[Issue 11238] New: Codegen error when this is a ref parameter to the method

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=11238

           Summary: Codegen error when this is a ref parameter to the
                    method
           Product: D
           Version: D2
          Platform: All
        OS/Version: Windows
            Status: NEW
          Severity: regression
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: aliloko at gmail.com


--- Comment #0 from ponce <aliloko at gmail.com> 2013-10-12 17:24:30 PDT ---
When executing the program:

struct A
{
    void f()
    {
        g(this);
    }

    void g(ref A res)
    {
        res.m = [m[1], m[0]]; // swap
    }

    int[2] m;
}

void main()
{
    A a;
    a.m[0] = 4;
    a.m[1] = 6;
    writefln("%s,%s", a.m[0], a.m[1]);
    a.f();
    writefln("%s,%s", a.m[0], a.m[1]);
    a.f();
    writefln("%s,%s", a.m[0], a.m[1]);
}

Output is:
4,6
6,6
6,6


But I'm expecting this, that DMD 2.062 does output:
4,6
6,4
4,6


DMD 2.063, DMD 2.063.2 and DMD 2.064 beta all have this bug.

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