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145 lines
8.9 KiB
145 lines
8.9 KiB
; RUN: llc -O0 -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
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; Generated from the source file pr19307.cc:
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; #include <string>
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; void parse_range(unsigned long long &offset, unsigned long long &limit,
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; std::string range) {
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; if (range.compare(0, 6, "items=") != 0 || range[6] == '-')
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; offset = 1;
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; range.erase(0, 6);
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; limit = 2;
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; }
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; with "clang++ -S -emit-llvm -O0 -g pr19307.cc"
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; Location of "range" string is spilled from %rdx to stack and is
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; addressed via %rbp.
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; CHECK: movq %rdx, {{[-0-9]+}}(%rbp)
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; CHECK-NEXT: [[START_LABEL:.Ltmp[0-9]+]]:
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; This location should be valid until the end of the function.
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; Verify that we have proper range in debug_loc section:
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; CHECK: .Ldebug_loc{{[0-9]+}}:
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; CHECK: DW_OP_breg1
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; CHECK: .quad [[START_LABEL]]-.Lfunc_begin0
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; CHECK-NEXT: .quad .Lfunc_end0-.Lfunc_begin0
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; CHECK: DW_OP_breg6
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; CHECK: DW_OP_deref
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; ModuleID = 'pr19307.cc'
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%"class.std::basic_string" = type { %"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" }
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%"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" = type { i8* }
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@.str = private unnamed_addr constant [7 x i8] c"items=\00", align 1
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; Function Attrs: uwtable
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define void @_Z11parse_rangeRyS_Ss(i64* %offset, i64* %limit, %"class.std::basic_string"* %range) #0 !dbg !13 {
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entry:
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%offset.addr = alloca i64*, align 8
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%limit.addr = alloca i64*, align 8
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store i64* %offset, i64** %offset.addr, align 8
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call void @llvm.dbg.declare(metadata i64** %offset.addr, metadata !45, metadata !DIExpression()), !dbg !46
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store i64* %limit, i64** %limit.addr, align 8
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call void @llvm.dbg.declare(metadata i64** %limit.addr, metadata !47, metadata !DIExpression()), !dbg !46
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call void @llvm.dbg.declare(metadata %"class.std::basic_string"* %range, metadata !48, metadata !DIExpression(DW_OP_deref)), !dbg !49
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%call = call i32 @_ZNKSs7compareEmmPKc(%"class.std::basic_string"* %range, i64 0, i64 6, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0)), !dbg !50
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%cmp = icmp ne i32 %call, 0, !dbg !50
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br i1 %cmp, label %if.then, label %lor.lhs.false, !dbg !50
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lor.lhs.false: ; preds = %entry
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%call1 = call i8* @_ZNSsixEm(%"class.std::basic_string"* %range, i64 6), !dbg !52
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%0 = load i8, i8* %call1, !dbg !52
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%conv = sext i8 %0 to i32, !dbg !52
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%cmp2 = icmp eq i32 %conv, 45, !dbg !52
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br i1 %cmp2, label %if.then, label %if.end, !dbg !52
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if.then: ; preds = %lor.lhs.false, %entry
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%1 = load i64*, i64** %offset.addr, align 8, !dbg !54
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store i64 1, i64* %1, align 8, !dbg !54
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br label %if.end, !dbg !54
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if.end: ; preds = %if.then, %lor.lhs.false
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%call3 = call %"class.std::basic_string"* @_ZNSs5eraseEmm(%"class.std::basic_string"* %range, i64 0, i64 6), !dbg !55
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%2 = load i64*, i64** %limit.addr, align 8, !dbg !56
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store i64 2, i64* %2, align 8, !dbg !56
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ret void, !dbg !57
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare i32 @_ZNKSs7compareEmmPKc(%"class.std::basic_string"*, i64, i64, i8*) #2
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declare i8* @_ZNSsixEm(%"class.std::basic_string"*, i64) #2
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declare %"class.std::basic_string"* @_ZNSs5eraseEmm(%"class.std::basic_string"*, i64, i64) #2
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attributes #0 = { 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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attributes #1 = { nounwind readnone }
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attributes #2 = { "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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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!42, !43}
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!llvm.ident = !{!44}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (209308)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !21)
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!1 = !DIFile(filename: "pr19307.cc", directory: "/llvm_cmake_gcc")
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!2 = !{}
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!3 = !{!4, !6, !8}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, line: 83, flags: DIFlagFwdDecl, file: !5, identifier: "_ZTS11__mbstate_t")
