1 files changed, 56 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/real_const_3.f90 b/gcc/testsuite/gfortran.dg/real_const_3.f90
new file mode 100644
index 000000000..9f3f5d837
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/real_const_3.f90
@@ -0,0 +1,56 @@
+!{ dg-do run }
+!{ dg-options "-fno-range-check" }
+!{ dg-add-options ieee }
+!{ dg-skip-if "NaN not supported" { spu-*-* } { "*" } { "" } }
+! PR19310 and PR19904, allow disabling range check during compile.
+! Contributed by Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+program main
+  character(len=80) str
+  real, parameter :: zero=0, nan=0/zero
+  complex :: z = (-0.1,-2.2)/(0.0,0.0)
+  complex :: z2 = (0.1,1)/0
+  complex :: z3 = (1e35, -2e3)/1.234e-37
+  complex :: z4 = (1e-35, -2e-35)/1234e34
+  real :: a
+  a = exp(1000.0)
+  b = 1/exp(1000.0)
+
+  write(str,*) a
+  if (trim(adjustl(str)) .ne. 'Infinity') call abort
+
+  if (b .ne. 0.) call abort
+
+  write(str,*) -1.0/b
+  if (trim(adjustl(str)) .ne. '-Infinity') call abort
+
+  write(str,*) b/0.0
+  if (trim(adjustl(str)) .ne. 'NaN') call abort
+
+  write(str,*) 0.0/0.0
+  if (trim(adjustl(str)) .ne. 'NaN') call abort
+
+  write(str,*) 1.0/(-0.)
+  if (trim(adjustl(str)) .ne. '-Infinity') call abort
+
+  write(str,*) -2.0/0.
+  if (trim(adjustl(str)) .ne. '-Infinity') call abort
+
+  write(str,*) 3.0/0.
+  if (trim(adjustl(str)) .ne. 'Infinity') call abort
+
+  write(str,*)  nan
+  if (trim(adjustl(str)) .ne. 'NaN') call abort
+
+  write(str,*) z
+  if (trim(adjustl(str)) .ne. '(            NaN,            NaN)') call abort
+
+  write(str,*) z2
+  if (trim(adjustl(str)) .ne. '(            NaN,            NaN)') call abort
+
+  write(str,*) z3
+  if (trim(adjustl(str)) .ne. '(       Infinity,      -Infinity)') call abort
+
+  write(str,*) z4
+  if (trim(adjustl(str)) .ne. '(  0.0000000    , -0.0000000    )') call abort
+
+end program main