HsiangKai added a comment.
In https://reviews.llvm.org/D45045#1184313, @vext01 wrote:
> Looks like this was backed out (reverted) yesterday.
>
> I'm really interested in inserting DILabels from LLVM in my research project,
> so I hope it can be recovered.
You could apply it locally. In most cases, it works fine.
Currently, I still work on some problems when you use label in goto expression
and you do some calculation on it under optimization.
Following is the test case I try to resolve the problem.
int tab[9];
void execute(unsigned short *oip, unsigned short *ip)
{
int x = 0;
int *xp = tab;
base:
x++;
if (x == 4)
{
*xp = 0;
return;
}
*xp++ = ip - oip;
goto *(&&base + *ip++);
}
int main()
{
unsigned short ip[10];
int i;
for (i = 0; i < 10; i++)
ip[i] = 0;
execute(ip, ip);
return 0;
}
If you do not use label in such complex way, I think you could apply it
temporarily.
Repository:
rL LLVM
https://reviews.llvm.org/D45045
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
