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annotate llvm/test/Transforms/IndVarSimplify/ult-sub-to-eq.ll @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 1f2b6ac9f198
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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 ; RUN: opt -S -indvars < %s | FileCheck %s
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3
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4 ; Provide legal integer types.
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5 target datalayout = "n8:16:32:64"
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6
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7
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8 define void @test1(float* nocapture %autoc, float* nocapture %data, float %d, i32 %data_len, i32 %sample) nounwind {
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9 ; CHECK-LABEL: @test1(
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10 ; CHECK-NEXT: entry:
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11 ; CHECK-NEXT: [[SUB:%.*]] = sub i32 [[DATA_LEN:%.*]], [[SAMPLE:%.*]]
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12 ; CHECK-NEXT: [[CMP4:%.*]] = icmp eq i32 [[DATA_LEN]], [[SAMPLE]]
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13 ; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]
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14 ; CHECK: for.body.preheader:
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15 ; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[SUB]] to i64
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16 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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17 ; CHECK: for.body:
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18 ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
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19 ; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[INDVARS_IV]] to i32
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20 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[TMP0]], [[SAMPLE]]
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21 ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[ADD]] to i64
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22 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[DATA:%.*]], i64 [[IDXPROM]]
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23 ; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[ARRAYIDX]], align 4
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24 ; CHECK-NEXT: [[MUL:%.*]] = fmul float [[TMP1]], [[D:%.*]]
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25 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[AUTOC:%.*]], i64 [[INDVARS_IV]]
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26 ; CHECK-NEXT: [[TMP2:%.*]] = load float, float* [[ARRAYIDX2]], align 4
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27 ; CHECK-NEXT: [[ADD3:%.*]] = fadd float [[TMP2]], [[MUL]]
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28 ; CHECK-NEXT: store float [[ADD3]], float* [[ARRAYIDX2]], align 4
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29 ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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30 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
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31 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]]
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32 ; CHECK: for.end.loopexit:
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33 ; CHECK-NEXT: br label [[FOR_END]]
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34 ; CHECK: for.end:
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35 ; CHECK-NEXT: ret void
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36 ;
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37 entry:
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38 %sub = sub i32 %data_len, %sample
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39 %cmp4 = icmp eq i32 %data_len, %sample
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40 br i1 %cmp4, label %for.end, label %for.body
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41
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42 for.body: ; preds = %entry, %for.body
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43 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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44 %0 = trunc i64 %indvars.iv to i32
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45 %add = add i32 %0, %sample
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46 %idxprom = zext i32 %add to i64
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47 %arrayidx = getelementptr inbounds float, float* %data, i64 %idxprom
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48 %1 = load float, float* %arrayidx, align 4
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49 %mul = fmul float %1, %d
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50 %arrayidx2 = getelementptr inbounds float, float* %autoc, i64 %indvars.iv
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51 %2 = load float, float* %arrayidx2, align 4
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52 %add3 = fadd float %2, %mul
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53 store float %add3, float* %arrayidx2, align 4
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54 %indvars.iv.next = add i64 %indvars.iv, 1
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55 %3 = trunc i64 %indvars.iv.next to i32
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56 %cmp = icmp ult i32 %3, %sub
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57 br i1 %cmp, label %for.body, label %for.end
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58
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59 for.end: ; preds = %for.body, %entry
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60 ret void
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61
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62
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63 ; check that we turn the IV test into an eq.
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64 }
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65