The Tor Browser: js/src/jit-test/tests/asm.js/testZOOB.js@6474c204b198 (annotated)

js/src/jit-test/tests/asm.js/testZOOB.js@6474c204b198 (annotated)

js/src/jit-test/tests/asm.js/testZOOB.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 load(libdir + "asm.js");
 setIonCheckGraphCoherency(false);
 setCachingEnabled(false);
 // constants
 var buf = new ArrayBuffer(4096);
 // An unshifted literal constant byte index in the range 0 to 2^31-1 inclusive should give a link failure.
 assertAsmLinkFail(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0x7fffffff]|0 } return f'), this, null, buf);
 assertAsmLinkFail(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x1fffffff]|0 } return f'), this, null, buf);
 // An unshifted literal constant byte index outside the range 0 to 2^31-1 inclusive should cause an error compiling.
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x20000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x3fffffff]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x40000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x7fffffff]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x80000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x8fffffff]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0xffffffff]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x100000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0x80000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0xffffffff]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0x100000000]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int16Array(b); function f() {return arr[-1]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[-2]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[10-12]|0 } return f');
 // An intish shifted literal constant index should not fail to compile or link.
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0x3fffffff>>0]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x3fffffff>>2]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0xffffffff>>0]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0xffffffff>>2]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[-1>>0]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[-1>>2]|0 } return f'), this, null, buf)(), 0);
 // Unsigned (intish) folded constant index.
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0xffffffff>>>0]|0 } return f'), this, null, buf)(), 0);
 assertEq(asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {arr[0] = 1; return arr[(0xffffffff+1)>>>0]|0 } return f'), this, null, buf)(), 1);
 // A non-intish shifted literal constant index should cause an error compiling.
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b); function f() {return arr[0x100000000>>0]|0 } return f');
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int32Array(b); function f() {return arr[0x100000000>>2]|0 } return f');
 // Folded non-intish constant expressions should cause an error compiling.
 assertAsmTypeFail('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.Int8Array(b);  function f() {return arr[0xffffffff+1]|0 } return f');
 function testInt(ctor, shift, scale, disp) {
     var ab = new ArrayBuffer(4096);
     var arr = new ctor(ab);
     for (var i = 0; i < arr.length; i++)
         arr[i] = i;
     var f = asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.' + ctor.name + '(b); function f(i) {i=i|0; return arr[((i<<' + scale + ')+' + disp + ')>>' + shift + ']|0 } return f'), this, null, ab);
     for (var i of [0,1,2,3,4,1023,1024,1025,4095,4096,4097])
         assertEq(f(i), arr[((i<<scale)+disp)>>shift]|0);
     for (var i of [-Math.pow(2,28),Math.pow(2,28),-Math.pow(2,29),Math.pow(2,29),-Math.pow(2,30),Math.pow(2,30),-Math.pow(2,31),Math.pow(2,31),-Math.pow(2,32),Math.pow(2,32)]) {
         for (var j of [-8,-4,-1,0,1,4,8])
             assertEq(f(i+j), arr[(((i+j)<<scale)+disp)>>shift]|0);
     }
     var f = asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.' + ctor.name + '(b); function f(i,j) {i=i|0;j=j|0; arr[((i<<' + scale + ')+' + disp + ')>>' + shift + '] = j } return f'), this, null, ab);
     for (var i of [0,1,2,3,4,1023,1024,1025,4095,4096,4097]) {
         var index = ((i<<scale)+disp)>>shift;
         var v = arr[index]|0;
         arr[index] = 0;
         f(i, v);
         assertEq(arr[index]|0, v);
     }
     for (var i of [-Math.pow(2,31), Math.pow(2,31)-1, Math.pow(2,32)]) {
         for (var j of [-8,-4,-1,0,1,4,8]) {
             var index = (((i+j)<<scale)+disp)>>shift;
             var v = arr[index]|0;
             arr[index] = 0;
             f(i+j, v);
             assertEq(arr[index]|0, v);
         }
     }
 }
 function testFloat(ctor, shift, scale, disp, coercion) {
     var ab = new ArrayBuffer(4096);
     var arr = new ctor(ab);
     for (var i = 0; i < arr.length; i++)
         arr[i] = i;
     var f = asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.' + ctor.name + '(b); var toF = glob.Math.fround; function f(i) {i=i|0; return ' + coercion + '(arr[((i<<' + scale + ')+' + disp + ')>>' + shift + ']) } return f'), this, null, ab);
     for (var i of [0,1,2,3,4,1023,1024,1025,4095,4096,4097])
         assertEq(f(i), +arr[((i<<scale)+disp)>>shift]);
     for (var i of [-Math.pow(2,31), Math.pow(2,31)-1, Math.pow(2,32)]) {
         for (var j of [-8,-4,-1,0,1,4,8])
             assertEq(f(i+j), +arr[(((i+j)<<scale)+disp)>>shift]);
     }
     var f = asmLink(asmCompile('glob', 'imp', 'b', USE_ASM + 'var arr=new glob.' + ctor.name + '(b); var toF = glob.Math.fround; function f(i,j) {i=i|0;j=+j; arr[((i<<' + scale + ')+' + disp + ')>>' + shift + '] = j } return f'), this, null, ab);
     for (var i of [0,1,2,3,4,1023,1024,1025,4095,4096,4097]) {
         var index = ((i<<scale)+disp)>>shift;
         var v = +arr[index];
         arr[index] = 0;
         f(i, v);
         assertEq(+arr[index], v);
     }
     for (var i of [-Math.pow(2,31), Math.pow(2,31)-1, Math.pow(2,32)]) {
         for (var j of [-8,-4,-1,0,1,4,8]) {
             var index = (((i+j)<<scale)+disp)>>shift;
             var v = +arr[index];
             arr[index] = 0;
             f(i+j, v);
             assertEq(+arr[index], v);
         }
     }
 }
 function testFloat32(ctor, shift, scale, disp) {
     testFloat(ctor, shift, scale, disp, "toF");
 }
 function testFloat64(ctor, shift, scale, disp) {
     testFloat(ctor, shift, scale, disp, "+");
 }
 function test(tester, ctor, shift) {
     for (scale of [0,1,2,3]) {
         for (disp of [0,1,8,Math.pow(2,31)-1,Math.pow(2,31),Math.pow(2,32)-1])
             tester(ctor, shift, scale, disp);
     }
 }
 test(testInt, Int8Array, 0);
 test(testInt, Uint8Array, 0);
 test(testInt, Int16Array, 1);
 test(testInt, Uint16Array, 1);
 test(testInt, Int32Array, 2);
 test(testInt, Uint32Array, 2);
 test(testFloat32, Float32Array, 2);
 test(testFloat64, Float64Array, 3);