diff options
Diffstat (limited to 'vendor/compiler_builtins/src/float/conv.rs')
| -rw-r--r-- | vendor/compiler_builtins/src/float/conv.rs | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/vendor/compiler_builtins/src/float/conv.rs b/vendor/compiler_builtins/src/float/conv.rs index 68ba63408..19fdc2fdc 100644 --- a/vendor/compiler_builtins/src/float/conv.rs +++ b/vendor/compiler_builtins/src/float/conv.rs @@ -13,7 +13,7 @@ mod int_to_float { let a = (i << n) >> 8; // Significant bits, with bit 24 still in tact. let b = (i << n) << 24; // Insignificant bits, only relevant for rounding. let m = a + ((b - (b >> 31 & !a)) >> 31); // Add one when we need to round up. Break ties to even. - let e = 157 - n as u32; // Exponent plus 127, minus one. + let e = 157 - n; // Exponent plus 127, minus one. (e << 23) + m // + not |, so the mantissa can overflow into the exponent. } @@ -42,8 +42,8 @@ mod int_to_float { return 0; } let n = i.leading_zeros(); - let a = ((i << n) >> 11) as u64; // Significant bits, with bit 53 still in tact. - let b = ((i << n) << 53) as u64; // Insignificant bits, only relevant for rounding. + let a = (i << n) >> 11; // Significant bits, with bit 53 still in tact. + let b = (i << n) << 53; // Insignificant bits, only relevant for rounding. let m = a + ((b - (b >> 63 & !a)) >> 63); // Add one when we need to round up. Break ties to even. let e = 1085 - n as u64; // Exponent plus 1023, minus one. (e << 52) + m // + not |, so the mantissa can overflow into the exponent. |