Mercurial > hg > graal-compiler
annotate CHANGELOG.md @ 22527:c9ebb39f4582
Explicitly store slot kinds in DebugInfo.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Fri, 28 Aug 2015 13:36:09 +0200 |
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1 # GraalVM Changelog |
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2 |
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3 This changelog summarizes major changes between Graal versions relevant to developers building technology on top of Graal. The main focus is on APIs exported by Graal. |
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4 |
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5 ## `tip` |
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6 ... |
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7 |
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8 ## Version 0.8 |
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9 15-Jul-2015, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.8) |
21229 | 10 ### Graal |
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11 * Add support for constructing low-level IR in SSA form (default behavior). |
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12 * Add support for SSA linear scan register allocation (default behavior). |
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13 * Remove dummy parameter `includeAbstract` from `ResolvedJavaType#resolveMethod()`; The behavior is now the `includeAbstract==true` case. The `includeAbstract==false` variant is available via `resolveConcreteMethod()`. |
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14 * HotSpot modifications have been renamed to JVMCI in preparation for [JEP 243](http://openjdk.java.net/jeps/243). As a result HotSpot options containing "Graal" have been changed to "JVMCI" (e.g., -XX:+BootstrapJVMCI). |
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15 * All the APIs used to interface with the VM (`api.meta`, `api.code` etc.) have been moved to `jdk.internal.jvmci` packages (e.g., `jdk.internal.jvmci.meta`). |
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16 * Fast JVMCI services do not need to implement an interface anymore, implementations simply need to be annotated with `jdk.internal.jvmci.service.ServiceProvider`. |
21229 | 17 |
18 ### Truffle | |
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19 * Moved Truffle to it own [repository](http://lafo.ssw.uni-linz.ac.at/hg/truffle/) |
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20 |
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21 ## Version 0.7 |
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22 29-Apr-2015, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.7) |
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23 ### Graal |
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24 * By default the Graal code is now only compiled by C1 which should improve application start-up. |
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25 * Merged with jdk8u40-b25. |
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26 * The Graal class loader now loads all lib/graal/graal*.jar jars. |
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27 * Fast Graal services (see com.oracle.graal.api.runtime.Service) are now looked up using service files in lib/graal/services. |
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28 * Add utilities ModifiersProvider#isConcrete, ResolvedJavaMethod#hasBytecodes, ResolvedJavaMethod#hasReceiver to Graal API. |
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29 * Add `GraalDirectives` API, containing methods to influence compiler behavior for unittests and microbenchmarks. |
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30 * Introduce `LIRSuites`, an extensible configuration for the low-level compiler pipeline. |
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31 |
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32 ### Truffle |
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33 * New, faster partial evaluation (no more TruffleCache). |
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34 * If a method is annotated with @ExplodeLoop and contains a loop that can not be exploded, partial evaluation will fail. |
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35 * Truffle background compilation is now multi-threaded. |
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36 * Experimental merge=true flag for @ExplodeLoop allows building bytecode-based interpreters (see BytecodeInterpreterPartialEvaluationTest). |
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37 * Added Node#deepCopy as primary method to copy ASTs. |
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38 * Disable inlining across Truffle boundary by default. New option TruffleInlineAcrossTruffleBoundary default false. |
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39 * Node.replace(Node) now guards against non-assignable replacement, and Node.isReplacementSafe(Node) checks in advance. |
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40 * Instrumentation: AST "probing" is now safe and implemented by Node.probe(); language implementors need only implement Node.isInstrumentable() and Node.createWrapperNode(). |
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41 * Instrumentation: A new framework defines a category of simple "instrumentation tools" that can be created, configured, and installed, after which they autonomously collect execution data of some kind. |
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42 * Instrumentation: A new example "instrumentation tool" is a language-agnostic collector of code coverage information (CoverageTracker); there are two other examples. |
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43 * Removed unsafe compiler directives; use `sun.misc.Unsafe` instead. |
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44 * Removed `Node#onAdopt()`. |
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45 |
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46 ### Truffle-DSL |
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47 * Implemented a new generated code layout that reduces the code size. |
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48 * Changed all methods enclosed in a @TypeSystem must now be static. |
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49 * Changed all methods enclosed in generated type system classes are now static. |
