1 files changed, 55 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/erf_2.F90 b/gcc/testsuite/gfortran.dg/erf_2.F90
new file mode 100644
index 000000000..c92f45b04
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/erf_2.F90
@@ -0,0 +1,55 @@
+! { dg-do run { xfail spu-*-* } }
+! { dg-options "-fno-range-check -ffree-line-length-none -O0" }
+! { dg-add-options ieee }
+!
+! XFAILed for SPU targets because our library implementation of
+! the double-precision erf/erfc functions is not accurate enough.
+!
+! Check that simplification functions and runtime library agree on ERF,
+! ERFC and ERFC_SCALED.
+
+program test
+  implicit none
+
+  interface check
+    procedure check_r4
+    procedure check_r8
+  end interface check
+
+  real(kind=4) :: x4
+  real(kind=8) :: x8
+
+#define CHECK(a) \
+  x8 = a ; x4 = a ; \
+  call check(erf(real(a,kind=8)), erf(x8)) ; \
+  call check(erf(real(a,kind=4)), erf(x4)) ; \
+  call check(erfc(real(a,kind=8)), erfc(x8)) ; \
+  call check(erfc(real(a,kind=4)), erfc(x4)) ; \
+  call check(erfc_scaled(real(a,kind=8)), erfc_scaled(x8)) ; \
+  call check(erfc_scaled(real(a,kind=4)), erfc_scaled(x4)) ;
+
+  CHECK(0.0)
+  CHECK(0.9)
+  CHECK(1.9)
+  CHECK(19.)
+  CHECK(190.)
+
+  CHECK(-0.0)
+  CHECK(-0.9)
+  CHECK(-1.9)
+  CHECK(-19.)
+  CHECK(-190.)
+
+contains
+
+  subroutine check_r4 (a, b)
+    real(kind=4), intent(in) :: a, b
+    if (abs(a - b) > 10 * spacing(a)) call abort
+  end subroutine
+
+  subroutine check_r8 (a, b)
+    real(kind=8), intent(in) :: a, b
+    if (abs(a - b) > 10 * spacing(a)) call abort
+  end subroutine
+
+end program test