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// 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: --validate-asm --allow-natives-syntax
var stdlib = this;
let kMinHeapSize = 4096;
function assertValidAsm(func) {
assertTrue(%IsAsmWasmCode(func), "must be valid asm code");
}
function assertWasm(expected, func, ffi) {
print("Testing " + func.name + "...");
assertEquals(
expected, func(stdlib, ffi, new ArrayBuffer(kMinHeapSize)).caller());
assertValidAsm(func);
}
function TestInt32HeapAccess(stdlib, foreign, buffer) {
"use asm";
var m = new stdlib.Int32Array(buffer);
function caller() {
var i = 4;
m[0] = (i + 1) | 0;
m[i >> 2] = ((m[0]|0) + 1) | 0;
m[2] = ((m[i >> 2]|0) + 1) | 0;
return m[2] | 0;
}
return {caller: caller};
}
assertWasm(7, TestInt32HeapAccess);
function TestInt32HeapAccessExternal() {
var memory = new ArrayBuffer(kMinHeapSize);
var memory_int32 = new Int32Array(memory);
var module_decl = eval('(' + TestInt32HeapAccess.toString() + ')');
var module = module_decl(stdlib, null, memory);
assertValidAsm(module_decl);
assertEquals(7, module.caller());
assertEquals(7, memory_int32[2]);
}
TestInt32HeapAccessExternal();
function TestHeapAccessIntTypes() {
var types = [
[Int8Array, 'Int8Array', '>> 0'],
[Uint8Array, 'Uint8Array', '>> 0'],
[Int16Array, 'Int16Array', '>> 1'],
[Uint16Array, 'Uint16Array', '>> 1'],
[Int32Array, 'Int32Array', '>> 2'],
[Uint32Array, 'Uint32Array', '>> 2'],
];
for (var i = 0; i < types.length; i++) {
var code = TestInt32HeapAccess.toString();
code = code.replace('Int32Array', types[i][1]);
code = code.replace(/>> 2/g, types[i][2]);
var memory = new ArrayBuffer(kMinHeapSize);
var memory_view = new types[i][0](memory);
var module_decl = eval('(' + code + ')');
var module = module_decl(stdlib, null, memory);
assertValidAsm(module_decl);
assertEquals(7, module.caller());
assertEquals(7, memory_view[2]);
assertValidAsm(module_decl);
}
}
TestHeapAccessIntTypes();
function TestFloatHeapAccess(stdlib, foreign, buffer) {
"use asm";
var f32 = new stdlib.Float32Array(buffer);
var f64 = new stdlib.Float64Array(buffer);
var fround = stdlib.Math.fround;
function caller() {
var i = 8;
var j = 8;
var v = 6.0;
f64[2] = v + 1.0;
f64[i >> 3] = +f64[2] + 1.0;
f64[j >> 3] = +f64[j >> 3] + 1.0;
i = +f64[i >> 3] == 9.0;
return i|0;
}
return {caller: caller};
}
assertWasm(1, TestFloatHeapAccess);
function TestFloatHeapAccessExternal() {
var memory = new ArrayBuffer(kMinHeapSize);
var memory_float64 = new Float64Array(memory);
var module_decl = eval('(' + TestFloatHeapAccess.toString() + ')');
var module = module_decl(stdlib, null, memory);
assertValidAsm(module_decl);
assertEquals(1, module.caller());
assertEquals(9.0, memory_float64[1]);
}
TestFloatHeapAccessExternal();
(function() {
function TestByteHeapAccessCompat(stdlib, foreign, buffer) {
"use asm";
var HEAP8 = new stdlib.Uint8Array(buffer);
var HEAP32 = new stdlib.Int32Array(buffer);
function store(i, v) {
i = i | 0;
v = v | 0;
HEAP32[i >> 2] = v;
}
function storeb(i, v) {
i = i | 0;
v = v | 0;
HEAP8[i | 0] = v;
}
function load(i) {
i = i | 0;
return HEAP8[i] | 0;
}
function iload(i) {
i = i | 0;
return HEAP8[HEAP32[i >> 2] | 0] | 0;
}
return {load: load, iload: iload, store: store, storeb: storeb};
}
var memory = new ArrayBuffer(kMinHeapSize);
var module_decl = eval('(' + TestByteHeapAccessCompat.toString() + ')');
var m = module_decl(stdlib, null, memory);
assertValidAsm(module_decl);
m.store(0, 20);
m.store(4, 21);
m.store(8, 22);
m.storeb(20, 123);
m.storeb(21, 42);
m.storeb(22, 77);
assertEquals(123, m.load(20));
assertEquals(42, m.load(21));
assertEquals(77, m.load(22));
assertEquals(123, m.iload(0));
assertEquals(42, m.iload(4));
assertEquals(77, m.iload(8));
})();
function TestIntishAssignment(stdlib, foreign, heap) {
"use asm";
var HEAP32 = new stdlib.Int32Array(heap);
function func() {
var a = 1;
var b = 2;
HEAP32[0] = a + b;
return HEAP32[0] | 0;
}
return {caller: func};
}
assertWasm(3, TestIntishAssignment);
function TestFloatishAssignment(stdlib, foreign, heap) {
"use asm";
var HEAPF32 = new stdlib.Float32Array(heap);
var fround = stdlib.Math.fround;
function func() {
var a = fround(1.0);
var b = fround(2.0);
HEAPF32[0] = a + b;
return +HEAPF32[0];
}
return {caller: func};
}
assertWasm(3, TestFloatishAssignment);
function TestDoubleToFloatAssignment(stdlib, foreign, heap) {
"use asm";
var HEAPF32 = new stdlib.Float32Array(heap);
var fround = stdlib.Math.fround;
function func() {
var a = 1.23;
HEAPF32[0] = a;
return +HEAPF32[0];
}
return {caller: func};
}
assertWasm(Math.fround(1.23), TestDoubleToFloatAssignment);
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