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50 * Deprecated the type system constant used in the generated type system classes. |
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51 * Changed NodeFactory implementations are no longer generated by default. Use {Node}Gen#create instead of {Node}Factory#create to create new instances of nodes. |
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52 * Added @GenerateNodeFactory to generate NodeFactory implementations for this node and its subclasses. |
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53 * Deprecated @NodeAssumptions for removal in the next release. |
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54 * Deprecated experimental @Implies for removal in the next release. |
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55 * Added new package c.o.t.api.dsl.examples to the c.o.t.api.dsl project containing documented and debug-able Truffle-DSL use cases. |
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56 * Changed "typed execute methods" are no longer required for use as specialization return type or parameter. It is now sufficient to declare them in the @TypeSystem. |
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57 * Added @Cached annotation to express specialization local state. |
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58 * Added Specialization#limit to declare a limit expression for the maximum number of specialization instantiations. |
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59 * Changed syntax and semantics of Specialization#assumptions and Specialization#guards. They now use a Java like expression syntax. |
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60 * Changed guard expressions that do not bind any dynamic parameter are invoked just once per specialization instantiation. They are now asserted to be true on the fast path. |
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61 * Renamed @ImportGuards to @ImportStatic. |
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62 * Changed declaring a @TypeSystemReference for a node that contains specializations is not mandatory anymore. |
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63 * Changed types used in specializations are not restricted on types declared in the type system anymore. |
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64 * Changed nodes that declare all execute methods with the same number of evaluated arguments as specialization arguments do not require @NodeChild annotations anymore. |
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65 * Changed types used in checks and casts are not mandatory to be declared in the type system. |
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66 |
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67 ## Version 0.6 |
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68 19-Dec-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.6) |
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69 ### Graal |
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70 * Merged with jdk8u25-b17. |
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71 * Added `com.oracle.graal.api.meta.Remote` interface for future support of remote and replay compilation. |
17187 | 72 * Changed name suite specification from `mx/projects.py` to `mx/suite.py`. |
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73 * Changed semantics (and signature) of `ResolvedJavaType#resolveMethod()` (old behavior available via `resolveConcreteMethod()`). |
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74 * Moved `ResolvedJavaField#read[Constant]Value` and `getMethodHandleAccess()` to `ConstantReflectionProvider`. |
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75 |
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76 ### Truffle |
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77 * Instrumentation: add Instrumentable API for language implementors, with most details automated (see package `com.oracle.truffle.api.instrument`). |
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78 * The BranchProfile constructor is now private. Use BranchProfile#create() instead. |
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79 * Renamed @CompilerDirectives.SlowPath to @CompilerDirectives.TruffleBoundary |
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80 * Renamed RootNode#isSplittable to RootNode#isCloningAllowed |
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81 * Removed RootNode#split. Cloning ASTs for splitting is now an implementation detail of the Truffle runtime implementation. |
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82 * Renamed DirectCallNode#isSplittable to DirectCallNode#isCallTargetCloningAllowed |
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83 * Renamed DirectCallNode#split to DirectCallNode#cloneCallTarget |
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84 * Renamed DirectCallNode#isSplit to DirectCallNode#isCallTargetCloned |
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85 * Added PrimitiveValueProfile. |
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86 * Added -G:TruffleTimeThreshold=5000 option to defer compilation for call targets |
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87 * Added RootNode#getExecutionContext to identify nodes with languages |
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88 * Removed `FrameTypeConversion` interface and changed the corresponding `FrameDescriptor` constructor to have a default value parameter instead. |
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89 * Removed `CompilerDirectives.unsafeFrameCast` (equivalent to a `(MaterializedFrame)` cast). |
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90 * Added `TruffleRuntime#getCapability` API method. |
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91 * Added `NodeInterface` and allowed child field to be declared with interfaces that extend it. |
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92 * Added `CompilerOptions` and allowed it to be set for `ExecutionContext` and `RootNode`. |
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93 * Added experimental object API (see new project `com.oracle.truffle.api.object`). |
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94 |
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95 ## Version 0.5 |
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96 23-Sep-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.5) |
