+2017-06-30 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
+
+ * include/math.h (__signbitf128): Define as hidden.
+ * sysdeps/ieee754/float128/s_signbitf128.c (__signbitf128):
+ Reimplement without builtins.
+ * sysdeps/ia64/bits/floatn.h [!__GNUC_PREREQ (6, 0)]
+ (__builtin_signbitf128): Define to __signbitf128.
+ * sysdeps/powerpc/bits/floatn.h: Likewise.
+ * sysdeps/x86/bits/floatn.h: Likewise.
+
2017-06-30 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/arm/fcntl.c: Remove file.
hidden_proto (__finitef128)
hidden_proto (__isinff128)
hidden_proto (__isnanf128)
+hidden_proto (__signbitf128)
# endif
# endif
# define __builtin_nansf128(x) ((_Float128) __builtin_nans (x))
# endif
+/* In math/math.h, __MATH_TG will expand signbit to __builtin_signbit*,
+ e.g.: __builtin_signbitf128, before GCC 6. However, there has never
+ been a __builtin_signbitf128 in GCC and the type-generic builtin is
+ only available since GCC 6. */
+# if !__GNUC_PREREQ (6, 0)
+# define __builtin_signbitf128 __signbitf128
+# endif
+
#endif
#endif /* _BITS_FLOATN_H */
+/* Return nonzero value if number is negative.
+ 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 <float128_private.h>
-#include "../ldbl-128/s_signbitl.c"
+#include <math.h>
+#include <math_private.h>
+
+/* Once GCC >= 6.0 is required for building glibc, this implementation can
+ be removed and replaced with an inclusion of ldbl-128/s_signbitl.c. */
+int
+__signbitf128 (_Float128 x)
+{
+#if __GNUC_PREREQ (6, 0)
+ return __builtin_signbit (x);
+#else
+ int64_t e;
+
+ GET_FLOAT128_MSW64 (e, x);
+ return e < 0;
+#endif
+}
+hidden_def (__signbitf128)
# define __builtin_nansf128 __builtin_nansq
# endif
+/* In math/math.h, __MATH_TG will expand signbit to __builtin_signbit*,
+ e.g.: __builtin_signbitf128, before GCC 6. However, there has never
+ been a __builtin_signbitf128 in GCC and the type-generic builtin is
+ only available since GCC 6. */
+# if !__GNUC_PREREQ (6, 0)
+# define __builtin_signbitf128 __signbitf128
+# endif
+
#endif
#endif /* _BITS_FLOATN_H */
# define __builtin_nansf128(x) ((_Float128) __builtin_nans (x))
# endif
+/* In math/math.h, __MATH_TG will expand signbit to __builtin_signbit*,
+ e.g.: __builtin_signbitf128, before GCC 6. However, there has never
+ been a __builtin_signbitf128 in GCC and the type-generic builtin is
+ only available since GCC 6. */
+# if !__GNUC_PREREQ (6, 0)
+# define __builtin_signbitf128 __signbitf128
+# endif
+
#endif
#endif /* _BITS_FLOATN_H */