rules introduced by JVMS-7 (but only for JDK 9). Reviewed-by: vlivanov, dnsimon, forax, never, kvn, coleenp

8158232: PPC64: improve byte, int and long array copy stubs by using VSX instructions Reviewed-by: goetz, mdoerr Contributed-by: Michihiro Horie <horie@jp.ibm.com>

8157726: VarHandles/Unsafe should support sub-word atomic ops Reviewed-by: psandoz, vlivanov, lagergren

8159244: Partially initialized string object created by C2's string concat optimization may escape Summary: Emit release barrier after String creation to prevent partially initialized object from escaping. Reviewed-by: kvn

8158360: C1: SEGV in generated code Summary: update test to store Object fields Reviewed-by: kvn

8159282: quarantine compiler/jvmci/compilerToVM/ReprofileTest.java Reviewed-by: iignatyev

Merge

8160088: update hotspot tests depending on GC to use @requires vm.gc.X Reviewed-by: iignatyev, mchernov, dholmes

8160102: Typo in message for NULL memory size arguments in diagnosticArgument.cpp Reviewed-by: dholmes, rehn

Merge

8157758: JDK9 does not compile on Linux with GCC 6.1 because left-shifting a negative number has undefined behavior Summary: Replace shifts of -1 with shifts of ~0u. Reviewed-by: kbarrett, mockner Contributed-by: alexhenrie24@gmail.com

8160189: Fix for 8159335 breaks AArch64 Reviewed-by: kvn

8155099: Remove duplicate comments from G1Policy Reviewed-by: jmasa, drwhite

Merge

8152438: Threads may do significant work out of the non-shared overflow buffer Summary: Before processing an element in the non-shared overflow buffer, try to push it into the local shared buffer to keep it full. Reviewed-by: jmasa, ehelin, sjohanss

8159370: Add FlagGuard for easier modification of flags for unit tests Reviewed-by: kbarrett, jwilhelm

8153743: AllocateHeap() and ReallocateHeap() should use ALWAYSINLINE macro Reviewed-by: dholmes, zgu

8155949: Support relaxed semantics in cmpxchg Reviewed-by: dholmes, kbarrett, goetz, aph Contributed-by: horii@jp.ibm.com, martin.doerr@sap.com

8151283: Implement setting jtreg @requires property vm.isG1Supported. Reviewed-by: tschatzl, iignatyev, mchernov

8159590: Remove deprecated methods from jdk.internal.misc.VM Reviewed-by: chegar, dholmes

8155730: HeapInfoDCmd should get Heap_lock Reviewed-by: tschatzl, jprovino

8159666: Better CDS support for Event-based tracing Reviewed-by: jiangli, mgronlun

Merge

8159470: Error message for ICCE for MethodHandle constant pool not helpful Summary: Reworded message and added test. Reviewed-by: hseigel, gtriantafill, dholmes

8157592: StackTraceLogging fails with stack overflow on 32-bit Windows Reviewed-by: coleenp, dholmes, jiangli

8159366: Header guards missing for unittest.hpp Reviewed-by: jwilhelm, stefank, pliden

8159365: assert is not defined for unit tests Reviewed-by: jwilhelm, coleenp

8159364: Gtest unit tests does not support PCH Reviewed-by: erikj, jwilhelm, gtriantafill

8159340: Add extension to CompileGtest.gmk Reviewed-by: dholmes, gtriantafill, jwilhelm

8156181: UL: File size limit on 32 bit Linux Reviewed-by: mlarsson, dholmes

Merge

8159335: Fix problems with stack overflow handling. Reviewed-by: dlong, coleenp, mdoerr