1 ; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s
3 ; CHECK: RAW dependences:
4 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 }
5 ; CHECK-NEXT: WAR dependences:
6 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 }
7 ; CHECK-NEXT: WAW dependences:
8 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 }
9 ; CHECK-NEXT: Reduction dependences:
10 ; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S2[1 + i0, i1] : (i0 >= 0 and 2 + i0 <= i1 <= 99) or (i0 <= 97 and 0 <= i1 < i0) }
13 ; for (int i = 0; i < 99; i++) {
15 ; for (int j = 0; j < 100; j++)
16 ; S2: sum[j] += i * j;
21 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
23 define void @f(i32* %sum) {
27 for.cond: ; preds = %for.inc8, %entry
28 %i.0 = phi i32 [ 0, %entry ], [ %inc9, %for.inc8 ]
29 %exitcond1 = icmp ne i32 %i.0, 99
30 br i1 %exitcond1, label %for.body, label %for.end10
32 for.body: ; preds = %for.cond
35 S1: ; preds = %for.body
36 %arrayidx = getelementptr inbounds i32, i32* %sum, i32 %i.0
37 %tmp = load i32, i32* %arrayidx, align 4
38 %add = add nsw i32 %tmp, 42
39 store i32 %add, i32* %arrayidx, align 4
42 for.cond1: ; preds = %for.inc, %S1
43 %j.0 = phi i32 [ 0, %S1 ], [ %inc, %for.inc ]
44 %exitcond = icmp ne i32 %j.0, 100
45 br i1 %exitcond, label %for.body3, label %for.end
47 for.body3: ; preds = %for.cond1
50 S2: ; preds = %for.body3
51 %mul = mul nsw i32 %i.0, %j.0
52 %arrayidx4 = getelementptr inbounds i32, i32* %sum, i32 %j.0
53 %tmp2 = load i32, i32* %arrayidx4, align 4
54 %add5 = add nsw i32 %tmp2, %mul
55 store i32 %add5, i32* %arrayidx4, align 4
58 for.inc: ; preds = %S2
59 %inc = add nsw i32 %j.0, 1
62 for.end: ; preds = %for.cond1
65 S3: ; preds = %for.end
66 %arrayidx6 = getelementptr inbounds i32, i32* %sum, i32 %i.0
67 %tmp3 = load i32, i32* %arrayidx6, align 4
68 %add7 = add nsw i32 %tmp3, 7
69 store i32 %add7, i32* %arrayidx6, align 4
72 for.inc8: ; preds = %S3
73 %inc9 = add nsw i32 %i.0, 1
76 for.end10: ; preds = %for.cond