67 lines
1.7 KiB
ArmAsm
67 lines
1.7 KiB
ArmAsm
/* Copyright (C) 2008-2021 Free Software Foundation, Inc.
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Contributed by Embecosm on behalf of Adapteva, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "../epiphany-asm.h"
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/* Assumptions: NaNs have all bits 10..30 and one of bit 0..9 set.
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after sub: AC = ~Borrow.
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clobber: TMP0
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output: gt / gte indicates greater / greater or equal. */
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FSTAB (__gtesf2,T_INT)
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.global SYM(__gtesf2)
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.balign 4
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HIDDEN_FUNC(__gtesf2)
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SYM(__gtesf2):
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#ifndef FLOAT_FORMAT_MOTOROLA
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mov TMP0,0xffff
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movt TMP0,0x7f
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add TMP0,TMP0,r0
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eor TMP0,TMP0,r0
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blt .Lret
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mov TMP0,0xffff
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movt TMP0,0x7f
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add TMP0,TMP0,r1
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#else
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add TMP0,r0,0x3ff; check for r0 NaN
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eor TMP0,TMP0,r0
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blt .Lret
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add TMP0,r1,0x3ff; check for r1 NaN
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#endif
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eor TMP0,TMP0,r1
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blt .Lret
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and TMP0,r0,r1
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blt .Lneg
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orr TMP0,r0,r1
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lsl TMP0,TMP0,1
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beq .Lret
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sub TMP0,r0,r1
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.Lret:
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rts
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.balign 4
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.Lneg:
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sub TMP0,r1,r0
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rts
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ENDFUNC(__gtesf2)
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