130 lines
8.0 KiB
LLVM
130 lines
8.0 KiB
LLVM
; RUN: llc -O0 -mtriple=x86_64-apple-darwin < %s | grep DW_OP_breg7
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; Use DW_OP_breg7 in variable's location expression if the variable is in a stack slot.
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%struct.SVal = type { i8*, i32 }
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define i32 @_Z3fooi4SVal(i32 %i, %struct.SVal* noalias %location) nounwind ssp !dbg !17 {
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entry:
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata !23, metadata !DIExpression()), !dbg !24
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call void @llvm.dbg.value(metadata %struct.SVal* %location, i64 0, metadata !25, metadata !DIExpression()), !dbg !24
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%0 = icmp ne i32 %i, 0, !dbg !27 ; <i1> [#uses=1]
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br i1 %0, label %bb, label %bb1, !dbg !27
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bb: ; preds = %entry
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%1 = getelementptr inbounds %struct.SVal, %struct.SVal* %location, i32 0, i32 1, !dbg !29 ; <i32*> [#uses=1]
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%2 = load i32, i32* %1, align 8, !dbg !29 ; <i32> [#uses=1]
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%3 = add i32 %2, %i, !dbg !29 ; <i32> [#uses=1]
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br label %bb2, !dbg !29
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bb1: ; preds = %entry
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%4 = getelementptr inbounds %struct.SVal, %struct.SVal* %location, i32 0, i32 1, !dbg !30 ; <i32*> [#uses=1]
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%5 = load i32, i32* %4, align 8, !dbg !30 ; <i32> [#uses=1]
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%6 = sub i32 %5, 1, !dbg !30 ; <i32> [#uses=1]
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br label %bb2, !dbg !30
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bb2: ; preds = %bb1, %bb
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%.0 = phi i32 [ %3, %bb ], [ %6, %bb1 ] ; <i32> [#uses=1]
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br label %return, !dbg !29
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return: ; preds = %bb2
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ret i32 %.0, !dbg !29
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}
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define linkonce_odr void @_ZN4SValC1Ev(%struct.SVal* %this) nounwind ssp align 2 !dbg !16 {
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entry:
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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call void @llvm.dbg.value(metadata %struct.SVal* %this, i64 0, metadata !31, metadata !DIExpression()), !dbg !34
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%0 = getelementptr inbounds %struct.SVal, %struct.SVal* %this, i32 0, i32 0, !dbg !34 ; <i8**> [#uses=1]
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store i8* null, i8** %0, align 8, !dbg !34
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%1 = getelementptr inbounds %struct.SVal, %struct.SVal* %this, i32 0, i32 1, !dbg !34 ; <i32*> [#uses=1]
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store i32 0, i32* %1, align 8, !dbg !34
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br label %return, !dbg !34
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return: ; preds = %entry
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ret void, !dbg !35
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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define i32 @main() nounwind ssp !dbg !20 {
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entry:
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%0 = alloca %struct.SVal ; <%struct.SVal*> [#uses=3]
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%v = alloca %struct.SVal ; <%struct.SVal*> [#uses=4]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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call void @llvm.dbg.declare(metadata %struct.SVal* %v, metadata !38, metadata !DIExpression()), !dbg !41
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call void @_ZN4SValC1Ev(%struct.SVal* %v) nounwind, !dbg !41
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%1 = getelementptr inbounds %struct.SVal, %struct.SVal* %v, i32 0, i32 1, !dbg !42 ; <i32*> [#uses=1]
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store i32 1, i32* %1, align 8, !dbg !42
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%2 = getelementptr inbounds %struct.SVal, %struct.SVal* %0, i32 0, i32 0, !dbg !43 ; <i8**> [#uses=1]
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%3 = getelementptr inbounds %struct.SVal, %struct.SVal* %v, i32 0, i32 0, !dbg !43 ; <i8**> [#uses=1]
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%4 = load i8*, i8** %3, align 8, !dbg !43 ; <i8*> [#uses=1]
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store i8* %4, i8** %2, align 8, !dbg !43
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%5 = getelementptr inbounds %struct.SVal, %struct.SVal* %0, i32 0, i32 1, !dbg !43 ; <i32*> [#uses=1]
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%6 = getelementptr inbounds %struct.SVal, %struct.SVal* %v, i32 0, i32 1, !dbg !43 ; <i32*> [#uses=1]
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%7 = load i32, i32* %6, align 8, !dbg !43 ; <i32> [#uses=1]
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store i32 %7, i32* %5, align 8, !dbg !43
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%8 = call i32 @_Z3fooi4SVal(i32 2, %struct.SVal* noalias %0) nounwind, !dbg !43 ; <i32> [#uses=0]
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call void @llvm.dbg.value(metadata i32 %8, i64 0, metadata !44, metadata !DIExpression()), !dbg !43
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br label %return, !dbg !45
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return: ; preds = %entry
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ret i32 0, !dbg !45
