asm-wasm-expr.js 3.65 KB
Newer Older
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
// Copyright 2016 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 selectedTest = undefined;
//selectedTest = 16;

function skip(a) {
  return selectedTest != undefined ? a != selectedTest : false;
}

const assign_in_stmt = [
  "if (E) =",
  "if (=) E",
  "if (E) E; else =",
  "for (=; E; S) S",
  "for (E; =; S) S",
  "for (E; E; =) E",
  "for (E; E; E) =",
  "do { = } while(E)",
  "do { S } while (=)",
];
const assign_in_expr = [
26
  "i32_func(=) | 0",
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 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132
  "(=) ? E : E",
  "E ? (=) : E",
  "E ? E : (=)",
  "(=) + E",
  "E + (=)",
  "imul(=, E)",
  "imul(E, =)",
  "~(=)",
  "(=) | 0",
  "(=), E",
  "E, (=)",
  "E, E, (=)",
  "E, (=), E",
  "(=), E, E",
];

const stdlib = {
  Math: Math,
  Int8Array: Int8Array,
  Int16Array: Int16Array,
  Int32Array: Int32Array,
  Uint8Array: Uint8Array,
  Uint16Array: Uint16Array,
  Uint32Array: Uint32Array,
  Float32Array: Float32Array,
  Float64Array: Float64Array,
};

const buffer = new ArrayBuffer(65536);

// Template for a module.
function MODULE_TEMPLATE(stdlib, foreign, buffer) {
  "use asm";
  var imul = stdlib.Math.imul;
  var fround = stdlib.Math.fround;
  var M = new stdlib.Int32Array(buffer);
  var G = 0;

  function void_func() {}
  function i32_func(a) {
    a = a | 0;
    return a | 0;
  }

  FUNC_DECL
  return {main: main};
}

// Template for main function.
{
  function main(i32, f32, f64) {
    i32 = i32 | 0;
    f32 = fround(f32);
    f64 = +f64;
    FUNC_BODY
  }
}

function RunAsmJsTest(asmfunc, expect) {
  var asm_source = asmfunc.toString();
  var nonasm_source = asm_source.replace(new RegExp("use asm"), "");

  print("Testing " + asmfunc.name + " (js)...");
  var js_module = eval("(" + nonasm_source + ")")(stdlib, {}, buffer);
  expect(js_module);

  print("Testing " + asmfunc.name + " (asm.js)...");
  var asm_module = asmfunc(stdlib, {}, buffer);
  assertTrue(%IsAsmWasmCode(asmfunc));
  expect(asm_module);
}

var test = 0;

function DoTheTests(expr, assign, stmt) {
  // ==== Expression assignment tests ========================================
  for (let e of assign_in_expr) {
    if (skip(++test)) continue;
    var orig = e;
    e = e.replace(/=/g, assign);
    e = e.replace(/E/g, expr);
    e = e.replace(/S/g, stmt);
    var str = main.toString().replace("FUNC_BODY", "return (" + e + ") | 0;");
    var asm_source = MODULE_TEMPLATE.toString().replace("FUNC_DECL", str);
    doTest(asm_source, "(" + test + ") " + e);
  }

  // ==== Statement assignment tests =========================================
  for (let e of assign_in_stmt) {
    if (skip(++test)) continue;
    var orig = e;
    e = e.replace(/=/g, assign);
    e = e.replace(/E/g, expr);
    e = e.replace(/S/g, stmt);
    var str = main.toString().replace("FUNC_BODY",  e + "; return 0;");
    var asm_source = MODULE_TEMPLATE.toString().replace("FUNC_DECL", str);
    doTest(asm_source, "(" + test + ") " + e);
  }

  function doTest(asm_source, orig) {
    var nonasm_source = asm_source.replace(new RegExp("use asm"), "");
    print("Testing JS:    " + orig);
    var js_module = eval("(" + nonasm_source + ")")(stdlib, {}, buffer);
    expect(js_module);

    print("Testing ASMJS: " + orig);
133
    var asmfunc = eval("(" + asm_source + ")");
134 135 136 137 138 139 140 141 142 143 144 145
    var asm_module = asmfunc(stdlib, {}, buffer);
    assertTrue(%IsAsmWasmCode(asmfunc));
    expect(asm_module);
  }

  function expect(module) { module.main(0, 0, 0); print("  ok"); return true; }
}

DoTheTests("(i32 | 0)", "i32 = 0", "void_func()");
DoTheTests("G", "G = 0", "void_func()");
DoTheTests("G", "G = 0", "G");
DoTheTests("(M[0] | 0)", "M[0] = 0", "void_func()");