[thirdparty/glibc.git] / sysdeps / ia64 / fpu / s_fabs.S

.file "fabs.s"


// Copyright (c) 2000 - 2003, Intel Corporation
// All rights reserved.
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote
// products derived from this software without specific prior written
// permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Intel Corporation is the author of this code, and requests that all
// problem reports or change requests be submitted to it directly at
// http://www.intel.com/software/products/opensource/libraries/num.htm.
//
// History
//==============================================================
// 02/02/00 Initial version
// 02/07/02 Added __libm_fabs entry point to test in case compiler inlines
// 05/20/02 Cleaned up namespace and sf0 syntax
// 02/10/03 Reordered header: .section, .global, .proc, .align
//
// API
//==============================================================
// double fabs  (double x)
//
// Overview of operation
//==============================================================
// returns absolute value of x

// floating-point registers used: 1
// f8, input

.section .text
.global __libm_fabs#

.proc __libm_fabs#
__libm_fabs:
.endp __libm_fabs#

GLOBAL_IEEE754_ENTRY(fabs)

// set invalid or denormal flags and take fault if
// necessary

{ .mfi
      nop.m 999
      fcmp.eq.unc.s0 p6,p7 = f8,f1
      nop.i 999 ;;
}

{ .mfb
      nop.m 999
      fmerge.s       f8 = f0,f8
      br.ret.sptk    b0 ;;
}

GLOBAL_IEEE754_END(fabs)
libm_alias_double_other (__fabs, fabs)
Commit	Line	Data
d5efd131 MF	1	.file "fabs.s"
	2
	3
	4	// Copyright (c) 2000 - 2003, Intel Corporation
	5	// All rights reserved.
	6	//
d5efd131 MF	7	//
	8	// Redistribution and use in source and binary forms, with or without
	9	// modification, are permitted provided that the following conditions are
	10	// met:
	11	//
	12	// * Redistributions of source code must retain the above copyright
	13	// notice, this list of conditions and the following disclaimer.
	14	//
	15	// * Redistributions in binary form must reproduce the above copyright
	16	// notice, this list of conditions and the following disclaimer in the
	17	// documentation and/or other materials provided with the distribution.
	18	//
	19	// * The name of Intel Corporation may not be used to endorse or promote
	20	// products derived from this software without specific prior written
	21	// permission.
	22
0347518d MF	23	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
0347518d MF	24	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
d5efd131	25	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
0347518d	26	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
d5efd131	27	// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0347518d MF	28	// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	29	// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	30	// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
d5efd131	31	// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
0347518d MF	32	// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	33	// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	34	//
d5efd131	35	// Intel Corporation is the author of this code, and requests that all
0347518d	36	// problem reports or change requests be submitted to it directly at
d5efd131 MF	37	// http://www.intel.com/software/products/opensource/libraries/num.htm.
	38	//
	39	// History
	40	//==============================================================
0347518d	41	// 02/02/00 Initial version
d5efd131 MF	42	// 02/07/02 Added __libm_fabs entry point to test in case compiler inlines
	43	// 05/20/02 Cleaned up namespace and sf0 syntax
	44	// 02/10/03 Reordered header: .section, .global, .proc, .align
	45	//
	46	// API
	47	//==============================================================
	48	// double fabs (double x)
	49	//
	50	// Overview of operation
	51	//==============================================================
0347518d	52	// returns absolute value of x
d5efd131 MF	53
	54	// floating-point registers used: 1
	55	// f8, input
	56
	57	.section .text
	58	.global __libm_fabs#
	59
	60	.proc __libm_fabs#
	61	__libm_fabs:
	62	.endp __libm_fabs#
	63
	64	GLOBAL_IEEE754_ENTRY(fabs)
	65
	66	// set invalid or denormal flags and take fault if
	67	// necessary
	68
	69	{ .mfi
	70	nop.m 999
0347518d	71	fcmp.eq.unc.s0 p6,p7 = f8,f1
d5efd131 MF	72	nop.i 999 ;;
	73	}
	74
	75	{ .mfb
	76	nop.m 999
0347518d MF	77	fmerge.s f8 = f0,f8
0347518d MF	78	br.ret.sptk b0 ;;
d5efd131 MF	79	}
	80
	81	GLOBAL_IEEE754_END(fabs)
0609ec0a	82	libm_alias_double_other (__fabs, fabs)