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annotate llvm/test/Transforms/ADCE/2003-01-22-PredecessorProblem.ll @ 201:a96fbbdf2d0f

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 04 Jun 2021 21:07:06 +0900
parents 1d019706d866
children c4bab56944e8
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1 ; Testcase reduced from 197.parser by bugpoint
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2 ; RUN: opt < %s -adce
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3 ; RUN: opt < %s -adce -adce-remove-loops -S | FileCheck %s
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4
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5 define void @conjunction_prune() {
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6 ; <label>:0
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7 br label %bb19
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8
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9 bb19: ; preds = %bb23, %bb22, %0
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10 %reg205 = phi i8* [ null, %bb22 ], [ null, %bb23 ], [ null, %0 ] ; <i8*> [#uses=1]
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11 ; CHECK: br label %bb22
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12 br i1 false, label %bb21, label %bb22
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13
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14 bb21: ; preds = %bb19
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15 %cast455 = bitcast i8* %reg205 to i8** ; <i8**> [#uses=0]
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16 ; CHECK: br label %bb22
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17 br label %bb22
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18
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19 bb22: ; preds = %bb21, %bb19
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20 ; CHECK: br label %bb23
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21 br i1 false, label %bb19, label %bb23
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22
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23 bb23: ; preds = %bb22
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24 ; CHECK: br label %bb28
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25 br i1 false, label %bb19, label %bb28
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26
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27 bb28: ; preds = %bb23
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28 ret void
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29 }
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30