The Tor Browser / file comparison
comparison: js/src/jit-test/tests/asm.js/testExpressions.js
js/src/jit-test/tests/asm.js/testExpressions.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:69cba00a118a |
|---|---|
| 1 load(libdir + "asm.js"); | |
| 2 | |
| 3 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i+j)|0 } return f"); | |
| 4 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i+j)|0 } return f"); | |
| 5 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i-j)|0 } return f"); | |
| 6 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i-j)|0 } return f"); | |
| 7 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i*j)|0 } return f"); | |
| 8 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i*j)|0 } return f"); | |
| 9 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0; return (i*j)|0 } return f"); | |
| 10 assertAsmTypeFail(USE_ASM + "function f() { var i=0; return (i*1048576)|0 } return f"); | |
| 11 assertAsmTypeFail(USE_ASM + "function f() { var i=0; return (i*-1048576)|0 } return f"); | |
| 12 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0; return (i + (j*4))|0 } return f"); | |
| 13 assertAsmTypeFail(USE_ASM + "function f() { var two30 = 1073741824; return (((two30 * 524288 * 16) + 1) & 1)|0 } return f"); | |
| 14 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i/j)|0 } return f"); | |
| 15 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i/j)|0 } return f"); | |
| 16 assertAsmTypeFail(USE_ASM + "function f() { var i=1,j=1; return (i/j)|0 } return f"); | |
| 17 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i%j)|0 } return f"); | |
| 18 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i%j)|0 } return f"); | |
| 19 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0,j=0; return (i<j)|0 } return f"); | |
| 20 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0.0; return (i<j)|0 } return f"); | |
| 21 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0; return (i<j)|0 } return f"); | |
| 22 assertAsmTypeFail(USE_ASM + "function f() { var i=0.0; return (-i)|0 } return f"); | |
| 23 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0; return (-(i+j))|0 } return f"); | |
| 24 | |
| 25 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0,k=0; k = (i|0)/(k|0) } return f"); | |
| 26 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0,k=0; k = (i>>>0)/(k>>>0) } return f"); | |
| 27 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0,k=0; k = (i|0)%(k|0) } return f"); | |
| 28 assertAsmTypeFail(USE_ASM + "function f() { var i=0,j=0,k=0; k = (i>>>0)%(k>>>0) } return f"); | |
| 29 | |
| 30 const UINT32_MAX = Math.pow(2,32)-1; | |
| 31 const INT32_MIN = -Math.pow(2,31); | |
| 32 const INT32_MAX = Math.pow(2,31)-1; | |
| 33 | |
| 34 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return (i*2)|0 } return f")); | |
| 35 assertEq(f(0), 0); | |
| 36 assertEq(f(INT32_MIN), (2*INT32_MIN)|0); | |
| 37 assertEq(f(INT32_MAX), (2*INT32_MAX)|0); | |
| 38 | |
| 39 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return (2*i)|0 } return f")); | |
| 40 assertEq(f(0), 0); | |
| 41 assertEq(f(INT32_MIN), (2*INT32_MIN)|0); | |
| 42 assertEq(f(INT32_MAX), (2*INT32_MAX)|0); | |
| 43 | |
| 44 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return (i*1048575)|0 } return f")); | |
| 45 assertEq(f(0), 0); | |
| 46 assertEq(f(2), (1048575*2)|0); | |
