/** * This file has no copyright assigned and is placed in the Public Domain. * This file is part of the mingw-w64 runtime package. * No warranty is given; refer to the file DISCLAIMER.PD within this package. */ #include <_mingw_mac.h> .file "log1pf.S" .text #ifdef __x86_64__ .align 8 #else .align 4 #endif /* The fyl2xp1 can only be used for values in -1 + sqrt(2) / 2 <= x <= 1 - sqrt(2) / 2 0.29 is a safe value. */ limit: .float 0.29 one: .float 1.0 /* * Use the fyl2xp1 function when the argument is in the range -0.29 to 0.29, * otherwise fyl2x with the needed extra computation. */ .globl __MINGW_USYMBOL(log1pf) .def __MINGW_USYMBOL(log1pf); .scl 2; .type 32; .endef __MINGW_USYMBOL(log1pf): #ifdef __x86_64__ movss %xmm0,-12(%rsp) fldln2 flds -12(%rsp) fxam fnstsw fld %st sahf jc 3f // in case x is NaN or ħInf 4: fabs fcomps limit(%rip) fnstsw sahf jc 2f fadds one(%rip) fyl2x fstps -12(%rsp) movss -12(%rsp),%xmm0 ret 2: fyl2xp1 fstps -12(%rsp) movss -12(%rsp),%xmm0 ret 3: jp 4b // in case x is ħInf fstp %st(1) fstp %st(1) fstps -12(%rsp) movss -12(%rsp),%xmm0 ret #else fldln2 flds 4(%esp) fxam fnstsw fld %st sahf jc 3f // in case x is NaN or ħInf 4: fabs fcomps limit fnstsw sahf jc 2f fadds one fyl2x ret 2: fyl2xp1 ret 3: jp 4b // in case x is ħInf fstp %st(1) fstp %st(1) ret #endif