On 3/14/20 1:14 AM, Richard Henderson wrote:
> I think you should have 4 versions of aadd8, for each of the rounding modes,
>
>> +RVVCALL(OPIVV2_ENV, vaadd_vv_b, OP_SSS_B, H1, H1, H1, aadd8)
>
> then use this, or something like it, to define 4 functions containing main
> loops, which will get the helper above inlined.
Alternately, a set of inlines, where a (constant) vxrm is passed down from
above.
> Then use a final outermost wrapper to select one of the 4 functions based on
> env->vxrm.
The outermost wrapper could look like
switch (env->vxrm) {
case 0: somefunc(some, args, 0); break;
case 1: somefunc(some, args, 1); break;
case 2: somefunc(some, args, 2); break;
default: somefunc(some, args, 3); break;
}
so that somefunc (and its subroutines) are expanded with a constant, and we
switch on that constant at the outermost level.
r~
