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glibc/sysdeps/ia64/fpu/e_asinl.S
Ulrich Drepper 8da2915d5d Update. 
2001-02-19  Ulrich Drepper  <drepper@redhat.com>

	* libio/iogetline.c: Move return until after last statement.

	* localedata/show-ucs-data.c: Don't show < > for better readability.

	* sysdeps/ia64/fpu/Dist: New file.
	* sysdeps/ia64/fpu/Makefile: New file.
	* sysdeps/ia64/fpu/Versions: New file.
	* sysdeps/ia64/fpu/e_acos.S: New file.
	* sysdeps/ia64/fpu/e_acosf.S: New file.
	* sysdeps/ia64/fpu/e_acosl.S: New file.
	* sysdeps/ia64/fpu/e_asin.S: New file.
	* sysdeps/ia64/fpu/e_asinf.S: New file.
	* sysdeps/ia64/fpu/e_asinl.S: New file.
	* sysdeps/ia64/fpu/e_atan2.S: New file.
	* sysdeps/ia64/fpu/e_atan2f.S: New file.
	* sysdeps/ia64/fpu/e_atan2l.c: New file.
	* sysdeps/ia64/fpu/e_cosh.S: New file.
	* sysdeps/ia64/fpu/e_coshf.S: New file.
	* sysdeps/ia64/fpu/e_coshl.S: New file.
	* sysdeps/ia64/fpu/e_exp.S: New file.
	* sysdeps/ia64/fpu/e_expf.S: New file.
	* sysdeps/ia64/fpu/e_expl.c: New file.
	* sysdeps/ia64/fpu/e_fmod.S: New file.
	* sysdeps/ia64/fpu/e_fmodf.S: New file.
	* sysdeps/ia64/fpu/e_fmodl.S: New file.
	* sysdeps/ia64/fpu/e_hypot.S: New file.
	* sysdeps/ia64/fpu/e_hypotf.S: New file.
	* sysdeps/ia64/fpu/e_hypotl.S: New file.
	* sysdeps/ia64/fpu/e_log.S: New file.
	* sysdeps/ia64/fpu/e_log10.c: New file.
	* sysdeps/ia64/fpu/e_log10f.c: New file.
	* sysdeps/ia64/fpu/e_log10l.c: New file.
	* sysdeps/ia64/fpu/e_logf.S: New file.
	* sysdeps/ia64/fpu/e_logl.c: New file.
	* sysdeps/ia64/fpu/e_pow.S: New file.
	* sysdeps/ia64/fpu/e_powf.S: New file.
	* sysdeps/ia64/fpu/e_powl.S: New file.
	* sysdeps/ia64/fpu/e_rem_pio2.c: New file.
	* sysdeps/ia64/fpu/e_rem_pio2f.c: New file.
	* sysdeps/ia64/fpu/e_remainder.S: New file.
	* sysdeps/ia64/fpu/e_remainderf.S: New file.
	* sysdeps/ia64/fpu/e_remainderl.S: New file.
	* sysdeps/ia64/fpu/e_scalb.S: New file.
	* sysdeps/ia64/fpu/e_scalbf.S: New file.
	* sysdeps/ia64/fpu/e_scalbl.S: New file.
	* sysdeps/ia64/fpu/e_sinh.S: New file.
	* sysdeps/ia64/fpu/e_sinhf.S: New file.
	* sysdeps/ia64/fpu/e_sinhl.S: New file.
	* sysdeps/ia64/fpu/e_sqrt.S: New file.
	* sysdeps/ia64/fpu/e_sqrtf.S: New file.
	* sysdeps/ia64/fpu/e_sqrtl.S: New file.
	* sysdeps/ia64/fpu/k_rem_pio2.c: New file.
	* sysdeps/ia64/fpu/k_rem_pio2f.c: New file.
	* sysdeps/ia64/fpu/k_rem_pio2l.c: New file.
	* sysdeps/ia64/fpu/libm_atan2_reg.S: New file.
	* sysdeps/ia64/fpu/libm_error.c: New file.
	* sysdeps/ia64/fpu/libm_frexp4.S: New file.
	* sysdeps/ia64/fpu/libm_frexp4f.S: New file.
	* sysdeps/ia64/fpu/libm_frexp4l.S: New file.
	* sysdeps/ia64/fpu/libm_reduce.S: New file.
