https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83748
--- Comment #9 from Segher Boessenkool <segher at gcc dot gnu.org> --- [ Please remove irrelevant parts of the email when replying to bugzilla mail ]. https://gcc.gnu.org/r205896 tells you this commit resolved four PRs: PR middle-end/23623 PR middle-end/48784 PR middle-end/56341 PR middle-end/56997 You can access those at https://gcc.gnu.org/PR23623 etc. You'll have to dig a bit to see what GCC 4.8 version has this patch (if any).