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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-01-08 05:10:41 -0600
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-01-08 08:14:48 -0600
commit38f3458175ecf7c3588bd5b6e465f4d9205fbe1c (patch)
tree1c5442a50f36e93adb52c57c7e02977699d60f55 /sysdeps/ieee754/ldbl-128ibm/s_truncl.c
parent3ff6304ee7294951adef3255457ca28ebaf0d7d1 (diff)
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PowerPC: remove wrong truncl implementation for PowerPC64
The truncl assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_truncl.S)
returns wrong results for some inputs where first double is a exact integer
and the precision is determined by second long double.

Checking on implementation comments and history, I am very confident the
assembly implementation was based on a version before commit
5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in
long double (ldbl-128ibm) rounding functions in glibc-2.4).

By just removing the implementation and make the build select
sysdeps/ieee754/ldbl-128ibm/s_truncl.c instead it fixes tgammal
issues regarding wrong result sign.
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_truncl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_truncl.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_truncl.c b/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
index 490ad266d4..aca3f3efc2 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_truncl.c
@@ -17,9 +17,6 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-/* This has been coded in assembler because GCC makes such a mess of it
-   when it's coded in C.  */
-
 #include <math.h>
 #include <math_ldbl_opt.h>
 #include <float.h>