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337c270829
* 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.
56 lines
867 B
ArmAsm
56 lines
867 B
ArmAsm
/*
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* Written by J.T. Conklin <jtc@netbsd.org>.
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* Fixed errno handling by Ulrich Drepper <drepper@redhat.com>.
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* Public domain.
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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: s_tanf.S,v 1.3 1995/05/09 00:31:09 jtc Exp $")
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ENTRY(__tanf)
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flds 4(%esp)
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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:
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#ifdef PIC
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pushl %ebx
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (ebx, 0)
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LOAD_PIC_REG (bx)
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call __errno_location@PLT
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movl $EDOM, (%eax)
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popl %ebx
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cfi_adjust_cfa_offset (-4)
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cfi_restore (ebx)
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#else
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call __errno_location@PLT
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movl $EDOM, (%eax)
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#endif
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jmp 4b
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END (__tanf)
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weak_alias (__tanf, tanf)
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