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!5 = !DIFile(filename: "/usr/include/wchar.h", directory: "/llvm_cmake_gcc")
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!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "lconv", line: 54, flags: DIFlagFwdDecl, file: !7, identifier: "_ZTS5lconv")
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!7 = !DIFile(filename: "/usr/include/locale.h", directory: "/llvm_cmake_gcc")
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!8 = !DICompositeType(tag: DW_TAG_class_type, name: "basic_string<char, std::char_traits<char>, std::allocator<char> >", line: 1134, flags: DIFlagFwdDecl, file: !9, scope: !10, identifier: "_ZTSSs")
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!9 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/basic_string.tcc", directory: "/llvm_cmake_gcc")
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!10 = !DINamespace(name: "std", line: 153, file: !11, scope: null)
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!11 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/x86_64-linux-gnu/bits/c++config.h", directory: "/llvm_cmake_gcc")
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!13 = distinct !DISubprogram(name: "parse_range", linkageName: "_Z11parse_rangeRyS_Ss", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: !14, type: !15, variables: !2)
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!14 = !DIFile(filename: "pr19307.cc", directory: "/llvm_cmake_gcc")
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!15 = !DISubroutineType(types: !16)
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!16 = !{null, !17, !17, !19}
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!17 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !18)
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!18 = !DIBasicType(tag: DW_TAG_base_type, name: "long long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
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!19 = !DIDerivedType(tag: DW_TAG_typedef, name: "string", line: 65, file: !20, scope: !10, baseType: !8)
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!20 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/stringfwd.h", directory: "/llvm_cmake_gcc")
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!21 = !{!22, !26, !29, !33, !38, !41}
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!22 = !DIImportedEntity(tag: DW_TAG_imported_module, line: 57, scope: !23, entity: !25)
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!23 = !DINamespace(name: "__gnu_debug", line: 55, file: !24, scope: null)
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!24 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/debug/debug.h", directory: "/llvm_cmake_gcc")
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!25 = !DINamespace(name: "__debug", line: 49, file: !24, scope: !10)
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!26 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 66, scope: !10, entity: !27)
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!27 = !DIDerivedType(tag: DW_TAG_typedef, name: "mbstate_t", line: 106, file: !5, baseType: !28)
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!28 = !DIDerivedType(tag: DW_TAG_typedef, name: "__mbstate_t", line: 95, file: !5, baseType: !4)
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!29 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 141, scope: !10, entity: !30)
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!30 = !DIDerivedType(tag: DW_TAG_typedef, name: "wint_t", line: 141, file: !31, baseType: !32)
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!31 = !DIFile(filename: "/llvm_cmake_gcc/bin/../lib/clang/3.5.0/include/stddef.h", directory: "/llvm_cmake_gcc")
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!32 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
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!33 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 42, scope: !34, entity: !36)
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!34 = !DINamespace(name: "__gnu_cxx", line: 69, file: !35, scope: null)
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!35 = !DIFile(filename: "/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/cpp_type_traits.h", directory: "/llvm_cmake_gcc")
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!36 = !DIDerivedType(tag: DW_TAG_typedef, name: "size_t", line: 155, file: !11, scope: !10, baseType: !37)
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!37 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
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!38 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 43, scope: !34, entity: !39)
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!39 = !DIDerivedType(tag: DW_TAG_typedef, name: "ptrdiff_t", line: 156, file: !11, scope: !10, baseType: !40)
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!40 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
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!41 = !DIImportedEntity(tag: DW_TAG_imported_declaration, line: 55, scope: !10, entity: !6)
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!42 = !{i32 2, !"Dwarf Version", i32 4}
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!43 = !{i32 2, !"Debug Info Version", i32 3}
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!44 = !{!"clang version 3.5.0 (209308)"}
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!45 = !DILocalVariable(name: "offset", line: 3, arg: 1, scope: !13, file: !14, type: !17)
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!46 = !DILocation(line: 3, scope: !13)
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!47 = !DILocalVariable(name: "limit", line: 3, arg: 2, scope: !13, file: !14, type: !17)
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!48 = !DILocalVariable(name: "range", line: 4, arg: 3, scope: !13, file: !14, type: !19)
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!49 = !DILocation(line: 4, scope: !13)
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!50 = !DILocation(line: 5, scope: !51)
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!51 = distinct !DILexicalBlock(line: 5, column: 0, file: !1, scope: !13)
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!52 = !DILocation(line: 5, scope: !53)
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!53 = distinct !DILexicalBlock(line: 5, column: 0, file: !1, scope: !51)
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!54 = !DILocation(line: 6, scope: !51)
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!55 = !DILocation(line: 7, scope: !13)
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!56 = !DILocation(line: 8, scope: !13)
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!57 = !DILocation(line: 9, scope: !13)
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