https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81818
--- Comment #3 from Andrew Roberts <andrewm.roberts at sky dot com> --- I've added the test results for the arm and aarch64 builds on Raspberry Pi3. These show compilation time, memory used, and object file size for: -O0, -Os, -O1, -O2, -O3 using gcc 5.4.0, 6.4.0, 7.2.0, and 8.0.0 7.2.0 is the rc2 version, 8.0.0 is latest weekly snapshot. The memory and compilation time issues are not speciific to any of the above gcc versions. It seems to have always been an issue with aarch64.
