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authorJoseph Myers <joseph@codesourcery.com>2018-08-10 19:22:01 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-08-10 19:22:01 +0000
commit2ce7ba7d15b0ea0ea90c6f57ba36e23d190d91bf (patch)
tree9135c361fa5c8afc72ccaa164f4ecc937872dd7c /sysdeps/i386
parentea5c662c623125ad39fc43d5b9224150256407a9 (diff)
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Move SNAN_TESTS_* out of math-tests.h.
Continuing moving macros out of math-tests.h to smaller headers
following typo-proof conventions instead of using #ifndef, this patch
moves the SNAN_TESTS_* macros for individual types out to their own
sysdeps header (while the type-generic SNAN_TESTS wrapper for those
macros remains in math-tests.h).

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* sysdeps/generic/math-tests-snan.h: New file.
	* sysdeps/generic/math-tests.h: Include <math-tests-snan.h>.
	(SNAN_TESTS_float): Do not define here.
	(SNAN_TESTS_double): Likewise.
	(SNAN_TESTS_long_double): Likewise.
	(SNAN_TESTS_float128): Likewise.
	* sysdeps/i386/fpu/math-tests-snan.h: New file.
	* sysdeps/i386/fpu/math-tests.h: Remove file.
	* sysdeps/ia64/math-tests-snan.h: New file.
	* sysdeps/ia64/math-tests.h: Remove file.
	* sysdeps/x86/math-tests.h: Likewise.
	* sysdeps/x86_64/fpu/math-tests-snan.h: New file.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/fpu/math-tests-snan.h (renamed from sysdeps/i386/fpu/math-tests.h)26
1 files changed, 19 insertions, 7 deletions
diff --git a/sysdeps/i386/fpu/math-tests.h b/sysdeps/i386/fpu/math-tests-snan.h
index 6aba8414d4..9d30f69db0 100644
--- a/sysdeps/i386/fpu/math-tests.h
+++ b/sysdeps/i386/fpu/math-tests-snan.h
@@ -1,4 +1,4 @@
-/* Configuration for math tests.  32-bit x86 version.
+/* Configuration for math tests: sNaN support.  32-bit x86 version.
    Copyright (C) 2013-2018 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -16,12 +16,24 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-/* On 32-bit x86, versions of GCC up to at least 4.8 are happy to use FPU load
-   instructions for sNaN values, and loading a float or double sNaN value will
-   already raise an INVALID exception as well as turn the sNaN into a qNaN,
-   rendering certain tests infeasible in this scenario.
-   <http://gcc.gnu.org/PR56831>.  */
+#ifndef I386_MATH_TESTS_SNAN_H
+#define I386_MATH_TESTS_SNAN_H 1
+
+/* On 32-bit x86, versions of GCC up to at least 4.8 are happy to use
+   FPU load instructions for sNaN values, and loading a float or
+   double sNaN value will already raise an INVALID exception as well
+   as turn the sNaN into a qNaN, rendering certain tests infeasible in
+   this scenario.  <https://gcc.gnu.org/PR56831>.  */
 #define SNAN_TESTS_float	0
 #define SNAN_TESTS_double	0
+#define SNAN_TESTS_long_double	1
+
+/* Before GCC 7, there is no built-in function to provide a __float128
+   sNaN, so most sNaN tests for this type cannot work.  */
+#if __GNUC_PREREQ (7, 0)
+# define SNAN_TESTS_float128	1
+#else
+# define SNAN_TESTS_float128	0
+#endif
 
-#include_next <math-tests.h>
+#endif /* math-tests-snan.h.  */