1; RUN: opt %loadPolly -polly-mse -analyze < %s | FileCheck %s
2;
3; Verify that the accesses are correctly expanded for MemoryKind::Array
4;
5; Original source code :
6;
7; #define Ni 2000
8; #define Nj 3000
9;
10; double mse(double A[Ni], double B[Nj]) {
11;   int i;
12;   double tmp = 6;
13;   for (i = 0; i < Ni; i++) {
14;     for (int j = 0; j<Nj; j++) {
15;       B[j] = j;
16;     }
17;     A[i] = B[i];
18;   }
19;   return tmp;
20; }
21;
22; Check if the expanded SAI are created
23;
24; CHECK: double MemRef_B_Stmt_for_body3_expanded[2000][3000]; // Element size 8
25;
26; Check if the memory accesses are modified
27;
28; CHECK: new: { Stmt_for_body3[i0, i1] -> MemRef_B_Stmt_for_body3_expanded[i0, i1] };
29; CHECK: new: { Stmt_for_end[i0] -> MemRef_B_Stmt_for_body3_expanded[i0, i0] };
30;
31target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
32target triple = "x86_64-unknown-linux-gnu"
33
34define double @mse(double* %A, double* %B) {
35entry:
36  br label %entry.split
37
38entry.split:                                      ; preds = %entry
39  br label %for.body
40
41for.body:                                         ; preds = %entry.split, %for.end
42  %indvars.iv3 = phi i64 [ 0, %entry.split ], [ %indvars.iv.next4, %for.end ]
43  br label %for.body3
44
45for.body3:                                        ; preds = %for.body, %for.body3
46  %indvars.iv = phi i64 [ 0, %for.body ], [ %indvars.iv.next, %for.body3 ]
47  %0 = trunc i64 %indvars.iv to i32
48  %conv = sitofp i32 %0 to double
49  %arrayidx = getelementptr inbounds double, double* %B, i64 %indvars.iv
50  store double %conv, double* %arrayidx, align 8
51  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
52  %exitcond = icmp ne i64 %indvars.iv.next, 3000
53  br i1 %exitcond, label %for.body3, label %for.end
54
55for.end:                                          ; preds = %for.body3
56  %arrayidx5 = getelementptr inbounds double, double* %B, i64 %indvars.iv3
57  %1 = bitcast double* %arrayidx5 to i64*
58  %2 = load i64, i64* %1, align 8
59  %arrayidx7 = getelementptr inbounds double, double* %A, i64 %indvars.iv3
60  %3 = bitcast double* %arrayidx7 to i64*
61  store i64 %2, i64* %3, align 8
62  %indvars.iv.next4 = add nuw nsw i64 %indvars.iv3, 1
63  %exitcond5 = icmp ne i64 %indvars.iv.next4, 2000
64  br i1 %exitcond5, label %for.body, label %for.end10
65
66for.end10:                                        ; preds = %for.end
67  ret double 6.000000e+00
68}
69