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Diffstat (limited to 'src/runtime.js')
| -rw-r--r-- | src/runtime.js | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/runtime.js b/src/runtime.js index d5c0fabc..2a26db28 100644 --- a/src/runtime.js +++ b/src/runtime.js @@ -122,57 +122,6 @@ var Runtime = { INT_TYPES: set('i1', 'i8', 'i16', 'i32', 'i64'), FLOAT_TYPES: set('float', 'double'), - // Mirrors processMathop's treatment of constants (which we optimize directly) - BITSHIFT64_SHL: 0, - BITSHIFT64_ASHR: 1, - BITSHIFT64_LSHR: 2, - bitshift64: function(low, high, op, bits) { - var ret; - var ander = Math.pow(2, bits)-1; - if (bits < 32) { - switch (op) { - case Runtime.BITSHIFT64_SHL: - ret = [low << bits, (high << bits) | ((low&(ander << (32 - bits))) >>> (32 - bits))]; - break; - case Runtime.BITSHIFT64_ASHR: - ret = [(((low >>> bits ) | ((high&ander) << (32 - bits))) >> 0) >>> 0, (high >> bits) >>> 0]; - break; - case Runtime.BITSHIFT64_LSHR: - ret = [((low >>> bits) | ((high&ander) << (32 - bits))) >>> 0, high >>> bits]; - break; - } - } else if (bits == 32) { - switch (op) { - case Runtime.BITSHIFT64_SHL: - ret = [0, low]; - break; - case Runtime.BITSHIFT64_ASHR: - ret = [high, (high|0) < 0 ? ander : 0]; - break; - case Runtime.BITSHIFT64_LSHR: - ret = [high, 0]; - break; - } - } else { // bits > 32 - switch (op) { - case Runtime.BITSHIFT64_SHL: - ret = [0, low << (bits - 32)]; - break; - case Runtime.BITSHIFT64_ASHR: - ret = [(high >> (bits - 32)) >>> 0, (high|0) < 0 ? ander : 0]; - break; - case Runtime.BITSHIFT64_LSHR: - ret = [high >>> (bits - 32) , 0]; - break; - } - } -#if ASSERTIONS - assert(ret); -#endif - HEAP32[tempDoublePtr>>2] = ret[0]; // cannot use utility functions since we are in runtime itself - HEAP32[tempDoublePtr+4>>2] = ret[1]; - }, - // Imprecise bitops utilities or64: function(x, y) { var l = (x | 0) | (y | 0); |