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annotate polly/test/ForwardOpTree/forward_phi_load.ll @ 173:0572611fdcc8 llvm10 llvm12

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reorgnization done
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 11:55:54 +0900
parents 1d019706d866
children c4bab56944e8
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1 ; RUN: opt %loadPolly -polly-optree-normalize-phi=true -polly-optree -analyze < %s | FileCheck %s -match-full-lines
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2 ;
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3 ; Rematerialize a load.
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4 ;
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5 ; for (int j = 0; j < n; j += 1) {
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6 ; bodyA:
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7 ; double val = B[j];
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8 ;
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9 ; bodyB:
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10 ; double phi = val;
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11 ;
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12 ; bodyC:
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13 ; A[j] = phi;
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14 ; }
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15 ;
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16 define void @func(i32 %n, double* noalias nonnull %A, double* noalias nonnull %B) {
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17 entry:
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18 br label %for
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19
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20 for:
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21 %j = phi i32 [0, %entry], [%j.inc, %inc]
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22 %j.cmp = icmp slt i32 %j, %n
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23 br i1 %j.cmp, label %bodyA, label %exit
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24
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25 bodyA:
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26 %B_idx = getelementptr inbounds double, double* %B, i32 %j
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27 %val = load double, double* %B_idx
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28 br label %bodyB
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29
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30 bodyB:
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31 %phi = phi double [%val, %bodyA]
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32 br label %bodyC
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33
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34 bodyC:
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35 %A_idx = getelementptr inbounds double, double* %A, i32 %j
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36 store double %phi, double* %A_idx
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37 br label %inc
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38
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39 inc:
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40 %j.inc = add nuw nsw i32 %j, 1
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41 br label %for
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42
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43 exit:
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44 br label %return
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45
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46 return:
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47 ret void
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48 }
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49
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50
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51 ; CHECK: Statistics {
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52 ; CHECK: Reloads: 2
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53 ; CHECK: }
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54
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55 ; CHECK-NEXT: After statements {
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56 ; CHECK-NEXT: Stmt_bodyA
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57 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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58 ; CHECK-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_B[i0] };
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59 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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60 ; CHECK-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_phi__phi[] };
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61 ; CHECK-NEXT: Instructions {
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62 ; CHECK-NEXT: %val = load double, double* %B_idx, align 8
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63 ; CHECK-NEXT: }
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64 ; CHECK-NEXT: Stmt_bodyB
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65 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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66 ; CHECK-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_phi__phi[] };
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67 ; CHECK-NEXT: new: [n] -> { Stmt_bodyB[i0] -> MemRef_B[i0] };
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68 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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69 ; CHECK-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_phi[] };
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70 ; CHECK-NEXT: Instructions {
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71 ; CHECK-NEXT: %phi = phi double [ %val, %bodyA ]
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72 ; CHECK-NEXT: }
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73 ; CHECK-NEXT: Stmt_bodyC
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74 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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75 ; CHECK-NEXT: [n] -> { Stmt_bodyC[i0] -> MemRef_A[i0] };
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76 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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77 ; CHECK-NEXT: [n] -> { Stmt_bodyC[i0] -> MemRef_phi[] };
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78 ; CHECK-NEXT: new: [n] -> { Stmt_bodyC[i0] -> MemRef_B[i0] };
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79 ; CHECK-NEXT: Instructions {
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80 ; CHECK-NEXT: store double %phi, double* %A_idx, align 8
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81 ; CHECK-NEXT: }
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82 ; CHECK-NEXT: }