	* sysdeps/ia64/fpu/libm_support.h: New file.
	* sysdeps/ia64/fpu/libm_tan.S: New file.
	* sysdeps/ia64/fpu/s_atan.S: New file.
	* sysdeps/ia64/fpu/s_atanf.S: New file.
	* sysdeps/ia64/fpu/s_atanl.S: New file.
	* sysdeps/ia64/fpu/s_cbrt.S: New file.
	* sysdeps/ia64/fpu/s_cbrtf.S: New file.
	* sysdeps/ia64/fpu/s_cbrtl.S: New file.
	* sysdeps/ia64/fpu/s_ceil.S: New file.
	* sysdeps/ia64/fpu/s_ceilf.S: New file.
	* sysdeps/ia64/fpu/s_ceill.S: New file.
	* sysdeps/ia64/fpu/s_cos.S: New file.
	* sysdeps/ia64/fpu/s_cosf.S: New file.
	* sysdeps/ia64/fpu/s_cosl.S: New file.
	* sysdeps/ia64/fpu/s_expm1.S: New file.
	* sysdeps/ia64/fpu/s_expm1f.S: New file.
	* sysdeps/ia64/fpu/s_expm1l.S: New file.
	* sysdeps/ia64/fpu/s_floor.S: New file.
	* sysdeps/ia64/fpu/s_floorf.S: New file.
	* sysdeps/ia64/fpu/s_floorl.S: New file.
	* sysdeps/ia64/fpu/s_frexp.c: New file.
	* sysdeps/ia64/fpu/s_frexpf.c: New file.
	* sysdeps/ia64/fpu/s_frexpl.c: New file.
	* sysdeps/ia64/fpu/s_ilogb.S: New file.
	* sysdeps/ia64/fpu/s_ilogbf.S: New file.
	* sysdeps/ia64/fpu/s_ilogbl.S: New file.
	* sysdeps/ia64/fpu/s_ldexp.S: New file.
	* sysdeps/ia64/fpu/s_ldexpf.S: New file.
	* sysdeps/ia64/fpu/s_ldexpl.S: New file.
	* sysdeps/ia64/fpu/s_log1p.S: New file.
	* sysdeps/ia64/fpu/s_log1pf.S: New file.
	* sysdeps/ia64/fpu/s_log1pl.S: New file.
	* sysdeps/ia64/fpu/s_logb.S: New file.
	* sysdeps/ia64/fpu/s_logbf.S: New file.
	* sysdeps/ia64/fpu/s_logbl.S: New file.
	* sysdeps/ia64/fpu/s_matherrf.c: New file.
	* sysdeps/ia64/fpu/s_matherrl.c: New file.
	* sysdeps/ia64/fpu/s_modf.S: New file.
	* sysdeps/ia64/fpu/s_modff.S: New file.
	* sysdeps/ia64/fpu/s_modfl.S: New file.
	* sysdeps/ia64/fpu/s_nearbyint.S: New file.
	* sysdeps/ia64/fpu/s_nearbyintf.S: New file.
	* sysdeps/ia64/fpu/s_nearbyintl.S: New file.
	* sysdeps/ia64/fpu/s_rint.S: New file.
	* sysdeps/ia64/fpu/s_rintf.S: New file.
	* sysdeps/ia64/fpu/s_rintl.S: New file.
	* sysdeps/ia64/fpu/s_round.S: New file.
	* sysdeps/ia64/fpu/s_roundf.S: New file.
	* sysdeps/ia64/fpu/s_roundl.S: New file.
	* sysdeps/ia64/fpu/s_scalbn.S: New file.
	* sysdeps/ia64/fpu/s_scalbnf.S: New file.
	* sysdeps/ia64/fpu/s_scalbnl.S: New file.
	* sysdeps/ia64/fpu/s_significand.S: New file.
	* sysdeps/ia64/fpu/s_significandf.S: New file.
	* sysdeps/ia64/fpu/s_significandl.S: New file.
	* sysdeps/ia64/fpu/s_sin.c: New file.
	* sysdeps/ia64/fpu/s_sincos.c: New file.
	* sysdeps/ia64/fpu/s_sincosf.c: New file.
	* sysdeps/ia64/fpu/s_sincosl.c: New file.
	* sysdeps/ia64/fpu/s_sinf.c: New file.
