https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53659
--- Comment #6 from PeteVine <tulipawn at gmail dot com> --- Testing different 32-bit codegen options in aarch32 mode on a Cortex A53, shows A15 is probably also affected. Full comparison below: $ for i in 8 5 7 9 15 ; do gcc -marm -Ofast -o c-ray-a$i c-ray-mt.c -lm -lpthread -mcpu=cortex-a$i; done $ for i in 8 5 7 9 15 ; do echo Cortex-A$i ; ./c-ray-a$i -t 32 -s 160x120 -r 8 -i sphfract -o output.ppm ; done Cortex-A8 c-ray-mt v1.1 Rendering took: 1 seconds (1660 milliseconds) Cortex-A5 c-ray-mt v1.1 Rendering took: 1 seconds (1638 milliseconds) Cortex-A7 c-ray-mt v1.1 Rendering took: 1 seconds (1645 milliseconds) Cortex-A9 c-ray-mt v1.1 Rendering took: 2 seconds (2027 milliseconds) Cortex-A15 c-ray-mt v1.1 Rendering took: 1 seconds (1922 milliseconds)
