forked from OSchip/llvm-project
DebugInfo: support for DWARFv5 DW_AT_alignment attribute
* Assume that clang passes non-zero alignment value to DIBuilder only in case when it was forced by C++11 'alignas', C11 '_Alignas' or compiler attribute '__attribute__((aligned (N)))'. * Emit DW_AT_alignment if alignment is specified for type/object. Differential Revision: https://reviews.llvm.org/D24425 llvm-svn: 285181
This commit is contained in:
Victor Leschuk
parent
4bddef9b39
commit
e398c6afa9
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@ -386,7 +386,7 @@ Given an integer global variable declared as follows:
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.. code-block:: c
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int MyGlobal = 100;
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_Alignas(8) int MyGlobal = 100;
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a C/C++ front-end would generate the following descriptors:
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@ -395,54 +395,59 @@ a C/C++ front-end would generate the following descriptors:
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;;
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;; Define the global itself.
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;;
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@MyGlobal = global i32 100, align 4
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@MyGlobal = global i32 100, align 8, !dbg !0
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;;
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;; List of debug info of globals
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;;
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!llvm.dbg.cu = !{!0}
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!llvm.dbg.cu = !{!1}
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;; Some unrelated metadata.
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!llvm.module.flags = !{!6, !7}
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!llvm.ident = !{!8}
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;; Define the global variable itself
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!0 = distinct !DIGlobalVariable(name: "MyGlobal", scope: !1, file: !2, line: 1, type: !5, isLocal: false, isDefinition: true, align: 64)
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;; Define the compile unit.
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!0 = !DICompileUnit(language: DW_LANG_C99, file: !1,
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producer:
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"clang version 3.7.0 (trunk 231150) (llvm/trunk 231154)",
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isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug,
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enums: !2, retainedTypes: !2, subprograms: !2, globals:
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!3, imports: !2)
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!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2,
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producer: "clang version 4.0.0 (http://llvm.org/git/clang.git ae4deadbea242e8ea517eef662c30443f75bd086) (http://llvm.org/git/llvm.git 818b4c1539df3e51dc7e62c89ead4abfd348827d)",
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isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug,
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enums: !3, globals: !4)
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;;
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;; Define the file
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;;
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!1 = !DIFile(filename: "/dev/stdin",
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!2 = !DIFile(filename: "/dev/stdin",
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directory: "/Users/dexonsmith/data/llvm/debug-info")
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;; An empty array.
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!2 = !{}
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!3 = !{}
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;; The Array of Global Variables
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!3 = !{!4}
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;;
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;; Define the global variable itself.
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;;
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!4 = !DIGlobalVariable(name: "MyGlobal", scope: !0, file: !1, line: 1,
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type: !5, isLocal: false, isDefinition: true,
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variable: i32* @MyGlobal)
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!4 = !{!0}
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;;
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;; Define the type
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;;
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!5 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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;; Dwarf version to output.
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!6 = !{i32 2, !"Dwarf Version", i32 2}
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!6 = !{i32 2, !"Dwarf Version", i32 4}
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;; Debug info schema version.
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!7 = !{i32 2, !"Debug Info Version", i32 3}
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;; Compiler identification
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!8 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git ae4deadbea242e8ea517eef662c30443f75bd086) (http://llvm.org/git/llvm.git 818b4c1539df3e51dc7e62c89ead4abfd348827d)"}
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The align value in DIGlobalVariable description specifies variable alignment in
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case it was forced by C11 _Alignas(), C++11 alignas() keywords or compiler
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attribute __attribute__((aligned ())). In other case (when this field is missing)
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alignment is considered default. This is used when producing DWARF output
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for DW_AT_alignment value.
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C/C++ function information
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--------------------------
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@ -1842,8 +1842,8 @@ public:
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StringRef getName() const { return getStringOperand(1); }
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DIFile *getFile() const { return cast_or_null<DIFile>(getRawFile()); }
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DITypeRef getType() const { return DITypeRef(getRawType()); }
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uint64_t getAlignInBits() const { return AlignInBits; }
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uint64_t getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
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DIAlignment getAlignInBits() const { return AlignInBits; }
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DIAlignment getAlignInBytes() const { return getAlignInBits() / CHAR_BIT; }
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StringRef getFilename() const {
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if (auto *F = getFile())
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@ -198,6 +198,7 @@ enum Attribute : uint16_t {
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DW_AT_rvalue_reference = 0x78,
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DW_AT_macros = 0x79,
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DW_AT_noreturn = 0x87,
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DW_AT_alignment = 0x88,
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DW_AT_lo_user = 0x2000,
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DW_AT_hi_user = 0x3fff,
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@ -118,6 +118,10 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
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else
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addGlobalName(GV->getName(), *VariableDIE, DeclContext);
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if (DIAlignment AlignInBytes = GV->getAlignInBytes())
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addUInt(*VariableDIE, dwarf::DW_AT_alignment, dwarf::DW_FORM_udata,
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AlignInBytes);
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// Add location.
