[ARM64/Linux] Inefficiencies when using initializing/cleaning unsafe pointers #12736
Description
For the following case with QuickJIT turned off
static int[] Test(int[] a)
{
unsafe {
fixed (int *a_ptr = a, b_ptr = b)
{
}
}
return a;
}
The initialization of the pointer correctly uses the zero register
F9000FBF str xzr, [fp,#24] // [V05 loc2]
F9000BBF str xzr, [fp,#16] // [V06 loc3]
However it doesn't use stp/ldp when it's possible to.
also when cleaning up the strs suddenly don't use xzr anymore
D2800001 mov x1, #0
F9000FA1 str x1, [fp,#24] // [V05 loc2]
F9000BA1 str x1, [fp,#16] // [V06 loc3]
category:cq
theme:basic-cq
skill-level:intermediate
cost:medium