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annotate llvm/test/Transforms/IndVarSimplify/pr28705.ll @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children c4bab56944e8
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150
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1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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2 ; PR28705
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3 ; RUN: opt < %s -indvars -S | FileCheck %s
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4
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5 ; Check IndVarSimplify doesn't replace external use of the induction var
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6 ; "%inc.i.i" with "%.sroa.speculated + 1" because it is not profitable.
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7 ;
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8 ;
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9 define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr {
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10 ; CHECK-LABEL: @foo(
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11 ; CHECK-NEXT: entry:
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12 ; CHECK-NEXT: [[CMP_I1137:%.*]] = icmp ugt i32 [[SUB_PTR_DIV_I:%.*]], 3
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13 ; CHECK-NEXT: [[DOTSROA_SPECULATED:%.*]] = select i1 [[CMP_I1137]], i32 3, i32 [[SUB_PTR_DIV_I]]
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14 ; CHECK-NEXT: [[CMP6483126:%.*]] = icmp eq i32 [[DOTSROA_SPECULATED]], 0
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15 ; CHECK-NEXT: br i1 [[CMP6483126]], label [[XZ_EXIT:%.*]], label [[FOR_BODY650_LR_PH:%.*]]
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16 ; CHECK: for.body650.lr.ph:
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17 ; CHECK-NEXT: br label [[FOR_BODY650:%.*]]
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18 ; CHECK: loopexit:
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19 ; CHECK-NEXT: [[INC_I_I_LCSSA:%.*]] = phi i32 [ [[INC_I_I:%.*]], [[FOR_BODY650]] ]
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20 ; CHECK-NEXT: br label [[XZ_EXIT]]
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21 ; CHECK: XZ.exit:
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22 ; CHECK-NEXT: [[DB_SROA_9_0_LCSSA:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[INC_I_I_LCSSA]], [[LOOPEXIT:%.*]] ]
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23 ; CHECK-NEXT: br label [[END:%.*]]
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24 ; CHECK: for.body650:
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25 ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[FOR_BODY650_LR_PH]] ], [ [[INC655:%.*]], [[FOR_BODY650]] ]
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26 ; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 1, [[FOR_BODY650_LR_PH]] ], [ [[INC_I_I]], [[FOR_BODY650]] ]
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27 ; CHECK-NEXT: [[ARRAYIDX_I_I1105:%.*]] = getelementptr inbounds i8, i8* [[REF_I1174:%.*]], i32 [[IV2]]
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28 ; CHECK-NEXT: store i8 7, i8* [[ARRAYIDX_I_I1105]], align 1
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29 ; CHECK-NEXT: [[INC_I_I]] = add nuw nsw i32 [[IV2]], 1
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30 ; CHECK-NEXT: [[INC655]] = add nuw nsw i32 [[IV]], 1
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31 ; CHECK-NEXT: [[CMP648:%.*]] = icmp eq i32 [[INC655]], [[DOTSROA_SPECULATED]]
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32 ; CHECK-NEXT: br i1 [[CMP648]], label [[LOOPEXIT]], label [[FOR_BODY650]]
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33 ; CHECK: end:
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34 ; CHECK-NEXT: ret void
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35 ;
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36 entry:
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37 %cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3
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38 %.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i
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39 %cmp6483126 = icmp eq i32 %.sroa.speculated, 0
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40 br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph
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41
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42 for.body650.lr.ph:
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43 br label %for.body650
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44
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45 loopexit:
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46 %inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ]
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47 br label %XZ.exit
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48
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49 XZ.exit:
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50 %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ]
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51 br label %end
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52
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53 for.body650:
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54 %iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ]
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55 %iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ]
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56 %arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2
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57 store i8 7, i8* %arrayidx.i.i1105, align 1
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58 %inc.i.i = add i32 %iv2, 1
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59 %inc655 = add i32 %iv, 1
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60 %cmp648 = icmp eq i32 %inc655, %.sroa.speculated
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61 br i1 %cmp648, label %loopexit, label %for.body650
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62
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63 end:
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64 ret void
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65 }