On Thursday, 19 February 2026 at 15:37:42 UTC, user1234 wrote:
Not very important but I'd like to know if it's possible... so
try this with DMD
```d
module runnable;
// The OK part
int ok1(){return 1;}
int ok2(){return 2;}
void OK()
{
ulong r;
asm
{
xor R8, R8;
call ok1;
add R8, RAX;
call ok2;
add R8, RAX;
mov r, R8;
}
assert(r == 3);
}
// The NG part
int ng(int i)() => i;
static foreach (i; 1..3)
alias T = ng!i;
void NG()
{
ulong r;
asm
{
xor R8, R8;
call _D8runnable__T2ngVii1ZQiFNaNbNiNfZi;
add R8, RAX;
call _D8runnable__T7ngVii2ZQnFNaNbNiNfZi;
add R8, RAX;
mov r, R8;
}
assert(r == 3);
}
int main()
{
OK();
NG();
return 0;
}
```
so you'll get
Error: function `runnable.NG` label
`_D8runnable__T2ngVii1ZQiFNaNbNiNfZi` is undefined
Error: function `runnable.NG` label
`_D8runnable__T7ngVii2ZQnFNaNbNiNfZi` is undefined
So to keep things simples the idea is to provide a valid
function identifier in the asm. I've used compiler explorer to
get the __valid__ mangled version
(https://godbolt.org/z/WYMqMhnWG). No luck.
Is that even possible ?
I never had any luck meta programming asm blocks; I believe your
best option is to mixin the whole block, in which case you cant
call templates and I dont think mangled names is the right
syntax. I believe youd have to give it a simple local name then
call that `alias F1=ng!1;` `call F1;`
looking at my hotreload gist I got this sort of thing working:
```d
// The NG part
int ng(int i)(){return i;}
static foreach (i; 1..3)
alias T = ng!i;
import std;
import core.stdc.stdlib;
import core.sys.posix.dlfcn;
void NG()
{
auto
f=cast(typeof(&ok1))dlsym(null,ng!2.mangleof);//"_D8runnable__T2ngVii1ZQiFNaNbNiNfZi");
f().writeln;
}
```
Id suggest trying to go this direction
https://gist.github.com/crazymonkyyy/e6edc498376da0501c851c8c339eba4b
