1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-dce3" } */
3
4 struct X { float array[2]; };
5
6 struct X a,b;
7
foobar()8 float foobar () {
9 float s = 0;
10 unsigned int d;
11 struct X c;
12 for (d=0; d<2; ++d)
13 c.array[d] = a.array[d] * b.array[d];
14 for (d=0; d<2; ++d)
15 s+=c.array[d];
16 return s;
17 }
18
19 /* The temporary structure should have been promoted to registers
20 by FRE after the loops have been unrolled by the early unrolling pass. */
21 /* { dg-final { scan-tree-dump-not "c\.array" "dce3" } } */
22