529c066432
Allow for a third compilation strategy that compiles baseline code lazily but initiates top tier compilation immediately. The strategy aims at reducing startup time. Bug: v8:9003 Change-Id: Ifd2060b25386c5221a45f6038c3849afeb956e69 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1571620 Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Clemens Hammacher <clemensh@chromium.org> Commit-Queue: Frederik Gossen <frgossen@google.com> Cr-Commit-Position: refs/heads/master@{#61077}
68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be found
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// in the LICENSE file.
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// Flags: --experimental-wasm-compilation-hints
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load('test/mjsunit/wasm/wasm-module-builder.js');
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(function testCompileWithBadLazyHint() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addFunction('id', kSig_i_i)
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.addBody([kExprGetLocal, 0])
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.setCompilationHint(kCompilationHintStrategyLazy,
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kCompilationHintTierOptimized,
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kCompilationHintTierBaseline)
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.exportFunc();
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assertThrows(() => builder.toModule(),
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WebAssembly.CompileError,
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"WebAssembly.Module(): Invalid compilation hint 0x2d " +
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"(forbidden downgrade) @+49");
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})();
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(function testCompileWithBadLazyFunctionBody() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addFunction('id', kSig_i_l)
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.addBody([kExprGetLocal, 0])
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.setCompilationHint(kCompilationHintStrategyLazy,
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kCompilationHintTierDefault,
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kCompilationHintTierDefault)
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.exportFunc();
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assertThrows(() => builder.toModule(),
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WebAssembly.CompileError,
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"WebAssembly.Module(): Compiling function #0:\"id\" failed: type error " +
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"in merge[0] (expected i32, got i64) @+56");
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})();
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(function testCompileEmptyModule() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.toModule();
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})();
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(function testCompileLazyModule() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addFunction('id', kSig_i_i)
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.addBody([kExprGetLocal, 0])
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.setCompilationHint(kCompilationHintStrategyLazy,
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kCompilationHintTierDefault,
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kCompilationHintTierDefault)
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.exportFunc();
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assertEquals(42, builder.instantiate().exports.id(42));
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})();
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(function testCompileLazyBaselineEagerTopTierModule() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addFunction('id', kSig_i_i)
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.addBody([kExprGetLocal, 0])
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.setCompilationHint(kCompilationHintStrategyLazyBaselineEagerTopTier,
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kCompilationHintTierDefault,
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kCompilationHintTierDefault)
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.exportFunc();
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assertEquals(42, builder.instantiate().exports.id(42));
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})();
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