| 47 assertEq(f(-1), (1048575*-1)|0); | |
| 48 assertEq(f(INT32_MIN), (1048575*INT32_MIN)|0); | |
| 49 assertEq(f(INT32_MAX), (1048575*INT32_MAX)|0); | |
| 50 | |
| 51 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return (1048575*i)|0 } return f")); | |
| 52 assertEq(f(0), 0); | |
| 53 assertEq(f(2), (1048575*2)|0); | |
| 54 assertEq(f(-1), (1048575*-1)|0); | |
| 55 assertEq(f(INT32_MIN), (1048575*INT32_MIN)|0); | |
| 56 assertEq(f(INT32_MAX), (1048575*INT32_MAX)|0); | |
| 57 | |
| 58 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=+i; var j=0; j=~~i; return j|0 } return f")); | |
| 59 assertEq(f(0), 0); | |
| 60 assertEq(f(3.5), 3); | |
| 61 assertEq(f(-3.5), -3); | |
| 62 assertEq(f(INT32_MAX), INT32_MAX); | |
| 63 assertEq(f(INT32_MIN), INT32_MIN); | |
| 64 assertEq(f(UINT32_MAX), -1); | |
| 65 | |
| 66 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; var j=0.0; j=+~~i; return +j } return f")); | |
| 67 assertEq(f(0), 0); | |
| 68 assertEq(f(INT32_MAX), INT32_MAX); | |
| 69 assertEq(f(INT32_MIN), INT32_MIN); | |
| 70 | |
| 71 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; var j=0.1; j=+(i>>>0); return +j } return f")); | |
| 72 assertEq(f(0), 0); | |
| 73 assertEq(f(INT32_MAX), INT32_MAX); | |
| 74 assertEq(f(UINT32_MAX), UINT32_MAX); | |
| 75 | |
| 76 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return (-i)|0 } return f")); | |
| 77 assertEq(f(0), 0); | |
| 78 assertEq(f(-0), 0); | |
| 79 assertEq(f(1), -1); | |
| 80 assertEq(f(INT32_MAX), INT32_MIN+1); | |
| 81 assertEq(f(INT32_MIN), INT32_MIN); | |
| 82 | |
| 83 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=+i; return +(-i) } return f")); | |
| 84 assertEq(f(0), -0); | |
| 85 assertEq(f(-0), 0); | |
| 86 assertEq(f(-1), 1); | |
| 87 assertEq(f(1), -1); | |
| 88 assertEq(f(Math.pow(2,50)), -Math.pow(2,50)); | |
| 89 assertEq(f(1.54e20), -1.54e20); | |
| 90 | |
| 91 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; return ((i|0) < (j|0))|0 } return f")); | |
| 92 assertEq(f(0, 1), 1); | |
| 93 assertEq(f(1, 0), 0); | |
| 94 assertEq(f(1, 1), 0); | |
| 95 assertEq(f(INT32_MIN, INT32_MAX), 1); | |
| 96 assertEq(f(INT32_MAX, INT32_MIN), 0); | |
| 97 assertEq(f(0, INT32_MAX), 1); | |
| 98 assertEq(f(INT32_MAX, 0), 0); | |
| 99 assertEq(f(INT32_MIN, 0), 1); | |
| 100 assertEq(f(0, INT32_MIN), 0); | |
| 101 assertEq(f(UINT32_MAX, 0), 1); | |
| 102 assertEq(f(0, UINT32_MAX), 0); | |
| 103 | |
| 104 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; return ((i>>>0) < (j>>>0))|0 } return f")); | |
| 105 assertEq(f(0, 1), 1); | |
| 106 assertEq(f(1, 0), 0); | |
| 107 assertEq(f(1, 1), 0); | |
| 108 assertEq(f(INT32_MIN, INT32_MAX), 0); | |
| 109 assertEq(f(INT32_MAX, INT32_MIN), 1); | |
| 110 assertEq(f(0, INT32_MAX), 1); | |
| 111 assertEq(f(INT32_MAX, 0), 0); | |
| 112 assertEq(f(INT32_MIN, 0), 0); | |
| 113 assertEq(f(0, INT32_MIN), 1); | |
| 114 assertEq(f(UINT32_MAX, 0), 0); | |
| 115 assertEq(f(0, UINT32_MAX), 1); | |
| 116 | |
| 117 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)==(j|0); return k|0 } return f"))(1,2), 0); | |
| 118 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)!=(j|0); return k|0 } return f"))(1,2), 1); | |
| 119 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)<(j|0); return k|0 } return f"))(1,2), 1); | |
| 120 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)>(j|0); return k|0 } return f"))(1,2), 0); | |