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!3}
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!llvm.module.flags = !{!49}
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!46 = !{!16, !17, !20}
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!0 = !DISubprogram(name: "SVal", line: 11, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, scopeLine: 11, file: !47, scope: !1, type: !14)
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!1 = !DICompositeType(tag: DW_TAG_structure_type, name: "SVal", line: 1, size: 128, align: 64, file: !47, scope: !2, elements: !4)
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!2 = !DIFile(filename: "small.cc", directory: "/Users/manav/R8248330")
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!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, imports: null)
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!4 = !{!5, !7, !0, !9}
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!5 = !DIDerivedType(tag: DW_TAG_member, name: "Data", line: 7, size: 64, align: 64, file: !47, scope: !1, baseType: !6)
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!6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !47, scope: !2, baseType: null)
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!7 = !DIDerivedType(tag: DW_TAG_member, name: "Kind", line: 8, size: 32, align: 32, offset: 64, file: !47, scope: !1, baseType: !8)
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
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!9 = !DISubprogram(name: "~SVal", line: 12, isLocal: false, isDefinition: false, virtualIndex: 6, isOptimized: false, scopeLine: 12, file: !47, scope: !1, type: !10)
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!10 = !DISubroutineType(types: !11)
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!11 = !{null, !12, !13}
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !47, scope: !2, baseType: !1)
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!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!14 = !DISubroutineType(types: !15)
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!15 = !{null, !12}
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!16 = distinct !DISubprogram(name: "SVal", linkageName: "_ZN4SValC1Ev", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 11, file: !47, scope: !1, type: !14)
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!17 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi4SVal", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 16, file: !47, scope: !2, type: !18)
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!18 = !DISubroutineType(types: !19)
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!19 = !{!13, !13, !1}
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!20 = distinct !DISubprogram(name: "main", linkageName: "main", line: 23, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !3, scopeLine: 23, file: !47, scope: !2, type: !21)
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!21 = !DISubroutineType(types: !22)
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!22 = !{!13}
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!23 = !DILocalVariable(name: "i", line: 16, arg: 1, scope: !17, file: !2, type: !13)
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!24 = !DILocation(line: 16, scope: !17)
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!25 = !DILocalVariable(name: "location", line: 16, arg: 2, scope: !17, file: !2, type: !26)
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!26 = !DIDerivedType(tag: DW_TAG_reference_type, name: "SVal", size: 64, align: 64, file: !47, scope: !2, baseType: !1)
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!27 = !DILocation(line: 17, scope: !28)
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!28 = distinct !DILexicalBlock(line: 16, column: 0, file: !47, scope: !17)
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!29 = !DILocation(line: 18, scope: !28)
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!30 = !DILocation(line: 20, scope: !28)
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!31 = !DILocalVariable(name: "this", line: 11, arg: 1, scope: !16, file: !2, type: !32)
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!32 = !DIDerivedType(tag: DW_TAG_const_type, size: 64, align: 64, flags: DIFlagArtificial, file: !47, scope: !2, baseType: !33)
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!33 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !47, scope: !2, baseType: !1)
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!34 = !DILocation(line: 11, scope: !16)
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!35 = !DILocation(line: 11, scope: !36)
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!36 = distinct !DILexicalBlock(line: 11, column: 0, file: !47, scope: !37)
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!37 = distinct !DILexicalBlock(line: 11, column: 0, file: !47, scope: !16)
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!38 = !DILocalVariable(name: "v", line: 24, scope: !39, file: !2, type: !1)
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!39 = distinct !DILexicalBlock(line: 23, column: 0, file: !47, scope: !40)
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!40 = distinct !DILexicalBlock(line: 23, column: 0, file: !47, scope: !20)
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!41 = !DILocation(line: 24, scope: !39)
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!42 = !DILocation(line: 25, scope: !39)
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!43 = !DILocation(line: 26, scope: !39)
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!44 = !DILocalVariable(name: "k", line: 26, scope: !39, file: !2, type: !13)
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!45 = !DILocation(line: 27, scope: !39)
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!47 = !DIFile(filename: "small.cc", directory: "/Users/manav/R8248330")
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!48 = !{}
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!49 = !{i32 1, !"Debug Info Version", i32 3}
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