06241221a6
R=binji@chromium.org,jfb@chromium.org BUG= Review URL: https://codereview.chromium.org/1740373002 Cr-Commit-Position: refs/heads/master@{#34346}
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-wasm --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 = kHeaderSize + 6 + 11 + kBodySize + 1;
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var data = bytesWithHeader(
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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 = _WASMEXP_.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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