https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58237
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Malcolm <dmalc...@gcc.gnu.org>: https://gcc.gnu.org/g:03dc3f26231cbf5733330028e14706f8ad77fd5a commit r10-5964-g03dc3f26231cbf5733330028e14706f8ad77fd5a Author: David Malcolm <dmalc...@redhat.com> Date: Fri Dec 20 11:20:44 2019 -0500 tree-diagnostic-path.cc: properly handle ad-hoc wrappers of UNKNOWN_LOCATION In the reproducer for PR analyzer/58237 I noticed that some events that were missing locations were also missing text; for example event 3 here: | 15 | while (fgets(buf, 10, fp) != NULL) | | ~ | | | | | (2) following 'false' branch... | 'f1': event 3 | |cc1: | The root cause is that the path_summary-printing code doesn't consider ad-hoc locations when looking for reserved locations, and so fails to detect an unknown location for the case where an unknown location has been wrapped into an ad-hoc location to record a block. This patch fixes the issue by using get_pure_location, thus looking through ad-hoc wrappers, improving the result to: | 15 | while (fgets(buf, 10, fp) != NULL) | | ~ | | | | | (2) following 'false' branch... | 'f1': event 3 | |cc1: | (3): ...to here | gcc/ChangeLog: * tree-diagnostic-path.cc (path_summary::event_range::print): When testing for UNKNOWN_LOCATION, look through ad-hoc wrappers using get_pure_location.
