xref: /llvm-project/polly/test/DependenceInfo/reduction_two_reductions_different_rloops.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa -polly-stmt-granularity=bb '-passes=print<polly-dependences>' -disable-output < %s | FileCheck %s
2;
3; CHECK:      RAW dependences:
4; CHECK-NEXT:     {  }
5; CHECK-NEXT: WAR dependences:
6; CHECK-NEXT:     {  }
7; CHECK-NEXT: WAW dependences:
8; CHECK-NEXT:     {  }
9; CHECK-NEXT: Reduction dependences:
10; CHECK-NEXT:     { Stmt_for_body3[i0, i1] -> Stmt_for_body3[o0, 1 + i0 + i1 - o0] : i0 >= 0 and i1 >= 0 and o0 >= -1022 + i0 + i1 and i0 <= o0 <= 1023 and o0 <= 1 + i0 }
11;
12; void f(int *restrict A, int *restrict B, int *restrict Values) {
13;   for (int i = 0; i < 1024; i++) {
14;     for (int j = 0; j < 1024; j++) {
15;       A[i] += Values[i + j - 1];
16;       B[j] += Values[i + j + 42];
17;     }
18;   }
19; }
20;
21target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
22
23define void @f(ptr noalias %A, ptr noalias %B, ptr noalias %Values)  {
24entry:
25  br label %for.cond
26
27for.cond:                                         ; preds = %for.inc11, %entry
28  %i.0 = phi i32 [ 0, %entry ], [ %inc12, %for.inc11 ]
29  %exitcond1 = icmp ne i32 %i.0, 1024
30  br i1 %exitcond1, label %for.body, label %for.end13
31
32for.body:                                         ; preds = %for.cond
33  br label %for.cond1
34
35for.cond1:                                        ; preds = %for.inc, %for.body
36  %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
37  %exitcond = icmp ne i32 %j.0, 1024
38  br i1 %exitcond, label %for.body3, label %for.end
39
40for.body3:                                        ; preds = %for.cond1
41  %add = add nsw i32 %i.0, %j.0
42  %sub = add nsw i32 %add, -1
43  %arrayidx = getelementptr inbounds i32, ptr %Values, i32 %sub
44  %tmp = load i32, ptr %arrayidx, align 4
45  %arrayidx4 = getelementptr inbounds i32, ptr %A, i32 %i.0
46  %tmp2 = load i32, ptr %arrayidx4, align 4
47  %add5 = add nsw i32 %tmp2, %tmp
48  store i32 %add5, ptr %arrayidx4, align 4
49  %add6 = add nsw i32 %i.0, %j.0
50  %add7 = add nsw i32 %add6, 42
51  %arrayidx8 = getelementptr inbounds i32, ptr %Values, i32 %add7
52  %tmp3 = load i32, ptr %arrayidx8, align 4
53  %arrayidx9 = getelementptr inbounds i32, ptr %B, i32 %j.0
54  %tmp4 = load i32, ptr %arrayidx9, align 4
55  %add10 = add nsw i32 %tmp4, %tmp3
56  store i32 %add10, ptr %arrayidx9, align 4
57  br label %for.inc
58
59for.inc:                                          ; preds = %for.body3
60  %inc = add nsw i32 %j.0, 1
61  br label %for.cond1
62
63for.end:                                          ; preds = %for.cond1
64  br label %for.inc11
65
66for.inc11:                                        ; preds = %for.end
67  %inc12 = add nsw i32 %i.0, 1
68  br label %for.cond
69
70for.end13:                                        ; preds = %for.cond
71  ret void
72}
73