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annotate test/Transforms/AddDiscriminators/first-only.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: opt < %s -add-discriminators -S | FileCheck %s
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2
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3 ; Test that the only instructions that receive a new discriminator in
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4 ; the block 'if.then' are those that share the same line number as
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5 ; the branch in 'entry'.
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6 ;
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7 ; Original code:
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8 ;
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9 ; void foo(int i) {
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10 ; int x, y;
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11 ; if (i < 10) { x = i;
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12 ; y = -i;
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13 ; }
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14 ; }
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16 define void @foo(i32 %i) #0 !dbg !4 {
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17 entry:
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18 %i.addr = alloca i32, align 4
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19 %x = alloca i32, align 4
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20 %y = alloca i32, align 4
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21 store i32 %i, i32* %i.addr, align 4
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22 %0 = load i32, i32* %i.addr, align 4, !dbg !10
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23 %cmp = icmp slt i32 %0, 10, !dbg !10
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24 br i1 %cmp, label %if.then, label %if.end, !dbg !10
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25
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26 if.then: ; preds = %entry
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27 %1 = load i32, i32* %i.addr, align 4, !dbg !12
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28 store i32 %1, i32* %x, align 4, !dbg !12
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29
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30 %2 = load i32, i32* %i.addr, align 4, !dbg !14
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31 ; CHECK: %2 = load i32, i32* %i.addr, align 4, !dbg ![[THEN:[0-9]+]]
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32
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33 %sub = sub nsw i32 0, %2, !dbg !14
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34 ; CHECK: %sub = sub nsw i32 0, %2, !dbg ![[THEN]]
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35
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36 store i32 %sub, i32* %y, align 4, !dbg !14
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37 ; CHECK: store i32 %sub, i32* %y, align 4, !dbg ![[THEN]]
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38
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39 br label %if.end, !dbg !15
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40 ; CHECK: br label %if.end, !dbg ![[BR:[0-9]+]]
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41
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42 if.end: ; preds = %if.then, %entry
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43 ret void, !dbg !16
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44 ; CHECK: ret void, !dbg ![[END:[0-9]+]]
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45 }
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47 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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49 ; We should be able to add discriminators even in the absence of llvm.dbg.cu.
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50 ; When using sample profiles, the front end will generate line tables but it
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51 ; does not generate llvm.dbg.cu to prevent codegen from emitting debug info
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52 ; to the final binary.
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53 ; !llvm.dbg.cu = !{!0}
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54 !llvm.module.flags = !{!7, !8}
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55 !llvm.ident = !{!9}
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57 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 (trunk 199750) (llvm/trunk 199751)", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
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58 !1 = !DIFile(filename: "first-only.c", directory: ".")
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59 !2 = !{}
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60 !3 = !{!4}
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61 !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
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62 !5 = !DIFile(filename: "first-only.c", directory: ".")
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63 !6 = !DISubroutineType(types: !{null})
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64 !7 = !{i32 2, !"Dwarf Version", i32 4}
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65 !8 = !{i32 1, !"Debug Info Version", i32 3}
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66 !9 = !{!"clang version 3.5 (trunk 199750) (llvm/trunk 199751)"}
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67 !10 = !DILocation(line: 3, scope: !11)
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69 !11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4)
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70 ; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo"
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71 ; CHECK: ![[BLOCK1:[0-9]+]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 3)
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73 !12 = !DILocation(line: 3, scope: !13)
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75 !13 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !11)
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76 ; CHECK: !DILexicalBlockFile(scope: ![[BLOCK2:[0-9]+]],{{.*}} discriminator: 1)
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78 !14 = !DILocation(line: 4, scope: !13)
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79 ; CHECK: ![[BLOCK2]] = distinct !DILexicalBlock(scope: ![[BLOCK1]],{{.*}} line: 3)
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81 !15 = !DILocation(line: 5, scope: !13)
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82 ; CHECK: ![[THEN]] = !DILocation(line: 4, scope: ![[BLOCK2]])
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84 !16 = !DILocation(line: 6, scope: !4)
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85 ; CHECK: ![[BR]] = !DILocation(line: 5, scope: ![[BLOCK2]])
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86 ; CHECK: ![[END]] = !DILocation(line: 6, scope: ![[FOO]])
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87