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

8168699: Validate special case invocations
Reviewed-by: acorn, kvn, lfoltan, ctornqvi, ahgross, vlivanov

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

8174721: C1: Inlining through MH invokers/linkers in unreachable code is unsafe
Reviewed-by: iveresov

8172751: OSR compilation at unreachable bci causes C1 crash
Summary: Bailout if OSR entry is unreachable.
Reviewed-by: thartmann
Contributed-by: Andreas Woess <andreas.woess@oracle.com>

8167656: Unstable MethodHandle inlining causing huge performance variations
Summary: Profile calls without a reciever
Reviewed-by: jrose, vlivanov, kvn

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

Merge

8134389: Crash in HotSpot with jvm.dll+0x42b48 ciObjectFactory::create_new_metadata
Summary: Always obtain return type from declared_signature for Invoke::declared_type. TypeCast return value to declared_signature return type for inlined lforms.
Reviewed-by: kvn, vlivanov

8081800: AbstractMethodError when evaluating a private method in an interface via debugger
Reviewed-by: acorn, dcubed, coleenp

Merge

8164122: C1: assert(false) failed: stack or locks not matching (invalid bytecodes)
Summary: Ignore return value if MH intrinsic returns void
Reviewed-by: roland, kvn

8164523: Clean up metadata for event based tracing
Reviewed-by: mlarsson, mgronlun

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

8158228: C1 incorrectly folds mismatched loads from stable arrays
Summary: Disable constant folding for mismatched loads from stable arrays.
Reviewed-by: vlivanov

8150921: Update Unsafe getters/setters to use double-register variants
Reviewed-by: dholmes, shade, psandoz, jrose

8141501: Problems with BitMap buffer management
Reviewed-by: pliden, kbarrett

Merge

8154172: C1: NPE is thrown instead of linkage error when invoking nonexistent method
Reviewed-by: kvn

Merge

Merge

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

8152590: C2: @Stable support doesn't always work w/ incremental inlining
Reviewed-by: kvn

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

Merge

8132524: Missing includes to resourceArea.hpp
Summary: Files that use ResourceMark are missing the include of resourceArea.hpp
Reviewed-by: tschatzl, jwilhelm

8152698: Remove obsolete Unsafe.putOrdered{X} methods, usages, runtime and compiler support
Reviewed-by: kvn, psandoz

8143407: C1: @Stable array support
Reviewed-by: twisti

8150320: C1: Illegal bci in debug info for MH::linkTo* methods
Reviewed-by: kvn, dlong

8140659: C1: invokedynamic call patching violates JVMS-6.5.invokedynamic
Reviewed-by: roland

8046936: JEP 270: Reserved Stack Areas for Critical Sections
Reviewed-by: acorn, dcubed

Merge

8140424: don't prefix developer and notproduct flag variables with CONST_ in product builds
Reviewed-by: goetz, stefank

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

Merge

8141044: C1 should fold (this == null) to false
Reviewed-by: jrose, roland

8141132: JEP 254: Compact Strings
Summary: Adopt a more space-efficient internal representation for strings.
Reviewed-by: alanb, bdelsart, coleenp, iklam, jiangli, jrose, kevinw, naoto, pliden, roland, smarks, twisti
Contributed-by: Brent Christian <brent.christian@oracle.com>, Vivek Deshpande <vivek.r.deshpande@intel.com>, Tobias Hartmann <tobias.hartmann@oracle.com>, Charlie Hunt <charlie.hunt@oracle.com>, Vladimir Kozlov <vladimir.kozlov@oracle.com>, Roger Riggs <roger.riggs@oracle.com>, Xueming Shen <xueming.shen@oracle.com>, Aleksey Shipilev <aleksey.shipilev@oracle.com>, Sandhya Viswanathan <sandhya.viswanathan@intel.com>

Merge

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

8137167: JEP165: Compiler Control: Implementation task
Summary: Compiler Control JEP
Reviewed-by: roland, twisti, zmajo, simonis

Merge

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

8135068: Extract method matchers from CompilerOracle
Summary: Ecapsulate code to enable reuse
Reviewed-by: roland, kvn

8135067: Preparatory refactorings for compiler control
Summary: Extract CompileTask and clean up
Reviewed-by: roland

8132457: Unify command-line flags controlling the usage of compiler intrinsics
Summary: Cleanup processing of command-line flags controlling intrinsics.
Reviewed-by: kvn

8130832: Extend the WhiteBox API to provide information about the availability of compiler intrinsics
Summary: Add a new method, sun.hotspot.WhiteBox.isIntrinsicAvailable, that can be used to determine if an intrinsic is available.
Reviewed-by: kvn, jrose

8076112: Add @HotSpotIntrinsicCandidate annotation to indicate methods for which Java Runtime has intrinsics
Summary: Annotate possibly intrinsified methods with @HotSpotIntrinsicCandidate. Add checks omitted by intrinsics to the library code. Add CheckIntrinsics flags to check consistency of intrinsics.
Reviewed-by: jrose, kvn, thartmann, vlivanov, abuckley, darcy, ascarpino, briangoetz, alanb, aph, dnsimon

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

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

8073607: add trace events for inlining
Reviewed-by: kvn, fzhinkin, mgronlun

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

Merge

Merge

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

8049532: LogCompilation: C1: inlining tree is flat (no depth is stored)
Reviewed-by: roland, iveresov

8043546: C1 optimizes @Stable instance fields with default values
Reviewed-by: kvn, jrose

8046542: [I.finalize() calls from methods compiled by C1 do not cause IllegalAccessError on Sparc
Summary: call to Object.finalize() sometimes allowed by compilers on array type
Reviewed-by: iveresov, vlivanov