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bool addToAccelTable = false;
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@ -771,7 +775,13 @@ void DwarfCompileUnit::applyVariableAttributes(const DbgVariable &Var,
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StringRef Name = Var.getName();
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if (!Name.empty())
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addString(VariableDie, dwarf::DW_AT_name, Name);
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addSourceLine(VariableDie, Var.getVariable());
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const auto *DIVar = Var.getVariable();
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if (DIVar)
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if (DIAlignment AlignInBytes = DIVar->getAlignInBytes())
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addUInt(VariableDie, dwarf::DW_AT_alignment, dwarf::DW_FORM_udata,
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AlignInBytes);
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addSourceLine(VariableDie, DIVar);
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addType(VariableDie, Var.getType());
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if (Var.isArtificial())
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addFlag(VariableDie, dwarf::DW_AT_artificial);
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@ -1007,6 +1007,11 @@ void DwarfUnit::constructTypeDIE(DIE &Buffer, const DICompositeType *CTy) {
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if (RLang)
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addUInt(Buffer, dwarf::DW_AT_APPLE_runtime_class, dwarf::DW_FORM_data1,
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RLang);
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// Add align info if available.
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if (uint64_t AlignInBytes = CTy->getAlignInBytes())
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addUInt(Buffer, dwarf::DW_AT_alignment, dwarf::DW_FORM_udata,
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AlignInBytes);
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}
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}
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@ -1394,6 +1399,7 @@ void DwarfUnit::constructMemberDIE(DIE &Buffer, const DIDerivedType *DT) {
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} else {
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uint64_t Size = DT->getSizeInBits();
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uint64_t FieldSize = DD->getBaseTypeSize(DT);
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uint64_t AlignInBytes = DT->getAlignInBytes();
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uint64_t OffsetInBytes;
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bool IsBitfield = FieldSize && Size != FieldSize;
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@ -1431,6 +1437,9 @@ void DwarfUnit::constructMemberDIE(DIE &Buffer, const DIDerivedType *DT) {
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} else {
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// This is not a bitfield.
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OffsetInBytes = DT->getOffsetInBits() / 8;
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if (AlignInBytes)
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addUInt(MemberDie, dwarf::DW_AT_alignment, dwarf::DW_FORM_udata,
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AlignInBytes);
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}
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if (DD->getDwarfVersion() <= 2) {
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@ -1507,6 +1516,10 @@ DIE *DwarfUnit::getOrCreateStaticMemberDIE(const DIDerivedType *DT) {
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if (const ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(DT->getConstant()))
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addConstantFPValue(StaticMemberDIE, CFP);
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if (uint64_t AlignInBytes = DT->getAlignInBytes())
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addUInt(StaticMemberDIE, dwarf::DW_AT_alignment, dwarf::DW_FORM_udata,
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AlignInBytes);
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return &StaticMemberDIE;
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}
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@ -149,6 +149,8 @@ StringRef llvm::dwarf::AttributeString(unsigned Attribute) {
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case DW_AT_reference: return "DW_AT_reference";
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case DW_AT_rvalue_reference: return "DW_AT_rvalue_reference";
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case DW_AT_noreturn: return "DW_AT_noreturn";
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case DW_AT_alignment:
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return "DW_AT_alignment";
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case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
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case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
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case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
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@ -0,0 +1,83 @@
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; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; REQUIRES: object-emission
