1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/signbit-5.c b/gcc/testsuite/gcc.target/s390/signbit-5.c
new file mode 100644
index 0000000..6840327
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/signbit-5.c
@@ -0,0 +1,35 @@
+/* { dg-do run { target lp64 } } */
+/* { dg-options "-O2 -march=z14 -save-temps" } */
+
+/*
+** signbit_longdouble_reg:
+**      ld	%f0,0(%r2);ld	%f2,8+0(%r2)
+**      lgdr	(%r[0-9]+),%f0
+**      srlg	%r2,\1,63
+**      br	%r14
+*/
+__attribute__ ((noipa))
+int
+signbit_longdouble_reg (long double x)
+{
+  __asm__ ("" : "+f" (x));
+  return __builtin_signbit (x);
+}
+
+/*
+** signbit_longdouble_mem:
+**      lg	(%r[0-9]+),0\(%r2\)
+**      srlg	%r2,\1,63
+**      br	%r14
+*/
+__attribute__ ((noipa))
+int signbit_longdouble_mem (long double *x) { return __builtin_signbit (*x); }
+
+#include "signbit.h"
+TEST (longdouble, long double, __builtin_infl(), __builtin_nanl("42"), 0.L, 42.L)
+
+int
+main (void)
+{
+  test_longdouble ();
+}