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236
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1 ; RUN: opt %loadPolly -polly-print-ast -disable-output < %s | FileCheck %s
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2
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3 ;#define N 20
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4 ;#include "limits.h"
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5 ;
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6 ;int main () {
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7 ; int i;
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8 ; int A[N];
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9 ;
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10 ; A[0] = 0;
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11 ;
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12 ; __sync_synchronize();
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13 ;
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14 ; for (i = 0; i < INT_MAX; i++)
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15 ; A[0] = i;
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16 ;
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17 ; __sync_synchronize();
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18 ;
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19 ; if (A[0] == INT_MAX - 1)
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20 ; return 0;
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21 ; else
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22 ; return 1;
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23 ;}
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24
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25 target 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"
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26
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27 define i32 @main() nounwind {
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28 entry:
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252
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29 %A = alloca [20 x i32], align 4 ; <ptr> [#uses=3]
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30 %arraydecay = getelementptr inbounds [20 x i32], ptr %A, i32 0, i32 0 ; <ptr> [#uses=1]
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31 %arrayidx = getelementptr inbounds i32, ptr %arraydecay, i64 0 ; <ptr> [#uses=1]
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32 store i32 0, ptr %arrayidx
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236
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33 fence seq_cst
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34 br label %for.cond
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35
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36 for.cond: ; preds = %for.inc, %entry
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37 %0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] ; <i32> [#uses=3]
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38 %exitcond = icmp ne i32 %0, 2147483647 ; <i1> [#uses=1]
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39 br i1 %exitcond, label %for.body, label %for.end
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40
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41 for.body: ; preds = %for.cond
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252
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42 %arraydecay2 = getelementptr inbounds [20 x i32], ptr %A, i32 0, i32 0 ; <ptr> [#uses=1]
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43 %arrayidx3 = getelementptr inbounds i32, ptr %arraydecay2, i64 0 ; <ptr> [#uses=1]
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44 store i32 %0, ptr %arrayidx3
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236
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45 br label %for.inc
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46
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47 for.inc: ; preds = %for.body
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48 %inc = add nsw i32 %0, 1 ; <i32> [#uses=1]
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49 br label %for.cond
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50
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51 for.end: ; preds = %for.cond
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52 fence seq_cst
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252
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53 %arraydecay5 = getelementptr inbounds [20 x i32], ptr %A, i32 0, i32 0 ; <ptr> [#uses=1]
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54 %arrayidx6 = getelementptr inbounds i32, ptr %arraydecay5, i64 0 ; <ptr> [#uses=1]
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55 %tmp7 = load i32, ptr %arrayidx6 ; <i32> [#uses=1]
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236
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56 %cmp8 = icmp eq i32 %tmp7, 2147483646 ; <i1> [#uses=1]
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57 br i1 %cmp8, label %if.then, label %if.else
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58
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59 if.then: ; preds = %for.end
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60 br label %return
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61
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62 if.else: ; preds = %for.end
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63 br label %return
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64
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65 return: ; preds = %if.else, %if.then
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66 %retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.else ] ; <i32> [#uses=1]
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67 ret i32 %retval.0
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68 }
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69
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70 ; CHECK: for (int c0 = 0; c0 <= 2147483646; c0 += 1)
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71 ; CHECK: Stmt_for_body(c0);
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