Mercurial > hg > truffle
annotate CHANGELOG.md @ 22161:e3c6cca3ef53
enforce explicit imports with Checkstyle (part 2)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 16 Sep 2015 21:32:52 +0200 |
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1 # Truffle Changelog |
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2 |
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3 This changelog summarizes major changes between Truffle versions relevant to languages implementors building upon the Truffle framework. The main focus is on APIs exported by Truffle. |
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4 |
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5 |
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6 ## `tip` |
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7 ### Truffle |
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9 | |
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10 ## Version 0.8 |
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11 17-Jul-2015, [Repository Revision](http://lafo.ssw.uni-linz.ac.at/hg/truffle/shortlog/graal-0.8) |
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13 * The Truffle repository no longer contains Graal |
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14 * TruffleVM is an entrypoint for creating, building and running multi language Truffle systems |
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15 * Implement TruffleLanguage and use @Registration to register your language into the TruffleVM system |
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16 * Include Truffle TCK (test compatibility kit) into your test cases to verify your language implementation is compliant enough |
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17 * Interoperability API polished |
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18 * Cleanup of Source related API |
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19 |
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20 ## Version 0.7 |
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21 29-Apr-2015, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.7) |
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22 ### Truffle |
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23 * New, faster partial evaluation (no more TruffleCache). |
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24 * If a method is annotated with @ExplodeLoop and contains a loop that can not be exploded, partial evaluation will fail. |
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25 * Truffle background compilation is now multi-threaded. |
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26 * Experimental merge=true flag for @ExplodeLoop allows building bytecode-based interpreters (see BytecodeInterpreterPartialEvaluationTest). |
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27 * Added Node#deepCopy as primary method to copy ASTs. |
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28 * Disable inlining across Truffle boundary by default. New option TruffleInlineAcrossTruffleBoundary default false. |
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29 * Node.replace(Node) now guards against non-assignable replacement, and Node.isReplacementSafe(Node) checks in advance. |
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30 * 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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31 * 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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32 * 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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33 * Removed unsafe compiler directives; use `sun.misc.Unsafe` instead. |
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34 * Removed `Node#onAdopt()`. |
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35 |
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36 ### Truffle-DSL |
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37 * Implemented a new generated code layout that reduces the code size. |
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38 * Changed all methods enclosed in a @TypeSystem must now be static. |
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39 * Changed all methods enclosed in generated type system classes are now static. |
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40 * Deprecated the type system constant used in the generated type system classes. |
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41 * 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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42 * Added @GenerateNodeFactory to generate NodeFactory implementations for this node and its subclasses. |
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43 * Deprecated @NodeAssumptions for removal in the next release. |
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44 * Deprecated experimental @Implies for removal in the next release. |
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45 * 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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46 * 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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47 * Added @Cached annotation to express specialization local state. |
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48 * Added Specialization#limit to declare a limit expression for the maximum number of specialization instantiations. |
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49 * Changed syntax and semantics of Specialization#assumptions and Specialization#guards. They now use a Java like expression syntax. |
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50 * 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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51 * Renamed @ImportGuards to @ImportStatic. |
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52 * Changed declaring a @TypeSystemReference for a node that contains specializations is not mandatory anymore. |
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53 * Changed types used in specializations are not restricted on types declared in the type system anymore. |
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54 * 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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55 * Changed types used in checks and casts are not mandatory to be declared in the type system. |
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56 |
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57 ## Version 0.6 |
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58 19-Dec-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.6) |
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59 ### Truffle |
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60 * Instrumentation: add Instrumentable API for language implementors, with most details automated (see package `com.oracle.truffle.api.instrument`). |
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61 * The BranchProfile constructor is now private. Use BranchProfile#create() instead. |
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62 * Renamed @CompilerDirectives.SlowPath to @CompilerDirectives.TruffleBoundary |
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63 * Renamed RootNode#isSplittable to RootNode#isCloningAllowed |
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64 * Removed RootNode#split. Cloning ASTs for splitting is now an implementation detail of the Truffle runtime implementation. |
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65 * Renamed DirectCallNode#isSplittable to DirectCallNode#isCallTargetCloningAllowed |
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66 * Renamed DirectCallNode#split to DirectCallNode#cloneCallTarget |
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67 * Renamed DirectCallNode#isSplit to DirectCallNode#isCallTargetCloned |
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68 * Added PrimitiveValueProfile. |
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69 * Added -G:TruffleTimeThreshold=5000 option to defer compilation for call targets |
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70 * Added RootNode#getExecutionContext to identify nodes with languages |
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71 * Removed `FrameTypeConversion` interface and changed the corresponding `FrameDescriptor` constructor to have a default value parameter instead. |
