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annotate test/CodeGen/X86/dwarf-eh-prepare.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children
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95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; RUN: opt -mtriple=x86_64-linux-gnu -dwarfehprepare < %s -S | FileCheck %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 ; Check basic functionality of IR-to-IR DWARF EH preparation. This should
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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4 ; eliminate resumes. This pass requires a TargetMachine, so we put it under X86
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; and provide an x86 triple.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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7 @int_typeinfo = global i8 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 declare void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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10 declare void @cleanup()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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11
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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12 define i32 @simple_cleanup_catch() personality i32 (...)* @__gxx_personality_v0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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13 invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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14 to label %cont unwind label %lpad
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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15
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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16 ; CHECK-LABEL: define i32 @simple_cleanup_catch()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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17 ; CHECK: invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 cont:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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20 ret i32 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 ; CHECK: ret i32 0
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23
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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24 lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25 %ehvals = landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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26 cleanup
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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27 catch i8* @int_typeinfo
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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28 %ehptr = extractvalue { i8*, i32 } %ehvals, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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29 %ehsel = extractvalue { i8*, i32 } %ehvals, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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30 call void @cleanup()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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31 %int_sel = call i32 @llvm.eh.typeid.for(i8* @int_typeinfo)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32 %int_match = icmp eq i32 %ehsel, %int_sel
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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33 br i1 %int_match, label %catch_int, label %eh.resume
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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35 ; CHECK: lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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36 ; CHECK: landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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37 ; CHECK: call void @cleanup()
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parents:
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38 ; CHECK: call i32 @llvm.eh.typeid.for
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 ; CHECK: br i1
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40
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41 catch_int:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ret i32 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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43
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 ; CHECK: catch_int:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 ; CHECK: ret i32 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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47 eh.resume:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48 %tmp_ehvals = insertvalue { i8*, i32 } undef, i8* %ehptr, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 %new_ehvals = insertvalue { i8*, i32 } %tmp_ehvals, i32 %ehsel, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 resume { i8*, i32 } %new_ehvals
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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51
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 ; CHECK: eh.resume:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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53 ; CHECK-NEXT: call void @_Unwind_Resume(i8* %ehptr)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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54 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 define i32 @catch_no_resume() personality i32 (...)* @__gxx_personality_v0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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58 invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 to label %cont unwind label %lpad
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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61 cont:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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62 ret i32 0
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parents:
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63
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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64 lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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65 %ehvals = landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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66 catch i8* @int_typeinfo
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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67 %ehptr = extractvalue { i8*, i32 } %ehvals, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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68 %ehsel = extractvalue { i8*, i32 } %ehvals, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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69 %int_sel = call i32 @llvm.eh.typeid.for(i8* @int_typeinfo)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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70 %int_match = icmp eq i32 %ehsel, %int_sel
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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71 br i1 %int_match, label %catch_int, label %eh.resume
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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72
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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73 catch_int:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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74 ret i32 1
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parents:
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75
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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76 eh.resume:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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77 %tmp_ehvals = insertvalue { i8*, i32 } undef, i8* %ehptr, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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78 %new_ehvals = insertvalue { i8*, i32 } %tmp_ehvals, i32 %ehsel, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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79 resume { i8*, i32 } %new_ehvals
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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80 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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81
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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82 ; Check that we can prune the unreachable resume instruction.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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83
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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84 ; CHECK-LABEL: define i32 @catch_no_resume() personality i32 (...)* @__gxx_personality_v0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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85 ; CHECK: invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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86 ; CHECK: ret i32 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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87 ; CHECK: lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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88 ; CHECK: landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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89 ; CHECK-NOT: br i1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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90 ; CHECK: ret i32 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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91 ; CHECK-NOT: call void @_Unwind_Resume
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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92 ; CHECK: {{^[}]}}
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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93
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parents:
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94
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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95 define i32 @catch_cleanup_merge() personality i32 (...)* @__gxx_personality_v0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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96 invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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97 to label %inner_invoke unwind label %outer_lpad
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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98 inner_invoke:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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99 invoke void @might_throw()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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100 to label %cont unwind label %inner_lpad
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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101 cont:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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102 ret i32 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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103
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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104 outer_lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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105 %ehvals1 = landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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106 catch i8* @int_typeinfo
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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107 br label %catch.dispatch
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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108
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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109 inner_lpad:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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110 %ehvals2 = landingpad { i8*, i32 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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111 cleanup
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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112 catch i8* @int_typeinfo
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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113 call void @cleanup()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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114 br label %catch.dispatch
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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115
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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116 catch.dispatch:
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parents:
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117 %ehvals = phi { i8*, i32 } [ %ehvals1, %outer_lpad ], [ %ehvals2, %inner_lpad ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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118 %ehptr = extractvalue { i8*, i32 } %ehvals, 0
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parents:
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119 %ehsel = extractvalue { i8*, i32 } %ehvals, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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120 %int_sel = call i32 @llvm.eh.typeid.for(i8* @int_typeinfo)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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121 %int_match = icmp eq i32 %ehsel, %int_sel
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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122 br i1 %int_match, label %catch_int, label %eh.resume
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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123
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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124 catch_int:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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125 ret i32 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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126
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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127 eh.resume:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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128 %tmp_ehvals = insertvalue { i8*, i32 } undef, i8* %ehptr, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
129 %new_ehvals = insertvalue { i8*, i32 } %tmp_ehvals, i32 %ehsel, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 resume { i8*, i32 } %new_ehvals
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131 }
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132
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133 ; We can't prune this merge because one landingpad is a cleanup pad.
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134
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135 ; CHECK-LABEL: define i32 @catch_cleanup_merge()
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136 ; CHECK: invoke void @might_throw()
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137 ; CHECK: invoke void @might_throw()
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138 ; CHECK: ret i32 0
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139 ;
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140 ; CHECK: outer_lpad:
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141 ; CHECK: landingpad { i8*, i32 }
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142 ; CHECK: br label %catch.dispatch
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143 ;
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144 ; CHECK: inner_lpad:
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145 ; CHECK: landingpad { i8*, i32 }
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146 ; CHECK: call void @cleanup()
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147 ; CHECK: br label %catch.dispatch
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148 ;
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149 ; CHECK: catch.dispatch:
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150 ; CHECK: call i32 @llvm.eh.typeid.for
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151 ; CHECK: br i1
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152 ; CHECK: catch_int:
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153 ; CHECK: ret i32 1
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154 ; CHECK: eh.resume:
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155 ; CHECK-NEXT: call void @_Unwind_Resume(i8* %ehptr)
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156
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157 declare i32 @__gxx_personality_v0(...)
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158 declare i32 @llvm.eh.typeid.for(i8*)