On Mon, Oct 26, 2009 at 09:40:06AM -0700, Andrew Pinski wrote: > Except (b) is correct as fold should not be modifiying the tree at > all. That is the whole point of fold_checksum_tree. We allow some > things to change like TYPE_VARIANTs and such but we should not allow a
The TYPE_VARIANTs case is just that a new variant can be added to a type, but that's not a change of the type. Similarly with other chains. The only actual change we allow is that a decl might have DECL_ASSEMBLER_NAME set during fold. Jakub