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236
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1 ; RUN: opt %loadPolly -polly-print-delicm -pass-remarks-missed=polly-delicm -disable-output < %s 2>&1 | FileCheck %s
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150
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2 ;
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3 ; void func(double *A) {
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4 ; for (int j = 0; j < 2; j += 1) { /* outer */
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5 ; memset(A[j], 0, sizeof(double));
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6 ; double phi = 0.0;
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7 ; for (int i = 0; i < 4; i += 1) /* reduction */
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8 ; phi += 4.2;
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9 ; if (phi >= 0.0)
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10 ; A[j] = phi;
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11 ; }
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12 ; }
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13 ;
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14
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252
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15 define void @func(ptr noalias nonnull %A) {
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150
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16 entry:
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17 br label %outer.preheader
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18
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19 outer.preheader:
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20 br label %outer.for
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21
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22 outer.for:
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23 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]
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24 %j.cmp = icmp slt i32 %j, 2
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25 br i1 %j.cmp, label %reduction.preheader, label %outer.exit
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26
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27
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28 reduction.preheader:
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29 br label %reduction.for
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30
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31 reduction.for:
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32 %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]
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33 %phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]
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34 %i.cmp = icmp slt i32 %i, 4
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35 br i1 %i.cmp, label %body, label %reduction.exit
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36
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37
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38
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39 body:
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40 %add = fadd double %phi, 4.2
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41 br label %reduction.inc
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42
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43
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44
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45 reduction.inc:
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46 %i.inc = add nuw nsw i32 %i, 1
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47 br label %reduction.for
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48
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49 reduction.exit:
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50 %phi.cmp = fcmp ogt double %phi, 0.0
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51 br i1 %phi.cmp , label %reduction.exit_true, label %reduction.exit_false
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52
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53 reduction.exit_true:
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252
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54 %A_idx = getelementptr inbounds double, ptr %A, i32 %j
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55 store double %phi, ptr %A_idx
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150
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56 br label %outer.inc
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57
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58 reduction.exit_false:
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59 br label %outer.inc
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60
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61
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62 outer.inc:
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63 %j.inc = add nuw nsw i32 %j, 1
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64 br label %outer.for
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65
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66 outer.exit:
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67 br label %return
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68
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69 return:
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70 ret void
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71 }
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72
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73
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74 ; CHECK: Skipped possible mapping target because it is not an unconditional overwrite
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