https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110170
--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to Antony Polukhin from comment #2) > -fno-trapping-math had no effect > > Some tests with nans seem to produce the same results for both code > snippets: https://godbolt.org/z/GaKM3EhMq What about infinity, I notice With -ffinite-math-only -funsafe-math-optimizations, gcc now can generate __cond_swap(double*, double*): movsd (%rdi), %xmm0 movsd (%rsi), %xmm1 movapd %xmm0, %xmm2 minsd %xmm1, %xmm0 maxsd %xmm1, %xmm2 movsd %xmm2, (%rsi) movsd %xmm0, (%rdi) ret
