mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
3a327316ad
Continuing the preparation for additional _FloatN / _FloatNx aliases, this patch makes long double functions in sysdeps/ia64/fpu use libm_alias_ldouble macros, so that they can have _Float64x aliases added in future. Most ia64 libm functions are defined using ia64-specific macros in libm-symbols.h. These are left unchanged, with libm-alias-ldouble.h included from libm-symbols.h (and the expectation that other libm-alias-*.h headers will be included from there as well in future), and libm_alias_ldouble_other then being used in most cases to define aliases for any additional types (currently the empty set). Functions that used weak_alias are converted to use libm_alias_ldouble. Tested (compilation only) with build-many-glibcs.py for ia64, including that installed stripped shared libraries are unchanged by the patch. * sysdeps/ia64/fpu/libm-symbols.h: Include <libm-alias-ldouble.h>. * sysdeps/ia64/fpu/e_acoshl.S (acoshl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/e_acosl.S (acosl): Likewise. * sysdeps/ia64/fpu/e_asinl.S (asinl): Likewise. * sysdeps/ia64/fpu/e_atanhl.S (atanhl): Likewise. * sysdeps/ia64/fpu/e_coshl.S (coshl): Likewise. * sysdeps/ia64/fpu/e_exp10l.S (exp10l): Likewise. * sysdeps/ia64/fpu/e_exp2l.S (exp2l): Likewise. * sysdeps/ia64/fpu/e_fmodl.S (fmodl): Likewise. * sysdeps/ia64/fpu/e_hypotl.S (hypotl): Likewise. * sysdeps/ia64/fpu/e_lgammal_r.c (lgammal_r): Define using libm_alias_ldouble_r. * sysdeps/ia64/fpu/e_log2l.S (log2l): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/e_logl.S (logl): Likewise. (log10l): Likewise. * sysdeps/ia64/fpu/e_powl.S (powl): Likewise. * sysdeps/ia64/fpu/e_remainderl.S (remainderl): Likewise. * sysdeps/ia64/fpu/e_sinhl.S (sinhl): Likewise. * sysdeps/ia64/fpu/e_sqrtl.S (sqrtl): Likewise. * sysdeps/ia64/fpu/libm_sincosl.S (sincosl): Likewise. * sysdeps/ia64/fpu/s_asinhl.S (asinhl): Likewise. * sysdeps/ia64/fpu/s_atanl.S (atanl): Likewise. (atan2l): Likewise. * sysdeps/ia64/fpu/s_cbrtl.S (cbrtl): Likewise. * sysdeps/ia64/fpu/s_ceill.S (ceill): Likewise. * sysdeps/ia64/fpu/s_copysign.S (copysignl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_cosl.S (sinl): Use libm_alias_ldouble_other. (cosl): Likewise. * sysdeps/ia64/fpu/s_erfcl.S (erfcl): Likewise. * sysdeps/ia64/fpu/s_erfl.S (erfl): Likewise. * sysdeps/ia64/fpu/s_expm1l.S (expm1l): Likewise. (expl): Likewise. * sysdeps/ia64/fpu/s_fabsl.S (fabsl): Likewise. * sysdeps/ia64/fpu/s_fdiml.S (fdiml): Likewise. * sysdeps/ia64/fpu/s_floorl.S (floorl): Likewise. * sysdeps/ia64/fpu/s_fmal.S (fmal): Likewise. * sysdeps/ia64/fpu/s_fmaxl.S (fmaxl): Likewise. * sysdeps/ia64/fpu/s_frexpl.c (frexpl): Likewise. * sysdeps/ia64/fpu/s_ldexpl.c (ldexpl): Likewise. * sysdeps/ia64/fpu/s_log1pl.S (log1pl): Likewise. * sysdeps/ia64/fpu/s_logbl.S (logbl): Likewise. * sysdeps/ia64/fpu/s_modfl.S (modfl): Likewise. * sysdeps/ia64/fpu/s_nearbyintl.S (nearbyintl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_nextafterl.S (nextafterl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/s_rintl.S (rintl): Likewise. * sysdeps/ia64/fpu/s_roundl.S (roundl): Likewise. * sysdeps/ia64/fpu/s_scalbnl.c (scalbnl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_tanhl.S (tanhl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/s_tanl.S (tanl): Likewise. * sysdeps/ia64/fpu/s_truncl.S (truncl): Likewise. * sysdeps/ia64/fpu/w_lgammal_main.c [BUILD_LGAMMA && !USE_AS_COMPAT] (lgammal): Likewise. * sysdeps/ia64/fpu/w_tgammal_compat.S (tgammal): Likewise.
