https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121687
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> --- Flag -ftree-loop-vectorize seems enough to provoke the bug: foundBugs $ ~/gcc/results/bin/gcc -w -O1 bug1117.c && ./a.out checksum = B0C5658A foundBugs $ ~/gcc/results/bin/gcc -w -O1 -ftree-loop-vectorize bug1117.c && ./a.out checksum = 693B9C6B foundBugs $
