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annotate test/CodeGen/X86/sink-cheap-instructions.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 1172e4bd9c6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefix=CHECK
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2 ; RUN: llc < %s -mtriple=x86_64-linux -sink-insts-to-avoid-spills | FileCheck %s -check-prefix=SINK
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3
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4 ; Ensure that we sink copy-like instructions into loops to avoid register
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5 ; spills.
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6
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7 ; CHECK: Spill
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8 ; SINK-NOT: Spill
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9
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10 %struct.A = type { i32, i32, i32, i32, i32, i32 }
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11
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12 define void @_Z1fPhP1A(i8* nocapture readonly %input, %struct.A* %a) {
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13 %1 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 0
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14 %2 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 1
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15 %3 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 2
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16 %4 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 3
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17 %5 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 4
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18 %6 = getelementptr inbounds %struct.A, %struct.A* %a, i64 0, i32 5
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19 br label %.backedge
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20
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21 .backedge:
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22 %.0 = phi i8* [ %input, %0 ], [ %7, %.backedge.backedge ]
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23 %7 = getelementptr inbounds i8, i8* %.0, i64 1
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24 %8 = load i8, i8* %7, align 1
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25 switch i8 %8, label %.backedge.backedge [
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26 i8 0, label %9
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27 i8 10, label %10
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28 i8 20, label %11
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29 i8 30, label %12
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30 i8 40, label %13
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31 i8 50, label %14
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32 ]
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33
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34 ; <label>:9
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35 tail call void @_Z6assignPj(i32* %1)
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36 br label %.backedge.backedge
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37
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38 ; <label>:10
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39 tail call void @_Z6assignPj(i32* %2)
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40 br label %.backedge.backedge
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41
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42 .backedge.backedge:
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43 br label %.backedge
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44
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45 ; <label>:11
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46 tail call void @_Z6assignPj(i32* %3)
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47 br label %.backedge.backedge
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48
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49 ; <label>:12
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50 tail call void @_Z6assignPj(i32* %4)
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51 br label %.backedge.backedge
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52
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53 ; <label>:13
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54 tail call void @_Z6assignPj(i32* %5)
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55 br label %.backedge.backedge
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56
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57 ; <label>:14
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58 tail call void @_Z6assignPj(i32* %6)
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59 br label %.backedge.backedge
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60 }
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61
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62 declare void @_Z6assignPj(i32*)