| 121 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)<=(j|0); return k|0 } return f"))(1,2), 1); | |
| 122 assertEq(asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k=0; k=(i|0)>=(j|0); return k|0 } return f"))(1,2), 0); | |
| 123 | |
| 124 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; return ((i|0)/(j|0))|0 } return f")); | |
| 125 assertEq(f(4,2), 2); | |
| 126 assertEq(f(3,2), 1); | |
| 127 assertEq(f(3,-2), -1); | |
| 128 assertEq(f(-3,-2), 1); | |
| 129 assertEq(f(0, -1), 0); | |
| 130 assertEq(f(0, INT32_MAX), 0); | |
| 131 assertEq(f(0, INT32_MIN), 0); | |
| 132 assertEq(f(INT32_MAX, 0), 0); | |
| 133 assertEq(f(INT32_MIN, 0), 0); | |
| 134 assertEq(f(-1, INT32_MAX), 0); | |
| 135 assertEq(f(-1, INT32_MIN), 0); | |
| 136 assertEq(f(INT32_MAX, -1), -INT32_MAX); | |
| 137 assertEq(f(INT32_MIN, -1), INT32_MIN); // !! | |
| 138 assertEq(f(INT32_MAX, INT32_MAX), 1); | |
| 139 assertEq(f(INT32_MAX, INT32_MIN), 0); | |
| 140 assertEq(f(INT32_MIN, INT32_MAX), -1); | |
| 141 assertEq(f(INT32_MIN, INT32_MIN), 1); | |
| 142 | |
| 143 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; return ((i>>>0)/(j>>>0))|0 } return f")); | |
| 144 assertEq(f(4,2), 2); | |
| 145 assertEq(f(3,2), 1); | |
| 146 assertEq(f(3,-2), 0); | |
| 147 assertEq(f(-3,-2), 0); | |
| 148 assertEq(f(0, -1), 0); | |
| 149 assertEq(f(0, INT32_MAX), 0); | |
| 150 assertEq(f(0, INT32_MIN), 0); | |
| 151 assertEq(f(0, UINT32_MAX), 0); | |
| 152 assertEq(f(INT32_MAX, 0), 0); | |
| 153 assertEq(f(INT32_MIN, 0), 0); | |
| 154 assertEq(f(UINT32_MAX, 0), 0); | |
| 155 assertEq(f(-1, INT32_MAX), 2); | |
| 156 assertEq(f(-1, INT32_MIN), 1); | |
| 157 assertEq(f(-1, UINT32_MAX), 1); | |
| 158 assertEq(f(INT32_MAX, -1), 0); | |
| 159 assertEq(f(INT32_MIN, -1), 0); | |
| 160 assertEq(f(UINT32_MAX, -1), 1); | |
| 161 assertEq(f(INT32_MAX, INT32_MAX), 1); | |
| 162 assertEq(f(INT32_MAX, INT32_MIN), 0); | |
| 163 assertEq(f(UINT32_MAX, INT32_MAX), 2); | |
| 164 assertEq(f(INT32_MAX, UINT32_MAX), 0); | |
| 165 assertEq(f(UINT32_MAX, UINT32_MAX), 1); | |
| 166 assertEq(f(INT32_MIN, INT32_MAX), 1); | |
| 167 assertEq(f(INT32_MIN, UINT32_MAX), 0); | |
| 168 assertEq(f(INT32_MIN, INT32_MIN), 1); | |
| 169 | |
| 170 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k = 0; k = (i|0)%(j|0)|0; return k|0 } return f")); | |
| 171 assertEq(f(4,2), 0); | |
| 172 assertEq(f(3,2), 1); | |
| 173 assertEq(f(3,-2), 1); | |
| 174 assertEq(f(-3,-2), -1); | |
| 175 assertEq(f(0, -1), 0); | |
| 176 assertEq(f(0, INT32_MAX), 0); | |
| 177 assertEq(f(0, INT32_MIN), 0); | |
| 178 assertEq(f(INT32_MAX, 0), 0); | |
| 179 assertEq(f(INT32_MIN, 0), 0); | |
| 180 assertEq(f(-1, INT32_MAX), -1); | |
| 181 assertEq(f(-1, INT32_MIN), -1); | |
| 182 assertEq(f(INT32_MAX, -1), 0); | |
| 183 assertEq(f(INT32_MIN, -1), 0); // !! | |
| 184 assertEq(f(INT32_MAX, INT32_MAX), 0); | |
| 185 assertEq(f(INT32_MAX, INT32_MIN), INT32_MAX); | |
| 186 assertEq(f(INT32_MIN, INT32_MAX), -1); | |
| 187 assertEq(f(INT32_MIN, INT32_MIN), 0); | |
| 188 | |
| 189 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k = 0; k = (i|0)%4|0; return k|0 } return f")); | |
| 190 assertEq(f(0), 0); | |
| 191 assertEq(f(-1), -1); | |
| 192 assertEq(f(-3), -3); | |
| 193 assertEq(f(-4), 0); | |
| 194 assertEq(f(INT32_MIN), 0); | |
| 195 assertEq(f(3), 3); | |
