Hello,
I have a 32-bit machine, but on top, it has a 64-bit move.
For the latter, it groups 2 32-bit registers in one 64-bit register.
Now, I have written a small test program :
long long int mem_read( long long int *a)
{
return(a[1000]) ;
}
and the compiler (gcc 9.2.0) implements that as 2 32-bit reads.
The "movdi" is defined, the optimizers are turned on, and in the
rtl dump, I see the "split2" step is splitting the "DI" in 2x "SI".
Any idea why this happens ?. Where should I look for this ?.
Best Regards,
Henri.
