1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-wasm --expose-gc --allow-natives-syntax
load("test/mjsunit/wasm/wasm-module-builder.js");
var assertTraps = function(messageId, code) {
assertThrows(code, WebAssembly.RuntimeError, kTrapMsgs[messageId]);
}
function makeBinop(opcode) {
var builder = new WasmModuleBuilder();
builder.addFunction("main", kSig_i_ii)
.addBody([
kExprLocalGet, 0, // --
kExprLocalGet, 1, // --
opcode, // --
])
.exportFunc();
return builder.instantiate().exports.main;
}
var divs = makeBinop(kExprI32DivS);
var divu = makeBinop(kExprI32DivU);
assertEquals( 33, divs( 333, 10));
assertEquals(-33, divs(-336, 10));
assertEquals( 44, divu( 445, 10));
assertEquals(429496685, divu(-446, 10));
assertTraps(kTrapDivByZero, "divs(100, 0);");
assertTraps(kTrapDivByZero, "divs(-1009, 0);");
assertTraps(kTrapDivByZero, "divu(200, 0);");
assertTraps(kTrapDivByZero, "divu(-2009, 0);");
assertTraps(kTrapDivUnrepresentable, "divs(0x80000000, -1)");
assertEquals(0, divu(0x80000000, -1));
var rems = makeBinop(kExprI32RemS);
var remu = makeBinop(kExprI32RemU);
assertEquals( 3, rems( 333, 10));
assertEquals(-6, rems(-336, 10));
assertEquals( 5, remu( 445, 10));
assertEquals( 3, remu(-443, 10));
assertTraps(kTrapRemByZero, "rems(100, 0);");
assertTraps(kTrapRemByZero, "rems(-1009, 0);");
assertTraps(kTrapRemByZero, "remu(200, 0);");
assertTraps(kTrapRemByZero, "remu(-2009, 0);");
assertEquals(-2147483648, remu(0x80000000, -1));
assertEquals(0, rems(0x80000000, -1));
|