	* sysdeps/ia64/fpu/s_sinl.c: New file.
	* sysdeps/ia64/fpu/s_tan.S: New file.
	* sysdeps/ia64/fpu/s_tanf.S: New file.
	* sysdeps/ia64/fpu/s_tanl.S: New file.
	* sysdeps/ia64/fpu/s_trunc.S: New file.
	* sysdeps/ia64/fpu/s_truncf.S: New file.
	* sysdeps/ia64/fpu/s_truncl.S: New file.
	* sysdeps/ia64/fpu/w_acos.c: New file.
	* sysdeps/ia64/fpu/w_acosf.c: New file.
	* sysdeps/ia64/fpu/w_acosl.c: New file.
	* sysdeps/ia64/fpu/w_asin.c: New file.
	* sysdeps/ia64/fpu/w_asinf.c: New file.
	* sysdeps/ia64/fpu/w_asinl.c: New file.
	* sysdeps/ia64/fpu/w_atan2.c: New file.
	* sysdeps/ia64/fpu/w_atan2f.c: New file.
	* sysdeps/ia64/fpu/w_atan2l.c: New file.
	* sysdeps/ia64/fpu/w_cosh.c: New file.
	* sysdeps/ia64/fpu/w_coshf.c: New file.
	* sysdeps/ia64/fpu/w_coshl.c: New file.
	* sysdeps/ia64/fpu/w_exp.c: New file.
	* sysdeps/ia64/fpu/w_expf.c: New file.
	* sysdeps/ia64/fpu/w_fmod.c: New file.
	* sysdeps/ia64/fpu/w_fmodf.c: New file.
	* sysdeps/ia64/fpu/w_fmodl.c: New file.
	* sysdeps/ia64/fpu/w_hypot.c: New file.
	* sysdeps/ia64/fpu/w_hypotf.c: New file.
	* sysdeps/ia64/fpu/w_hypotl.c: New file.
	* sysdeps/ia64/fpu/w_log.c: New file.
	* sysdeps/ia64/fpu/w_log10.c: New file.
	* sysdeps/ia64/fpu/w_log10f.c: New file.
	* sysdeps/ia64/fpu/w_log10l.c: New file.
	* sysdeps/ia64/fpu/w_logf.c: New file.
	* sysdeps/ia64/fpu/w_logl.c: New file.
	* sysdeps/ia64/fpu/w_pow.c: New file.
	* sysdeps/ia64/fpu/w_powf.c: New file.
	* sysdeps/ia64/fpu/w_powl.c: New file.
	* sysdeps/ia64/fpu/w_remainder.c: New file.
	* sysdeps/ia64/fpu/w_remainderf.c: New file.
	* sysdeps/ia64/fpu/w_remainderl.c: New file.
	* sysdeps/ia64/fpu/w_scalb.c: New file.
	* sysdeps/ia64/fpu/w_scalbf.c: New file.
	* sysdeps/ia64/fpu/w_scalbl.c: New file.
	* sysdeps/ia64/fpu/w_sqrt.c: New file.
	* sysdeps/ia64/fpu/w_sqrtf.c: New file.
	* sysdeps/ia64/fpu/w_sqrtl.c: New file.
	* sysdeps/ia64/fpu/libm-test-ulps: Adjust for long double
	implementation.
	* sysdeps/ia64/fpu/bits/mathdef.h: Correct float_t and double_t types.
	Change FP_ILOGBNAN for new implementation.
	* Verions.def: Add 2.2.3 versions.
2001-02-19 09:09:18 +00:00

778 lines
18 KiB
ArmAsm
Raw Blame History

.file "asinl.s"
// Copyright (c) 2000, 2001, Intel Corporation
// All rights reserved.
//
// Contributed 2/2/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story,
// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation.
//
// WARRANTY DISCLAIMER
//
// 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://developer.intel.com/opensource.
//
// History
//==============================================================
// 2/02/00 Initial version
// 4/04/00 Unwind support added
// 8/15/00 Bundle added after call to __libm_error_support to properly
// set [the previously overwritten] GR_Parameter_RESULT.
