[PATCH, testsuite]: Disable some tests in gcc.dg/torture/pr68264.c for older glibcs

[Uros Bizjak]

2016-01-27  Uros Bizjak  <ubiz...@gmail.com>

    * gcc.dg/torture/pr68264.c: Disable log1p test for glibc < 2.22
    and expm1 test for glibc < 2.11.

Tested on x86_64-linux-gnu, CentOS 5.11 and Fedora 23.

OK for mainline?

Uros.

diff --git a/gcc/testsuite/gcc.dg/torture/pr68264.c 
b/gcc/testsuite/gcc.dg/torture/pr68264.c
index 8396b34..9294d5a 100644
--- a/gcc/testsuite/gcc.dg/torture/pr68264.c
+++ b/gcc/testsuite/gcc.dg/torture/pr68264.c
@@ -74,8 +74,10 @@ test (void)
 #endif
     TEST (log2 (d), LARGE_NEG_EDOM);
   TEST (log10 (d), LARGE_NEG_EDOM);
-  /* Disabled due to glibc PR 6792, fixed in Apr 2015.  */
+#if defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ 
< 22))
+  /* Disabled due to glibc PR 6792, fixed in glibc 2.22.  */
   if (0)
+#endif
     TEST (log1p (d), LARGE_NEG_EDOM);
   TEST (exp (d), POWER_ERANGE);
 #if (defined (__sun__) || defined(__hppa__)) && defined (__unix__)
@@ -85,7 +87,11 @@ test (void)
 #endif
     {
       TEST (exp2 (d), POWER_ERANGE);
-      TEST (expm1 (d), POWER_ERANGE);
+#if defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ 
< 11))
+      /* Disabled due to glibc PR 6788, fixed in glibc 2.11.  */
+      if (0)
+#endif
+       TEST (expm1 (d), POWER_ERANGE);
     }
   TEST (sqrt (d), LARGE_NEG_EDOM);
   TEST (pow (100.0, d), POWER_ERANGE);