Now that we're using LLVM 2.5, we can stop always running the CFGSimplification pass. The pass was originally added as a workaround for a LLVM 2.4 bug where debug info would reference labels that have been optimized away.

module bug11;

struct S
{
    int[4] arr;
}

S s=S([1,2,3,4]);

void main()
{
}