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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