https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85153
--- Comment #4 from Fabio Alemagna <falemagn at gmail dot com> --- @(In reply to Richard Biener from comment #3) > Confirmed. Not sure what the exact limit is but some of the warnings can > only be disabled at function granularity and placing the pragmas in macros > might interfere with this. But the preprocessed output shows the #pragma's all at the expected place and compiling the preprocessed output works as expected. I only ever delved into gcc's innards in one of its old releases and don't know if anything has changed meanwhile about this, but afaik the compiler always works on the preprocessed output, and if this still holds true, how can it be explained that invoking g++ on the un-preprocessed output produces a different result than invoking it on the preprocessed output?
