1ec601bf9f
/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
* Makefile.def: Add libquadmath; build it with language=fortran.
* configure.ac: Add libquadmath.
* Makefile.tpl: Handle multiple libs in check-[+language+].
* Makefile.in: Regenerate.
* configure: Regenerate.
libquadmath/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
Initial implementation and checkin.
gcc/fortran/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
* gfortranspec.c (find_spec_file): New function.
(lang_specific_driver): Try to find .spec file and use it.
* trans-io.c (iocall): Define
* IOCALL_X_REAL128/COMPLEX128(,write).
(gfc_build_io_library_fndecls): Build decl for __float128 I/O.
(transfer_expr): Call __float128 I/O functions.
* trans-types.c (gfc_init_kinds): Allow kind-16 belonging
to __float128.
gcc/testsuite/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
* gfortran.dg/quad_1.f90: New.
* lib/gcc-defs.exp (gcc-set-multilib-library-path): Use also
compiler arguments.
* lib/gfortran.exp (gfortran_link_flags): Add libquadmath to
library search path; call gcc-set-multilib-library-path with
arguments such that libgfortran.spec is found.
(gfortran_init): Add path for libgfortran.spec to
GFORTRAN_UNDER_TEST.
libgomp/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
* configure.ac:
* configure: Regenerate.
libgfortran/
2010-11-13 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32049
* Makefile.am: Add missing pow_r16_i4.c, add transfer128.c,
link libquadmath, if used.
* acinclude.m4 (LIBGFOR_CHECK_FLOAT128): Add.
* configure.ac: Use it, touch spec file.
* gfortran.map: Add pow_r16_i4 and
transfer_(real,complex)128(,write) functions.
* intrinsics/cshift0.c (cshift0): Handle __float128 type.
* intrinsics/erfc_scaled_inc.c: Ditto.
* intrinsics/pack_generic.c (pack): Ditto
* intrinsics/spread_generic.c (spread): Ditto.
* intrinsics/unpack_generic.c (unpack1): Ditto.
* io/read.c (convert_real): Ditto.
* io/transfer.c: Update comments.
* io/transfer128.c: New file.
* io/write_float.def (write_float): Handle __float128 type.
* libgfortran.h: #include quadmath_weak.h, define __builtin_infq
and nanq.
* m4/mtype.m4: Handle __float128 type.
* runtime/in_pack_generic.c (internal_pack): Ditto.
* runtime/in_unpack_generic.c (internal_unpack): Ditto.
* kinds-override.h: New file.
* libgfortran.spec.in: Ditto.
* generated/pow_r16_i4.c: Generated.
* Makefile.in: Regenerate.
* configure: Regenerate.
* config.h: Regenerate.
* bessel_r10.c: Regenerate.
* bessel_r16.c: Regenerate.
* bessel_r4.c: Regenerate.
* bessel_r8.c: Regenerate.
* exponent_r16.c: Regenerate.
* fraction_r16.c: Regenerate.
* nearest_r16.c: Regenerate.
* norm2_r10.c: Regenerate.
* norm2_r16.c: Regenerate.
* norm2_r4.c: Regenerate.
* norm2_r8.c: Regenerate.
* rrspacing_r16.c: Regenerate.
* set_exponent_r16.c: Regenerate.
* spacing_r16.c: Regenerate.
Co-Authored-By: Tobias Burnus <burnus@net-b.de>
From-SVN: r166825
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* s_nextafterl.c -- long double version of s_nextafter.c.
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* Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#include "quadmath-imp.h"
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__float128
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nextafterq (__float128 x, __float128 y)
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{
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int64_t hx,hy,ix,iy;
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uint64_t lx,ly;
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GET_FLT128_WORDS64(hx,lx,x);
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GET_FLT128_WORDS64(hy,ly,y);
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ix = hx&0x7fffffffffffffffLL; /* |x| */
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iy = hy&0x7fffffffffffffffLL; /* |y| */
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if(((ix>=0x7fff000000000000LL)&&((ix-0x7fff000000000000LL)|lx)!=0) || /* x is nan */
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((iy>=0x7fff000000000000LL)&&((iy-0x7fff000000000000LL)|ly)!=0)) /* y is nan */
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return x+y;
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if(x==y) return y; /* x=y, return y */
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if((ix|lx)==0) { /* x == 0 */
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SET_FLT128_WORDS64(x,hy&0x8000000000000000ULL,1);/* return +-minsubnormal */
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/* here we should raise an underflow flag */
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return x;
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}
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if(hx>=0) { /* x > 0 */
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if(hx>hy||((hx==hy)&&(lx>ly))) { /* x > y, x -= ulp */
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if(lx==0) hx--;
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lx--;
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} else { /* x < y, x += ulp */
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lx++;
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if(lx==0) hx++;
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}
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} else { /* x < 0 */
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if(hy>=0||hx>hy||((hx==hy)&&(lx>ly))){/* x < y, x -= ulp */
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if(lx==0) hx--;
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lx--;
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} else { /* x > y, x += ulp */
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lx++;
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if(lx==0) hx++;
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}
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}
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hy = hx&0x7fff000000000000LL;
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if(hy==0x7fff000000000000LL) return x+x;/* overflow */
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if(hy==0) {
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/* here we should raise an underflow flag */
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}
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SET_FLT128_WORDS64(x,hx,lx);
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return x;
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}
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