On 10/03/2017 05:36 AM, Martin Jambor wrote: > Hi, > > On Mon, Oct 02, 2017 at 01:27:05PM -0600, Sandra Loosemore wrote: >> Is there an idiom for target-specific back end code to ask the pass manager >> if a particular pass (e.g., "split1") has already run? > > (I might be wrong but) I don't think there is. But it might be a > useful thing to have generally, it would allow us for example to merge > early SRA and "late" SRA which differ in behavior only because the > first one must not touch aggregates that pass_stdarg will operate on. I was thinking that it would be useful to be able to make this kind of query as well.
> > And I guess the infrastructure to do that could be as simple as adding > a flag (or a counter) to class opt_pass that the pass manager would > set (or increment) when running the pass. And as a cleanup that flag ought to be able to replace some of the existing state flags. I'm thinking about reload_in_progress, reload_completed, cse_not_expected and likely others. Jeff
