Frustrated with dmd codegen bug

[jmh530]

On Tuesday, 24 April 2018 at 18:53:02 UTC, H. S. Teoh wrote:
> [snip]

That's definitely weird. Problem seems to go away with a static 
array. Seems somehow related to impl[0]. Re-writing that as 
*impl.ptr and breaking apart some of the logic might help narrow 
down the issue.


bool method(int v)
{
     int wordIdx = v >> 6;
     int bitIdx = v & 0b00111111;

     func();

     if (impl.length < wordIdx)
     {
         import std.stdio : writeln;
         auto temp1 = (1UL << bitIdx);
         writeln(1UL << bitIdx); //testing with v=200, prints 256
         writeln(*impl.ptr & 256); //prints 0
         auto temp2 = (*impl.ptr & temp1); //program killed
         //writeln(*impl.ptr & 256); //if uncommented, program not 
killed
         return temp2 != 0;
     }
     else
     {
         return false;
     }
}