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annotate test/Transforms/SampleProfile/remarks.ll @ 146:3fc4d5c3e21e

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set tail call flag for code segment in CGCAll
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 23 Dec 2018 19:23:36 +0900
parents 803732b1fca8
children c2174574ed3a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
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2 ; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml
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3 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
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4 ; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml
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5
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6 ; Original test case.
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7 ;
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8 ; 1 #include <stdlib.h>
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9 ; 2
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10 ; 3 long long foo() {
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11 ; 4 long long int sum = 0;
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12 ; 5 for (int i = 0; i < 500000000; i++)
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13 ; 6 if (i < 1000)
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14 ; 7 sum -= i;
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15 ; 8 else
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16 ; 9 sum += -i * rand();
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17 ; 10 return sum;
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18 ; 11 }
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19 ; 12
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20 ; 13 int main() { return foo() > 0; }
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21
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22 ; We are expecting foo() to be inlined in main() (almost all the cycles are
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23 ; spent inside foo).
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24 ; CHECK: remark: remarks.cc:13:21: inlined hot callee '_Z3foov' into 'main'
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26 ; The back edge for the loop is the hottest edge in the loop subgraph.
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27 ; CHECK: remark: remarks.cc:6:9: most popular destination for conditional branches at remarks.cc:5:3
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28
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29 ; The predicate almost always chooses the 'else' branch.
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30 ; CHECK: remark: remarks.cc:9:15: most popular destination for conditional branches at remarks.cc:6:9
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32 ; Checking to see if YAML file is generated and contains remarks
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33 ;YAML: --- !Passed
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34 ;YAML-NEXT: Pass: sample-profile
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35 ;YAML-NEXT: Name: HotInline
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36 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 21 }
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37 ;YAML-NEXT: Function: main
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38 ;YAML-NEXT: Args:
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39 ;YAML-NEXT: - String: 'inlined hot callee '''
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40 ;YAML-NEXT: - Callee: _Z3foov
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41 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 3, Column: 0 }
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42 ;YAML-NEXT: - String: ''' into '''
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43 ;YAML-NEXT: - Caller: main
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44 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 0 }
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45 ;YAML-NEXT: - String: ''''
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46 ;YAML-NEXT: ...
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47 ;YAML: --- !Analysis
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48 ;YAML-NEXT: Pass: sample-profile
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49 ;YAML-NEXT: Name: AppliedSamples
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50 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 8 }
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51 ;YAML-NEXT: Function: main
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52 ;YAML-NEXT: Args:
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53 ;YAML-NEXT: - String: 'Applied '
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54 ;YAML-NEXT: - NumSamples: '18305'
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55 ;YAML-NEXT: - String: ' samples from profile (offset: '
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56 ;YAML-NEXT: - LineOffset: '2'
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57 ;YAML-NEXT: - String: ')'
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58 ;YAML-NEXT: ...
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59 ;YAML: --- !Passed
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60 ;YAML-NEXT: Pass: sample-profile
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61 ;YAML-NEXT: Name: PopularDest
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62 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 6, Column: 9 }
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63 ;YAML-NEXT: Function: main
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64 ;YAML-NEXT: Args:
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65 ;YAML-NEXT: - String: 'most popular destination for conditional branches at '
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66 ;YAML-NEXT: - CondBranchesLoc: 'remarks.cc:5:3'
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67 ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 3 }
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68 ;YAML-NEXT: ...
