1; RUN: opt %loadPolly -polly-print-ast -disable-output < %s | FileCheck %s
2; XFAIL: *
3
4;#include "limits.h"
5;#define N 20
6;
7;int main () {
8;  unsigned int i;
9;  unsigned int A[N];
10;
11;  A[0] = 0;
12;
13;  __sync_synchronize();
14;
15;  for (i = 0; i < UINT_MAX; i++)
16;    A[0] = i;
17;
18;  __sync_synchronize();
19;
20;  if (A[0] == UINT_MAX - 1)
21;    return 0;
22;  else
23;    return 1;
24;}
25
26target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
27
28define i32 @main() nounwind {
29entry:
30  %A = alloca [20 x i32], align 4                 ; <[20 x i32]*> [#uses=3]
31  %arraydecay = getelementptr inbounds [20 x i32], [20 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
32  %arrayidx = getelementptr inbounds i32, i32* %arraydecay, i64 0 ; <i32*> [#uses=1]
33  store i32 0, i32* %arrayidx
34  fence seq_cst
35  br label %for.cond
36
37for.cond:                                         ; preds = %for.inc, %entry
38  %0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]  ; <i32> [#uses=3]
39  %exitcond = icmp ne i32 %0, -1                  ; <i1> [#uses=1]
40  br i1 %exitcond, label %for.body, label %for.end
41
42for.body:                                         ; preds = %for.cond
43  %arraydecay2 = getelementptr inbounds [20 x i32], [20 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
44  %arrayidx3 = getelementptr inbounds i32, i32* %arraydecay2, i64 0 ; <i32*> [#uses=1]
45  store i32 %0, i32* %arrayidx3
46  br label %for.inc
47
48for.inc:                                          ; preds = %for.body
49  %inc = add i32 %0, 1                            ; <i32> [#uses=1]
50  br label %for.cond
51
52for.end:                                          ; preds = %for.cond
53  fence seq_cst
54  %arraydecay5 = getelementptr inbounds [20 x i32], [20 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
55  %arrayidx6 = getelementptr inbounds i32, i32* %arraydecay5, i64 0 ; <i32*> [#uses=1]
56  %tmp7 = load i32, i32* %arrayidx6                    ; <i32> [#uses=1]
57  %cmp8 = icmp eq i32 %tmp7, -2                   ; <i1> [#uses=1]
58  br i1 %cmp8, label %if.then, label %if.else
59
60if.then:                                          ; preds = %for.end
61  br label %return
62
63if.else:                                          ; preds = %for.end
64  br label %return
65
66return:                                           ; preds = %if.else, %if.then
67  %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.else ] ; <i32> [#uses=1]
68  ret i32 %retval.0
69}
70
71; CHECK:for (c2=0;
72