diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/s_log1pl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/s_log1pl.S | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/sysdeps/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S deleted file mode 100644 index 947e5e4552..0000000000 --- a/sysdeps/x86_64/fpu/s_log1pl.S +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Written by J.T. Conklin <jtc@netbsd.org>. - * Public domain. - * - * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. - * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>. - */ - -#include <machine/asm.h> - -RCSID("$NetBSD: s_log1p.S,v 1.7 1995/05/09 00:10:58 jtc Exp $") - - .section .rodata - - .align ALIGNARG(4) - /* 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: .tfloat 0.29 - /* Please note: we use a double value here. Since 1.0 has - an exact representation this does not effect the accuracy - but it helps to optimize the code. */ -one: .double 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. - */ -#ifdef PIC -#define MO(op) op##(%rip) -#else -#define MO(op) op -#endif - - .text -ENTRY(__log1pl) - fldln2 - - fldt 8(%rsp) - - fxam - fnstsw - fld %st - testb $1, %ah - jnz 3f // in case x is NaN or ħInf -4: - fabs - fldt MO(limit) - fcompp - fnstsw - andb $1,%ah - jz 2f - - movzwl 8+8(%rsp), %eax - xorb $0x80, %ah - cmpl $0xc040, %eax - jae 5f - - faddl MO(one) -5: fyl2x - ret - -2: fyl2xp1 - ret - -3: testb $4, %ah - jnz 4b // in case x is ħInf - fstp %st(1) - fstp %st(1) - fadd %st(0) - ret - -END (__log1pl) |