8181872: C1: possible overflow when strength reducing integer multiply by constant
Reviewed-by: kvn

8181292: Backport Rename internal Unsafe.compare methods from 10 to 9
Reviewed-by: psandoz, dholmes, thartmann, kvn
Contributed-by: ron.pressler@oracle.com, claes.redestad@oracle.com

8175340: Possible invalid memory accesses due to ciMethodData::bci_to_data() returning NULL
Summary: Check values returned by ciMethodData::bci_to_data() where necessary.
Reviewed-by: kvn

8173373: C1: NPE is thrown instead of LinkageError when accessing inaccessible field on NULL receiver
Summary: Deoptimize if receiver null check of unresolved field access fails to throw NoClassDefFoundError instead of NPE.
Reviewed-by: vlivanov

8160543: C1: Crash in java.lang.String.indexOf in some java.sql tests
Summary: C1 must use unverified entry point for unloaded methods.
Reviewed-by: vlivanov, goetz

8166561: [s390] Adaptions needed for s390 port in C1 and C2.
Reviewed-by: kvn

8166806: Add intrinsic support for writer used in event based tracing
Reviewed-by: kvn, egahlin

Merge

8154122: Intrinsify fused mac operations
Summary: added FMA intrinsics on x86
Reviewed-by: kvn, aph, darcy

8164508: unexpected profiling mismatch in c1 generated code
Summary: made 8027631 first arg skip applicable to not inlined virtual callsite too.
Reviewed-by: kvn

Merge

8161720: Better byte behavior for off-heap data
Summary: Normalize boolean values read with Unsafe.
Reviewed-by: aph, simonis, jrose, psandoz

8163589: Add back class id intrinsic method for event based tracing
Reviewed-by: kvn, mgronlun

Merge

8159620: -XX:-UseOnStackReplacement does not work together with -XX:+TieredCompilation on ppc64 and sparc
Reviewed-by: goetz, kvn, thartmann

8155638: Resource allocated BitMaps are often cleared twice
Reviewed-by: neliasso, kvn

Merge

8151268: Wire up the x86 _vectorizedMismatch stub routine in C1
Reviewed-by: kvn

8155162: java.util.zip.CRC32C Interpreter/C1 intrinsics support on SPARC
Reviewed-by: kvn
Contributed-by: ahmed.khawaja@oracle.com

Merge

8149374: Replace C1-specific collection classes with universal collection classes
Reviewed-by: kvn, mgerdin, coleenp

8147844: new method j.l.Runtime.onSpinWait() and the corresponding x86 hotspot instrinsic
Summary: adds c1 & c2 x86 intrinsics for j.l.Runtime.onSpinWait() that utilize the PAUSE instruction
Reviewed-by: iveresov, kvn
Contributed-by: Ivan Krylov <ivan@azul.com>, Yuri Gaevsky <ygaevsky@azul.com>

8132051: Better byte behavior
Reviewed-by: bdelsart, roland, kvn, jrose, ahgross
Contributed-by: coleen.phillimore@oracle.com, roland.westerlin@oracle.com, vladimir.kozlov@oracle.com, john.r.rose@oracle.com

8151724: Remove -XX:GenerateCompilerNullChecks
Summary: Removed the broken GenerateCompilerNullChecks flag.
Reviewed-by: zmajo, kvn

8151818: C1: LIRGenerator::move_to_phi can't deal with illegal phi
Reviewed-by: iveresov, kvn

Merge

8150669: C1 intrinsic for Class.isPrimitive
Reviewed-by: twisti, vlivanov, redestad

8143226: Minor updates to Event Based tracing
Reviewed-by: jbachorik, egahlin

8148047: Move the vtable length field to Klass
Reviewed-by: cjplummer, twisti, coleenp, kbarrett

8147461: Use byte offsets for vtable start and vtable length offsets
Reviewed-by: cjplummer, coleenp, dnsimon

8143817: C1: Platform dependent stack space not preserved for all runtime calls
Reviewed-by: roland

Merge

8138895: C1: PPC64 Port needs special register for Locks in synchronization code
Reviewed-by: vlivanov, goetz

8138892: C1: Improve counter overflow checking
Reviewed-by: iveresov, goetz, twisti, vlivanov

Merge

8138894: C1: Support IRIW on weak memory platforms
Reviewed-by: twisti, goetz

8143014: Access PtrQueue member offsets through derived classes
Summary: Moved accessors to derived classes and updated callers.
Reviewed-by: tschatzl, jmasa, twisti

8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp, roland

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8135018: AARCH64: Missing memory barriers for CMS collector
Summary: Add StoreStore barrier when CMS needs them
Reviewed-by: tschatzl