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; Generated by clang -c -g -std=c11 -S -emit-llvm from the following C11 source
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;
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; // every object of type struct data will be aligned to 128-byte boundary
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; struct data {
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; char x;
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; _Alignas(128) char arr[2];
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; };
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;
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; _Alignas(2048) struct data d; // this instance of data is aligned even stricter
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; int foo(void)
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; {
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; struct data local_data;
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; return 0;
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; }
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; CHECK: DW_TAG_variable
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name{{.*}}"d"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_alignment{{.*}}2048
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; CHECK: DW_TAG_structure_type
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; CHECK: DW_TAG_member
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; CHECK: DW_TAG_member
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name{{.*}}"arr"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_alignment{{.*}}128
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; ModuleID = 'test.c'
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source_filename = "test.c"
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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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%struct.data = type { i8, [127 x i8], [2 x i8], [126 x i8] }
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@d = common global %struct.data zeroinitializer, align 2048, !dbg !0
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; Function Attrs: nounwind uwtable
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define i32 @foo() #0 !dbg !17 {
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entry:
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%local_data = alloca %struct.data, align 128
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call void @llvm.dbg.declare(metadata %struct.data* %local_data, metadata !21, metadata !22), !dbg !23
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ret i32 0, !dbg !24
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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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attributes #0 = { nounwind uwtable }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!1}
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!llvm.module.flags = !{!14, !15}
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!llvm.ident = !{!16}
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!0 = distinct !DIGlobalVariable(name: "d", scope: !1, file: !5, line: 7, type: !6, isLocal: false, isDefinition: true, align: 16384)
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!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, producer: "clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, globals: !4)
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!2 = !DIFile(filename: "test.c", directory: "/tmp")
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!3 = !{}
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!4 = !{!0}
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!5 = !DIFile(filename: "test.c", directory: "/tmp")
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "data", file: !5, line: 2, size: 2048, elements: !7)
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!7 = !{!8, !10}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !6, file: !5, line: 3, baseType: !9, size: 8)
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!9 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!10 = !DIDerivedType(tag: DW_TAG_member, name: "arr", scope: !6, file: !5, line: 4, baseType: !11, size: 16, align: 1024, offset: 1024)
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!11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !9, size: 16, elements: !12)
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!12 = !{!13}
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!13 = !DISubrange(count: 2)
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!14 = !{i32 2, !"Dwarf Version", i32 4}
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!15 = !{i32 2, !"Debug Info Version", i32 3}
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!16 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)"}
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!17 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 8, type: !18, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !1, variables: !3)
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!18 = !DISubroutineType(types: !19)
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!19 = !{!20}
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!20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!21 = !DILocalVariable(name: "local_data", scope: !17, file: !5, line: 10, type: !6)
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!22 = !DIExpression()
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!23 = !DILocation(line: 10, column: 17, scope: !17)
