[LLVMdev] ScheduleDAG Question

David Greene dag at cray.com
Thu Sep 3 16:22:46 PDT 2009

On Thursday 03 September 2009 16:04, Eli Friedman wrote:

> My first step would be to make sure there's an appropriate edge in the
> selection DAG... there's a possibility something could get messed up
> by legalization or the dagcombiner.

I turned off dagcombine and it didn't help.

> Since scheduling and selection is mostly within a block, hopefully it
> wouldn't be too hard to come up with a testcase?

Yep, I've got a much reduced testcase now (and converted from Fortran
to C which makes things much easier to work with).  I'm going to test
against TOT and see if I see the same problem.


More information about the llvm-dev mailing list