1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/hypot_1.f90 b/gcc/testsuite/gfortran.dg/hypot_1.f90
new file mode 100644
index 000000000..0c1c6e2ae
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/hypot_1.f90
@@ -0,0 +1,29 @@
+! { dg-do run }
+
+program test
+  implicit none
+
+  interface check
+    procedure check_r4
+    procedure check_r8
+  end interface check
+
+  real(kind=4) :: x4, y4
+  real(kind=8) :: x8, y8
+
+  x8 = 1.9_8 ; x4 = 1.9_4
+  y8 = -2.1_8 ; y4 = -2.1_4
+
+  call check(hypot(x8,y8), hypot(1.9_8,-2.1_8))
+  call check(hypot(x4,y4), hypot(1.9_4,-2.1_4))
+
+contains
+  subroutine check_r4 (a, b) ! { dg-warning "Extension: Internal procedure" }
+    real(kind=4), intent(in) :: a, b
+    if (abs(a - b) > 1.e-5 * abs(b)) call abort
+  end subroutine
+  subroutine check_r8 (a, b) ! { dg-warning "Extension: Internal procedure" }
+    real(kind=8), intent(in) :: a, b
+    if (abs(a - b) > 1.e-7 * abs(b)) call abort
+  end subroutine
+end program test