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-rw-r--r--math/Makefile7
-rw-r--r--math/test-float64x.h43
2 files changed, 49 insertions, 1 deletions
diff --git a/math/Makefile b/math/Makefile
index b2bd3d3bcc..668c283867 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -126,9 +126,14 @@ type-float-routines := k_rem_pio2f math_errf e_exp2f_data e_logf_data \
type-float128-suffix := f128
type-float128-routines := t_sincosf128 k_sincosf128
type-float128-yes := float128
+
+# _Float64x may be supported, only as an alias type.
+type-float64x-yes := float64x
+
types = $(types-basic) $(type-float128-$(float128-fcts))
test-types = $(test-types-basic) $(type-float128-$(float128-fcts)) \
- $(type-float128-$(float128-alias-fcts))
+ $(type-float128-$(float128-alias-fcts)) \
+ $(type-float64x-$(float64x-alias-fcts))
# For each of the basic types (float, double, long double), replace the
# occurrences of 'F' in arg 1 with the appropriate suffix for the type.
diff --git a/math/test-float64x.h b/math/test-float64x.h
new file mode 100644
index 0000000000..4ff72ac626
--- /dev/null
+++ b/math/test-float64x.h
@@ -0,0 +1,43 @@
+/* Common definitions for libm tests for _Float64x.
+
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "test-math-floatn.h"
+
+/* Fixup builtins and constants for older compilers. */
+#include <bits/floatn.h>
+#include <float.h>
+
+#define FUNC(function) function ## f64x
+#define FLOAT _Float64x
+#define CFLOAT __CFLOAT64X
+#define BUILD_COMPLEX(real, imag) (CMPLXF64X ((real), (imag)))
+#define PREFIX FLT64X
+#if FLT64X_MANT_DIG == LDBL_MANT_DIG
+# define TYPE_STR "ldouble"
+# define ULP_IDX ULP_LDBL
+# define ULP_I_IDX ULP_I_LDBL
+#else
+# define TYPE_STR "float128"
+# define ULP_IDX ULP_FLT128
+# define ULP_I_IDX ULP_I_FLT128
+#endif
+#define LIT(x) __f64x (x)
+#define LITM(x) x ## f64x
+#define FTOSTR strfromf64x
+#define snan_value_MACRO SNANF64X