1; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
2;
3; Check that we do not try to preload *I and assume p != 42.
4;
5; CHECK:      Invariant Accesses: {
6; CHECK-NEXT: }
7;
8; CHECK:      Invalid Context:
9; CHECK-NEXT: [N, p] -> {  : false }
10;
11; CHECK:      Stmt_if_then__TO__if_end
12; CHECK-NEXT:   Domain :=
13; CHECK-NEXT:   [N, p] -> { Stmt_if_then__TO__if_end[i0] : p = 42 and 0 <= i0 < N };
14;
15;    void f(int *A, int *I, int N, int p, int q) {
16;      for (int i = 0; i < N; i++) {
17;        if (p == 42) {
18;          *I = 0;
19;          if (*I == q)
20;            A[i] *= 2;
21;        }
22;        A[i]++;
23;      }
24;    }
25;
26target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
27
28define void @f(i32* %A, i32* %I, i32 %N, i32 %p, i32 %q) {
29entry:
30  %tmp = sext i32 %N to i64
31  br label %for.cond
32
33for.cond:                                         ; preds = %for.inc, %entry
34  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
35  %cmp = icmp slt i64 %indvars.iv, %tmp
36  br i1 %cmp, label %for.body, label %for.end
37
38for.body:                                         ; preds = %for.cond
39  %cmp1 = icmp eq i32 %p, 42
40  br i1 %cmp1, label %if.then, label %if.end4
41
42if.then:                                          ; preds = %for.body
43  store i32 0, i32* %I, align 4
44  %tmp1 = load i32, i32* %I, align 4
45  %cmp2 = icmp eq i32 %tmp1, %q
46  br i1 %cmp2, label %if.then3, label %if.end
47
48if.then3:                                         ; preds = %if.then
49  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
50  %tmp2 = load i32, i32* %arrayidx, align 4
51  %mul = shl nsw i32 %tmp2, 1
52  store i32 %mul, i32* %arrayidx, align 4
53  br label %if.end
54
55if.end:                                           ; preds = %if.then3, %if.then
56  br label %if.end4
57
58if.end4:                                          ; preds = %if.end, %for.body
59  %arrayidx6 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
60  %tmp3 = load i32, i32* %arrayidx6, align 4
61  %inc = add nsw i32 %tmp3, 1
62  store i32 %inc, i32* %arrayidx6, align 4
63  br label %for.inc
64
65for.inc:                                          ; preds = %if.end4
66  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
67  br label %for.cond
68
69for.end:                                          ; preds = %for.cond
70  ret void
71}
72