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!24 = !DILocation(line: 11, column: 5, scope: !17)
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@ -0,0 +1,172 @@
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; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; REQUIRES: object-emission
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; Generated by clang++ -c -g -std=c++11 -S -emit-llvm from the following C++11 source
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; struct S {
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; char x;
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; alignas(128) char xx;
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; };
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;
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; class alignas(64) C0 {
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; };
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;
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; class C1 {
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; alignas(64) static void *p;
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; };
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;
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; enum alignas(16) E {
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; A,
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; B,
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; C,
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; };
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;
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; C0 c0;
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;
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; alignas(2048) S s;
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;
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; void foo()
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; {
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; S ss;
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; E e;
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; C1 c1;
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; alignas(32) int i = 42;
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; auto Lambda = [i](){};
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; }
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; CHECK: DW_TAG_class_type
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name{{.*}}"C0"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_alignment{{.*}}64
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|
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; CHECK: DW_TAG_variable
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"s"
|
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; CHECK-NOT: DW_TAG
|
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; CHECK: DW_AT_alignment{{.*}}2048
|
||||
|
||||
; CHECK: DW_TAG_structure_type
|
||||
; CHECK: DW_TAG_member
|
||||
; CHECK: DW_AT_name{{.*}}"xx"
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||||
; CHECK-NOT: DW_TAG
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||||
; CHECK: DW_AT_alignment{{.*}}128
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||||
|
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; CHECK: DW_TAG_enumeration_type
|
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_alignment{{.*}}16
|
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|
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; CHECK: DW_TAG_variable
|
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; CHECK: DW_AT_name{{.*}}"i"
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}32
|
||||
; CHECK: DW_TAG_class_type
|
||||
; CHECK: DW_TAG_member
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"i"
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}32
|
||||
|
||||
; CHECK: DW_TAG_class_type
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"C1"
|
||||
; CHECK: DW_TAG_member
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"p"
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}64
|
||||
|
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; ModuleID = 'test.cpp'
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source_filename = "test.cpp"
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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.C0 = type { [64 x i8] }
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%struct.S = type { i8, [127 x i8], i8, [127 x i8] }
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%class.C1 = type { i8 }
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%class.anon = type { i32 }
|
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|
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@c0 = global %class.C0 zeroinitializer, align 64, !dbg !0
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@s = global %struct.S zeroinitializer, align 2048, !dbg !11
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|
||||
; Function Attrs: nounwind uwtable
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define void @_Z3foov() #0 !dbg !22 {
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entry:
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||||
%ss = alloca %struct.S, align 128
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||||
%e = alloca i32, align 16
|
||||
%c1 = alloca %class.C1, align 1
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%i = alloca i32, align 32
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%Lambda = alloca %class.anon, align 4
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call void @llvm.dbg.declare(metadata %struct.S* %ss, metadata !25, metadata !26), !dbg !27
