1; RUN: opt %loadPolly -polly-optree -analyze < %s | FileCheck %s -match-full-lines
2;
3; Rematerialize a load.
4;
5; for (int j = 0; j < n; j += 1) {
6; bodyA:
7;   double val = B[j];
8;
9; bodyB:
10;   A[j] = val;
11; }
12;
13define void @func(i32 %n, double* noalias nonnull %A, double* noalias nonnull %B) {
14entry:
15  br label %for
16
17for:
18  %j = phi i32 [0, %entry], [%j.inc, %inc]
19  %j.cmp = icmp slt i32 %j, %n
20  br i1 %j.cmp, label %bodyA, label %exit
21
22    bodyA:
23      %B_idx = getelementptr inbounds double, double* %B, i32 %j
24      %val = load double, double* %B_idx
25      br label %bodyB
26
27    bodyB:
28      %A_idx = getelementptr inbounds double, double* %A, i32 %j
29      store double %val, double* %A_idx
30      br label %inc
31
32inc:
33  %j.inc = add nuw nsw i32 %j, 1
34  br label %for
35
36exit:
37  br label %return
38
39return:
40  ret void
41}
42
43
44; CHECK: Statistics {
45; CHECK:     Known loads forwarded: 1
46; CHECK:     Operand trees forwarded: 1
47; CHECK:     Statements with forwarded operand trees: 1
48; CHECK: }
49
50; CHECK:      Stmt_bodyB
51; CHECK-NEXT:         ReadAccess :=       [Reduction Type: NONE] [Scalar: 0]
52; CHECK-NEXT:             ;
53; CHECK-NEXT:        new: [n] -> { Stmt_bodyB[i0] -> MemRef_B[i0] };
54; CHECK-NEXT:         MustWriteAccess :=  [Reduction Type: NONE] [Scalar: 0]
55; CHECK-NEXT:             [n] -> { Stmt_bodyB[i0] -> MemRef_A[i0] };
56; CHECK-NEXT:         Instructions {
57; CHECK-NEXT:               %val = load double, double* %B_idx, align 8
58; CHECK-NEXT:               store double %val, double* %A_idx, align 8
59; CHECK-NEXT:         }
60