1 ; RUN: opt -passes='loop-unroll-full' -disable-verify -disable-loop-unrolling=true --mtriple x86_64-pc-linux-gnu -S -o - %s | FileCheck %s
3 ; This checks that the loop full unroller will fire in the new pass manager
4 ; when forced via #pragma in the source (or annotation in the code).
6 ; Completely unroll the inner loop
11 ; Function Attrs: noinline nounwind optnone uwtable
12 define void @foo() local_unnamed_addr #0 {
14 %tmp = alloca [5 x i32*], align 16
15 br label %bb7.preheader
17 bb3.loopexit: ; preds = %bb10
18 %spec.select.lcssa = phi i32 [ %spec.select, %bb10 ]
19 %tmp5.not = icmp eq i32 %spec.select.lcssa, 0
20 br i1 %tmp5.not, label %bb24, label %bb7.preheader
22 bb7.preheader: ; preds = %bb3.loopexit, %bb
23 %tmp1.06 = phi i32 [ 5, %bb ], [ %spec.select.lcssa, %bb3.loopexit ]
26 bb10: ; preds = %bb10, %bb7.preheader
27 %indvars.iv = phi i64 [ 0, %bb7.preheader ], [ %indvars.iv.next, %bb10 ]
28 %tmp1.14 = phi i32 [ %tmp1.06, %bb7.preheader ], [ %spec.select, %bb10 ]
29 %tmp13 = getelementptr inbounds [5 x i32*], [5 x i32*]* %tmp, i64 0, i64 %indvars.iv
30 %tmp14 = load i32*, i32** %tmp13, align 8
31 %tmp15.not = icmp ne i32* %tmp14, null
32 %tmp18 = sext i1 %tmp15.not to i32
33 %spec.select = add nsw i32 %tmp1.14, %tmp18
34 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
35 %exitcond.not = icmp eq i64 %indvars.iv.next, 5
36 br i1 %exitcond.not, label %bb3.loopexit, label %bb10, !llvm.loop !1
38 bb24: ; preds = %bb3.loopexit
42 attributes #0 = { nounwind uwtable }
44 !llvm.module.flags = !{!0}
46 !0 = !{i32 1, !"wchar_size", i32 4}
47 !1 = distinct !{!1, !2}
48 !2 = !{!"llvm.loop.unroll.full"}