57 lines
1.7 KiB
JavaScript
57 lines
1.7 KiB
JavaScript
|
// Copyright 2017 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.
|
||
|
|
|
||
|
|
load("test/mjsunit/wasm/wasm-constants.js");
|
||
|
|
load("test/mjsunit/wasm/wasm-module-builder.js");
|
||
|
|
|
||
|
|
(function AddTest() {
|
||
|
|
let builder = new WasmModuleBuilder();
|
||
|
|
|
||
|
|
builder.addFunction("main", kSig_i_v)
|
||
|
|
.addBody([
|
||
|
|
kExprBlock, kWasmStmt,
|
||
|
|
kExprI64Const, 0,
|
||
|
|
// 0x80 ... 0x10 is the LEB encoding of 0x100000000. This is chosen so
|
||
|
|
// that the 64-bit constant has a non-zero top half. In this bug, the
|
||
|
|
// top half was clobbering eax, leading to the function return 1 rather
|
||
|
|
// than 0.
|
||
|
|
kExprI64Const, 0x80, 0x80, 0x80, 0x80, 0x10,
|
||
|
|
kExprI64Add,
|
||
|
|
kExprI64Eqz,
|
||
|
|
kExprBrIf, 0,
|
||
|
|
kExprI32Const, 0,
|
||
|
|
kExprReturn,
|
||
|
|
kExprEnd,
|
||
|
|
kExprI32Const, 0
|
||
|
|
])
|
||
|
|
.exportFunc();
|
||
|
|
let module = builder.instantiate();
|
||
|
|
assertEquals(0, module.exports.main());
|
||
|
|
})();
|
||
|
|
|
||
|
|
(function SubTest() {
|
||
|
|
let builder = new WasmModuleBuilder();
|
||
|
|
|
||
|
|
builder.addFunction("main", kSig_i_v)
|
||
|
|
.addBody([
|
||
|
|
kExprBlock, kWasmStmt,
|
||
|
|
kExprI64Const, 0,
|
||
|
|
// 0x80 ... 0x10 is the LEB encoding of 0x100000000. This is chosen so
|
||
|
|
// that the 64-bit constant has a non-zero top half. In this bug, the
|
||
|
|
// top half was clobbering eax, leading to the function return 1 rather
|
||
|
|
// than 0.
|
||
|
|
kExprI64Const, 0x80, 0x80, 0x80, 0x80, 0x10,
|
||
|
|
kExprI64Sub,
|
||
|
|
kExprI64Eqz,
|
||
|
|
kExprBrIf, 0,
|
||
|
|
kExprI32Const, 0,
|
||
|
|
kExprReturn,
|
||
|
|
kExprEnd,
|
||
|
|
kExprI32Const, 0
|
||
|
|
])
|
||
|
|
.exportFunc();
|
||
|
|
let module = builder.instantiate();
|
||
|
|
assertEquals(0, module.exports.main());
|
||
|
|
})();
|