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1999-10-24 Ulrich Drepper <drepper@cygnus.com> * math/libm-test.inc: Disable some boundary case tests for inline function testing. * math/math.h: Pretty printing. * sysdeps/i386/fpu/e_atanh.S: Correct handling of NaN. * sysdeps/i386/fpu/e_atanhf.S: Likewise. * sysdeps/i386/fpu/e_atanhl.S: Likewise. * sysdeps/i386/fpu/e_log10.S: Likewise. * sysdeps/i386/fpu/e_log10f.S: Likewise. * sysdeps/i386/fpu/e_log10l.S: Likewise. * sysdeps/i386/fpu/s_log1p.S: Likewise. * sysdeps/i386/fpu/s_log1pf.S: Likewise. * sysdeps/i386/fpu/s_log1pl.S: Likewise. * sysdeps/i386/fpu/s_log2.S: Likewise. * sysdeps/i386/fpu/s_log2f.S: Likewise. * sysdeps/i386/fpu/s_log2l.S: Likewise. * sysdeps/i386/fpu/libm-test-ulps: New file. * sysdeps/i386/fpu/bits/mathinline.h (__expm1_code): Correct return value for x == 0. (pow): Correct case x == 0. (__sgn1l): Correct handling of -0.0. 1999-10-22 Andreas Jaeger <aj@suse.de> * math/libm-test.inc (asinh_test): Add test for NaN as input parameter. (atan_test): Likewise. (atanh_test): Likewise. (atan2_test): Likewise. (carg_test): Likewise. (ceil_test): Likewise. (cos_test): Likewise. (cosh_test): Likewise. (cpow_test): Likewise. (erf_test): Likewise. (erfc_test): Likewise. (exp_test): Likewise. (exp10_test): Likewise. (exp2_test): Likewise. (expm1_test): Likewise. (fabs_test): Likewise. (floor_test): Likewise. (fmod_test): Likewise. (gamma_test): Likewise. (lgamma_test): Likewise. (log10_test): Likewise. (log1p_test): Likewise. (log2_test): Likewise. (logb_test): Likewise. (nearbyint_test): Likewise. (remainder_test): Likewise. (remquo_test): Likewise. (sin_test): Likewise. (sincos_test): Likewise. (sinh_test): Likewise. (sqrt_test): Likewise. (tan_test): Likewise. (tanh_test): Likewise. (tgamma_test): Likewise.
70 lines
1.4 KiB
ArmAsm
70 lines
1.4 KiB
ArmAsm
/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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* Adapted for float type by Ulrich Drepper <drepper@cygnus.com>.
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*
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* Changed to use fyl2xp1 for values near 1, <drepper@cygnus.com>.
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*/
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#include <machine/asm.h>
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RCSID("$NetBSD: $")
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#ifdef __ELF__
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.section .rodata
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#else
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.text
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#endif
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.align ALIGNARG(4)
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ASM_TYPE_DIRECTIVE(one,@object)
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one: .double 1.0
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ASM_SIZE_DIRECTIVE(one)
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/* It is not important that this constant is precise. It is only
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a value which is known to be on the safe side for using the
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fyl2xp1 instruction. */
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ASM_TYPE_DIRECTIVE(limit,@object)
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limit: .double 0.29
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ASM_SIZE_DIRECTIVE(limit)
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#ifdef PIC
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#define MO(op) op##@GOTOFF(%edx)
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#else
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#define MO(op) op
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#endif
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.text
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ENTRY(__ieee754_log10f)
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fldlg2 // log10(2)
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flds 4(%esp) // x : log10(2)
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#ifdef PIC
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call 1f
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1: popl %edx
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addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %edx
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#endif
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fxam
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fnstsw
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fld %st // x : x : log10(2)
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sahf
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jc 3f // in case x is NaN or ±Inf
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4: fsubl MO(one) // x-1 : x : log10(2)
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fld %st // x-1 : x-1 : x : log10(2)
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fabs // |x-1| : x-1 : x : log10(2)
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fcompl MO(limit) // x-1 : x : log10(2)
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fnstsw // x-1 : x : log10(2)
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andb $0x45, %ah
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jz 2f
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fstp %st(1) // x-1 : log10(2)
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fyl2xp1 // log10(x)
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ret
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2: fstp %st(0) // x : log10(2)
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fyl2x // log10(x)
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ret
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3: jp 4b // in case x is ±Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__ieee754_log10f)
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