#define IS_NEGATIVE_ZERO(num) (_fpclass(num) == _FPCLASS_NZ) is much better test for negative zero on windows than #define IS_NEGATIVE_ZERO(num) (num == 0.0 && !memcmp(&num, &SimpleNumber::negZero, sizeof(double))) This reduces number of jsc tests failed on win from 86 to 75.
Created attachment 3790 [details] fix IS_NEGATIVE_ZERO macro on win
Comment on attachment 3790 [details] fix IS_NEGATIVE_ZERO macro on win r=me