477 lines
9.8 KiB
ArmAsm
477 lines
9.8 KiB
ArmAsm
.file "hypotl.s"
|
|
|
|
|
|
// Copyright (c) 2000 - 2003, Intel Corporation
|
|
// All rights reserved.
|
|
//
|
|
// Contributed 2000 by the Intel Numerics Group, Intel Corporation
|
|
//
|
|
// 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 hand-optimized
|
|
// 04/04/00 Unwind support added
|
|
// 06/20/00 new version
|
|
// 08/15/00 Bundle added after call to __libm_error_support to properly
|
|
// set [the previously overwritten] GR_Parameter_RESULT.
|
|
// 05/20/02 Cleaned up namespace and sf0 syntax
|
|
// 02/10/03 Reordered header: .section, .global, .proc, .align
|
|
//
|
|
//*********************************************************************
|
|
// ___________
|
|
// Function: hypotl(x,y) = |(x^2 + y^2) = for double extended values
|
|
// x and y
|
|
// Also provides cabsl functionality.
|
|
//
|
|
//*********************************************************************
|
|
//
|
|
// Resources Used:
|
|
//
|
|
// Floating-Point Registers: f8 (Input and Return Value)
|
|
// f9 (Input)
|
|
// f6 -f15, f32-f34
|
|
//
|
|
// General Purpose Registers:
|
|
// r2-r3 (Scratch)
|
|
// r32-r36 (Locals)
|
|
// r37-r40 (Used to pass arguments to error handling routine)
|
|
//
|
|
// Predicate Registers: p6 - p10
|
|
//
|
|
//*********************************************************************
|
|
//
|
|
// IEEE Special Conditions:
|
|
//
|
|
// All faults and exceptions should be raised correctly.
|
|
// Overflow can occur.
|
|
// hypotl(Infinity and anything) = +Infinity
|
|
// hypotl(QNaN and anything) = QNaN
|
|
// hypotl(SNaN and anything ) = QNaN
|
|
//
|
|
//*********************************************************************
|
|
//
|
|
// Implementation:
|
|
// x2 = x * x in double-extended
|
|
// y2 = y * y in double-extended
|
|
// temp = x2 + y2 in double-extended
|
|
// sqrt(temp) rounded to double extended
|
|
//
|
|
//*********************************************************************
|
|
|
|
GR_SAVE_PFS = r33
|
|
GR_SAVE_B0 = r34
|
|
GR_SAVE_GP = r35
|
|
GR_Parameter_X = r36
|
|
GR_Parameter_Y = r37
|
|
GR_Parameter_RESULT = r38
|
|
GR_Parameter_TAG = r39
|
|
|
|
FR_X = f32
|
|
FR_Y = f33
|
|
FR_RESULT = f8
|
|
|
|
.section .text
|
|
|
|
LOCAL_LIBM_ENTRY(cabsl)
|
|
LOCAL_LIBM_END(cabsl)
|
|
|
|
GLOBAL_IEEE754_ENTRY(hypotl)
|
|
{.mfi
|
|
alloc r32= ar.pfs,0,4,4,0
|
|
// Compute x*x
|
|
fma.s1 f10=f8,f8,f0
|
|
// r2=bias-1
|
|
mov r2=0xfffe
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// y*y
|
|
fma.s1 f11=f9,f9,f0
|
|
nop.i 0;;
|
|
}
|
|
|
|
{ .mfi
|
|
nop.m 0
|
|
// Check if x is an Inf - if so return Inf even
|
|
// if y is a NaN (C9X)
|
|
fclass.m.unc p7, p6 = f8, 0x023
