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[PATCH] powerpc64le: Fix TFtype in sqrtf128 when using -mabi=ieeelongdouble
- From: Tulio Magno Quites Machado Filho <tuliom at linux dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Date: Mon, 28 May 2018 18:58:49 -0300
- Subject: [PATCH] powerpc64le: Fix TFtype in sqrtf128 when using -mabi=ieeelongdouble
When building with -mlong-double-128 or -mabi=ibmlongdouble, TFtype
represents the IBM 128-bit extended floating point type, while KFtype
represents the IEEE 128-bit floating point type.
The soft float implementation of e_sqrtf128 had to redefine TFtype and
TF in order to workaround this issue. However, this behavior changes
when -mabi=ieeelongdouble is used and the macros are not necessary.
2018-05-28 Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* sysdeps/powerpc/powerpc64le/fpu/e_sqrtf128.c
[__HAVE_FLOAT128_UNLIKE_LDBL] (TFtype, TF): Restrict TFtype
and TF redirection to KFtype and KF only when the default
long double type is not the IEEE 128-bit floating point type.
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
---
sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c b/sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c
index 0ff897bef3..1ef3d509b0 100644
--- a/sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c
+++ b/sysdeps/powerpc/powerpc64/le/fpu/e_sqrtf128.c
@@ -26,9 +26,12 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/* Unavoidable hacks since TFmode is assumed to be binary128. */
-#define TFtype KFtype
-#define TF KF
+/* Unavoidable hacks since TFmode is assumed to be binary128 when
+ -mabi=ibmlongdouble is used. */
+#if __HAVE_FLOAT128_UNLIKE_LDBL
+# define TFtype KFtype
+# define TF KF
+#endif
#include <soft-fp.h>
#include <quad.h>
--
2.14.3