1; RUN: opt %loadPolly \
2; RUN: -S -polly-codegen < %s | FileCheck %s
3;
4;    void f(int *A, int N) {
5;      for (int i = 0; i < N; i++)
6;        switch (A[i]) {
7;        case 0:
8;          A[i] += 1;
9;          break;
10;        case 1:
11;          A[i] += 2;
12;          break;
13;        }
14;    }
15;
16; CHECK: polly.stmt.for.body:
17; CHECK:   %scevgep = getelementptr i32, i32* %A, i64 %polly.indvar
18; CHECK:   %tmp1_p_scalar_ = load i32, i32* %scevgep, align 4
19; CHECK:   switch i32 %tmp1_p_scalar_, label %polly.stmt.sw.epilog.exit [
20; CHECK:     i32 0, label %polly.stmt.sw.bb
21; CHECK:     i32 1, label %polly.stmt.sw.bb.3
22; CHECK:   ]
23;
24target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
25
26define void @f(i32* %A, i32 %N) {
27entry:
28  %tmp = sext i32 %N to i64
29  br label %for.cond
30
31for.cond:                                         ; preds = %for.inc, %entry
32  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
33  %cmp = icmp slt i64 %indvars.iv, %tmp
34  br i1 %cmp, label %for.body, label %for.end
35
36for.body:                                         ; preds = %for.cond
37  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
38  %tmp1 = load i32, i32* %arrayidx, align 4
39  switch i32 %tmp1, label %sw.epilog [
40    i32 0, label %sw.bb
41    i32 1, label %sw.bb.3
42  ]
43
44sw.bb:                                            ; preds = %for.body
45  %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
46  %tmp2 = load i32, i32* %arrayidx2, align 4
47  %add = add nsw i32 %tmp2, 1
48  store i32 %add, i32* %arrayidx2, align 4
49  br label %sw.epilog
50
51sw.bb.3:                                          ; preds = %for.body
52  %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
53  %tmp3 = load i32, i32* %arrayidx5, align 4
54  %add6 = add nsw i32 %tmp3, 2
55  store i32 %add6, i32* %arrayidx5, align 4
56  br label %sw.epilog
57
58sw.epilog:                                        ; preds = %sw.bb.3, %sw.bb, %for.body
59  br label %for.inc
60
61for.inc:                                          ; preds = %sw.epilog
62  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
63  br label %for.cond
64
65for.end:                                          ; preds = %for.cond
66  ret void
67}
68