[cfe-dev] [request] Improve debugging of ffast-math optimizations

Gonzalo BG via cfe-dev cfe-dev at lists.llvm.org
Mon Apr 25 01:45:02 PDT 2016

On Sun, Apr 24, 2016 at 5:51 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> On large codes, however, such information would be very noisy.

Indeed but I think this is a different issue. We have this problem with
-Rpass-analysis when inspecting e.g. vectorization information.

I think that using profiling information to improve this is a very novel
idea, but for me it would be enough to just have pragmas to turn this
information on/off on specific code sections, TUs, ... at a fine grained
level. Anyhow I think this is something that should be solved in a
consistent way for all diagnostics.
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