1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/signbit-1.c b/gcc/testsuite/gcc.target/s390/signbit-1.c
new file mode 100644
index 0000000..45f608a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/signbit-1.c
@@ -0,0 +1,40 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -march=z900 -save-temps" } */
+/* { dg-final { scan-assembler-times {\ttceb\t} 2 } } */
+/* { dg-final { scan-assembler-times {\ttcdb\t} 2 } } */
+/* { dg-final { scan-assembler-times {\ttcxb\t} 2 } } */
+
+/* Binary Floating-Point */
+
+__attribute__ ((noipa))
+int signbit_float_reg (float x) { return __builtin_signbit (x); }
+__attribute__ ((noipa))
+int signbit_float_mem (float *x) { return __builtin_signbit (*x); }
+__attribute__ ((noipa))
+int signbit_double_reg (double x) { return __builtin_signbit (x); }
+__attribute__ ((noipa))
+int signbit_double_mem (double *x) { return __builtin_signbit (*x); }
+
+__attribute__ ((noipa))
+int
+signbit_longdouble_reg (long double x)
+{
+  __asm__ ("" : "+f" (x));
+  return __builtin_signbit (x);
+}
+
+__attribute__ ((noipa))
+int signbit_longdouble_mem (long double *x) { return __builtin_signbit (*x); }
+
+#include "signbit.h"
+TEST (float, float, __builtin_inff(), __builtin_nanf("42"), 0.f, 42.f)
+TEST (double, double, __builtin_inf(), __builtin_nan("42"), 0., 42.)
+TEST (longdouble, long double, __builtin_infl(), __builtin_nanl("42"), 0.L, 42.L)
+
+int
+main (void)
+{
+  test_float ();
+  test_double ();
+  test_longdouble ();
+}