8072817: CardTableExtension kind() should be BarrierSet::CardTableExtension
Summary: Use BarrierSet::CardTableForRS where needed, and update concrete bs tags.
Reviewed-by: jwilhelm, jmasa

8071731: Better scaling for C1
Reviewed-by: kvn, iveresov

8079315: UseCondCardMark broken in conjunction with CMS precleaning on x86
Summary: Add the necessary StoreLoad barrier in interpreter, C1 and C2 for x86
Reviewed-by: tschatzl

8080627: JavaThread::satb_mark_queue_offset() is too big for an ARM ldrsb instruction
Reviewed-by: roland, kbarrett

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david

8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
Summary: Introduce the PreserveFramePointer flag to control if RBP is used as the frame pointer or as a general purpose register.
Reviewed-by: kvn, roland, dlong, enevill, shade

8076987: C1 should support conditional card marks (UseCondCardMark)
Reviewed-by: iveresov, roland

8067891: Remove vestigal G1SATBCT barrier set kind
Summary: Remove all case statements specifying G1SATBCT
Reviewed-by: tschatzl, kbarrett

8072383: resolve conflicts between open and closed ports
Summary: refactor close to remove references to closed ports
Reviewed-by: kvn, simonis, dholmes

8069016: Add BarrierSet downcast support
Summary: Add FakeRttiSupport utility and use to provide barrier_set_cast.
Reviewed-by: jmasa, sangheki

Merge

8072911: Remove includes of oop.inline.hpp from .hpp files
Reviewed-by: brutisso, coleenp, jwilhelm, simonis, dholmes

8068977: Remove unused sun.misc.Unsafe prefetch intrinsic support
Reviewed-by: kvn, vlivanov

8071805: BarrierSet::Other is not used and should be removed.
Summary: Remove all occurences of BarrierSet::Other because the barrier set kind is never set to Other.
Reviewed-by: tschatzl, kbarrett

8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
Summary: Changed interpreter and compilation policies to allow using CompileThresholdScaling on a per-method level
Reviewed-by: jrose, kvn

8059621: JVM crashes with "unexpected index type" assert in LIRGenerator::do_UnsafeGetRaw
Summary: Get types from LIR instructions instead of HIR
Reviewed-by: kvn

8058744: Crash in C1 OSRed method w/ Unsafe usage
Summary: Fix UnsafeRawOp optimizations
Reviewed-by: kvn, drchase, vlivanov

8049325: Introduce and clean up umbrella headers for the files in the cpu subdirectories.
Summary: Introduce and clean up umbrella headers for the files in the cpu subdirectories.
Reviewed-by: lfoltan, coleenp, dholmes

8031994: java/lang/Character/CheckProp test times out
Reviewed-by: iveresov, roland

8032463: VirtualDispatch test timeout with DeoptimizeALot
Summary: Introduce code aging for warm method detection
Reviewed-by: kvn, twisti

8041481: JVM crashes with collect_args_for_profiling
Summary: method handle call to c1 intrinsic tries to profile popped argument
Reviewed-by: kvn, twisti

8039975: SIGSEGV in MethodData::next_data(ProfileData*)
Summary: profiling code in interpreter broken when argument profiling is off.
Reviewed-by: iveresov, kvn

8037140: C1: Incorrect argument type used for SharedRuntime::OSR_migration_end in LIRGenerator::do_Goto
Summary: Fix the type of osrBuffer parameter to depend on bitness
Reviewed-by: kvn, twisti

8033380: Experimental VM flag to enforce access atomicity
Summary: -XX:+AlwaysAtomicAccesses to unconditionally enforce the access atomicity.
Reviewed-by: roland, kvn, iveresov

8026253: New type profiling points: sparc support
Summary: c1 and interpreter support for new type profiling on sparc
Reviewed-by: kvn, twisti

8027631: "unexpected profiling mismatch" error with new type profiling
Summary: inlined method handle calls can call methods with different signatures
Reviewed-by: kvn, iveresov

8026495: JVM Crashes when started with -XX:+DTraceMethodProbes on Solaris x86_64
Summary: Fix wrong calling convention in LIR_Assembler::emit_unwind_handler(), T_METADATA support in calling convention generator, C1 register allocator
Reviewed-by: twisti, jrose

8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by: kvn, twisti

8008242: VerifyOops is broken on SPARC
Summary: Fixed displacement issues in SPARC macroassembler and ensure that getClass intrinsic temporary result is T_METADATA
Reviewed-by: kvn, twisti

8026054: New type profiling points: type of return values at calls
Summary: x86 interpreter and c1 type profiling for return values at calls
Reviewed-by: kvn, twisti

8023657: New type profiling points: arguments to call
Summary: x86 interpreter and c1 type profiling for arguments at calls
Reviewed-by: kvn, twisti

