4c5b3609fd
As discussed in person, this adds the code from v8-native-prototype into
V8 proper, guarded by GYP flags that do not build the code by default.
Passing wasm=on to 'make' or setting v8_wasm as a GYP flag activates
building of this code.
An additional header file is added to and exported from the compiler
directory, src/compiler/wasm-compiler.h. This exposes a limited interface
with opaque Node and Graph types to the decoder to build TF graphs, as
well as functions to compile WASM graphs.
The mjsunit tests added are blacklisted because they fail without the
WASM object exposed to JS, which is also disabled by the build config
option.
This corresponds closely to 5981e06ebc, with some formatting fixes and moving some files into src/compiler.
R=mstarzinger@chromium.org, bradnelson@chromium.org
BUG=
Review URL: https://codereview.chromium.org/1504713014
Cr-Commit-Position: refs/heads/master@{#32794}
98 lines
2.4 KiB
JavaScript
98 lines
2.4 KiB
JavaScript
// Copyright 2015 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
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// found in the LICENSE file.
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// Flags: --expose-gc --allow-natives-syntax
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load("test/mjsunit/wasm/wasm-constants.js");
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function assertTraps(code, msg) {
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var threwException = true;
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try {
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if (typeof code === 'function') {
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code();
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} else {
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eval(code);
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}
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threwException = false;
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} catch (e) {
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if (typeof type_opt === 'function') {
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assertInstanceof(e, type_opt);
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}
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if (arguments.length >= 3) {
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assertEquals(e.type, cause_opt);
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}
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// Success.
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return;
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}
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throw new MjsUnitAssertionError("Did not throw exception");
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}
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function makeDivRem(opcode) {
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var kBodySize = 5;
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var kNameMainOffset = 6 + 11 + kBodySize + 1;
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var data = bytes(
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// signatures
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kDeclSignatures, 1,
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2, kAstI32, kAstI32, kAstI32, // (int,int) -> int
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// -- main function
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kDeclFunctions, 1,
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kDeclFunctionName | kDeclFunctionExport,
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0, 0,
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kNameMainOffset, 0, 0, 0, // name offset
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kBodySize, 0,
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// main body
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opcode, // --
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kExprGetLocal, 0, // --
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kExprGetLocal, 1, // --
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// names
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kDeclEnd,
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'm', 'a', 'i', 'n', 0 // --
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);
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var module = WASM.instantiateModule(data);
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assertEquals("function", typeof module.main);
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return module.main;
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}
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var divs = makeDivRem(kExprI32DivS);
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var divu = makeDivRem(kExprI32DivU);
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assertEquals( 33, divs( 333, 10));
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assertEquals(-33, divs(-336, 10));
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assertEquals( 44, divu( 445, 10));
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assertEquals(429496685, divu(-446, 10));
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assertTraps(kTrapDivByZero, "divs(100, 0);");
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assertTraps(kTrapDivByZero, "divs(-1009, 0);");
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assertTraps(kTrapDivByZero, "divu(200, 0);");
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assertTraps(kTrapDivByZero, "divu(-2009, 0);");
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assertTraps(kTrapDivUnrepresentable, "divs(0x80000000, -1)");
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assertEquals(0, divu(0x80000000, -1));
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var rems = makeDivRem(kExprI32RemS);
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var remu = makeDivRem(kExprI32RemU);
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assertEquals( 3, rems( 333, 10));
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assertEquals(-6, rems(-336, 10));
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assertEquals( 5, remu( 445, 10));
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assertEquals( 3, remu(-443, 10));
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assertTraps(kTrapRemByZero, "rems(100, 0);");
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assertTraps(kTrapRemByZero, "rems(-1009, 0);");
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assertTraps(kTrapRemByZero, "remu(200, 0);");
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assertTraps(kTrapRemByZero, "remu(-2009, 0);");
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assertEquals(-2147483648, remu(0x80000000, -1));
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assertEquals(0, rems(0x80000000, -1));
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