1 ; RUN: opt %loadNPMPolly -polly-process-unprofitable=false '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
5 ; Do not consider this a SCoP as we do not perform any optimizations for
6 ; loops with a small trip count.
9 ; for (int i = 0; i < 4; i++)
10 ; for (int j = 0; j < 4; j++)
11 ; for (int k = 0; k < 4; k++)
12 ; for (int l = 0; l < 4; l++)
13 ; A[i] += A[i] * A[i - 1] + A[i + 1];
16 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
18 define void @f(ptr %A) {
22 for.cond: ; preds = %for.inc.24, %entry
23 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc.24 ], [ 0, %entry ]
24 %exitcond5 = icmp ne i64 %indvars.iv, 4
25 br i1 %exitcond5, label %for.body, label %for.end.26
27 for.body: ; preds = %for.cond
30 for.cond.1: ; preds = %for.inc.21, %for.body
31 %j.0 = phi i32 [ 0, %for.body ], [ %inc22, %for.inc.21 ]
32 %exitcond2 = icmp ne i32 %j.0, 4
33 br i1 %exitcond2, label %for.body.3, label %for.end.23
35 for.body.3: ; preds = %for.cond.1
38 for.cond.4: ; preds = %for.inc.18, %for.body.3
39 %k.0 = phi i32 [ 0, %for.body.3 ], [ %inc19, %for.inc.18 ]
40 %exitcond1 = icmp ne i32 %k.0, 4
41 br i1 %exitcond1, label %for.body.6, label %for.end.20
43 for.body.6: ; preds = %for.cond.4
46 for.cond.7: ; preds = %for.inc, %for.body.6
47 %l.0 = phi i32 [ 0, %for.body.6 ], [ %inc, %for.inc ]
48 %exitcond = icmp ne i32 %l.0, 4
49 br i1 %exitcond, label %for.body.9, label %for.end
51 for.body.9: ; preds = %for.cond.7
52 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
53 %tmp = load i32, ptr %arrayidx, align 4
54 %tmp6 = add nsw i64 %indvars.iv, -1
55 %arrayidx11 = getelementptr inbounds i32, ptr %A, i64 %tmp6
56 %tmp7 = load i32, ptr %arrayidx11, align 4
57 %mul = mul nsw i32 %tmp, %tmp7
58 %tmp8 = add nuw nsw i64 %indvars.iv, 1
59 %arrayidx13 = getelementptr inbounds i32, ptr %A, i64 %tmp8
60 %tmp9 = load i32, ptr %arrayidx13, align 4
61 %add14 = add nsw i32 %mul, %tmp9
62 %arrayidx16 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
63 %tmp10 = load i32, ptr %arrayidx16, align 4
64 %add17 = add nsw i32 %tmp10, %add14
65 store i32 %add17, ptr %arrayidx16, align 4
68 for.inc: ; preds = %for.body.9
69 %inc = add nuw nsw i32 %l.0, 1
72 for.end: ; preds = %for.cond.7
75 for.inc.18: ; preds = %for.end
76 %inc19 = add nuw nsw i32 %k.0, 1
79 for.end.20: ; preds = %for.cond.4
82 for.inc.21: ; preds = %for.end.20
83 %inc22 = add nuw nsw i32 %j.0, 1
86 for.end.23: ; preds = %for.cond.1
89 for.inc.24: ; preds = %for.end.23
90 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
93 for.end.26: ; preds = %for.cond