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72 * Removed `CompilerDirectives.unsafeFrameCast` (equivalent to a `(MaterializedFrame)` cast). |
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73 * Added `TruffleRuntime#getCapability` API method. |
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74 * Added `NodeInterface` and allowed child field to be declared with interfaces that extend it. |
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75 * Added `CompilerOptions` and allowed it to be set for `ExecutionContext` and `RootNode`. |
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76 * Added experimental object API (see new project `com.oracle.truffle.api.object`). |
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77 |
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78 ## Version 0.5 |
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79 23-Sep-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.5) |
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80 ### Truffle |
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81 * Added `TruffleRuntime#getCallTargets()` to get all call targets that were created and are still referenced. |
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82 * Added `NeverValidAssumption` to complement `AlwaysValidAssumption`. |
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83 * Fixed a bug in `AssumedValue` that may not invalidate correctly. |
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84 * New option, `-G:+/-TruffleCompilationExceptionsAreThrown`, that will throw an `OptimizationFailedException` for compiler errors. |
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85 |
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86 ## Version 0.4 |
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87 19-Aug-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.4) |
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88 ### Truffle |
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89 * Change API for stack walking to a visitor: `TruffleRuntime#iterateFrames` replaces `TruffleRuntime#getStackTrace` |
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90 * New flag `-G:+TraceTruffleCompilationCallTree` to print the tree of inlined calls before compilation. |
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91 * `truffle.jar`: strip out build-time only dependency into a seperated JAR file (`truffle-dsl-processor.jar`) |
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92 * New flag `-G:+TraceTruffleCompilationAST` to print the AST before compilation. |
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93 * New experimental `TypedObject` interface added. |
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94 * Renamed flag `-G:+TruffleSplittingEnabled` to `-G:+TruffleSplitting` |
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95 * New flag `-G:+TruffleSplittingNew` to enable the experimental splitting mode based on function arguments. |
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96 * New flag `-G:+TruffleSplittingTypedInstanceStamps` to enable splitting for `TypedObject` instances. |
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97 * New flag `-G:+TruffleSplittingClassInstanceStamps` to enable splitting for Java object instances except `TypedObject`. |
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98 * New flag `-G:TruffleSplittingStartCallCount=3` which sets the number of minimal calls until splitting is performed. |
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99 * New flag `-G:-TruffleSplittingAggressive` if enabled splits every function call. |
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100 * Added `isVisited` method for `BranchProfile`. |
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101 * Added new `ConditionProfile`, `BinaryConditionProfile` and `CountingConditionProfile` utility classes to profile if conditions. |
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102 |
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103 ## Version 0.3 |
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104 9-May-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.3) |
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105 ### Truffle |
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106 * The method `CallTarget#call` takes now a variable number of Object arguments. |
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107 * Support for collecting stack traces and for accessing the current frame in slow paths (see `TruffleRuntime#getStackTrace`). |
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108 * Renamed `CallNode` to `DirectCallNode`. |
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109 * Renamed `TruffleRuntime#createCallNode` to `TruffleRuntime#createDirectCallNode`. |
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110 * Added `IndirectCallNode` for calls with a changing `CallTarget`. |
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111 * Added `TruffleRuntime#createIndirectCallNode` to create an `IndirectCallNode`. |
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112 * `DirectCallNode#inline` was renamed to `DirectCallNode#forceInlining()`. |
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113 * Removed deprecated `Node#adoptChild`. |
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114 |
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115 ## Version 0.2 |
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116 25-Mar-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.2) |
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117 ### Truffle |
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118 * New API `TruffleRuntime#createCallNode` to create call nodes and to give the runtime system control over its implementation. |
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119 * New API `RootNode#getCachedCallNodes` to get a weak set of `CallNode`s that have registered to call the `RootNode`. |
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120 * 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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121 * New API to inline a call-site into the call-graph. `CallNode#isInlinable`, `CallNode#inline`, `CallNode#isInlined`. |
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122 * New API for the runtime environment to register `CallTarget`s as caller to the `RootNode`. `CallNode#registerCallTarget`. |
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123 * Improved API for counting nodes in Truffle ASTs. `NodeUtil#countNodes` can be used with a `NodeFilter`. |
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124 * 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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125 * Removed old API for `NodeInfo#Kind` and `NodeInfo#kind`. As a replacement the new `NodeCost` API can be used. |
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126 * Changed `Node#replace` reason parameter type to `CharSequence` (to enable lazy string building) |
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127 * Deprecated `Node#adoptChild` and `Node#adoptChildren`, no longer needed in node constructor |
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128 * New `Node#insert` method for inserting new nodes into the tree (formerly `adoptChild`) |
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129 * New `Node#adoptChildren` helper method that adopts all (direct and indirect) children of a node |
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130 * New API `Node#atomic` for atomic tree operations |
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131 * Made `Node#replace` thread-safe |
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132 |
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133 |
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134 ## Version 0.1 |
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135 5-Feb-2014, [Repository Revision](http://hg.openjdk.java.net/graal/graal/shortlog/graal-0.1) |
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136 ### Truffle |
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137 * Initial version of a multi-language framework on top of Graal. |
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138 * Update of the [Truffle Inlining API](http://mail.openjdk.java.net/pipermail/graal-dev/2014-January/001516.html). |