S390: Fp comparison are now raising FE_INVALID with gcc 10.

The s390 gcc bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77918
"S390: Floating point comparisons don't raise invalid for unordered operands."
is fixed with gcc 10. Thus we conditionally set FIX_COMPARE_INVALID
to 0 or 1.

diff --git a/sysdeps/s390/fpu/fix-fp-int-compare-invalid.h b/sysdeps/s390/fpu/fix-fp-int-compare-invalid.h
index dc2450cf831bd62d36a20299dcef8d36f889f970..440b3d0036384329b1aaa7cab48bb82c4a44ce9f 100644 (file)
--- a/sysdeps/s390/fpu/fix-fp-int-compare-invalid.h
+++ b/sysdeps/s390/fpu/fix-fp-int-compare-invalid.h
@@ -27,10 +27,12 @@
    <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77918>.
    There exists an equivalent gcc bugzilla for Intel:
    <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52451>.
-   Once the s390 gcc bug is fixed, the definition of FIX_COMPARE_INVALID
-   should have a __GNUC_PREREQ conditional added so that e.g. the workaround
-   to call feraiseexcept (FE_INVALID) in math/s_iseqsig_template.c can be
-   avoided.  */
-#define FIX_COMPARE_INVALID 1
+   This s390 gcc bug is fixed with gcc 10, thus we don't need the workaround
+   to call feraiseexcept (FE_INVALID) in math/s_iseqsig_template.c.  */
+#if __GNUC_PREREQ (10, 0)
+# define FIX_COMPARE_INVALID 0
+#else
+# define FIX_COMPARE_INVALID 1
+#endif
 
 #endif /* fix-fp-int-compare-invalid.h */