Eric Fiselier <[email protected]> writes: > Chandler mentioned that MSAN isn't very useful without an instrumented > standard library. This puts us in a pickle. Most of the time libc++ > is shipped to users instrumented. I really don't want the end-user to > see all these FPs. Without the extern template declarations they > don't appear. For that reason I think we should keep them out for now.
Just as a small data point, with an instrumented program and uninstrumented libc++ I see 575 msan failures without extern templates, and 724 with. If libc++ is instrumented, it's more like 200 (and many of these look like they're just because I've messed up using the instrumented library with the instrumented executable). I really don't think it's worth the cost of insantiating these very fundamental templates in *every single user* to work around a limitation in the memory sanitizer. This is an unreasonable amount of overhead for standard library types. _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