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// if possible overflow, copy f8 to f32
|
|
// set Denormal, if necessary
|
|
// (p8)
|
|
fma.s0 f32=f8,f1,f0
|
|
nop.i 0;;
|
|
}
|
|
{ .mfi
|
|
nop.m 0
|
|
// Check if y is an Inf - if so return Inf even
|
|
// if x is a NaN (C9X)
|
|
fclass.m.unc p8, p9 = f9, 0x023
|
|
nop.i 0
|
|
}
|
|
{ .mfi
|
|
nop.m 999
|
|
// For x=inf, multiply y by 1 to raise invalid on y an SNaN
|
|
// (p7) fma.s0 f9=f9,f1,f0
|
|
// copy f9 to f33; set Denormal, if necessary
|
|
fma.s0 f33=f9,f1,f0
|
|
nop.i 0;;
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// is y Zero ?
|
|
(p6) fclass.m p6,p0=f9,0x7
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
// f7=0.5
|
|
setf.exp f7=r2
|
|
// a=x2+y2
|
|
fma.s1 f12=f10,f1,f11
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
mov r2=0x408c //0000
|
|
// dx=x*x-x2
|
|
fms.s1 f13=f8,f8,f10
|
|
nop.i 0;;
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// is x Zero ?
|
|
(p9) fclass.m p9,p0=f8,0x7
|
|
shl r2=r2,16
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// dy=y*y-y2
|
|
fms.s1 f14=f9,f9,f11
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// x not NaN ?
|
|
(p6) fclass.m p7,p0=f8,0x3f
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// f6=2
|
|
fma.s1 f6=f1,f1,f1
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// f34=min(x2,y2)
|
|
famin.s1 f34=f10,f11
|
|
nop.i 0
|
|
}
|
|
{.mfb
|
|
nop.m 0
|
|
// f10=max(x2,y2)
|
|
famax.s1 f10=f11,f10
|
|
nop.b 0;; //
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// y not NaN ?
|
|
(p9) fclass.m p8,p0=f9,0x3f
|
|
nop.i 0;;
|
|
}
|
|
{.mfb
|
|
// f9=35/8
|
|
setf.s f9=r2
|
|
// if f8=Infinity or f9=Zero, return |f8|
|
|
(p7) fmerge.s f8=f0,f32
|
|
(p7) br.ret.spnt b0;;
|
|
}
|
|
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// z0=frsqrta(a)
|
|
frsqrta.s1 f8,p6=f12
|
|
nop.i 0;;
|
|
}
|
|
{ .mfi
|
|
nop.m 0
|
|
// Identify Natvals, Infs, NaNs, and Zeros
|
|
// and return result
|
|
fclass.m.unc p7, p0 = f12, 0x1E7
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
// get exponent of x^2+y^2
|
|
getf.exp r3=f12
|
|
// dxy=dx+dy
|
|
fma.s1 f13=f13,f1,f14
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfb
|
|
// 2*emax-2
|
|
mov r2=0x17ffb
|
|
// if f9=Infinity or f8=Zero, return |f9|
|
|
(p8) fmerge.s f8=f0,f33
|
|
(p8) br.ret.spnt b0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// dd=a-max(x2,y2)
|
|
fnma.s1 f10=f10,f1,f12
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// S0=a*z0
|
|
(p6) fma.s1 f14=f12,f8,f0
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// H0=0.5*z0
|
|
(p6) fma.s1 f15=f8,f7,f0
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfb
|
|
nop.m 0
|
|
// if special case, set f8
|
|
(p7) mov f8=f12
|
|
