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/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-optimized" } */
union A
{
float a;
};
float t(float a)
{
union A a1, a2, a3;
int i;
a1.a = a;
for(i = 0; i<100; i++)
{
a2 = a1;
a2.a += a;
a1 = a2;
}
a3 = a1;
return a3.a;
}
/* { dg-final { scan-tree-dump-times "union" 0 "optimized"} } */
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