//
// API
//==============================================================
// long double = asinl(long double)
// input floating point f8
// output floating point f8
//
// Registers used
//==============================================================
//
// predicate registers used:
// p6 -> p12
//
// floating-point registers used:
// f8 has input, then output
// f32 -> f87, f8 -> f13, f32 -> f87
//
// general registers used:
// r32 -> r47
//
// Overview of operation
//==============================================================
// There are three paths
// 1. |x| < 2^-40 ASIN_TINY
// 2. 2^-40 <= |x| < 1/4 ASIN_POLY
// 3. 1/4 <= |x| < 1 ASIN_ATAN
#include "libm_support.h"
// Assembly macros
//==============================================================
FR_RESULT = f10
FR_X = f8
FR_Y = f1
asin_P79 = f32
asin_P59 = f33
asin_P39 = f34
asin_P19 = f35
asin_P810 = f36
asin_P610 = f37
asin_P410 = f38
asin_P210 = f39
asin_A1 = f41
asin_A2 = f42
asin_A3 = f43
asin_A4 = f44
asin_A5 = f45
asin_A6 = f46
asin_A7 = f47
asin_A8 = f48
asin_A9 = f49
asin_A10 = f50
asin_X2 = f51
asin_X4 = f52
asin_B = f53
asin_Bb = f54
asin_C = f55
asin_Cc = f56
asin_D = f57
asin_W = f58
asin_Ww = f59
asin_y0 = f60
asin_y1 = f61
asin_y2 = f62
asin_H = f63
asin_Hh = f64
asin_t1 = f65
asin_t2 = f66
asin_t3 = f67
asin_t4 = f68
asin_t5 = f69
asin_Pseries = f70
asin_NORM_f8 = f71
asin_ABS_NORM_f8 = f72
asin_2m100 = f73
asin_P1P2 = f74
asin_HALF = f75
asin_1mD = f76
asin_1mB = f77
asin_1mBmC = f78
asin_S = f79
asin_BmWW = f80
asin_BmWWpb = f81
asin_2W = f82
asin_1d2W = f83
asin_Dd = f84
asin_XWw = f85
asin_low = f86
asin_pi_by_2 = f87
asin_pi_by_2_lo = f88
asin_GR_17_ones = r33
asin_GR_16_ones = r34
asin_GR_signexp_f8 = r35
asin_GR_exp = r36
asin_GR_true_exp = r37
asin_GR_ff9b = r38
GR_SAVE_B0 = r39
GR_SAVE_SP = r40
GR_SAVE_PFS = r33
// r33 can be used safely.
// r40 is address of table of coefficients
// Later it is used to save sp across calls
GR_SAVE_GP = r41
asin_GR_fffe = r42
asin_GR_retval = r43
GR_Parameter_X = r44
GR_Parameter_Y = r45
GR_Parameter_RESULT = r46
GR_Parameter_TAG = r47
// 2^-40:
// A true exponent of -40 is
// : -40 + register_bias
// : -28 + ffff = ffd7
// A true exponent of -100 is
// : -100 + register_bias
// : -64 + ffff = ff9b
// Data tables
//==============================================================
#ifdef _LIBC
.rodata
#else
.data
#endif
.align 16
asin_coefficients:
ASM_TYPE_DIRECTIVE(asin_coefficients,@object)
data8 0xBB08911F2013961E, 0x00003FF8 // A10
data8 0x981F1095A23A87D3, 0x00003FF8 // A9
data8 0xBDF09C6C4177BCC6, 0x00003FF8 // A8
data8 0xE4C3A60B049ACCEA, 0x00003FF8 // A7
data8 0x8E2789F4E8A8F1AD, 0x00003FF9 // A6
data8 0xB745D09B2B0E850B, 0x00003FF9 // A5
data8 0xF8E38E3BC4C50920, 0x00003FF9 // A4
data8 0xB6DB6DB6D89FCD81, 0x00003FFA // A3
data8 0x99999999999AF376, 0x00003FFB // A2
data8 0xAAAAAAAAAAAAAA71, 0x00003FFC // A1
data8 0xc90fdaa22168c234, 0x00003FFF // pi_by_2_hi
data8 0xc4c6628b80dc1cd1, 0x00003FBF // pi_by_2_lo
ASM_SIZE_DIRECTIVE(asin_coefficients)
.align 32
.global asinl#
.section .text
.proc asinl#