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

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

8035887: VM crashes trying to force inlining the recursive call
Reviewed-by: kvn, twisti

8031818: Experimental VM flag for enforcing safe object construction
Summary: -XX:+AlwaysSafeConstructors to unconditionally emit the trailing constructor barrier.
Reviewed-by: kvn, roland

8035493: JVMTI PopFrame capability must instruct compilers not to prune locals
Reviewed-by: kvn, sla, coleenp, sspitsyn

8028064: tiered may collect wrong receiver type at virtual call
Summary: when unique callee is known at compile time, recorded class may be wrong
Reviewed-by: kvn, iveresov

8027632: assert(xtype->klass_is_exact()) failed: Should be exact at graphKit.cpp
Summary: receiver type collected by profiling for default method may be interface
Reviewed-by: kvn, iveresov

8026735: Stream tests throw java.lang.IncompatibleClassChangeError
Summary: Put a band-aid to disable CHA-based inlining for interfaces with default methods in C1
Reviewed-by: kvn, twisti

8012941: JSR 292: too deep inlining might crash compiler because of stack overflow
Reviewed-by: kvn, twisti

8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
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

8022585: VM crashes when ran with -XX:+PrintInlining
Summary: use adr_at() to access inline info structures in growableArray. Add ability to specify print inlining per method.
Reviewed-by: twisti

8022283: Assertion failed: assert(is_loaded() && field->holder()->is_loaded() && klass()->is_subclass_of (field->holder())) failed: invalid access
Reviewed-by: roland, twisti

7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
Summary: Do patching rather bailing out for unlinked call with appendix
Reviewed-by: twisti, 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

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>

8005439: no message about inline method if it specifed by CompileCommand
Reviewed-by: kvn, vlivanov
Contributed-by: Igor Ignatyev <igor.ignatyev@oracle.com>

8006095: C1: SIGSEGV w/ -XX:+LogCompilation
Summary: avoid printing inlining decision when compilation fails
Reviewed-by: kvn, roland

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>

8001077: remove ciMethod::will_link
Summary: Removed will_link and changed all calls to is_loaded().
Reviewed-by: kvn

8000821: JSR 292: C1 fails to call virtual method (JRUBY-6920)
Reviewed-by: kvn

7177003: C1: LogCompilation support
Summary: add LogCompilation support in C1 - both client and tiered mode.
Reviewed-by: twisti, kvn

7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose

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>

7192406: JSR 292: C2 needs exact return type information for invokedynamic and invokehandle call sites
Reviewed-by: kvn

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

7187290: nightly failures after JSR 292 lazy method handle update
Reviewed-by: kvn, twisti

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>

6711908: JVM needs direct access to some annotations
Summary: Add annotation extraction code to class file parser.
Reviewed-by: twisti, jrose, kvn
Contributed-by: michael.haupt@oracle.com

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

7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
Summary: Change implementor to embedded instanceKlass field.
Reviewed-by: sspitsyn, minqi, coleenp

Merge

6910464: Lookupswitch and Tableswitch default branches not recognized as safepoints
Summary: C1 does not recognize the default branch of a lookupswitch or tableswitch bytecode to be a safepoint if backward.
Reviewed-by: kvn, 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>

7126041: jdk7u4 b05 and b06 crash with RubyMine 3.2.4, works well with b04
Summary: Goto that replaces a If mistaken to be a back branch and triggers erroneous OSR compilation.
Reviewed-by: never, iveresov

7090976: Eclipse/CDT causes a JVM crash while indexing C++ code
Summary: too optimistic inlining decision confuses local value numbering.
Reviewed-by: never

7132180: JSR 292: C1 JVM crash with ClassValue/MethodHandle
Reviewed-by: never

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

7085404: JSR 292: VolatileCallSites should have push notification too
Reviewed-by: never, kvn

7079673: JSR 292: C1 should inline bytecoded method handle adapters
Reviewed-by: never

7078382: JSR 292: don't count method handle adapters against inlining budgets
Reviewed-by: kvn, never

7060619: C1 should respect inline and dontinline directives from CompilerOracle
Reviewed-by: kvn, iveresov

7057120: Tiered: Allow C1 to inline methods with loops
Summary: Recompile the enclosing methods without inlining of the method that has OSRed to level 4 or recompile the enclosing method at level 4.
Reviewed-by: kvn, never

Merge

Merge

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

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

7022998: JSR 292 recursive method handle calls inline themselves infinitely
Reviewed-by: never, kvn

7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank

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

7021603: crash in fill_sync_handler with ExtendedDTrace probes
Reviewed-by: iveresov

Merge

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

4926272: methodOopDesc::method_from_bcp is unsafe
Reviewed-by: coleenp, jrose, kvn, dcubed

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

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>

6919069: client compiler needs to capture more profile information for tiered work
Summary: Added profiling of instanceof and aastore.
Reviewed-by: kvn, jrose, never

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

6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never

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

Merge

6939207: refactor constant pool index processing
Summary: Factored cleanup of instruction decode which prepares for enhanced ldc semantics.
Reviewed-by: twisti

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

6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
Reviewed-by: kvn, twisti

6943485: JVMTI always on capabilities change code generation too much
Reviewed-by: twisti, dcubed

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

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

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

6862919: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair

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

6655646: dynamic languages need dynamically linked call sites
Summary: invokedynamic instruction (JSR 292 RI)
Reviewed-by: twisti, never

6785258: Update copyright year
Summary: Update copyright for files that have been modified starting July 2008 to Dec 2008
Reviewed-by: katleman, ohair, tbell

6756768: C1 generates invalid code
Reviewed-by: kvn, jrose

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