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Add skeleton of SSAKernel function compiler

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R=het@google.com

Review URL: https://codereview.chromium.org/2269783002 .
This commit is contained in:
Sigmund Cherem 2016-08-22 16:30:41 -07:00
parent b49de12f6c
commit 57f26aeb60
4 changed files with 84 additions and 35 deletions
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6
pkg/compiler/lib/src/js_backend/backend.dart
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@ -39,7 +39,7 @@ import '../js/rewrite_async.dart';
import '../js_emitter/js_emitter.dart' show CodeEmitterTask;
import '../library_loader.dart' show LibraryLoader, LoadedLibraries;
import '../native/native.dart' as native;
import '../ssa/builder.dart' show SsaFunctionCompiler;
import '../ssa/ssa.dart' show SsaFunctionCompiler;
import '../ssa/nodes.dart' show HInstruction;
import '../tree/tree.dart';
import '../types/types.dart';
@ -626,8 +626,8 @@ class JavaScriptBackend extends Backend {
constantCompilerTask = new JavaScriptConstantTask(compiler);
impactTransformer = new JavaScriptImpactTransformer(this);
patchResolverTask = new PatchResolverTask(compiler);
// TODO(sigmund): pass along the kernel flag.
functionCompiler = new SsaFunctionCompiler(this, sourceInformationStrategy);
functionCompiler = new SsaFunctionCompiler(
this, sourceInformationStrategy, useKernel);
serialization = new JavaScriptBackendSerialization(this);
}

31
pkg/compiler/lib/src/ssa/builder.dart
View file

@ -43,37 +43,6 @@ import 'nodes.dart';
import 'optimize.dart';
import 'types.dart';
class SsaFunctionCompiler implements FunctionCompiler {
final SsaCodeGeneratorTask generator;
final SsaBuilderTask builder;
final SsaOptimizerTask optimizer;
final JavaScriptBackend backend;
SsaFunctionCompiler(JavaScriptBackend backend,
SourceInformationStrategy sourceInformationFactory)
: generator = new SsaCodeGeneratorTask(backend, sourceInformationFactory),
builder = new SsaBuilderTask(backend, sourceInformationFactory),
optimizer = new SsaOptimizerTask(backend),
backend = backend;
/// Generates JavaScript code for `work.element`.
/// Using the ssa builder, optimizer and codegenerator.
js.Fun compile(CodegenWorkItem work) {
HGraph graph = builder.build(work);
optimizer.optimize(work, graph);
Element element = work.element;
js.Expression result = generator.generateCode(work, graph);
if (element is FunctionElement) {
result = backend.rewriteAsync(element, result);
}
return result;
}
Iterable<CompilerTask> get tasks {
return <CompilerTask>[builder, optimizer, generator];
}
}
/// A synthetic local variable only used with the SSA graph.
///
/// For instance used for holding return value of function or the exception of a

28
pkg/compiler/lib/src/ssa/builder_kernel.dart Normal file
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@ -0,0 +1,28 @@
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import '../common/codegen.dart' show CodegenWorkItem;
import '../common/tasks.dart' show CompilerTask;
import '../io/source_information.dart';
import '../js_backend/backend.dart' show JavaScriptBackend, FunctionCompiler;
import '../elements/elements.dart';
import 'nodes.dart';
class SsaKernelBuilderTask extends CompilerTask {
final JavaScriptBackend backend;
final SourceInformationStrategy sourceInformationFactory;
String get name => 'SSA kernel builder';
SsaKernelBuilderTask(JavaScriptBackend backend, this.sourceInformationFactory)
: super(backend.compiler.measurer);
HGraph build(CodegenWorkItem work) {
return measure(() {
Element element = work.element.implementation;
throw "unimplemented";
});
}
}

54
pkg/compiler/lib/src/ssa/ssa.dart
View file

@ -4,4 +4,56 @@
library ssa;
export 'builder.dart' show SsaFunctionCompiler;
import '../common/codegen.dart' show CodegenWorkItem;
import '../common/tasks.dart' show CompilerTask;
import '../elements/elements.dart' show Element, FunctionElement;
import '../io/source_information.dart';
import '../js/js.dart' as js;
import '../js_backend/backend.dart' show JavaScriptBackend, FunctionCompiler;
import 'builder.dart';
import 'builder_kernel.dart';
import 'codegen.dart';
import 'nodes.dart';
import 'optimize.dart';
import 'types.dart';
class SsaFunctionCompiler implements FunctionCompiler {
final SsaCodeGeneratorTask generator;
final SsaBuilderTask builder;
final SsaKernelBuilderTask builderKernel;
final SsaOptimizerTask optimizer;
final JavaScriptBackend backend;
final bool useKernel;
SsaFunctionCompiler(JavaScriptBackend backend,
SourceInformationStrategy sourceInformationFactory, this.useKernel)
: generator = new SsaCodeGeneratorTask(backend, sourceInformationFactory),
builder = new SsaBuilderTask(backend, sourceInformationFactory),
builderKernel =
new SsaKernelBuilderTask(backend, sourceInformationFactory),
optimizer = new SsaOptimizerTask(backend),
backend = backend;
/// Generates JavaScript code for `work.element`.
/// Using the ssa builder, optimizer and codegenerator.
js.Fun compile(CodegenWorkItem work) {
HGraph graph = useKernel ? builderKernel.build(work) : builder.build(work);
optimizer.optimize(work, graph);
Element element = work.element;
js.Expression result = generator.generateCode(work, graph);
if (element is FunctionElement) {
// TODO(sigmund): replace by kernel transformer when `useKernel` is true.
result = backend.rewriteAsync(element, result);
}
return result;
}
Iterable<CompilerTask> get tasks {
return <CompilerTask>[
useKernel ? builderKernel : builder,
optimizer,
generator
];
}
}