.align 32
asinl:
{ .mfi
alloc r32 = ar.pfs,1,11,4,0
(p0) fnorm asin_NORM_f8 = f8
(p0) mov asin_GR_17_ones = 0x1ffff
}
{ .mii
(p0) mov asin_GR_16_ones = 0xffff
(p0) mov asin_GR_ff9b = 0xff9b ;;
nop.i 999
}
{ .mmi
(p0) setf.exp asin_2m100 = asin_GR_ff9b
(p0) addl r40 = @ltoff(asin_coefficients), gp
nop.i 999
}
;;
{ .mmi
ld8 r40 = [r40]
nop.m 999
nop.i 999
}
;;
// Load the constants
{ .mmi
(p0) ldfe asin_A10 = [r40],16 ;;
(p0) ldfe asin_A9 = [r40],16
nop.i 999 ;;
}
{ .mmi
(p0) ldfe asin_A8 = [r40],16 ;;
(p0) ldfe asin_A7 = [r40],16
nop.i 999 ;;
}
{ .mmi
(p0) ldfe asin_A6 = [r40],16 ;;
(p0) getf.exp asin_GR_signexp_f8 = asin_NORM_f8
nop.i 999
}
{ .mmi
(p0) ldfe asin_A5 = [r40],16 ;;
(p0) ldfe asin_A4 = [r40],16
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fmerge.s asin_ABS_NORM_f8 = f0, asin_NORM_f8
(p0) and asin_GR_exp = asin_GR_signexp_f8, asin_GR_17_ones ;;
}
// case 1: |x| < 2^-40 ==> p6 (includes x = +-0)
// case 2: 2^-40 <= |x| < 2^-2 ==> p8
// case 3: 2^-2 <= |x| < 1 ==> p9
// case 4: 1 <= |x| ==> p11
// In case 4, we pick up the special case x = +-1 and return +-pi/2
{ .mii
(p0) ldfe asin_A3 = [r40],16
(p0) sub asin_GR_true_exp = asin_GR_exp, asin_GR_16_ones ;;
(p0) cmp.ge.unc p6, p7 = -41, asin_GR_true_exp ;;
}
{ .mii
(p0) ldfe asin_A2 = [r40],16
(p7) cmp.ge.unc p8, p9 = -3, asin_GR_true_exp ;;
(p9) cmp.ge.unc p10, p11 = -1, asin_GR_true_exp
}
{ .mmi
(p0) ldfe asin_A1 = [r40],16 ;;
(p0) ldfe asin_pi_by_2 = [r40],16
nop.i 999
}
// case 4: |x| >= 1
{ .mib
nop.m 999
nop.i 999
(p11) br.spnt L(ASIN_ERROR_RETURN) ;;
}
// case 1: |x| < 2^-40
{ .mfb
nop.m 999
(p6) fma.s0 f8 = asin_2m100,f8,f8
(p6) br.ret.spnt b0 ;;
}
// case 2: 2^-40 <= |x| < 2^-2 ==> p8
{ .mfi
nop.m 999
(p8) fma.s1 asin_X2 = f8,f8, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_X4 = asin_X2,asin_X2, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P810 = asin_X4, asin_A10, asin_A8
nop.i 999
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P79 = asin_X4, asin_A9, asin_A7
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P610 = asin_X4, asin_P810, asin_A6
nop.i 999
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P59 = asin_X4, asin_P79, asin_A5
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P410 = asin_X4, asin_P610, asin_A4
nop.i 999
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P39 = asin_X4, asin_P59, asin_A3
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P210 = asin_X4, asin_P410, asin_A2
nop.i 999
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P19 = asin_X4, asin_P39, asin_A1
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P1P2 = asin_X2, asin_P210, asin_P19
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p8) fma.s1 asin_P1P2 = asin_X2, asin_P1P2, f0
nop.i 999 ;;
}
{ .mfb
nop.m 999
(p8) fma.s0 f8 = asin_NORM_f8, asin_P1P2, asin_NORM_f8
(p8) br.ret.spnt b0 ;;
}
// case 3: 2^-2 <= |x| < 1
// 1- X*X is computed as B + b
// Step 1.1: Get B and b
// atan2 will return
// f8 = Z_hi
// f10 = Z_lo
// f11 = s_lo
{ .mfi
(p0) mov asin_GR_fffe = 0xfffe
(p0) fmerge.se f8 = asin_ABS_NORM_f8, asin_ABS_NORM_f8