(p7) br.ret.spnt b0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// da=min(x2,y2)-dd
|
|
fnma.s1 f10=f10,f1,f34
|
|
nop.i 0;;
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// f6=5/2
|
|
fma.s1 f6=f7,f1,f6
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// f11=3/2
|
|
fma.s1 f11=f7,f1,f1
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// d=0.5-S0*H0
|
|
(p6) fnma.s1 f7=f14,f15,f7
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// P1=3/2*d+1
|
|
(p6) fma.s1 f11=f11,f7,f1
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// P2=35/8*d+5/2
|
|
(p6) fma.s1 f9=f9,f7,f6
|
|
nop.i 0;;
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// d2=d*d
|
|
(p6) fma.s1 f34=f7,f7,f0
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// T0=d*S0
|
|
(p6) fma.s1 f6=f7,f14,f0
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// G0=d*H0
|
|
(p6) fma.s1 f7=f7,f15,f0
|
|
nop.i 0;;
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// P=d2*P2+P1
|
|
(p6) fma.s1 f11=f34,f9,f11
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// S1=p*T0+S0
|
|
(p6) fma.s1 f14=f11,f6,f14
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
nop.m 0
|
|
// H1=p*G0+H0
|
|
(p6) fma.s1 f15=f11,f7,f15
|
|
nop.i 0;;
|
|
}
|
|
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// e1=a-S1*S1
|
|
(p6) fnma.s1 f7=f14,f14,f12
|
|
nop.i 0
|
|
}
|
|
{.mfi
|
|
// Is x^2 + y^2 well less than the overflow
|
|
// threshold?
|
|
(p6) cmp.lt.unc p7, p8 = r3,r2
|
|
// c=dxy+da
|
|
(p6) fma.s1 f13=f13,f1,f10
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfi
|
|
nop.m 0
|
|
// e=e1+c
|
|
(p6) fma.s1 f13=f7,f1,f13
|
|
nop.i 0;;
|
|
}
|
|
|
|
{.mfb
|
|
nop.m 0
|
|
// S=e*H1+S1
|
|
fma.s0 f8=f13,f15,f14
|
|
// No overflow in this case
|
|
(p7) br.ret.sptk b0;;
|
|
}
|
|
|
|
{ .mfi
|
|
nop.m 0
|
|
(p8) fsetc.s2 0x7F,0x42
|
|
// Possible overflow path, must detect by
|
|
// Setting widest range exponent with prevailing
|
|
// rounding mode.
|
|
nop.i 0 ;;
|
|
}
|
|
|
|
|
|
{ .mfi
|
|
// bias+0x4000 (bias+EMAX+1)
|
|
(p8) mov r2=0x13fff
|
|
// S=e*H1+S1
|
|
(p8) fma.s2 f12=f13,f15,f14
|
|
nop.i 0 ;;
|
|
}
|
|
{ .mfi
|
|
(p8) setf.exp f11 = r2
|
|
(p8) fsetc.s2 0x7F,0x40
|
|
// Restore Original Mode in S2
|
|
nop.i 0 ;;
|
|
}
|
|
{ .mfi
|
|
nop.m 0
|
|
(p8) fcmp.lt.unc.s1 p9, p10 = f12, f11
|
|
nop.i 0 ;;
|
|
}
|
|
{ .mib
|
|
nop.m 0
|
|
mov GR_Parameter_TAG = 45;
|
|
// No overflow
|
|
(p9) br.ret.sptk b0;;
|
|
}
|
|
GLOBAL_IEEE754_END(hypotl)
|
|
libm_alias_ldouble_other (__hypot, hypot)
|
|
|
|
LOCAL_LIBM_ENTRY(__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 // Save 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
|
|
};;
|
|
LOCAL_LIBM_END(__libm_error_region#)
|
|
.type __libm_error_support#,@function
|
|
.global __libm_error_support#
|