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
|
// Copyright 2018 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: --wasm-lazy-compilation
load('test/mjsunit/wasm/wasm-module-builder.js');
const builder = new WasmModuleBuilder();
builder.addMemory(16, 32);
builder.addFunction('grow', kSig_i_i).addBody([
kExprGetLocal, 0,
kExprMemoryGrow, 0,
]).exportFunc();
builder.addFunction('main', kSig_i_i).addBody([
...wasmI32Const(0x41),
kExprSetLocal, 0,
// Enter loop, such that values are spilled to the stack.
kExprLoop, kWasmStmt,
kExprEnd,
// Reload value. This must be loaded as 32 bit value.
kExprGetLocal, 0,
kExprI32LoadMem, 0, 0,
]).exportFunc();
const instance = builder.instantiate();
// Execute grow, such that the stack contains garbage data afterwards.
instance.exports.grow(1);
instance.exports.main();
|