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97 ### Graal |
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98 * New register allocator optimization: `-G:+ConstantLoadOptimization`. |
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99 * SPARC backend is able to run benchmark and passing most of the JTTs. |
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100 * Fix: Stamp: interface types can not be trusted except after explicit runtime checks. |
17185 | 101 * Changed format of suite specification from a properties file (`mx/projects`) to a Python file (`mx/projects.py`). |
102 | |
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103 |
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104 ### Truffle |
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105 * Added `TruffleRuntime#getCallTargets()` to get all call targets that were created and are still referenced. |
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106 * Added `NeverValidAssumption` to complement `AlwaysValidAssumption`. |
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107 * Fixed a bug in `AssumedValue` that may not invalidate correctly. |
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108 * New option, `-G:+/-TruffleCompilationExceptionsAreThrown`, that will throw an `OptimizationFailedException` for compiler errors. |
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109 |
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110 ## Version 0.4 |
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111 19-Aug-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.4) |
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112 ### Graal |
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113 * Made initialization of Graal runtime lazy in hosted mode. |
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114 * Added supported for new `jrelibrary` dependency type in `mx/projects`. |
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115 * Java projects with compliance level higher than the JDKs specified by `JAVA_HOME` and `EXTRA_JAVA_HOMES` are ignored once `mx/projects` has been processed. |
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116 * `ResolvedJavaType.resolveMethod` now takes a context type used to perform access checks. It now works correctly regarding default methods. |
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117 * Removed Java based compilation queue (`CompilationQueue.java`). |
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118 * Enabled use of separate class loader (via `-XX:+UseGraalClassLoader`) for classes loaded from `graal.jar` to hide them from application classes. |
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119 |
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120 ### Truffle |
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121 * Change API for stack walking to a visitor: `TruffleRuntime#iterateFrames` replaces `TruffleRuntime#getStackTrace` |
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122 * New flag `-G:+TraceTruffleCompilationCallTree` to print the tree of inlined calls before compilation. |
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123 * `truffle.jar`: strip out build-time only dependency into a seperated JAR file (`truffle-dsl-processor.jar`) |
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124 * New flag `-G:+TraceTruffleCompilationAST` to print the AST before compilation. |
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125 * New experimental `TypedObject` interface added. |
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126 * Renamed flag `-G:+TruffleSplittingEnabled` to `-G:+TruffleSplitting` |
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127 * New flag `-G:+TruffleSplittingNew` to enable the experimental splitting mode based on function arguments. |
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128 * New flag `-G:+TruffleSplittingTypedInstanceStamps` to enable splitting for `TypedObject` instances. |
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129 * New flag `-G:+TruffleSplittingClassInstanceStamps` to enable splitting for Java object instances except `TypedObject`. |
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130 * New flag `-G:TruffleSplittingStartCallCount=3` which sets the number of minimal calls until splitting is performed. |
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131 * New flag `-G:-TruffleSplittingAggressive` if enabled splits every function call. |
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132 * Added `isVisited` method for `BranchProfile`. |
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133 * Added new `ConditionProfile`, `BinaryConditionProfile` and `CountingConditionProfile` utility classes to profile if conditions. |
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134 |
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135 ## Version 0.3 |
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136 9-May-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.3) |
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137 |
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138 ### Graal |
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139 * Explicit support for oop compression/uncompression in high level graph. |
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140 * LIRGenerator refactoring. |
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141 * Explicit types for inputs (InputType enum). |
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142 * Added graal.version system property to Graal enabled VM builds. |
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143 * Transitioned to JDK 8 as minimum JDK level for Graal. |
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144 * Added support for stack introspection. |
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145 * New MatchRule facility to convert multiple HIR nodes into specialized LIR |
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146 |
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147 ### Truffle |
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148 * The method `CallTarget#call` takes now a variable number of Object arguments. |
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149 * Support for collecting stack traces and for accessing the current frame in slow paths (see `TruffleRuntime#getStackTrace`). |
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150 * Renamed `CallNode` to `DirectCallNode`. |
