1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/initialization_14.f90 b/gcc/testsuite/gfortran.dg/initialization_14.f90
new file mode 100644
index 0000000..4d5b685
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/initialization_14.f90
@@ -0,0 +1,45 @@
+! { dg-do compile }
+! PR 20851
+! Dummy arguments are disallowed in initialization expressions in
+! elemental functions except as arguments to the intrinsic functions
+! BIT_SIZE, KIND, LEN, or to the numeric inquiry functions listed
+! in 13.11.8
+MODULE TT
+INTEGER M
+CONTAINS
+   ELEMENTAL REAL FUNCTION two(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(N) :: scr ! { dg-error "Dummy argument 'n' not allowed in expression" }
+   END FUNCTION
+
+   ELEMENTAL REAL FUNCTION twopointfive(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(MAX(N,2)) :: scr ! { dg-error "Dummy argument 'n' not allowed in expression" }
+   end FUNCTION twopointfive
+
+   REAL FUNCTION three(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(N) :: scr ! this time it's valid
+   END FUNCTION
+
+   ELEMENTAL REAL FUNCTION four(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(bit_size(N)) :: scr ! another valid variant
+   END FUNCTION
+
+   ELEMENTAL REAL FUNCTION gofourit(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(MIN(HUGE(N),1)) :: scr ! another valid variant
+   END FUNCTION
+
+   ELEMENTAL REAL FUNCTION fourplusone(N)
+     INTEGER, INTENT(IN) :: N
+     INTEGER, DIMENSION(M) :: scr ! another valid variant
+   END FUNCTION
+
+   ELEMENTAL REAL FUNCTION five(X)
+     real, intent(in) :: x
+     CHARACTER(LEN=PRECISION(X)) :: C ! valid again
+   END FUNCTION
+END MODULE
+END