https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113774
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> --- Created attachment 57341 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57341&action=edit another testcase, failing at -O1 I didn't check if the PR113753 patch fixes this. Output: $ x86_64-pc-linux-gnu-gcc -O testcase.c $ ./a.out Aborted