Fortran 2018 has added IEEE_SUBNORMAL, IEEE_POSITIVE_SUBNORMAL, and
IEEE_NEGATIVE_SUBNORMAL as counterparts the same features with the
DENORMAL name. The attached patch allows gfortran to recognize
and do the right thing with these featuers. OK to commit?
2018-12-25 Steven G. Kargl <ka...@gcc.gnu.org>
* expr.c (external_spec_function): Add ieee_support_subnormal to list
of IEEE inquiry functions.
2018-12-25 Steven G. Kargl <ka...@gcc.gnu.org>
* gfortran.map: Expose subnormal functions in dynamic
library.
* ieee/ieee_arithmetic.F90: Add support for IEEE_SUBNORMAL,
IEEE_POSITIVE_SUBNORMAL, and IEEE_NEGATIVE_SUBNORMAL.
* ieee/ieee_helper.c: Ditto.
* ieee/ieee_features.F90: Add IEEE_SUBNORMAL.
--
Steve
Index: gcc/fortran/expr.c
===================================================================
--- gcc/fortran/expr.c (revision 267418)
+++ gcc/fortran/expr.c (working copy)
@@ -3061,6 +3061,7 @@ external_spec_function (gfc_expr *e)
|| !strcmp (f->name, "ieee_support_halting")
|| !strcmp (f->name, "ieee_support_datatype")
|| !strcmp (f->name, "ieee_support_denormal")
+ || !strcmp (f->name, "ieee_support_subnormal")
|| !strcmp (f->name, "ieee_support_divide")
|| !strcmp (f->name, "ieee_support_inf")
|| !strcmp (f->name, "ieee_support_io")
Index: libgfortran/gfortran.map
===================================================================
--- libgfortran/gfortran.map (revision 267418)
+++ libgfortran/gfortran.map (working copy)
@@ -1573,4 +1573,9 @@ GFORTRAN_9 {
_gfortran_sfindloc2_s1;
_gfortran_sfindloc2_s4;
_gfortran_st_wait_async;
+ __ieee_arithmetic_MOD_ieee_support_subnormal_10;
+ __ieee_arithmetic_MOD_ieee_support_subnormal_16;
+ __ieee_arithmetic_MOD_ieee_support_subnormal_4;
+ __ieee_arithmetic_MOD_ieee_support_subnormal_8;
+ __ieee_arithmetic_MOD_ieee_support_subnormal_noarg;
};
Index: libgfortran/ieee/ieee_arithmetic.F90
===================================================================
--- libgfortran/ieee/ieee_arithmetic.F90 (revision 267418)
+++ libgfortran/ieee/ieee_arithmetic.F90 (working copy)
@@ -55,9 +55,11 @@ module IEEE_ARITHMETIC
IEEE_NEGATIVE_INF = IEEE_CLASS_TYPE(3), &
IEEE_NEGATIVE_NORMAL = IEEE_CLASS_TYPE(4), &
IEEE_NEGATIVE_DENORMAL = IEEE_CLASS_TYPE(5), &
+ IEEE_NEGATIVE_SUBNORMAL= IEEE_CLASS_TYPE(5), &
IEEE_NEGATIVE_ZERO = IEEE_CLASS_TYPE(6), &
IEEE_POSITIVE_ZERO = IEEE_CLASS_TYPE(7), &
IEEE_POSITIVE_DENORMAL = IEEE_CLASS_TYPE(8), &
+ IEEE_POSITIVE_SUBNORMAL= IEEE_CLASS_TYPE(8), &
IEEE_POSITIVE_NORMAL = IEEE_CLASS_TYPE(9), &
IEEE_POSITIVE_INF = IEEE_CLASS_TYPE(10)
@@ -795,6 +797,7 @@ REM_MACRO(4,4,4)
SUPPORTGENERIC(IEEE_SUPPORT_DATATYPE)
SUPPORTGENERIC(IEEE_SUPPORT_DENORMAL)
+SUPPORTGENERIC(IEEE_SUPPORT_SUBNORMAL)
SUPPORTGENERIC(IEEE_SUPPORT_DIVIDE)
SUPPORTGENERIC(IEEE_SUPPORT_INF)
SUPPORTGENERIC(IEEE_SUPPORT_IO)
@@ -1243,7 +1362,7 @@ SUPPORTMACRO(IEEE_SUPPORT_DATATYPE,16,.true.)
