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* sysdeps/i386/fpu/s_tanf.S: Likewise. * sysdeps/i386/fpu/s_tanl.S: Likewise. * sysdeps/ieee754/dbl-64/s_tan.c: Likewise. * sysdeps/ieee754/flt-32/s_tanf.c: Likewise. * sysdeps/x86_64/fpu/s_tanl.S: Likewise. * math/libm-test.inc: Add tests for errno after tan calls with ±Inf.
46 lines
737 B
ArmAsm
46 lines
737 B
ArmAsm
/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Public domain.
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*
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* Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
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* Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
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* Fixed errno handling by Ulrich Drepper <drepper@redhat.com>.
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*/
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#define __need_Emath
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#include <bits/errno.h>
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#include <machine/asm.h>
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RCSID("$NetBSD: $")
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ENTRY(__tanl)
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fldt 8(%rsp)
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fxam
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fstsw %ax
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movb $0x45, %dh
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andb %ah, %dh
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cmpb $0x05, %dh
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je 3f
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4: fptan
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fnstsw %ax
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testl $0x400,%eax
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jnz 1f
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fstp %st(0)
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ret
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1: fldpi
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fadd %st(0)
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fxch %st(1)
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2: fprem1
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fstsw %ax
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testl $0x400,%eax
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jnz 2b
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fstp %st(1)
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fptan
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fstp %st(0)
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ret
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3: call __errno_location@PLT
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movl $EDOM, (%rax)
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jmp 4b
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END (__tanl)
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weak_alias (__tanl, tanl)
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