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call void @llvm.dbg.declare(metadata i32* %e, metadata !28, metadata !26), !dbg !29
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call void @llvm.dbg.declare(metadata %class.C1* %c1, metadata !30, metadata !26), !dbg !35
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call void @llvm.dbg.declare(metadata i32* %i, metadata !36, metadata !26), !dbg !38
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store i32 42, i32* %i, align 32, !dbg !38
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call void @llvm.dbg.declare(metadata %class.anon* %Lambda, metadata !39, metadata !26), !dbg !48
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%0 = getelementptr inbounds %class.anon, %class.anon* %Lambda, i32 0, i32 0, !dbg !49
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%1 = load i32, i32* %i, align 32, !dbg !50
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store i32 %1, i32* %0, align 4, !dbg !49
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ret void, !dbg !51
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||||
}
|
||||
|
||||
; Function Attrs: nounwind readnone
|
||||
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
||||
|
||||
attributes #0 = { nounwind uwtable }
|
||||
attributes #1 = { nounwind readnone }
|
||||
|
||||
!llvm.dbg.cu = !{!1}
|
||||
!llvm.module.flags = !{!19, !20}
|
||||
!llvm.ident = !{!21}
|
||||
|
||||
!0 = distinct !DIGlobalVariable(name: "c0", scope: !1, file: !5, line: 19, type: !17, isLocal: false, isDefinition: true)
|
||||
!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !3, globals: !10)
|
||||
!2 = !DIFile(filename: "test.cpp", directory: "/tmp")
|
||||
!3 = !{!4}
|
||||
!4 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "E", file: !5, line: 13, size: 32, align: 128, elements: !6, identifier: "_ZTS1E")
|
||||
!5 = !DIFile(filename: "./test.cpp", directory: "/tmp")
|
||||
!6 = !{!7, !8, !9}
|
||||
!7 = !DIEnumerator(name: "A", value: 0)
|
||||
!8 = !DIEnumerator(name: "B", value: 1)
|
||||
!9 = !DIEnumerator(name: "C", value: 2)
|
||||
!10 = !{!0, !11}
|
||||
!11 = distinct !DIGlobalVariable(name: "s", scope: !1, file: !5, line: 21, type: !12, isLocal: false, isDefinition: true, align: 16384)
|
||||
!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !5, line: 1, size: 2048, elements: !13, identifier: "_ZTS1S")
|
||||
!13 = !{!14, !16}
|
||||
!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !12, file: !5, line: 2, baseType: !15, size: 8)
|
||||
!15 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
|
||||
!16 = !DIDerivedType(tag: DW_TAG_member, name: "xx", scope: !12, file: !5, line: 3, baseType: !15, size: 8, align: 1024, offset: 1024)
|
||||
!17 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "C0", file: !5, line: 6, size: 512, align: 512, elements: !18, identifier: "_ZTS2C0")
|
||||
!18 = !{}
|
||||
!19 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!20 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!21 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)"}
|
||||
!22 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !5, file: !5, line: 23, type: !23, isLocal: false, isDefinition: true, scopeLine: 24, flags: DIFlagPrototyped, isOptimized: false, unit: !1, variables: !18)
|
||||
!23 = !DISubroutineType(types: !24)
|
||||
!24 = !{null}
|
||||
!25 = !DILocalVariable(name: "ss", scope: !22, file: !5, line: 25, type: !12)
|
||||
!26 = !DIExpression()
|
||||
!27 = !DILocation(line: 25, column: 7, scope: !22)
|
||||
!28 = !DILocalVariable(name: "e", scope: !22, file: !5, line: 26, type: !4)
|
||||
!29 = !DILocation(line: 26, column: 7, scope: !22)
|
||||
!30 = !DILocalVariable(name: "c1", scope: !22, file: !5, line: 27, type: !31)
|
||||
!31 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "C1", file: !5, line: 9, size: 8, elements: !32, identifier: "_ZTS2C1")
|
||||
!32 = !{!33}
|
||||
!33 = !DIDerivedType(tag: DW_TAG_member, name: "p", scope: !31, file: !5, line: 10, baseType: !34, align: 512, flags: DIFlagStaticMember)
|
||||
!34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
|
||||
!35 = !DILocation(line: 27, column: 8, scope: !22)
|
||||
!36 = !DILocalVariable(name: "i", scope: !22, file: !5, line: 28, type: !37, align: 256)
|
||||
!37 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!38 = !DILocation(line: 28, column: 21, scope: !22)
|
||||
!39 = !DILocalVariable(name: "Lambda", scope: !22, file: !5, line: 29, type: !40)
|
||||
!40 = distinct !DICompositeType(tag: DW_TAG_class_type, scope: !22, file: !5, line: 29, size: 32, elements: !41)
|
||||
!41 = !{!42, !43}
|
||||
!42 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !40, file: !5, line: 29, baseType: !37, size: 32, align: 256)
|
||||
!43 = !DISubprogram(name: "operator()", scope: !40, file: !5, line: 29, type: !44, isLocal: false, isDefinition: false, scopeLine: 29, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false)
|
||||
!44 = !DISubroutineType(types: !45)
|
||||
!45 = !{null, !46}
|
||||
!46 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !47, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
|
||||
!47 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !40)
|
||||
!48 = !DILocation(line: 29, column: 10, scope: !22)
|
||||
!49 = !DILocation(line: 29, column: 19, scope: !22)
|
||||
!50 = !DILocation(line: 29, column: 20, scope: !22)
|
||||
!51 = !DILocation(line: 30, column: 1, scope: !22)
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
|
||||
; REQUIRES: object-emission
|
||||
|
||||
; typedef struct __attribute__((aligned (128))) {
|
||||
; char c;
|
||||
; } S0;
|
||||
;
|
||||
; typedef struct {
|
||||
; __attribute__((aligned (64))) char c;
|
||||
; } S1;
