1 ; RUN: llc -march=x86-64 -mtriple=x86_64-linux < %s | FileCheck %s 2 ; RUN: opt -strip-debug < %s | llc -march=x86-64 -mtriple=x86_64-linux | FileCheck %s 3 ; http://llvm.org/PR19051. Minor code-motion difference with -g. 4 ; Presence of debug info shouldn't affect the codegen. Make sure that 5 ; we generated the same code sequence with and without debug info. 6 ; 7 ; CHECK: callq _Z3fooPcjPKc 8 ; CHECK: callq _Z3fooPcjPKc 9 ; CHECK: leaq (%rsp), %rdi 10 ; CHECK: movl $4, %esi 11 ; CHECK: testl {{%[a-z]+}}, {{%[a-z]+}} 12 ; CHECK: je .LBB0_4 13 14 ; Regenerate test with this command: 15 ; clang++ -emit-llvm -S -O2 -g 16 ; from this source: 17 ; 18 ; extern void foo(char *dst,unsigned siz,const char *src); 19 ; extern const char * i2str(int); 20 ; 21 ; struct AAA3 { 22 ; AAA3(const char *value) { foo(text,sizeof(text),value);} 23 ; void operator=(const char *value) { foo(text,sizeof(text),value);} 24 ; operator const char*() const { return text;} 25 ; char text[4]; 26 ; }; 27 ; 28 ; void bar (int param1,int param2) { 29 ; const char * temp(0); 30 ; 31 ; if (param2) { 32 ; temp = i2str(param2); 33 ; } 34 ; AAA3 var1(""); 35 ; AAA3 var2(""); 36 ; 37 ; if (param1) 38 ; var2 = "+"; 39 ; else 40 ; var2 = "-"; 41 ; var1 = ""; 42 ; } 43 44 %struct.AAA3 = type { [4 x i8] } 45 46 @.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1 47 @.str.1 = private unnamed_addr constant [2 x i8] c"+\00", align 1 48 @.str.2 = private unnamed_addr constant [2 x i8] c"-\00", align 1 49 50 ; Function Attrs: uwtable 51 define void @_Z3barii(i32 %param1, i32 %param2) #0 !dbg !24 { 52 entry: 53 %var1 = alloca %struct.AAA3, align 1 54 %var2 = alloca %struct.AAA3, align 1 55 tail call void @llvm.dbg.value(metadata i32 %param1, i64 0, metadata !29, metadata !46), !dbg !47 56 tail call void @llvm.dbg.value(metadata i32 %param2, i64 0, metadata !30, metadata !46), !dbg !48 57 tail call void @llvm.dbg.value(metadata i8* null, i64 0, metadata !31, metadata !46), !dbg !49 58 %tobool = icmp eq i32 %param2, 0, !dbg !50 59 br i1 %tobool, label %if.end, label %if.then, !dbg !52 60 61 if.then: ; preds = %entry 62 %call = tail call i8* @_Z5i2stri(i32 %param2), !dbg !53 63 tail call void @llvm.dbg.value(metadata i8* %call, i64 0, metadata !31, metadata !46), !dbg !49 64 br label %if.end, !dbg !55 65 66 if.end: ; preds = %entry, %if.then 67 %0 = getelementptr inbounds %struct.AAA3, %struct.AAA3* %var1, i64 0, i32 0, i64 0, !dbg !56 68 call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !56 69 tail call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !32, metadata !57), !dbg !58 70 tail call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !36, metadata !46), !dbg !59 71 tail call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !38, metadata !46), !dbg !62 72 call void @_Z3fooPcjPKc(i8* %0, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !63 73 %1 = getelementptr inbounds %struct.AAA3, %struct.AAA3* %var2, i64 0, i32 0, i64 0, !dbg !65 74 call void @llvm.lifetime.start(i64 4, i8* %1) #4, !dbg !65 75 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !33, metadata !57), !dbg !66 76 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !36, metadata !46), !dbg !67 77 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !38, metadata !46), !dbg !69 78 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !70 79 %tobool1 = icmp eq i32 %param1, 0, !dbg !71 80 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !33, metadata !57), !dbg !66 81 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !41, metadata !46), !dbg !73 82 br i1 %tobool1, label %if.else, label %if.then2, !dbg !75 83 84 if.then2: ; preds = %if.end 85 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !76 86 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0)), !dbg !78 87 br label %if.end3, !dbg !79 88 89 if.else: ; preds = %if.end 90 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !80 91 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0)), !dbg !81 92 br label %if.end3 93 94 if.end3: ; preds = %if.else, %if.then2 95 call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !32, metadata !57), !dbg !58 96 call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !41, metadata !46), !dbg !82 97 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !84 98 call void @_Z3fooPcjPKc(i8* %0, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !85 99 call void @llvm.lifetime.end(i64 4, i8* %1) #4, !dbg !86 100 call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !87 101 ret void, !dbg !86 102 } 103 104 ; Function Attrs: argmemonly nounwind 105 declare void @llvm.lifetime.start(i64, i8* nocapture) #1 106 107 declare i8* @_Z5i2stri(i32) #2 108 109 ; Function Attrs: argmemonly nounwind 110 declare void @llvm.lifetime.end(i64, i8* nocapture) #1 111 112 declare void @_Z3fooPcjPKc(i8*, i32, i8*) #2 113 114 ; Function Attrs: nounwind readnone 115 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3 116 117 attributes #0 = { 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" } 118 attributes #1 = { argmemonly nounwind } 119 attributes #2 = { "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" } 120 attributes #3 = { nounwind readnone } 121 attributes #4 = { nounwind } 122 123 !llvm.dbg.cu = !{!0} 124 !llvm.module.flags = !{!43, !44} 125 !llvm.ident = !{!45} 126 127 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) 128 !1 = !DIFile(filename: "test.cpp", directory: "/mnt/extra") 129 !2 = !{} 130 !3 = !{!4} 131 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "AAA3", file: !1, line: 4, size: 32, align: 8, elements: !5, identifier: "_ZTS4AAA3") 132 !5 = !{!6, !11, !17, !18} 133 !6 = !DIDerivedType(tag: DW_TAG_member, name: "text", scope: !4, file: !1, line: 8, baseType: !7, size: 32, align: 8) 134 !7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 32, align: 8, elements: !9) 135 !8 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 136 !9 = !{!10} 137 !10 = !DISubrange(count: 4) 138 !11 = !DISubprogram(name: "AAA3", scope: !4, file: !1, line: 5, type: !12, isLocal: false, isDefinition: false, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true) 139 !12 = !DISubroutineType(types: !13) 140 !13 = !{null, !14, !15} 141 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 142 !15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64, align: 64) 143 !16 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) 144 !17 = !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !4, file: !1, line: 6, type: !12, isLocal: false, isDefinition: false, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true) 145 !18 = !DISubprogram(name: "operator const char *", linkageName: "_ZNK4AAA3cvPKcEv", scope: !4, file: !1, line: 7, type: !19, isLocal: false, isDefinition: false, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: true) 146 !19 = !DISubroutineType(types: !20) 147 !20 = !{!15, !21} 148 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !22, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 149 !22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !4) 150 !24 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barii", scope: !1, file: !1, line: 11, type: !25, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !28) 151 !25 = !DISubroutineType(types: !26) 152 !26 = !{null, !27, !27} 153 !27 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 154 !28 = !{!29, !30, !31, !32, !33} 155 !29 = !DILocalVariable(name: "param1", arg: 1, scope: !24, file: !1, line: 11, type: !27) 156 !30 = !DILocalVariable(name: "param2", arg: 2, scope: !24, file: !1, line: 11, type: !27) 157 !31 = !DILocalVariable(name: "temp", scope: !24, file: !1, line: 12, type: !15) 158 !32 = !DILocalVariable(name: "var1", scope: !24, file: !1, line: 17, type: !4) 159 !33 = !DILocalVariable(name: "var2", scope: !24, file: !1, line: 18, type: !4) 160 !34 = distinct !