8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
Reviewed-by: kvn

8016474: Crash in sun.reflect.UnsafeObjectFieldAccessorImpl.get
Summary: C1's GetUnsafeObject G1 pre-barrier uses the wrong type to read the klass pointer.
Reviewed-by: iveresov, kvn

7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
Summary: add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test
Reviewed-by: kvn, twisti

8010724: [parfait] Null pointer dereference in hotspot/src/share/vm/c1/c1_LIRGenerator.cpp
Summary: added guarantee()
Reviewed-by: kvn

Merge

8011648: C1: optimized build is broken after 7153771
Summary: missing #ifdef ASSERT
Reviewed-by: kvn

Merge

8010862: The Method counter fields used for profiling can be allocated lazily.
Summary: Allocate the method's profiling related metadata until they are needed.
Reviewed-by: coleenp, roland

Merge

8003310: Enable -Wunused-function when compiling with gcc
Summary: Add the -Wunused-function flag and remove a number of unused functions.
Reviewed-by: dholmes, coleenp, kvn

8010934: assert failure in c1_LinearScan.cpp: "asumption: non-Constant instructions have only virtual operands"
Summary: incorrect code to skip some ArrayLength instructions in LIRGenerator
Reviewed-by: kvn

7153771: array bound check elimination for c1
Summary: when possible optimize out array bound checks, inserting predicates when needed.
Reviewed-by: never, kvn, twisti
Contributed-by: thomaswue <thomas.wuerthinger@oracle.com>

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

8004318: JEP-171: Support Unsafe fences intrinsics
Summary: Add three memory-ordering intrinsics to the sun.misc.Unsafe class.
Reviewed-by: twisti, kvn
Contributed-by: Aleksey Shipilev <aleksey.shipilev@oracle.com>

7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti

7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
Summary: C1 needs knowledge of T_METADATA at the LIR level.
Reviewed-by: kvn, coleenp

7195935: NPG: Some issues with compressed oops
Summary: Don't decompress the klass pointer in the G1 pre-barrier code when !UseCompressedKlassPointers
Reviewed-by: coleenp, brutisso

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

7192167: JSR 292: C1 has old broken code which needs to be removed
Reviewed-by: kvn, roland, jrose

7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
Summary: In C2 add software membar after load from Reference.referent field to prevent commoning of loads across safepoint since GC can change its value. In C1 always generate Reference.get() intrinsic.
Reviewed-by: roland, twisti, dholmes, johnc

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

7174928: JSR 292: unresolved invokedynamic call sites deopt and osr infinitely
Reviewed-by: kvn

7174218: remove AtomicLongCSImpl intrinsics
Reviewed-by: kvn, twisti
Contributed-by: Krystal Mok <sajia@taobao.com>

7171890: C1: add Class.isInstance intrinsic
Summary: Class.cast which calls Class.isInstance is heavily used by the new JSR 292 implementation
Reviewed-by: roland
Contributed-by: Krystal Mok <rednaxelafx@gmail.com>

7133857: exp() and pow() should use the x87 ISA on x86
Summary: use x87 instructions to implement exp() and pow() in interpreter/c1/c2.
Reviewed-by: kvn, never, twisti

7160570: Intrinsification support for tracing framework
Reviewed-by: sla, never

7120481: storeStore barrier in constructor with final field
Summary: Issue storestore barrier before constructor return if the constructor write final field.
Reviewed-by: dholmes, jrose, roland, coleenp
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

7131028: Switch statement takes wrong path
Summary: Pass correct type to branch in LIRGenerator::do_SwitchRanges()
Reviewed-by: kvn, never

7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
Summary: Moved sizeof(klassOopDesc), changed the return type to ByteSize and removed the _in_bytes suffix.
Reviewed-by: never, bdelsart, coleenp, jrose

7112085: assert(fr.interpreter_frame_expression_stack_size()==0) failed: only handle empty stacks
Summary: Move the inlinee invoke notification callback into inlinee preamble
Reviewed-by: kvn, never

7097679: Tiered: events with bad bci to Gotos reduced from Ifs
Summary: Save bci of instruction that produced Goto and use it to call back to runtime
Reviewed-by: kvn, never

7096639: Tiered: Incorrect counter overflow handling for inlined methods
Summary: Enable invocation events for inlinees
Reviewed-by: kvn

7053520: JSR292: crash in invokedynamic with C1 using tiered and compressed oops
Reviewed-by: iveresov, never

Merge

7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
Summary: Allow long type for offset in G1 code in compiler implementations of Unsafe.getObject
Reviewed-by: never, iveresov

