1; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
2;
3; Verify we do not hoist I[c] without execution context because it
4; is executed in a statement with an invalid domain and it depends
5; on a parameter that was specialized by the domain.
6;
7; CHECK:         Invariant Accesses: {
8; CHECK-NEXT:            ReadAccess :=	[Reduction Type: NONE] [Scalar: 0]
9; CHECK-NEXT:                [c] -> { Stmt_if_then[i0] -> MemRef_I[-129] };
10; CHECK-NEXT:            Execution Context: [c] -> {  : false }
11; CHECK-NEXT:    }
12;
13; TODO: FIXME: We should remove the statement as it has an empty domain.
14; CHECK:      Stmt_if_then
15; CHECK-NEXT: Domain :=
16; CHECK-NEXT: [c] -> { Stmt_if_then[i0] : false };
17;
18;    int I[1024];
19;    void f(int *A, unsigned char c) {
20;      for (int i = 0; i < 10; i++)
21;        if ((signed char)(c + (unsigned char)1) == 127)
22;          A[i] += I[c];
23;        else
24;          A[i] = 0;
25;    }
26;
27target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
28
29@I = common global [1024 x i32] zeroinitializer, align 16
30
31define void @f(i32* %A, i8 zeroext %c) {
32entry:
33  br label %for.cond
34
35for.cond:                                         ; preds = %for.inc, %entry
36  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
37  %exitcond = icmp ne i64 %indvars.iv, 10
38  br i1 %exitcond, label %for.body, label %for.end
39
40for.body:                                         ; preds = %for.cond
41  %add = add i8 %c, 1
42  %cmp3 = icmp eq i8 %add, 128
43  %arrayidx6 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
44  br i1 %cmp3, label %if.then, label %if.else
45
46if.then:                                          ; preds = %for.body
47  %arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* @I, i64 0, i8 %c
48  %tmp = load i32, i32* %arrayidx, align 4
49  %tmp1 = load i32, i32* %arrayidx6, align 4
50  %add7 = add nsw i32 %tmp1, %tmp
51  store i32 %add7, i32* %arrayidx6, align 4
52  br label %for.inc
53
54if.else:                                           ; preds = %if.then, %for.body
55  store i32 0, i32* %arrayidx6, align 4
56  br label %for.inc
57
58for.inc:                                          ; preds = %if.else, if.then
59  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
60  br label %for.cond
61
62for.end:                                          ; preds = %for.cond
63  ret void
64}
65