https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92382
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Feel free to open an issue against GDB or GCC< wherever the debug info issue is e.g. for the #c4 testcase. Because certainly I see 0 as the value of v even when it should be 1 or 2.