PR fortran/99169 - Do not clobber allocatable intent(out) dummy argument

gcc/fortran/ChangeLog:

	* trans-expr.c (gfc_conv_procedure_call): Do not add clobber to
	allocatable intent(out) argument.

gcc/testsuite/ChangeLog:

	* gfortran.dg/intent_optimize_3.f90: New test.

gcc/fortran/trans-expr.c

@@ -6077,6 +6077,7 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sym,
 			&& !fsym->attr.allocatable && !fsym->attr.pointer
 			&& !e->symtree->n.sym->attr.dimension
 			&& !e->symtree->n.sym->attr.pointer
+			&& !e->symtree->n.sym->attr.allocatable
 			/* See PR 41453.  */
 			&& !e->symtree->n.sym->attr.dummy
 			/* FIXME - PR 87395 and PR 41453  */

gcc/testsuite/gfortran.dg/intent_optimize_3.f90

@@ -0,0 +1,16 @@
+! { dg-do run }
+! { dg-options "-O2" }
+! PR99169 - Segfault passing allocatable scalar into intent(out) dummy argument
+
+program p
+  implicit none
+  integer, allocatable :: i
+  allocate (i)
+  call set (i)
+  if (i /= 5) stop 1
+contains
+  subroutine set (i)
+    integer, intent(out) :: i
+    i = 5
+  end subroutine set
+end program p