nop.i 0
};;
{ .mmf
nop.m 0
(p0) setf.exp asin_HALF = asin_GR_fffe
(p0) fmerge.se f12 = asin_NORM_f8, asin_NORM_f8 ;;
}
{ .mfi
nop.m 999
(p0) fcmp.lt.unc.s1 p6,p7 = asin_ABS_NORM_f8, asin_HALF
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p7) fma.s1 asin_D = f1,f1,asin_ABS_NORM_f8
nop.i 999
}
{ .mfi
nop.m 999
(p7) fms.s1 asin_C = f1,f1,asin_ABS_NORM_f8
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p7) fma.s1 asin_B = asin_C, asin_D, f0
nop.i 999
}
{ .mfi
nop.m 999
(p7) fms.s1 asin_1mD = f1,f1,asin_D
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p7) fma.s1 asin_Dd = asin_1mD,f1, asin_ABS_NORM_f8
nop.i 999
}
{ .mfi
nop.m 999
(p7) fms.s1 asin_Bb = asin_C, asin_D, asin_B
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p7) fma.s1 asin_Bb = asin_C, asin_Dd, asin_Bb
nop.i 999
}
{ .mfi
nop.m 999
(p6) fma.s1 asin_C = asin_ABS_NORM_f8, asin_ABS_NORM_f8, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p6) fms.s1 asin_B = f1, f1, asin_C
nop.i 999
}
{ .mfi
nop.m 999
(p6) fms.s1 asin_Cc = asin_ABS_NORM_f8, asin_ABS_NORM_f8, asin_C
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_Hh = asin_HALF, asin_B, f0
nop.i 999
}
{ .mfi
nop.m 999
(p6) fms.s1 asin_1mB = f1, f1, asin_B
nop.i 999 ;;
}
// Step 1.2:
// sqrt(B + b) is computed as W + w
// Get W
{ .mfi
nop.m 999
(p0) frsqrta.s1 asin_y0,p8 = asin_B
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p6) fms.s1 asin_1mBmC = asin_1mB, f1, asin_C
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_t1 = asin_y0, asin_y0, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p6) fms.s1 asin_Bb = asin_1mBmC, f1, asin_Cc
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fnma.s1 asin_t2 = asin_t1, asin_Hh, asin_HALF
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_y1 = asin_t2, asin_y0, asin_y0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_t3 = asin_y1, asin_Hh, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fnma.s1 asin_t4 = asin_t3, asin_y1, asin_HALF
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_y2 = asin_t4, asin_y1, asin_y1
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_S = asin_B, asin_y2, f0
nop.i 999
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_H = asin_y2, asin_HALF, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_t5 = asin_Hh, asin_y2, f0
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fnma.s1 asin_Dd = asin_S, asin_S, asin_B
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_W = asin_Dd, asin_H, asin_S
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_2W = asin_W, f1, asin_W
nop.i 999
}
// Step 1.3
// Get w
{ .mfi
nop.m 999
(p0) fnma.s1 asin_BmWW = asin_W, asin_W, asin_B
nop.i 999 ;;
}
// Step 2
// asin(x) = atan2(X,sqrt(1-X*X))
// = atan2(X, W) -Xw
// corr = Xw
// asin(x) = Z_hi + (s_lo*Z_lo - corr)
// Call atan2(X, W)
// Save W in f9
// Save X in f12
// Save w in f13
{ .mfi
nop.m 999
(p0) fmerge.se f9 = asin_W, asin_W
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_BmWWpb = asin_BmWW, f1, asin_Bb
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) frcpa.s1 asin_1d2W,p9 = f1, asin_2W
