https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91616
--- Comment #1 from Mikael Pettersson <mikpelinux at gmail dot com> --- Please provide a self-contained test case with a built-in check of its correctness, or at least a printout of the computed array. I did the latter locally, and data_array[] looks correct to me (it contains 0xcafebebedeadbeef up to 0xcafebebedeadbefe as one would expect from the source code).