| 196 assertEq(f(4), 0); | |
| 197 assertEq(f(INT32_MAX), 3); | |
| 198 | |
| 199 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var k = 0; k = (i>>>0)%(j>>>0)|0; return k|0 } return f")); | |
| 200 assertEq(f(4,2), 0); | |
| 201 assertEq(f(3,2), 1); | |
| 202 assertEq(f(3,-2), 3); | |
| 203 assertEq(f(-3,-2), -3); | |
| 204 assertEq(f(0, -1), 0); | |
| 205 assertEq(f(0, INT32_MAX), 0); | |
| 206 assertEq(f(0, INT32_MIN), 0); | |
| 207 assertEq(f(0, UINT32_MAX), 0); | |
| 208 assertEq(f(INT32_MAX, 0), 0); | |
| 209 assertEq(f(INT32_MIN, 0), 0); | |
| 210 assertEq(f(UINT32_MAX, 0), 0); | |
| 211 assertEq(f(-1, INT32_MAX), 1); | |
| 212 assertEq(f(-1, INT32_MIN), INT32_MAX); | |
| 213 assertEq(f(-1, UINT32_MAX), 0); | |
| 214 assertEq(f(INT32_MAX, -1), INT32_MAX); | |
| 215 assertEq(f(INT32_MIN, -1), INT32_MIN); | |
| 216 assertEq(f(UINT32_MAX, -1), 0); | |
| 217 assertEq(f(INT32_MAX, INT32_MAX), 0); | |
| 218 assertEq(f(INT32_MAX, INT32_MIN), INT32_MAX); | |
| 219 assertEq(f(UINT32_MAX, INT32_MAX), 1); | |
| 220 assertEq(f(INT32_MAX, UINT32_MAX), INT32_MAX); | |
| 221 assertEq(f(UINT32_MAX, UINT32_MAX), 0); | |
| 222 assertEq(f(INT32_MIN, INT32_MAX), 1); | |
| 223 assertEq(f(INT32_MIN, UINT32_MAX), INT32_MIN); | |
| 224 assertEq(f(INT32_MIN, INT32_MIN), 0); | |
| 225 | |
| 226 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (4 / 2)|0 } return f"))(), 2); | |
| 227 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (3 / 2)|0 } return f"))(), 1); | |
| 228 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (4 % 2)|0 } return f"))(), 0); | |
| 229 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (3 % 2)|0 } return f"))(), 1); | |
| 230 | |
| 231 assertAsmTypeFail(USE_ASM + "function f() { var i=42,j=1.1; return +(i?i:j) } return f"); | |
| 232 assertEq(asmLink(asmCompile(USE_ASM + "function f() { var i=42,j=1.1; return +(i?+(i|0):j) } return f"))(), 42); | |
| 233 assertEq(asmLink(asmCompile(USE_ASM + "function f() { var i=42,j=1; return (i?i:j)|0 } return f"))(), 42); | |
| 234 | |
| 235 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; return ((i|0)>(j|0)?(i+10)|0:(j+100)|0)|0 } return f")); | |
| 236 assertEq(f(2, 4), 104); | |
| 237 assertEq(f(-2, -4), 8); | |
| 238 | |
| 239 var f = asmLink(asmCompile(USE_ASM + "function f(i,j,k) { i=i|0;j=j|0;k=k|0; return ((i|0)>(j|0) ? (i|0)>(k|0) ? i : k : (j|0)>(k|0) ? j : k)|0 } return f")); | |
| 240 assertEq(f(1,2,3), 3); | |
| 241 assertEq(f(1,3,2), 3); | |
| 242 assertEq(f(2,1,3), 3); | |
| 243 assertEq(f(2,3,1), 3); | |
| 244 assertEq(f(3,1,2), 3); | |
| 245 assertEq(f(3,2,1), 3); | |
| 246 | |
| 247 var f = asmLink(asmCompile(USE_ASM + "function f(i,j) { i=i|0;j=j|0; var a=0,b=0; a=i>>>0 < 4294967292; b=(i|0) < -4; return (j ? a : b)|0 } return f")); | |
| 248 assertEq(f(1,true), 1); | |
| 249 assertEq(f(-1,true), 0); | |
| 250 assertEq(f(-5,true), 1); | |
| 251 assertEq(f(1,false), 0); | |
| 252 assertEq(f(-1,false), 0); | |
| 253 assertEq(f(-5,false), 1); | |
| 254 | |
| 255 assertAsmTypeFail('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return (i32[0]+1)|0 } return f"); | |
| 256 new Float64Array(BUF_64KB)[0] = 2.3; | |
| 257 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +(f64[0] + 2.0) } return f"), this, null, BUF_64KB)(), 2.3+2); | |
| 258 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +(f64[0] - 2.0) } return f"), this, null, BUF_64KB)(), 2.3-2); | |
