glibc/sysdeps/x86_64/fpu/multiarch/e_asin.c

#ifdef HAVE_FMA4_SUPPORT
# include <init-arch.h>
# include <math.h>
# include <math_private.h>

extern double __ieee754_acos_sse2 (double);
extern double __ieee754_asin_sse2 (double);
extern double __ieee754_acos_fma4 (double);
extern double __ieee754_asin_fma4 (double);

libm_ifunc (__ieee754_acos,
	    HAS_FMA4 ? __ieee754_acos_fma4 : __ieee754_acos_sse2);
strong_alias (__ieee754_acos, __acos_finite)

libm_ifunc (__ieee754_asin,
	    HAS_FMA4 ? __ieee754_asin_fma4 : __ieee754_asin_sse2);
strong_alias (__ieee754_asin, __asin_finite)

# define __ieee754_acos __ieee754_acos_sse2
# define __ieee754_asin __ieee754_asin_sse2
#endif


#include <sysdeps/ieee754/dbl-64/e_asin.c>
Remove code without too much effects Some of the AVX-specific code is not giving enough speed-up to justify the extra code. 2011-10-28 20:55:01 +00:00			`#ifdef HAVE_FMA4_SUPPORT`
Optimize accurate 64-bit routines for FMA4 on x86-64 2011-10-25 00:19:17 +00:00			`# include <init-arch.h>`
Fix asin missing underflows (bug 16351). Similar to various other bugs in this area, some asin implementations do not raise the underflow exception for subnormal arguments, when the result is tiny and inexact. This patch forces the exception in a similar way to previous fixes. Tested for x86_64, x86, powerpc and mips64. [BZ #16351] * sysdeps/i386/fpu/e_asin.S (dbl_min): New object. (MO): New macro. (__ieee754_asin): Force underflow exception for results with small absolute value. * sysdeps/i386/fpu/e_asinf.S (flt_min): New object. (MO): New macro. (__ieee754_asinf): Force underflow exception for results with small absolute value. * sysdeps/ieee754/dbl-64/e_asin.c: Include <float.h> and <math.h>. (__ieee754_asin): Force underflow exception for results with small absolute value. * sysdeps/ieee754/flt-32/e_asinf.c: Include <float.h>. (__ieee754_asinf): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-128/e_asinl.c: Include <float.h>. (__ieee754_asinl): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-128ibm/e_asinl.c: Include <float.h>. (__ieee754_asinl): Force underflow exception for results with small absolute value. * sysdeps/ieee754/ldbl-96/e_asinl.c: Include <float.h>. (__ieee754_asinl): Force underflow exception for results with small absolute value. * sysdeps/x86_64/fpu/multiarch/e_asin.c [HAVE_FMA4_SUPPORT]: Include <math.h>. * math/auto-libm-test-in: Do not mark underflow exceptions as possibly missing for bug 16351. * math/auto-libm-test-out: Regenerated. 2015-02-26 17:18:54 +00:00			`# include <math.h>`
Optimize accurate 64-bit routines for FMA4 on x86-64 2011-10-25 00:19:17 +00:00			`# include <math_private.h>`

			`extern double __ieee754_acos_sse2 (double);`
			`extern double __ieee754_asin_sse2 (double);`
Add AVX optimized versions for some x86-64 math functions 2011-10-26 01:34:55 +00:00			`extern double __ieee754_acos_fma4 (double);`
Optimize accurate 64-bit routines for FMA4 on x86-64 2011-10-25 00:19:17 +00:00			`extern double __ieee754_asin_fma4 (double);`

			`libm_ifunc (__ieee754_acos,`
Remove code without too much effects Some of the AVX-specific code is not giving enough speed-up to justify the extra code. 2011-10-28 20:55:01 +00:00			`HAS_FMA4 ? __ieee754_acos_fma4 : __ieee754_acos_sse2);`
Optimize accurate 64-bit routines for FMA4 on x86-64 2011-10-25 00:19:17 +00:00			`strong_alias (__ieee754_acos, __acos_finite)`

			`libm_ifunc (__ieee754_asin,`
Remove code without too much effects Some of the AVX-specific code is not giving enough speed-up to justify the extra code. 2011-10-28 20:55:01 +00:00			`HAS_FMA4 ? __ieee754_asin_fma4 : __ieee754_asin_sse2);`
Optimize accurate 64-bit routines for FMA4 on x86-64 2011-10-25 00:19:17 +00:00			`strong_alias (__ieee754_asin, __asin_finite)`

			`# define __ieee754_acos __ieee754_acos_sse2`
			`# define __ieee754_asin __ieee754_asin_sse2`
			`#endif`


			`#include <sysdeps/ieee754/dbl-64/e_asin.c>`