2020-8-20 José Rui Faustino de Sousa <jrfsousa@gmail.com>

gcc/fortran/ChangeLog:

	PR fortran/94110
	* interface.c (gfc_compare_actual_formal): Add code to also raise
	the actual argument cannot be an assumed-size array error when the
	dummy arguments are deferred-shape or assumed-rank pointer.

gcc/testsuite/ChangeLog:

	PR fortran/94110
	* gfortran.dg/PR94110.f90: New test.

gcc/fortran/interface.c

@@ -3303,7 +3303,10 @@ gfc_compare_actual_formal (gfc_actual_arglist **ap, gfc_formal_arglist *formal,
 	  return false;
 	}
 
-      if (f->sym->as && f->sym->as->type == AS_ASSUMED_SHAPE
+      if (f->sym->as
+	  && (f->sym->as->type == AS_ASSUMED_SHAPE
+	      || f->sym->as->type == AS_DEFERRED
+	      || (f->sym->as->type == AS_ASSUMED_RANK && f->sym->attr.pointer))
 	  && a->expr->expr_type == EXPR_VARIABLE
 	  && a->expr->symtree->n.sym->as
 	  && a->expr->symtree->n.sym->as->type == AS_ASSUMED_SIZE

gcc/testsuite/gfortran.dg/PR94110.f90

@@ -0,0 +1,88 @@
+! { dg-do compile }
+!
+! Test the fix for PR94110
+! 
+  
+program asa_p
+
+  implicit none
+
+  integer, parameter :: n = 7
+
+  integer :: p(n)
+  integer :: s
+
+  p = 1
+  s = sumf_as(p)
+  if (s/=n) stop 1
+  s = sumf_ar(p)
+  if (s/=n) stop 2
+  stop
+
+contains
+
+  function sumf_as(a) result(s)
+    integer, target, intent(in) :: a(*)
+
+    integer :: s
+
+    s = sum_as(a)   ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+    s = sum_p_ds(a) ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+    s = sum_p_ar(a) ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+    return
+  end function sumf_as
+
+  function sumf_ar(a) result(s)
+    integer, target, intent(in) :: a(..)
+
+    integer :: s
+
+    select rank(a)
+    rank(*)
+      s = sum_as(a)   ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+      s = sum_p_ds(a) ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+      s = sum_p_ar(a) ! { dg-error "Actual argument for .a. cannot be an assumed-size array" } 
+    rank default
+      stop 3
+    end select
+    return
+  end function sumf_ar
+
+  function sum_as(a) result(s)
+    integer, intent(in) :: a(:)
+  
+    integer :: s
+
+    s = sum(a)
+    return
+  end function sum_as
+
+  function sum_p_ds(a) result(s)
+    integer, pointer, intent(in) :: a(:)
+  
+    integer :: s
+
+    s = -1
+    if(associated(a))&
+      s = sum(a)
+    return
+  end function sum_p_ds
+
+  function sum_p_ar(a) result(s)
+    integer, pointer, intent(in) :: a(..)
+  
+    integer :: s
+
+    s = -1
+    select rank(a)
+    rank(1)
+      if(associated(a))&
+        s = sum(a)
+    rank default
+      stop 4
+    end select
+    return
+  end function sum_p_ar
+
+end program asa_p
+