#endif
SUPPORTMACRO_NOARG(IEEE_SUPPORT_DATATYPE,.true.)
-! IEEE_SUPPORT_DENORMAL
+! IEEE_SUPPORT_DENORMAL and IEEE_SUPPORT_SUBNORMAL
SUPPORTMACRO(IEEE_SUPPORT_DENORMAL,4,.true.)
SUPPORTMACRO(IEEE_SUPPORT_DENORMAL,8,.true.)
@@ -1254,6 +1373,16 @@ SUPPORTMACRO(IEEE_SUPPORT_DENORMAL,10,.true.)
SUPPORTMACRO(IEEE_SUPPORT_DENORMAL,16,.true.)
#endif
SUPPORTMACRO_NOARG(IEEE_SUPPORT_DENORMAL,.true.)
+
+SUPPORTMACRO(IEEE_SUPPORT_SUBNORMAL,4,.true.)
+SUPPORTMACRO(IEEE_SUPPORT_SUBNORMAL,8,.true.)
+#ifdef HAVE_GFC_REAL_10
+SUPPORTMACRO(IEEE_SUPPORT_SUBNORMAL,10,.true.)
+#endif
+#ifdef HAVE_GFC_REAL_16
+SUPPORTMACRO(IEEE_SUPPORT_SUBNORMAL,16,.true.)
+#endif
+SUPPORTMACRO_NOARG(IEEE_SUPPORT_SUBNORMAL,.true.)
! IEEE_SUPPORT_DIVIDE
Index: libgfortran/ieee/ieee_features.F90
===================================================================
--- libgfortran/ieee/ieee_features.F90 (revision 267418)
+++ libgfortran/ieee/ieee_features.F90 (working copy)
@@ -36,6 +36,7 @@ module IEEE_FEATURES
type(IEEE_FEATURES_TYPE), parameter, public :: &
IEEE_DATATYPE = IEEE_FEATURES_TYPE(0), &
IEEE_DENORMAL = IEEE_FEATURES_TYPE(1), &
+ IEEE_SUBNORMAL = IEEE_FEATURES_TYPE(1), &
IEEE_DIVIDE = IEEE_FEATURES_TYPE(2), &
IEEE_HALTING = IEEE_FEATURES_TYPE(3), &
IEEE_INEXACT_FLAG = IEEE_FEATURES_TYPE(4), &
Index: libgfortran/ieee/ieee_helper.c
===================================================================
--- libgfortran/ieee/ieee_helper.c (revision 267418)
+++ libgfortran/ieee/ieee_helper.c (working copy)
@@ -50,7 +50,8 @@ internal_proto(ieee_class_helper_16);
enum { IEEE_OTHER_VALUE = 0, IEEE_SIGNALING_NAN, IEEE_QUIET_NAN,
IEEE_NEGATIVE_INF, IEEE_NEGATIVE_NORMAL, IEEE_NEGATIVE_DENORMAL,
IEEE_NEGATIVE_ZERO, IEEE_POSITIVE_ZERO, IEEE_POSITIVE_DENORMAL,
- IEEE_POSITIVE_NORMAL, IEEE_POSITIVE_INF };
+ IEEE_POSITIVE_NORMAL, IEEE_POSITIVE_INF, IEEE_SUBNORMAL,
+ IEEE_NEGATIVE_SUBNORMAL, IEEE_POSITIVE_SUBNORMAL };
#define CLASSMACRO(TYPE) \
int ieee_class_helper_ ## TYPE (GFC_REAL_ ## TYPE *value) \
