2 ; RUN: opt < %s -S -passes=loop-unroll -unroll-runtime=true -unroll-allow-remainder=true -unroll-count=4
4 ; Make sure that the runtime unroll does not break with a non-exiting latch.
5 define i32 @test(ptr %a, ptr %b, ptr %c, i64 %n) {
9 while.cond: ; preds = %while.body, %entry
10 %i.0 = phi i64 [ 0, %entry ], [ %inc, %while.body ]
11 %cmp = icmp slt i64 %i.0, %n
12 br i1 %cmp, label %while.body, label %while.end
14 while.body: ; preds = %while.cond
15 %arrayidx = getelementptr inbounds i32, ptr %b, i64 %i.0
16 %0 = load i32, ptr %arrayidx
17 %arrayidx1 = getelementptr inbounds i32, ptr %c, i64 %i.0
18 %1 = load i32, ptr %arrayidx1
19 %mul = mul nsw i32 %0, %1
20 %arrayidx2 = getelementptr inbounds i32, ptr %a, i64 %i.0
21 store i32 %mul, ptr %arrayidx2
22 %inc = add nsw i64 %i.0, 1
25 while.end: ; preds = %while.cond