https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121509
--- Comment #6 from David Binderman <dcb314 at hotmail dot com> --- Created attachment 62104 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62104&action=edit C source code Second test case: foundBugs $ rm -f ./a.out && $CC -w -O2 bug1114B.c && ./a.out checksum = B60777B8 foundBugs $ rm -f ./a.out && $CC -w -O2 -march=native bug1114B.c && ./a.out checksum = 56A00110 foundBugs $