[llvm-dev] RFC: Pass Execution Instrumentation interface

[David A. Greene via llvm-dev]

Fedor Sergeev <fedor.sergeev at azul.com> writes:

> My problem with debug counters is that they are ... well ...
> debug-only :)
> I was planning to use debug counters for the purpose of pass execution
> counting but then
> realized that it will not work in Release mode at all.
>
> But other than that debug counters seems to be a exactly a machinery
> designed for opt-in control of internal pass activity.

Why were debug counters made debug-only in the first place?  We
certainly use our -pass-max stuff in release builds.  Most of the time a
debug build is fine but for some codes a debug build is way too slow to
allow bisecting in a reasonable amount of time.

                              -David