7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
Summary: A referent object that is only weakly reachable at the start of concurrent marking but is re-attached to the strongly reachable object graph during marking may not be marked as live. This can cause the reference object to be processed prematurely and leave dangling pointers to the referent object. Implement a read barrier for the java.lang.ref.Reference::referent field by intrinsifying the Reference.get() method, and intercepting accesses though JNI, reflection, and Unsafe, so that when a non-null referent object is read it is also logged in an SATB buffer.
Reviewed-by: kvn, iveresov, never, tonyp, dholmes

7034967: C1: assert(false) failed: error (assembler_sparc.cpp:2043)
Summary: Fix -XX:+VerifyOops
Reviewed-by: kvn, never

7033154: Improve C1 arraycopy performance
Summary: better static analysis. Take advantage of array copy stubs.
Reviewed-by: never

7012648: move JSR 292 to package java.lang.invoke and adjust names
Summary: package and class renaming only; delete unused methods and classes
Reviewed-by: twisti

6965570: assert(!needs_patching && x->is_loaded(),"how do we know it's volatile if it's not loaded")
Reviewed-by: iveresov

Merge

6809483: hotspot:::method_entry are not correctly generated for "method()V"
Reviewed-by: iveresov, twisti

Merge

7010665: Misplaced membar in C1 implementation of Unsafe.get/putXXX
Summary: Modify membars to match regular volatile variable handling
Reviewed-by: iveresov, kvn, never

7009231: C1: Incorrect CAS code for longs on SPARC 32bit
Summary: Fix CAS of longs on SPARC 32bit and cmove on SPARC 64bit.
Reviewed-by: kvn

7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
Summary: C1 with profiling doesn't check whether the MDO has been really allocated, which can silently fail if the perm gen is full. The solution is to check if the allocation failed and bailout out of inlining or compilation.
Reviewed-by: kvn, never

6985015: C1 needs to support compressed oops
Summary: This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered.
Reviewed-by: twisti, kvn, never, phh

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

6992477: fix for 6991512 broke sparc barriers
Reviewed-by: kvn, iveresov

6991512: G1 barriers fail with 64bit C1
Summary: Fix compare-and-swap intrinsic problem with G1 post-barriers and issue with branch ranges in G1 stubs on sparc
Reviewed-by: never, kvn

6988346: 6986046 breaks tiered
Summary: adjusted profiling code generation to use the new ValueStack implementation; lowered optimization level for c1_LinearScan.cpp on solaris x64.
Reviewed-by: kvn, never

6986046: C1 valuestack cleanup
Summary: fixes an historical oddity in C1 with inlining where all of the expression stacks are kept in the topmost ValueStack instead of being in their respective ValueStacks.
Reviewed-by: never
Contributed-by: Christian Wimmer <cwimmer@uci.edu>

6972540: sun/nio/ch/SocketChannelImpl compilation crashed when executing CompileTheWorld
Reviewed-by: kvn

6953144: Tiered compilation
Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.
Reviewed-by: kvn, never, phh, twisti

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

6958292: C1: Enable parallel compilation
Summary: Enable parallel compilation in C1
Reviewed-by: never, kvn

Merge

6955349: C1: Make G1 barriers work with x64
Summary: This fixes G1 barriers in c1 on x64.
Reviewed-by: never

6930772: JSR 292 needs to support SPARC C1
Summary: C1 for SPARC needs to support JSR 292.
Reviewed-by: never, jrose

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

6939930: exception unwind changes in 6919934 hurts compilation speed
Reviewed-by: twisti

6932091: JSR 292 x86 code cleanup
Summary: Some code cleanups found during the JSR 292 SPARC port.
Reviewed-by: kvn, never

6919934: JSR 292 needs to support x86 C1
Summary: This implements JSR 292 support for C1 x86.
Reviewed-by: never, jrose, kvn

6902182: 4/4 Starting with jdwp agent should not incur performance penalty
Summary: Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations.
Reviewed-by: never, kvn, dcubed
Contributed-by: tom.deneau@amd.com

6769124: various 64-bit fixes for c1
Reviewed-by: never

6863023: need non-perm oops in code cache for JSR 292
Summary: Make a special root-list for those few nmethods which might contain non-perm oops.
Reviewed-by: twisti, kvn, never, jmasa, ysr

6849574: VM crash using NonBlockingHashMap (high_scale_lib)
Reviewed-by: kvn

6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
Summary: Cache Jvmti and DTrace flags used by Compiler.
Reviewed-by: never

6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

6757316: load_constant() produces a wrong long constant, with high a low words swapped
Reviewed-by: rasbold, jrose, kvn

Merge

Merge

6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr

6754988: Update copyright year
Summary: Update for files that have been modified starting July 2008
Reviewed-by: ohair, tbell

5108146: Merge i486 and amd64 cpu directories
6459804: Want client (c1) compiler for x86_64 (amd64) for faster start-up
Reviewed-by: kvn

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