[Bug middle-end/48087] [4.5/4.6/4.7 Regression] -Wall -Werror adds warnings over and above those generated by -Wall

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48087

--- Comment #14 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-19 15:39:08 UTC ---
Thanks for explaining the seen_error mechanism, which I didn't know, but there
is something I still don't understand here. Consider PR49508 (I'm interested
because I opened it ;) : in that case we have only real errors, and then a
bugus warning. I don't see how fiddling with something at beginning of
gimple_push_cleanup could deal with such cases, and indeed if I hack it to
remove the early return, the warning triggers exactly in the same way. Or maybe
all this just indicated that  PR49508 really is a different issue, but I'm not
convinced...