1 ; RUN: opt -basicaa %loadPolly -polly-dependences -analyze < %s | FileCheck %s
2 ; RUN: opt -basicaa %loadPolly -polly-dependences -polly-dependences-analysis-level=reference-wise -analyze < %s | FileCheck %s
3 ; RUN: opt -basicaa %loadPolly -polly-dependences -polly-dependences-analysis-level=access-wise -analyze < %s | FileCheck %s
5 ; Verify that only the inner reduction like accesses cause reduction dependences
7 ; CHECK: Reduction dependences:
8 ; CHECK-NEXT: { Stmt_for_body3[i0, i1] -> Stmt_for_body3[i0, 1 + i1] : 0 <= i0 <= 99 and 0 <= i1 <= 98 }
10 ; void f(int * restrict A, int * restrict sum) {
12 ; for (i = 0; i < 100; i++) {
14 ; for (j = 0; j < 100; j++) {
16 ; for (k = 0; k< 100; k++) {}
20 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
22 define void @f(i32* noalias %A, i32* noalias %sum) {
26 for.cond: ; preds = %for.inc11, %entry
27 %i.0 = phi i32 [ 0, %entry ], [ %inc12, %for.inc11 ]
28 %exitcond2 = icmp ne i32 %i.0, 100
29 br i1 %exitcond2, label %for.body, label %for.end13
31 for.body: ; preds = %for.cond
32 %tmp = load i32, i32* %sum, align 4
33 %mul = mul nsw i32 %tmp, 7
34 store i32 %mul, i32* %sum, align 4
37 for.cond1: ; preds = %for.inc8, %for.body
38 %j.0 = phi i32 [ 0, %for.body ], [ %inc9, %for.inc8 ]
39 %exitcond1 = icmp ne i32 %j.0, 100
40 br i1 %exitcond1, label %for.body3, label %for.end10
42 for.body3: ; preds = %for.cond1
43 %add = add nsw i32 %i.0, %j.0
44 %arrayidx = getelementptr inbounds i32, i32* %A, i32 %add
45 %tmp3 = load i32, i32* %arrayidx, align 4
46 %tmp4 = load i32, i32* %sum, align 4
47 %add4 = add nsw i32 %tmp4, %tmp3
48 store i32 %add4, i32* %sum, align 4
51 for.cond5: ; preds = %for.inc, %for.body3
52 %k.0 = phi i32 [ 0, %for.body3 ], [ %inc, %for.inc ]
53 %exitcond = icmp ne i32 %k.0, 100
54 br i1 %exitcond, label %for.body7, label %for.end
56 for.body7: ; preds = %for.cond5
59 for.inc: ; preds = %for.body7
60 %inc = add nsw i32 %k.0, 1
63 for.end: ; preds = %for.cond5
66 for.inc8: ; preds = %for.end
67 %inc9 = add nsw i32 %j.0, 1
70 for.end10: ; preds = %for.cond1
73 for.inc11: ; preds = %for.end10
74 %inc12 = add nsw i32 %i.0, 1
77 for.end13: ; preds = %for.cond