https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82175
--- Comment #1 from Andrew Roberts <andrewm.roberts at sky dot com> --- This also fails on a Raspberry PI 3 running armv7 in the same way. Looks like the armv8 code has got mixed up with the armv7 code... The RPI3 has: 4x ARM Cortex-A53 rev 4 (0x4100d030) cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 4 (v7l) BogoMIPS : 38.40 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 ... It does work ok on a different armv8 (aarch64) system: Odroid-C2, this uses the same processors as the RPI3, but is running an aarch64 linux OS. 4 x ARM Cortex-A53 rev 4 (0x4100d030) cat /proc/cpuinfo processor : 0 BogoMIPS : 2.00 Features : fp asimd crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 ... On the ODROID-C2 in aarch64 mode: /usr/local/gcc/bin/gcc -Q --help=target | grep march -march=ARCH armv8-a