| 259 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +(f64[0] * 2.0) } return f"), this, null, BUF_64KB)(), 2.3*2); | |
| 260 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +(f64[0] / 2.0) } return f"), this, null, BUF_64KB)(), 2.3/2); | |
| 261 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +(f64[0] % 2.0) } return f"), this, null, BUF_64KB)(), 2.3%2); | |
| 262 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "function f() { return +-f64[0] } return f"), this, null, BUF_64KB)(), -2.3); | |
| 263 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "var sqrt=glob.Math.sqrt; function f() { return +sqrt(f64[0]) } return f"), this, null, BUF_64KB)(), Math.sqrt(2.3)); | |
| 264 new Int32Array(BUF_64KB)[0] = 42; | |
| 265 assertEq(asmLink(asmCompile('glob','imp','b', USE_ASM + HEAP_IMPORTS + "var imul=glob.Math.imul; function f() { return imul(i32[0], 2)|0 } return f"), this, null, BUF_64KB)(), 84); | |
| 266 | |
| 267 // beware ye phis of comparisons and integers | |
| 268 var f = asmLink(asmCompile(USE_ASM + "function g(i) { i=i|0; if (i) { i = ((i|0) == 2); } else { i=(i-1)|0 } return i|0; } return g ")); | |
| 269 assertEq(f(0), -1); | |
| 270 assertEq(f(1), 0); | |
| 271 assertEq(f(2), 1); | |
| 272 var f = asmLink(asmCompile(USE_ASM + "function g(i) { i=i|0; if (i) { i = !i } else { i=(i-1)|0 } return i|0; } return g ")); | |
| 273 assertEq(f(0), -1); | |
| 274 assertEq(f(1), 0); | |
| 275 assertEq(f(2), 0); | |
| 276 | |
| 277 // beware ye constant-evaluate of boolean-producing operators | |
| 278 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (4 | (2 == 2))|0 } return f"))(), 5); | |
| 279 assertEq(asmLink(asmCompile(USE_ASM + "function f() { return (4 | (!2))|0 } return f"))(), 4); | |
| 280 | |
| 281 // get that order-of-operations right! | |
| 282 var buf = new ArrayBuffer(4096); | |
| 283 asmLink(asmCompile('glob','imp','buf', USE_ASM + "var i32=new glob.Int32Array(buf); var x=0; function a() { return x|0 } function b() { x=42; return 0 } function f() { i32[((b()|0) & 0x3) >> 2] = a()|0 } return f"), this, null, buf)(); | |
| 284 assertEq(new Int32Array(buf)[0], 42); | |
| 285 | |
| 286 assertEq(asmLink(asmCompile(USE_ASM + "function f() { var a=0,i=0; for (; ~~i!=4; i=(i+1)|0) { a = (a*5)|0; if (+(a>>>0) != 0.0) return 1; } return 0; } return f"))(), 0) | |
| 287 | |
| 288 // Signed integer division by a power of two. | |
| 289 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return ((i|0)/1)|0; } return f;")); | |
| 290 for (let i = 0; i < 31; i++) { | |
| 291 assertEq(f(Math.pow(2,i)), Math.pow(2,i)); | |
| 292 assertEq(f(Math.pow(2,i)-1), Math.pow(2,i)-1); | |
| 293 assertEq(f(-Math.pow(2,i)), -Math.pow(2,i)); | |
| 294 assertEq(f(-Math.pow(2,i)-1), -Math.pow(2,i)-1); | |
| 295 } | |
| 296 assertEq(f(INT32_MIN), INT32_MIN); | |
| 297 assertEq(f(INT32_MAX), INT32_MAX); | |
| 298 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return ((i|0)/2)|0; } return f;")); | |
| 299 for (let i = 0; i < 31; i++) { | |
| 300 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/2)|0); | |
| 301 assertEq(f(Math.pow(2,i)-1), ((Math.pow(2,i)-1)/2)|0); | |
| 302 assertEq(f(-Math.pow(2,i)), (-Math.pow(2,i)/2)|0); | |
| 303 assertEq(f(-Math.pow(2,i)-1), ((-Math.pow(2,i)-1)/2)|0); | |
| 304 } | |
| 305 assertEq(f(INT32_MIN), (INT32_MIN/2)|0); | |
