[Issue 3914] Struct as argument that fits in register has member accessed wrong

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3914



--- Comment #1 from Don <clugdbug at yahoo.com.au> 2010-03-11 12:51:37 PST ---
Here's a slightly reduced test case which doesn't require any compiler flags. 
Not a regression, fails even on DMD0.165.
It's a problem with variadic function parameters and fastpar arguments.
------------
struct SS {
    char a, b, c, d;
}

void show(char[] args...) {
    assert(args[0]=='A');
    assert(args[1]=='L');
    assert(args[2]=='D');
    assert(args[3]=='O');
}

void A( SS ss ) {
    show( ss.a, ss.b, ss.c, ss.d );
}

void main(){
    SS ss3;
    ss3.a = 'A';
    ss3.b = 'L';
    ss3.c = 'D';
    ss3.d = 'O';
    A( ss3 );
}

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