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1; Test that opaque constants are not creating an infinite DAGCombine loop
2; RUN: llc < %s
3; XFAIL: r600, xcore
4
5@a = common global i32* null, align 8
6@c = common global i32 0, align 4
7@b = common global i32* null, align 8
8
9; Function Attrs: nounwind ssp uwtable
10define void @fn() {
11  store i32* inttoptr (i64 68719476735 to i32*), i32** @a, align 8
12  %1 = load i32, i32* @c, align 4
13  %2 = sext i32 %1 to i64
14  %3 = lshr i64 %2, 12
15  %4 = and i64 %3, 68719476735
16  %5 = getelementptr inbounds i32, i32* null, i64 %4
17  store i32* %5, i32** @b, align 8
18  ret void
19}
20