re PR fortran/12840 ([4.0 only] Unable to find scalarization loop specifier)

	PR fortran/12840
	* trans.h (gfor_fndecl_internal_realloc): Declare.
	(gfor_fndecl_internal_realloc64): Declare.
	* trans-decl.c (gfor_fndecl_internal_realloc): New variable.
	(gfor_fndecl_internal_realloc64): New variable.
	(gfc_build_builtin_function_decls): Initialize them.
	* trans-array.h (gfc_trans_allocate_temp_array): Add a fourth argument.
	* trans-array.c (gfc_trans_allocate_array_storage): Add an argument
	to say whether the array can grow later.  Don't allocate the array
	on the stack if so.  Don't call malloc for zero-sized arrays.
	(gfc_trans_allocate_temp_array): Add a similar argument here.
	Pass it along to gfc_trans_allocate_array_storage.
	(gfc_get_iteration_count, gfc_grow_array): New functions.
	(gfc_iterator_has_dynamic_bounds): New function.
	(gfc_get_array_constructor_element_size): New function.
	(gfc_get_array_constructor_size): New function.
	(gfc_trans_array_ctor_element): Replace pointer argument with
	a descriptor tree.
	(gfc_trans_array_constructor_subarray): Likewise.  Take an extra
	argument to say whether the variable-sized part of the constructor
	must be allocated using realloc.  Grow the array when this
	argument is true.
	(gfc_trans_array_constructor_value): Likewise.
	(gfc_get_array_cons_size): Delete.
	(gfc_trans_array_constructor): If the loop bound has not been set,
	split the allocation into a static part and a dynamic part.  Set
	loop->to to the bounds for static part before allocating the
	temporary.  Adjust call to gfc_trans_array_constructor_value.
	(gfc_conv_loop_setup): Allow any constructor to determine the
	loop bounds.  Check whether the constructor has a dynamic size
	and prefer to use something else if so.  Expect the loop bound
	to be set later.  Adjust call to gfc_trans_allocate_temp_array.
	* trans-expr.c (gfc_conv_function_call): Adjust another call here.

From-SVN: r104073

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c
index 1b56840..73e02f0 100644
--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -73,6 +73,8 @@ tree gfc_static_ctors;
 
 tree gfor_fndecl_internal_malloc;
 tree gfor_fndecl_internal_malloc64;
+tree gfor_fndecl_internal_realloc;
+tree gfor_fndecl_internal_realloc64;
 tree gfor_fndecl_internal_free;
 tree gfor_fndecl_allocate;
 tree gfor_fndecl_allocate64;
@@ -1891,6 +1893,18 @@ gfc_build_builtin_function_decls (void)
 				     pvoid_type_node, 1, gfc_int8_type_node);
   DECL_IS_MALLOC (gfor_fndecl_internal_malloc64) = 1;
 
+  gfor_fndecl_internal_realloc =
+    gfc_build_library_function_decl (get_identifier
+				     (PREFIX("internal_realloc")),
+				     pvoid_type_node, 2, pvoid_type_node,
+				     gfc_int4_type_node);
+
+  gfor_fndecl_internal_realloc64 =
+    gfc_build_library_function_decl (get_identifier
+				     (PREFIX("internal_realloc64")),
+				     pvoid_type_node, 2, pvoid_type_node,
+				     gfc_int8_type_node);
+
   gfor_fndecl_internal_free =
     gfc_build_library_function_decl (get_identifier (PREFIX("internal_free")),
 				     void_type_node, 1, pvoid_type_node);