https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69126
--- Comment #24 from Stephan Bergmann <sbergman at redhat dot com> --- (In reply to Manuel López-Ibáñez from comment #23) > That is weird. If you use "GCC diagnostic warning" instead of "ignored", you > should be able to see some changes in locations between -O0 and -O1 and > before/after the bug appeared, don't you? No. The reported locations remain unaffected (errors/warnings at test.cc:12:5 and test.cc:12:7, notes at test.cc:9:34). Just that (after replacing "ignored" with "warning") they get reported as errors with -O1 and r232893 included, and as warnings otherwise (i.e., either with -O0 and r232893 included, or with either -O0/1 and r232893 reverted).
