https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81269
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- Created attachment 41660 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41660&action=edit Even more unusual behavior seen in my enhancement. Attached is another screenshot, this one showing even more unusual highlighting with my (not-yet-committed) enhancement to gimple-ssa-sprintf.c.