nop.i 999 ;;
}
{ .mfi
nop.m 999
(p0) fma.s1 asin_Ww = asin_BmWWpb, asin_1d2W, f0
nop.i 999 ;;
}
.endp asinl
ASM_SIZE_DIRECTIVE(asinl)
.proc __libm_callout
__libm_callout:
.prologue
{ .mfi
nop.m 0
nop.f 0
.save ar.pfs,GR_SAVE_PFS
mov GR_SAVE_PFS=ar.pfs // Save ar.pfs
};;
{ .mfi
mov GR_SAVE_GP=gp // Save gp
nop.f 0
.save b0, GR_SAVE_B0
mov GR_SAVE_B0=b0 // Save b0
}
.body
{.mfb
nop.m 0
(p0) fmerge.se f13 = asin_Ww, asin_Ww
(p0) br.call.sptk.many b0=__libm_atan2_reg#
};;
{ .mfi
mov gp = GR_SAVE_GP // Restore gp
(p0) fma.s1 asin_XWw = asin_ABS_NORM_f8,f13,f0
mov b0 = GR_SAVE_B0 // Restore return address
};;
// asin_XWw = Xw = corr
// asin_low = (s_lo * Z_lo - corr)
// f8 = Z_hi + (s_lo * Z_lo - corr)
{ .mfi
nop.m 999
(p0) fms.s1 asin_low = f11, f10, asin_XWw
mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs
};;
{ .mfi
nop.m 999
(p0) fma.s0 f8 = f8, f1, asin_low
nop.i 999 ;;
}
{ .mfb
nop.m 999
(p0) fmerge.s f8 = f12,f8
(p0) br.ret.sptk b0 ;;
}
.endp __libm_callout
ASM_SIZE_DIRECTIVE(__libm_callout)
.proc SPECIAL
SPECIAL:
L(ASIN_ERROR_RETURN):
// If X is 1, return (sign of X)pi/2
{ .mfi
nop.m 999
(p0) fcmp.eq.unc p6,p7 = asin_ABS_NORM_f8,f1
nop.i 999 ;;
}
{ .mfb
(p6) ldfe asin_pi_by_2_lo = [r40]
(p6) fmerge.s asin_pi_by_2 = f8,asin_pi_by_2
nop.b 0;;
}
// If X is a NAN, leave
// qnan snan inf norm unorm 0 -+
// 1 1 0 0 0 0 11
{ .mfb
nop.m 999
(p6) fma.s0 f8 = f8,asin_pi_by_2_lo,asin_pi_by_2
(p6) br.ret.spnt b0
}
{ .mfi
nop.m 999
(p0) fclass.m.unc p12,p0 = f8, 0xc3
nop.i 999 ;;
}
{ .mfb
nop.m 999
(p12) fma.s0 f8 = f8,f1,f0
(p12) br.ret.spnt b0 ;;
}
{ .mfi
(p0) mov GR_Parameter_TAG = 60
(p0) frcpa f10, p6 = f0, f0
nop.i 0
};;
.endp SPECIAL
ASM_SIZE_DIRECTIVE(SPECIAL)
.proc __libm_error_region
__libm_error_region:
.prologue
{ .mfi
add GR_Parameter_Y=-32,sp // Parameter 2 value
nop.f 0
.save ar.pfs,GR_SAVE_PFS
mov GR_SAVE_PFS=ar.pfs // Save ar.pfs
}
{ .mfi
.fframe 64
add sp=-64,sp // Create new stack
nop.f 0
mov GR_SAVE_GP=gp // Save gp
};;
{ .mmi
stfe [GR_Parameter_Y] = FR_Y,16 // Store Parameter 2 on stack
add GR_Parameter_X = 16,sp // Parameter 1 address
.save b0, GR_SAVE_B0
mov GR_SAVE_B0=b0 // Save b0
};;
.body
{ .mib
stfe [GR_Parameter_X] = FR_X // Store Parameter 1 on stack
add GR_Parameter_RESULT = 0,GR_Parameter_Y
nop.b 0 // Parameter 3 address
}
{ .mib
stfe [GR_Parameter_Y] = FR_RESULT // Store Parameter 3 on stack
add GR_Parameter_Y = -16,GR_Parameter_Y
br.call.sptk b0=__libm_error_support# // Call error handling function
};;
{ .mmi
nop.m 0
nop.m 0
add GR_Parameter_RESULT = 48,sp
};;
{ .mmi
ldfe f8 = [GR_Parameter_RESULT] // Get return result off stack
.restore sp
add sp = 64,sp // Restore stack pointer
mov b0 = GR_SAVE_B0 // Restore return address
};;
{ .mib
mov gp = GR_SAVE_GP // Restore gp
mov ar.pfs = GR_SAVE_PFS // Restore ar.pfs
br.ret.sptk b0 // Return
};;
.endp __libm_error_region
ASM_SIZE_DIRECTIVE(__libm_error_region)
.type __libm_error_support#,@function
.global __libm_error_support#
.type __libm_atan2_reg#,@function
.global __libm_atan2_reg#
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