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", scope: !4, file: !1, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !11, variables: !35) 161 !35 = !{!36, !38} 162 !36 = !DILocalVariable(name: "this", arg: 1, scope: !34, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer) 163 !37 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 164 !38 = !DILocalVariable(name: "value", arg: 2, scope: !34, file: !1, line: 5, type: !15) 165 !39 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !4, file: !1, line: 6, type: !12, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !17, variables: !40) 166 !40 = !{!41, !42} 167 !41 = !DILocalVariable(name: "this", arg: 1, scope: !39, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer) 168 !42 = !DILocalVariable(name: "value", arg: 2, scope: !39, file: !1, line: 6, type: !15) 169 !43 = !{i32 2, !"Dwarf Version", i32 4} 170 !44 = !{i32 2, !"Debug Info Version", i32 3} 171 !45 = !{!"clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)"} 172 !46 = !DIExpression() 173 !47 = !DILocation(line: 11, column: 15, scope: !24) 174 !48 = !DILocation(line: 11, column: 26, scope: !24) 175 !49 = !DILocation(line: 12, column: 16, scope: !24) 176 !50 = !DILocation(line: 14, column: 7, scope: !51) 177 !51 = distinct !DILexicalBlock(scope: !24, file: !1, line: 14, column: 7) 178 !52 = !DILocation(line: 14, column: 7, scope: !24) 179 !53 = !DILocation(line: 15, column: 12, scope: !54) 180 !54 = distinct !DILexicalBlock(scope: !51, file: !1, line: 14, column: 15) 181 !55 = !DILocation(line: 16, column: 3, scope: !54) 182 !56 = !DILocation(line: 17, column: 3, scope: !24) 183 !57 = !DIExpression(DW_OP_deref) 184 !58 = !DILocation(line: 17, column: 8, scope: !24) 185 !59 = !DILocation(line: 0, scope: !34, inlinedAt: !60) 186 !60 = distinct !DILocation(line: 17, column: 8, scope: !61) 187 !61 = !DILexicalBlockFile(scope: !24, file: !1, discriminator: 1) 188 !62 = !DILocation(line: 5, column: 19, scope: !34, inlinedAt: !60) 189 !63 = !DILocation(line: 5, column: 28, scope: !64, inlinedAt: !60) 190 !64 = distinct !DILexicalBlock(scope: !34, file: !1, line: 5, column: 26) 191 !65 = !DILocation(line: 18, column: 3, scope: !24) 192 !66 = !DILocation(line: 18, column: 8, scope: !24) 193 !67 = !DILocation(line: 0, scope: !34, inlinedAt: !68) 194 !68 = distinct !DILocation(line: 18, column: 8, scope: !61) 195 !69 = !DILocation(line: 5, column: 19, scope: !34, inlinedAt: !68) 196 !70 = !DILocation(line: 5, column: 28, scope: !64, inlinedAt: !68) 197 !71 = !DILocation(line: 20, column: 7, scope: !72) 198 !72 = distinct !DILexicalBlock(scope: !24, file: !1, line: 20, column: 7) 199 !73 = !DILocation(line: 0, scope: !39, inlinedAt: !74) 200 !74 = distinct !DILocation(line: 23, column: 10, scope: !72) 201 !75 = !DILocation(line: 20, column: 7, scope: !24) 202 !76 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !77) 203 !77 = distinct !DILocation(line: 21, column: 10, scope: !72) 204 !78 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !77) 205 !79 = !DILocation(line: 21, column: 5, scope: !72) 206 !80 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !74) 207 !81 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !74) 208 !82 = !DILocation(line: 0, scope: !39, inlinedAt: !83) 209 !83 = distinct !DILocation(line: 24, column: 8, scope: !24) 210 !84 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !83) 211 !85 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !83) 212 !86 = !DILocation(line: 25, column: 1, scope: !24) 213 !87 = !DILocation(line: 25, column: 1, scope: !61) 214