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70 ; Function Attrs: nounwind uwtable
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71 define i64 @_Z3foov() #0 !dbg !4 {
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72 entry:
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73 %sum = alloca i64, align 8
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74 %i = alloca i32, align 4
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75 %0 = bitcast i64* %sum to i8*, !dbg !19
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76 call void @llvm.lifetime.start.p0i8(i64 8, i8* %0) #4, !dbg !19
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77 call void @llvm.dbg.declare(metadata i64* %sum, metadata !9, metadata !20), !dbg !21
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78 store i64 0, i64* %sum, align 8, !dbg !21, !tbaa !22
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79 %1 = bitcast i32* %i to i8*, !dbg !26
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80 call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #4, !dbg !26
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81 call void @llvm.dbg.declare(metadata i32* %i, metadata !10, metadata !20), !dbg !27
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82 store i32 0, i32* %i, align 4, !dbg !27, !tbaa !28
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83 br label %for.cond, !dbg !26
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84
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85 for.cond: ; preds = %for.inc, %entry
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86 %2 = load i32, i32* %i, align 4, !dbg !30, !tbaa !28
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87 %cmp = icmp slt i32 %2, 500000000, !dbg !34
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88 br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !35
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89
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90 for.cond.cleanup: ; preds = %for.cond
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91 %3 = bitcast i32* %i to i8*, !dbg !36
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92 call void @llvm.lifetime.end.p0i8(i64 4, i8* %3) #4, !dbg !36
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93 br label %for.end
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94
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95 for.body: ; preds = %for.cond
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96 %4 = load i32, i32* %i, align 4, !dbg !38, !tbaa !28
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97 %cmp1 = icmp slt i32 %4, 1000, !dbg !40
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98 br i1 %cmp1, label %if.then, label %if.else, !dbg !41
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99
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100 if.then: ; preds = %for.body
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101 %5 = load i32, i32* %i, align 4, !dbg !42, !tbaa !28
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102 %conv = sext i32 %5 to i64, !dbg !42
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103 %6 = load i64, i64* %sum, align 8, !dbg !43, !tbaa !22
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104 %sub = sub nsw i64 %6, %conv, !dbg !43
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105 store i64 %sub, i64* %sum, align 8, !dbg !43, !tbaa !22
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106 br label %if.end, !dbg !44
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107
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108 if.else: ; preds = %for.body
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109 %7 = load i32, i32* %i, align 4, !dbg !45, !tbaa !28
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110 %sub2 = sub nsw i32 0, %7, !dbg !46
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111 %call = call i32 @rand() #4, !dbg !47
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112 %mul = mul nsw i32 %sub2, %call, !dbg !48
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113 %conv3 = sext i32 %mul to i64, !dbg !46
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114 %8 = load i64, i64* %sum, align 8, !dbg !49, !tbaa !22
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115 %add = add nsw i64 %8, %conv3, !dbg !49
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116 store i64 %add, i64* %sum, align 8, !dbg !49, !tbaa !22
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117 br label %if.end
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118
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119 if.end: ; preds = %if.else, %if.then
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120 br label %for.inc, !dbg !50
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121
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122 for.inc: ; preds = %if.end
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123 %9 = load i32, i32* %i, align 4, !dbg !51, !tbaa !28
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124 %inc = add nsw i32 %9, 1, !dbg !51
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125 store i32 %inc, i32* %i, align 4, !dbg !51, !tbaa !28
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126 br label %for.cond, !dbg !52
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127
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128 for.end: ; preds = %for.cond.cleanup
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129 %10 = load i64, i64* %sum, align 8, !dbg !53, !tbaa !22
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130 %11 = bitcast i64* %sum to i8*, !dbg !54
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131 call void @llvm.lifetime.end.p0i8(i64 8, i8* %11) #4, !dbg !54
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132 ret i64 %10, !dbg !55
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133 }
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134
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135 ; Function Attrs: nounwind argmemonly
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136 declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
100
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137
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138 ; Function Attrs: nounwind readnone
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139 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
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140
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141 ; Function Attrs: nounwind
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142 declare i32 @rand() #3
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143
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144 ; Function Attrs: nounwind argmemonly
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145 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
100
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146
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147 ; Function Attrs: nounwind uwtable
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148 define i32 @main() #0 !dbg !13 {
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149 entry:
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150 %retval = alloca i32, align 4
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151 store i32 0, i32* %retval, align 4
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152 %call = call i64 @_Z3foov(), !dbg !56
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153 %cmp = icmp sgt i64 %call, 0, !dbg !57
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154 %conv = zext i1 %cmp to i32, !dbg !56
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155 ret i32 %conv, !dbg !58
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156 }
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157
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158 attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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159 attributes #1 = { nounwind argmemonly }
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160 attributes #2 = { nounwind readnone }
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161 attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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162 attributes #4 = { nounwind }
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163
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164 !llvm.dbg.cu = !{!0}
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165 !llvm.module.flags = !{!16, !17}
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166 !llvm.ident = !{!18}
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167
120
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168 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
100
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169 !1 = !DIFile(filename: "remarks.cc", directory: ".")
