v8/test/mjsunit/wasm/jit-single-function.js
ritesht de33e4bad2 [wasm] Adding feature to JIT a wasm function at runtime and hook up the compiled code into the indirect function table
The runtime JIT function is passed in the function table to hook up the compiled code and the starting address of the memory to locate the bytes to be compiled.

BUG=5044

Review-Url: https://codereview.chromium.org/2137993003
Cr-Commit-Position: refs/heads/master@{#37735}
2016-07-14 01:13:50 +00:00

80 lines
2.6 KiB
JavaScript

// 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
// Flags: --wasm-jit-prototype
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
var module = (function () {
var builder = new WasmModuleBuilder();
var kSig_i_iiiii =
makeSig([kAstI32, kAstI32, kAstI32, kAstI32, kAstI32], [kAstI32]);
var sig_index2 = builder.addType(kSig_i_ii);
var sig_index5 = builder.addType(kSig_i_iiiii);
builder.addMemory(1, 1, true);
var wasm_bytes_sub = [
0,
kExprGetLocal, 0,
kExprGetLocal, 1,
kExprI32Sub
];
builder.addDataSegment(0, wasm_bytes_sub, false);
var wasm_bytes_mul = [
0,
kExprGetLocal, 0,
kExprGetLocal, 1,
kExprI32Mul
];
builder.addDataSegment(6, wasm_bytes_mul, false);
builder.addPadFunctionTable(10);
builder.addImport("add", sig_index2);
builder.addFunction("add", sig_index2)
.addBody([
kExprGetLocal, 0, kExprGetLocal, 1, kExprCallImport, kArity2, 0
]);
builder.addFunction("main", sig_index5)
.addBody([
kExprGetLocal, 0,
kExprGetLocal, 1,
kExprGetLocal, 2,
kExprJITSingleFunction, sig_index2,
kExprGetLocal, 2,
kExprGetLocal, 3,
kExprGetLocal, 4,
kExprCallIndirect, kArity2, sig_index2
])
.exportFunc()
builder.appendToTable([0, 1]);
return builder.instantiate({add: function(a, b) { return a + b | 0; }});
})();
// Check that the module exists
assertFalse(module === undefined);
assertFalse(module === null);
assertFalse(module === 0);
assertEquals("object", typeof module.exports);
assertEquals("function", typeof module.exports.main);
// Check that the bytes referred to lie in the bounds of the memory buffer
assertTraps(kTrapMemOutOfBounds, "module.exports.main(0, 100000, 3, 55, 99)");
assertTraps(kTrapMemOutOfBounds, "module.exports.main(65536, 1, 3, 55, 99)");
// Check that the index lies in the bounds of the table size
assertTraps(kTrapInvalidIndex, "module.exports.main(0, 6, 10, 55, 99)");
assertTraps(kTrapInvalidIndex, "module.exports.main(0, 6, -1, 55, 99)");
// args: base offset, size of func_bytes, index, param1, param2
assertEquals(-444, module.exports.main(0, 6, 3, 555, 999)); // JIT sub function
assertEquals(13, module.exports.main(0, 6, 9, 45, 32)); // JIT sub function
assertEquals(187, module.exports.main(6, 6, 6, 17, 11)); // JIT mul function
assertEquals(30525, module.exports.main(6, 6, 9, 555, 55)); // JIT mul function