| 306 assertEq(f(INT32_MAX), (INT32_MAX/2)|0); | |
| 307 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return ((i|0)/4)|0; } return f;")); | |
| 308 for (let i = 0; i < 31; i++) { | |
| 309 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/4)|0); | |
| 310 assertEq(f(Math.pow(2,i)-1), ((Math.pow(2,i)-1)/4)|0); | |
| 311 assertEq(f(-Math.pow(2,i)), (-Math.pow(2,i)/4)|0); | |
| 312 assertEq(f(-Math.pow(2,i)-1), ((-Math.pow(2,i)-1)/4)|0); | |
| 313 } | |
| 314 assertEq(f(INT32_MIN), (INT32_MIN/4)|0); | |
| 315 assertEq(f(INT32_MAX), (INT32_MAX/4)|0); | |
| 316 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return ((i|0)/1073741824)|0; } return f;")); | |
| 317 for (let i = 0; i < 31; i++) { | |
| 318 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/Math.pow(2,30))|0); | |
| 319 assertEq(f(Math.pow(2,i)-1), ((Math.pow(2,i)-1)/Math.pow(2,30))|0); | |
| 320 assertEq(f(-Math.pow(2,i)), (-Math.pow(2,i)/Math.pow(2,30))|0); | |
| 321 assertEq(f(-Math.pow(2,i)-1), ((-Math.pow(2,i)-1)/Math.pow(2,30))|0); | |
| 322 } | |
| 323 assertEq(f(INT32_MIN), (INT32_MIN/Math.pow(2,30))|0); | |
| 324 assertEq(f(INT32_MAX), (INT32_MAX/Math.pow(2,30))|0); | |
| 325 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; return ((((i|0)/1)|0)+i)|0; } return f;")); | |
| 326 for (let i = 0; i < 31; i++) { | |
| 327 assertEq(f(Math.pow(2,i)), (Math.pow(2,i) * 2)|0); | |
| 328 assertEq(f(Math.pow(2,i) - 1), ((Math.pow(2,i) - 1) * 2)|0); | |
| 329 assertEq(f(-Math.pow(2,i)), (-Math.pow(2,i) * 2)|0); | |
| 330 assertEq(f(-Math.pow(2,i) - 1), ((-Math.pow(2,i) - 1) * 2)|0); | |
| 331 } | |
| 332 assertEq(f(INT32_MIN), (INT32_MIN * 2)|0); | |
| 333 assertEq(f(INT32_MAX), (INT32_MAX * 2)|0); | |
| 334 | |
| 335 // Signed integer division by a power of two - with a non-negative numerator! | |
| 336 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; i=(i&2147483647)|0; return ((i|0)/1)|0; } return f;")); | |
| 337 for (let i = 0; i < 31; i++) { | |
| 338 assertEq(f(Math.pow(2,i)), Math.pow(2,i)); | |
| 339 assertEq(f(Math.pow(2,i+1)-1), Math.pow(2,i+1)-1); | |
| 340 } | |
| 341 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; i=(i&2147483647)|0; return ((i|0)/2)|0; } return f;")); | |
| 342 for (let i = 0; i < 31; i++) { | |
| 343 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/2)|0); | |
| 344 assertEq(f(Math.pow(2,i+1)-1), ((Math.pow(2,i+1)-1)/2)|0); | |
| 345 } | |
| 346 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; i=(i&2147483647)|0; return ((i|0)/4)|0; } return f;")); | |
| 347 for (let i = 0; i < 31; i++) { | |
| 348 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/4)|0); | |
| 349 assertEq(f(Math.pow(2,i+1)-1), ((Math.pow(2,i+1)-1)/4)|0); | |
| 350 } | |
| 351 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; i=(i&2147483647)|0; return ((i|0)/1073741824)|0; } return f;")); | |
| 352 for (let i = 0; i < 31; i++) { | |
| 353 assertEq(f(Math.pow(2,i)), (Math.pow(2,i)/Math.pow(2,30))|0); | |
| 354 assertEq(f(Math.pow(2,i+1)-1), ((Math.pow(2,i+1)-1)/Math.pow(2,30))|0); | |
| 355 } | |
| 356 var f = asmLink(asmCompile(USE_ASM + "function f(i) { i=i|0; i=(i&2147483647)|0; return ((((i|0)/1)|0)+i)|0; } return f;")); | |
| 357 for (let i = 0; i < 31; i++) { | |
| 358 assertEq(f(Math.pow(2,i)), (Math.pow(2,i) * 2)|0); | |
| 359 assertEq(f(Math.pow(2,i+1) - 1), ((Math.pow(2,i+1) - 1) * 2)|0); | |
| 360 } |
