fortran, libgfortran: -mabi=ieeelongdouble I/O

The following patch adds the compiler and library side of -mabi=ieeelongdouble
I/O support.

2022-01-04  Jakub Jelinek  <jakub@redhat.com>

gcc/fortran/
	* trans-io.c (transfer_namelist_element): Use gfc_type_abi_kind,
	formatting fixes.
	(transfer_expr): Use gfc_type_abi_kind, use *REAL128* APIs even
	for abi_kind == 17.
libgfortran/
	* libgfortran.h (__acoshieee128, __acosieee128, __asinhieee128,
	__asinieee128, __atan2ieee128, __atanhieee128, __atanieee128,
	__coshieee128, __cosieee128, __erfieee128, __expieee128,
	__fabsieee128, __jnieee128, __log10ieee128, __logieee128,
	__powieee128, __sinhieee128, __sinieee128, __sqrtieee128,
	__tanhieee128, __tanieee128, __ynieee128): Formatting fixes.
	(__strtoieee128, __snprintfieee128): Declare.
	* io/io.h (default_width_for_float, default_precision_for_float):
	Handle kind == 17.
	* io/size_from_kind.c (size_from_real_kind, size_from_complex_kind):
	Likewise.
	* io/read.c (set_integer, si_max, convert_real, convert_infnan,
	read_f): Likewise.
	* io/write.c (extract_uint, size_from_kind, set_fnode_default):
	Likewise.
	* io/write_float.def (DTOA2Q, FDTOA2Q): Define for HAVE_GFC_REAL_17.
	(determine_en_precision, get_float_string): Handle kind == 17.
	* io/transfer128.c: Use also for HAVE_GFC_REAL_17, but don't drag in
	libquadmath if POWER_IEEE128.
	* Makefile.am (comma, PREPROCESS): New variables.
	(gfortran.ver): New goal.
	(version_arg, version_dep): Use gfortran.ver instead of
	$(srcdir)/gfortran.map.
	(gfortran.map-sun): Depend on and use gfortran.ver instead of
	$(srcdir)/gfortran.map.
	(BUILT_SOURCES): Add $(version_dep).
	* Makefile.in: Regenerated.
	* gfortran.map (GFORTRAN_8): Don't export
	_gfortran_transfer_complex128, _gfortran_transfer_complex128_write,
	_gfortran_transfer_real128 and _gfortran_transfer_real128_write if
	HAVE_GFC_REAL_17 is defined.
	(GFORTRAN_12): Export those here instead.

1 files changed, 48 insertions, 22 deletions

diff --git a/libgfortran/libgfortran.h b/libgfortran/libgfortran.h
index e11a06e..f4fd8ae 100644
--- a/libgfortran/libgfortran.h
+++ b/libgfortran/libgfortran.h
@@ -1948,28 +1948,54 @@ internal_proto(cshift1_16_c17);
 
 /* Prototypes for the POWER __ieee128 functions.  */
 #ifdef POWER_IEEE128
-extern __float128 __acoshieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __acosieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __asinhieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __asinieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __atan2ieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __atanhieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __atanieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __coshieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __cosieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __erfieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __expieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __fabsieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __jnieee128 (int, __float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __log10ieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __logieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __powieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __sinhieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __sinieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __sqrtieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __tanhieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __tanieee128 (__float128) __attribute__ ((__nothrow__, __leaf__));
-extern __float128 __ynieee128 (int , __float128) __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __acoshieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __acosieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __asinhieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __asinieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __atan2ieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __atanhieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __atanieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __coshieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __cosieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __erfieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __expieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __fabsieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __jnieee128 (int, __float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __log10ieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __logieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __powieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __sinhieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __sinieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __sqrtieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __tanhieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __tanieee128 (__float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __ynieee128 (int , __float128)
+  __attribute__ ((__nothrow__, __leaf__));
+extern __float128 __strtoieee128 (const char *, char **)
+  __attribute__ ((__nothrow__, __leaf__));
+extern int __snprintfieee128 (char *, size_t, const char *, ...)
+  __attribute__ ((__nothrow__));
 
 #endif