1 ; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s
3 ; CHECK: RAW dependences:
4 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S3[o0] : i1 <= 1 - i0 and -i1 < o0 <= 1 and o0 <= 1 + i0 - i1; Stmt_S3[i0] -> Stmt_S2[o0, 1 - i0] : 0 <= i0 <= 1 and i0 < o0 <= 98; Stmt_S1[i0] -> Stmt_S3[2 + i0] : 0 <= i0 <= 96 }
5 ; CHECK-NEXT: WAR dependences:
6 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S3[o0] : i1 <= 1 - i0 and -i1 < o0 <= 1 and o0 <= 1 + i0 - i1; Stmt_S3[i0] -> Stmt_S2[o0, 1 - i0] : 0 <= i0 <= 1 and i0 < o0 <= 98; Stmt_S1[i0] -> Stmt_S3[2 + i0] : 0 <= i0 <= 96 }
7 ; CHECK-NEXT: WAW dependences:
8 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S3[o0] : i1 <= 1 - i0 and -i1 < o0 <= 1 and o0 <= 1 + i0 - i1; Stmt_S3[i0] -> Stmt_S2[o0, 1 - i0] : 0 <= i0 <= 1 and i0 < o0 <= 98; Stmt_S1[i0] -> Stmt_S3[2 + i0] : 0 <= i0 <= 96 }
9 ; CHECK-NEXT: Reduction dependences:
10 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S2[1 + i0, i1] : 0 <= i0 <= 97 and i1 >= 0 and 2 - i0 <= i1 <= 98 - i0; Stmt_S2[0, 0] -> Stmt_S2[1, 0] }
14 ; for (i = 0; i < 99; i++) {
15 ; S1: sum[i + 1] += 42;
16 ; for (j = i; j < 100; j++)
17 ; S2: sum[i - j] += i * j;
18 ; S3: sum[i - 1] += 7;
22 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
24 define void @f(i32* %sum) {
28 for.cond: ; preds = %for.inc10, %entry
29 %i.0 = phi i32 [ 0, %entry ], [ %inc11, %for.inc10 ]
30 %exitcond1 = icmp ne i32 %i.0, 99
31 br i1 %exitcond1, label %for.body, label %for.end12
33 for.body: ; preds = %for.cond
36 S1: ; preds = %for.body
37 %add = add nsw i32 %i.0, 1
38 %arrayidx = getelementptr inbounds i32, i32* %sum, i32 %add
39 %tmp = load i32, i32* %arrayidx, align 4
40 %add1 = add nsw i32 %tmp, 42
41 store i32 %add1, i32* %arrayidx, align 4
44 for.cond2: ; preds = %for.inc, %S1
45 %j.0 = phi i32 [ %i.0, %S1 ], [ %inc, %for.inc ]
46 %exitcond = icmp ne i32 %j.0, 100
47 br i1 %exitcond, label %for.body4, label %for.end
49 for.body4: ; preds = %for.cond2
52 S2: ; preds = %for.body4
53 %mul = mul nsw i32 %i.0, %j.0
54 %sub = sub nsw i32 %i.0, %j.0
55 %arrayidx5 = getelementptr inbounds i32, i32* %sum, i32 %sub
56 %tmp2 = load i32, i32* %arrayidx5, align 4
57 %add6 = add nsw i32 %tmp2, %mul
58 store i32 %add6, i32* %arrayidx5, align 4
61 for.inc: ; preds = %S2
62 %inc = add nsw i32 %j.0, 1
65 for.end: ; preds = %for.cond2
68 S3: ; preds = %for.end
69 %sub7 = add nsw i32 %i.0, -1
70 %arrayidx8 = getelementptr inbounds i32, i32* %sum, i32 %sub7
71 %tmp3 = load i32, i32* %arrayidx8, align 4
72 %add9 = add nsw i32 %tmp3, 7
73 store i32 %add9, i32* %arrayidx8, align 4
76 for.inc10: ; preds = %S3
77 %inc11 = add nsw i32 %i.0, 1
80 for.end12: ; preds = %for.cond