On 23/09/2007, Richard Guenther <[EMAIL PROTECTED]> wrote: > On 23 Sep 2007 09:54:29 -0700, Ian Lance Taylor <[EMAIL PROTECTED]> wrote: > > > > Well, if the -fno-tree-salias flag now causes wrong-code bugs then I > > certainly agree that it should be eliminated. > > I didn't say that ;) But I certainly expect salias to expose/hide bugs > there because MPT grouping will be changed. At the moment > -fno-tree-salias simply ICEs. >
As I understand it, -fno-tree-salias ICEs because a pass after salias needs alias information PROP_alias but no pass has executed TODO_rebuild_alias. We just need to build the alias information regardless of salias by adding a TODO_rebuild_alias to an earlier pass that is unconditionally executed (apply_inline?) or to a dummy pass dummy_todo_alias. Am I wrong? I have the same problem when I try to enable SSA at O0 and my current solution is the dummy pass. Cheers, Manuel.