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151 * Renamed `TruffleRuntime#createCallNode` to `TruffleRuntime#createDirectCallNode`. |
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152 * Added `IndirectCallNode` for calls with a changing `CallTarget`. |
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153 * Added `TruffleRuntime#createIndirectCallNode` to create an `IndirectCallNode`. |
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154 * `DirectCallNode#inline` was renamed to `DirectCallNode#forceInlining()`. |
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155 * Removed deprecated `Node#adoptChild`. |
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156 |
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157 ## Version 0.2 |
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158 25-Mar-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.2) |
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159 |
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160 ### Graal |
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162 * New methods for querying memory usage of individual objects and object graphs in Graal API (`MetaAccessProvider#getMemorySize`, `MetaUtil#getMemorySizeRecursive`). |
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163 * Added tiered configuration (C1 + Graal). |
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164 * Initial security model for Graal [GRAAL-22](https://bugs.openjdk.java.net/browse/GRAAL-22). |
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165 * New (tested) invariant that equality comparisons for `JavaType`/`JavaMethod`/`JavaField` values use `.equals()` instead of `==`. |
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166 * Made graph caching compilation-local. |
14647 | 167 * Added AllocSpy tool for analyzing allocation in Graal using the [Java Allocation Instrumenter](https://code.google.com/p/java-allocation-instrumenter/). |
15013 | 168 * Initial support for memory arithmetic operations on x86. |
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169 * Expanded Debug logging/dumping API to avoid allocation when this Debug facilities are not enabled. |
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170 |
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171 ### Truffle |
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172 * New API `TruffleRuntime#createCallNode` to create call nodes and to give the runtime system control over its implementation. |
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173 * New API `RootNode#getCachedCallNodes` to get a weak set of `CallNode`s that have registered to call the `RootNode`. |
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174 * New API to split the AST of a call-site context sensitively. `CallNode#split`, `CallNode#isSplittable`, `CallNode#getSplitCallTarget`, `CallNode#getCurrentCallTarget`, `RootNode#isSplittable`, `RootNode#split`. |
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175 * New API to inline a call-site into the call-graph. `CallNode#isInlinable`, `CallNode#inline`, `CallNode#isInlined`. |
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176 * New API for the runtime environment to register `CallTarget`s as caller to the `RootNode`. `CallNode#registerCallTarget`. |
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177 * Improved API for counting nodes in Truffle ASTs. `NodeUtil#countNodes` can be used with a `NodeFilter`. |
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178 * New API to declare the cost of a Node for use in runtime environment specific heuristics. See `NodeCost`, `Node#getCost` and `NodeInfo#cost`. |
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179 * Removed old API for `NodeInfo#Kind` and `NodeInfo#kind`. As a replacement the new `NodeCost` API can be used. |
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180 * Changed `Node#replace` reason parameter type to `CharSequence` (to enable lazy string building) |
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181 * Deprecated `Node#adoptChild` and `Node#adoptChildren`, no longer needed in node constructor |
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182 * New `Node#insert` method for inserting new nodes into the tree (formerly `adoptChild`) |
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183 * New `Node#adoptChildren` helper method that adopts all (direct and indirect) children of a node |
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184 * New API `Node#atomic` for atomic tree operations |
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185 * Made `Node#replace` thread-safe |
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186 |
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187 |
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188 ## Version 0.1 |
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189 5-Feb-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.1) |
13965 | 190 |
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191 ### Graal |
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192 |
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193 * Initial version of a dynamic Java compiler written in Java. |
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194 * Support for multiple co-existing GPU backends ([GRAAL-1](https://bugs.openjdk.java.net/browse/GRAAL-1)). |
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195 * Fixed a compiler bug when running RuneScape ([GRAAL-7](https://bugs.openjdk.java.net/browse/GRAAL-7)). |
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196 * Bug fixes ([GRAAL-4](https://bugs.openjdk.java.net/browse/GRAAL-4), [GRAAL-5](https://bugs.openjdk.java.net/browse/GRAAL-5)). |
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197 |
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198 ### Truffle |
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199 |
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200 * Initial version of a multi-language framework on top of Graal. |
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Bernhard Urban <bernhard.urban@jku.at>
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13879
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changeset
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201 * Update of the [Truffle Inlining API](http://mail.openjdk.java.net/pipermail/graal-dev/2014-January/001516.html). |