diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/parseTools.js | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/parseTools.js b/src/parseTools.js index 4e1833ae..0a86abc1 100644 --- a/src/parseTools.js +++ b/src/parseTools.js @@ -1623,6 +1623,10 @@ function makeSignOp(value, type, op, force, ignore) { function makeRounding(value, bits, signed, floatConversion) { // TODO: handle roundings of i64s assert(bits); + if (ASM_JS && floatConversion && bits <= 32) { + return '(~~(' + value + '))'; // explicit float-to-int conversion + } + // C rounds to 0 (-5.5 to -5, +5.5 to 5), while JS has no direct way to do that. if (bits <= 32 && signed) return '((' + value + ')&-1)'; // This is fast and even correct, for all cases. Note that it is the same // as |0, but &-1 hints to the js optimizer that this is a rounding correction |