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170 !2 = !{}
120
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171 !4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
100
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172 !5 = !DISubroutineType(types: !6)
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173 !6 = !{!7}
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174 !7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
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175 !8 = !{!9, !10}
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176 !9 = !DILocalVariable(name: "sum", scope: !4, file: !1, line: 4, type: !7)
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177 !10 = !DILocalVariable(name: "i", scope: !11, file: !1, line: 5, type: !12)
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178 !11 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 3)
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179 !12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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180 !13 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 13, type: !14, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
100
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181 !14 = !DISubroutineType(types: !15)
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182 !15 = !{!12}
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183 !16 = !{i32 2, !"Dwarf Version", i32 4}
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184 !17 = !{i32 2, !"Debug Info Version", i32 3}
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185 !18 = !{!"clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)"}
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186 !19 = !DILocation(line: 4, column: 3, scope: !4)
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187 !20 = !DIExpression()
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188 !21 = !DILocation(line: 4, column: 17, scope: !4)
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189 !22 = !{!23, !23, i64 0}
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190 !23 = !{!"long long", !24, i64 0}
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191 !24 = !{!"omnipotent char", !25, i64 0}
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192 !25 = !{!"Simple C/C++ TBAA"}
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193 !26 = !DILocation(line: 5, column: 8, scope: !11)
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194 !27 = !DILocation(line: 5, column: 12, scope: !11)
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195 !28 = !{!29, !29, i64 0}
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196 !29 = !{!"int", !24, i64 0}
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197 !30 = !DILocation(line: 5, column: 19, scope: !31)
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198 !31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3)
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199 !32 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 1)
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200 !33 = distinct !DILexicalBlock(scope: !11, file: !1, line: 5, column: 3)
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diff changeset
201 !34 = !DILocation(line: 5, column: 21, scope: !33)
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diff changeset
202 !35 = !DILocation(line: 5, column: 3, scope: !11)
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diff changeset
203 !36 = !DILocation(line: 5, column: 3, scope: !37)
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diff changeset
204 !37 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 2)
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diff changeset
205 !38 = !DILocation(line: 6, column: 9, scope: !39)
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diff changeset
206 !39 = distinct !DILexicalBlock(scope: !33, file: !1, line: 6, column: 9)
7d135dc70f03 LLVM 3.9
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diff changeset
207 !40 = !DILocation(line: 6, column: 11, scope: !39)
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diff changeset
208 !41 = !DILocation(line: 6, column: 9, scope: !33)
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diff changeset
209 !42 = !DILocation(line: 7, column: 14, scope: !39)
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diff changeset
210 !43 = !DILocation(line: 7, column: 11, scope: !39)
7d135dc70f03 LLVM 3.9
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diff changeset
211 !44 = !DILocation(line: 7, column: 7, scope: !39)
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diff changeset
212 !45 = !DILocation(line: 9, column: 15, scope: !39)
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diff changeset
213 !46 = !DILocation(line: 9, column: 14, scope: !39)
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diff changeset
214 !47 = !DILocation(line: 9, column: 19, scope: !39)
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diff changeset
215 !48 = !DILocation(line: 9, column: 17, scope: !39)
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diff changeset
216 !49 = !DILocation(line: 9, column: 11, scope: !39)
7d135dc70f03 LLVM 3.9
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diff changeset
217 !50 = !DILocation(line: 6, column: 13, scope: !39)
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diff changeset
218 !51 = !DILocation(line: 5, column: 35, scope: !33)
7d135dc70f03 LLVM 3.9
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diff changeset
219 !52 = !DILocation(line: 5, column: 3, scope: !33)
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diff changeset
220 !53 = !DILocation(line: 10, column: 10, scope: !4)
7d135dc70f03 LLVM 3.9
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diff changeset
221 !54 = !DILocation(line: 11, column: 1, scope: !4)
7d135dc70f03 LLVM 3.9
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diff changeset
222 !55 = !DILocation(line: 10, column: 3, scope: !4)
7d135dc70f03 LLVM 3.9
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diff changeset
223 !56 = !DILocation(line: 13, column: 21, scope: !13)
7d135dc70f03 LLVM 3.9
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parents:
diff changeset
224 !57 = !DILocation(line: 13, column: 27, scope: !13)
7d135dc70f03 LLVM 3.9
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diff changeset
225 !58 = !DILocation(line: 13, column: 14, scope: !13)