On Mon, 2009-03-30 at 13:53 -0700, Neil Vachharajani wrote: > Hello, > > I'm working on a patch which makes FDO profile data more robust to > source changes. Before I sent the patch to the list for review, I was > wondering how to write a test for this situation. In particular, what > I would like to have is two source files which are similar but not the > same. The first should be compiled and run to generate profile data, > and the generated .gcda file should be used to compile the second > file. I wasn't quite sure how to do this within the DejaGNU framework > and was wondering if anyone had some pointers.
Existing FDO tests use lib/profopt.exp via g++.dg/bprob/bprob.exp and gcc.misc-tests/bprob.exp. You can copy those .exp files to variants that use different versions of the source file for the two compiles. Let me know if you have further questions. Janis
