[Bug middle-end/70773] Profiled sudoku solver slower due to lack of sdiv/udiv

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70773

--- Comment #14 from wilco at gcc dot gnu.org ---
(In reply to PeteVine from comment #11)
> I've just retested gcc7 on both ARM platforms. 
> 
> AArch64 gets a 3% improvement now, while ARMv7 reproduces the issue, just as
> before. I'm compiling/profiling on a Cortex A5 which could be the main
> reason behind all this, as it doesn't have hard division.

Can you try comparing the .S outputs on both the Cortex-A5 and Cortex-A53
system using exact same options, ie. -marm -mcpu=cortex-a5? Assuming you're
using the same GCC version, you should get identical .S files and the same
.gcda.