1; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
2;
3; Verify that we only have one parameter and one invariant load for all
4; three loads that occure in the region but actually access the same
5; location. Also check that the execution context is the most generic
6; one, e.g., here the universal set.
7;
8; CHECK:      Invariant Accesses: {
9; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
10; CHECK-NEXT:             [bounds0l0] -> { Stmt_for_cond_4[i0, i1, i2] -> MemRef_bounds[0] };
11; CHECK-NEXT:         Execution Context: [bounds0l0] -> {  :  }
12; CHECK-NEXT: }
13;
14; CHECK:      p0: %bounds0l0
15; CHECK-NOT:  p1
16;
17; CHECK:      Statements {
18; CHECK-NEXT:     Stmt_for_body_6
19; CHECK-NEXT:         Domain :=
20; CHECK-NEXT:             [bounds0l0] -> { Stmt_for_body_6[i0, i1, i2] : 0 <= i0 < bounds0l0 and 0 <= i1 < bounds0l0 and 0 <= i2 < bounds0l0 };
21; CHECK-NEXT:         Schedule :=
22; CHECK-NEXT:             [bounds0l0] -> { Stmt_for_body_6[i0, i1, i2] -> [i0, i1, i2] };
23; CHECK-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
24; CHECK-NEXT:             [bounds0l0] -> { Stmt_for_body_6[i0, i1, i2] -> MemRef_data[i0, i1, i2] };
25; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: NONE] [Scalar: 0]
26; CHECK-NEXT:             [bounds0l0] -> { Stmt_for_body_6[i0, i1, i2] -> MemRef_data[i0, i1, i2] };
27; CHECK-NEXT: }
28;
29;    int bounds[1];
30;    double data[1024][1024][1024];
31;
32;    void foo() {
33;      int i, j, k;
34;      for (k = 0; k < bounds[0]; k++)
35;        for (j = 0; j < bounds[0]; j++)
36;          for (i = 0; i < bounds[0]; i++)
37;            data[k][j][i] += i + j + k;
38;    }
39;
40target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
41
42@bounds = common global [1 x i32] zeroinitializer, align 4
43@data = common global [1024 x [1024 x [1024 x double]]] zeroinitializer, align 16
44
45define void @foo() {
46entry:
47  br label %for.cond
48
49for.cond:                                         ; preds = %for.inc.16, %entry
50  %indvars.iv5 = phi i64 [ %indvars.iv.next6, %for.inc.16 ], [ 0, %entry ]
51  %bounds0l0 = load i32, i32* getelementptr inbounds ([1 x i32], [1 x i32]* @bounds, i64 0, i64 0), align 4
52  %tmp7 = sext i32 %bounds0l0 to i64
53  %cmp = icmp slt i64 %indvars.iv5, %tmp7
54  br i1 %cmp, label %for.body, label %for.end.18
55
56for.body:                                         ; preds = %for.cond
57  br label %for.cond.1
58
59for.cond.1:                                       ; preds = %for.inc.13, %for.body
60  %indvars.iv3 = phi i64 [ %indvars.iv.next4, %for.inc.13 ], [ 0, %for.body ]
61  %bounds0l1 = load i32, i32* getelementptr inbounds ([1 x i32], [1 x i32]* @bounds, i64 0, i64 0), align 4
62  %tmp9 = sext i32 %bounds0l1 to i64
63  %cmp2 = icmp slt i64 %indvars.iv3, %tmp9
64  br i1 %cmp2, label %for.body.3, label %for.end.15
65
66for.body.3:                                       ; preds = %for.cond.1
67  br label %for.cond.4
68
69for.cond.4:                                       ; preds = %for.inc, %for.body.3
70  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %for.body.3 ]
71  %bounds0l2 = load i32, i32* getelementptr inbounds ([1 x i32], [1 x i32]* @bounds, i64 0, i64 0), align 4
72  %tmp11 = sext i32 %bounds0l2 to i64
73  %cmp5 = icmp slt i64 %indvars.iv, %tmp11
74  br i1 %cmp5, label %for.body.6, label %for.end
75
76for.body.6:                                       ; preds = %for.cond.4
77  %tmp12 = add nsw i64 %indvars.iv, %indvars.iv3
78  %tmp13 = add nsw i64 %tmp12, %indvars.iv5
79  %tmp14 = trunc i64 %tmp13 to i32
80  %conv = sitofp i32 %tmp14 to double
81  %arrayidx11 = getelementptr inbounds [1024 x [1024 x [1024 x double]]], [1024 x [1024 x [1024 x double]]]* @data, i64 0, i64 %indvars.iv5, i64 %indvars.iv3, i64 %indvars.iv
82  %tmp15 = load double, double* %arrayidx11, align 8
83  %add12 = fadd double %tmp15, %conv
84  store double %add12, double* %arrayidx11, align 8
85  br label %for.inc
86
87for.inc:                                          ; preds = %for.body.6
88  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
89  br label %for.cond.4
90
91for.end:                                          ; preds = %for.cond.4
92  br label %for.inc.13
93
94for.inc.13:                                       ; preds = %for.end
95  %indvars.iv.next4 = add nuw nsw i64 %indvars.iv3, 1
96  br label %for.cond.1
97
98for.end.15:                                       ; preds = %for.cond.1
99  br label %for.inc.16
100
101for.inc.16:                                       ; preds = %for.end.15
102  %indvars.iv.next6 = add nuw nsw i64 %indvars.iv5, 1
103  br label %for.cond
104
105for.end.18:                                       ; preds = %for.cond
106  ret void
107}
108