PR sanitizer/80110
* tsan.c: Include tree-eh.h.
(instrument_builtin_call): Call maybe_clean_eh_stmt or
maybe_clean_or_replace_eh_stmt where needed.
(instrument_memory_accesses): Add cfg_changed argument.
Call gimple_purge_dead_eh_edges on each block and set *cfg_changed
if it returned true.
(tsan_pass): Adjust caller. Return TODO_cleanup_cfg if cfg_changed.
* g++.dg/tsan/pr80110.C: New test.
From-SVN: r246399