|
||||
;
|
||||
; S0 s0;
|
||||
;
|
||||
; void f() {
|
||||
; S1 s1;
|
||||
; __attribute__((aligned (32))) int i;
|
||||
; }
|
||||
|
||||
; CHECK: DW_TAG_typedef
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"S0"
|
||||
; CHECK: DW_TAG_structure_type
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}128
|
||||
|
||||
; CHECK: DW_TAG_variable
|
||||
; CHECK: DW_AT_name{{.*}}"i"
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}32
|
||||
|
||||
; CHECK: DW_TAG_typedef
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"S1"
|
||||
; CHECK: DW_TAG_structure_type
|
||||
; CHECK: DW_TAG_member
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_name{{.*}}"c"
|
||||
; CHECK-NOT: DW_TAG
|
||||
; CHECK: DW_AT_alignment{{.*}}64
|
||||
|
||||
; ModuleID = 'test.m'
|
||||
source_filename = "test.m"
|
||||
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||||
target triple = "x86_64-unknown-linux-gnu"
|
||||
|
||||
%struct.S0 = type { i8, [127 x i8] }
|
||||
%struct.S1 = type { i8, [63 x i8] }
|
||||
|
||||
@s0 = common global %struct.S0 zeroinitializer, align 128, !dbg !0
|
||||
|
||||
; Function Attrs: nounwind uwtable
|
||||
define void @f() #0 !dbg !14 {
|
||||
entry:
|
||||
%s1 = alloca %struct.S1, align 64
|
||||
%i = alloca i32, align 32
|
||||
call void @llvm.dbg.declare(metadata %struct.S1* %s1, metadata !17, metadata !22), !dbg !23
|
||||
call void @llvm.dbg.declare(metadata i32* %i, metadata !24, metadata !22), !dbg !26
|
||||
ret void, !dbg !27
|
||||
}
|
||||
|
||||
; Function Attrs: nounwind readnone
|
||||
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
||||
|
||||
attributes #0 = { nounwind uwtable }
|
||||
attributes #1 = { nounwind readnone }
|
||||
|
||||
!llvm.dbg.cu = !{!1}
|
||||
!llvm.module.flags = !{!11, !12}
|
||||
!llvm.ident = !{!13}
|
||||
|
||||
!0 = distinct !DIGlobalVariable(name: "s0", scope: !1, file: !5, line: 10, type: !6, isLocal: false, isDefinition: true)
|
||||
!1 = distinct !DICompileUnit(language: DW_LANG_ObjC, file: !2, producer: "clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)", isOptimized: false, runtimeVersion: 1, emissionKind: FullDebug, enums: !3, globals: !4)
|
||||
!2 = !DIFile(filename: "test.m", directory: "/tmp")
|
||||
!3 = !{}
|
||||
!4 = !{!0}
|
||||
!5 = !DIFile(filename: "test.m", directory: "/tmp")
|
||||
!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "S0", file: !5, line: 3, baseType: !7)
|
||||
!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !5, line: 1, size: 1024, align: 1024, elements: !8)
|
||||
!8 = !{!9}
|
||||
!9 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !7, file: !5, line: 2, baseType: !10, size: 8)
|
||||
!10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
|
||||
!11 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!12 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!13 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git 9ce5220b821054019059c2ac4a9b132c7723832d) (http://llvm.org/git/llvm.git 9a6298be89ce0359b151c0a37af2776a12c69e85)"}
|
||||
!14 = distinct !DISubprogram(name: "f", scope: !5, file: !5, line: 12, type: !15, isLocal: false, isDefinition: true, scopeLine: 12, isOptimized: false, unit: !1, variables: !3)
|
||||
!15 = !DISubroutineType(types: !16)
|
||||
!16 = !{null}
|
||||
!17 = !DILocalVariable(name: "s1", scope: !14, file: !5, line: 13, type: !18)
|
||||
!18 = !DIDerivedType(tag: DW_TAG_typedef, name: "S1", file: !5, line: 8, baseType: !19)
|
||||
!19 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !5, line: 6, size: 512, elements: !20)
|
||||
!20 = !{!21}
|
||||
!21 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !19, file: !5, line: 7, baseType: !10, size: 8, align: 512)
|
||||
!22 = !DIExpression()
|
||||
!23 = !DILocation(line: 13, column: 6, scope: !14)
|
||||
!24 = !DILocalVariable(name: "i", scope: !14, file: !5, line: 14, type: !25, align: 256)
|
||||
!25 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!26 = !DILocation(line: 14, column: 37, scope: !14)
|
||||
!27 = !DILocation(line: 15, column: 1, scope: !14)
|
||||
|
|
@ -102,11 +102,11 @@ attributes #1 = { nounwind readnone }
|
|||
!4 = !DIFile(filename: "dwarf-public-names.cpp", directory: "/usr2/kparzysz/s.hex/t")
|
||||
!5 = !DISubroutineType(types: !6)
|
||||
!6 = !{null, !7}
|
||||
!7 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8)
|
||||
!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "C", line: 1, size: 8, align: 8, file: !37, elements: !9)
|
||||
!7 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8)
|
||||
!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "C", line: 1, size: 8, file: !37, elements: !9)
|
||||
!9 = !{!10, !12, !14}
|
||||
!10 = !DIDerivedType(tag: DW_TAG_member, name: "static_member_variable", line: 4, flags: DIFlagStaticMember, file: !37, scope: !8, baseType: !11)
|
||||
!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
||||
!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!12 = !DISubprogram(name: "member_function", linkageName: "_ZN1C15member_functionEv", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !4, scope: !8, type: !5, variables: !13)
|
||||
!13 = !{} ; previously: invalid DW_TAG_base_type
|
||||
!14 = !DISubprogram(name: "static_member_function", linkageName: "_ZN1C22static_member_functionEv", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !4, scope: !8, type: !15, variables: !17)
|
||||
|
|
@ -124,7 +124,7 @@ attributes #1 = { nounwind readnone }
|
|||
!26 = !DIGlobalVariable(name: "global_variable", line: 17, isLocal: false, isDefinition: true, scope: null, file: !4, type: !8)
|
||||
!27 = !DIGlobalVariable(name: "global_namespace_variable", linkageName: "_ZN2ns25global_namespace_variableE", line: 27, isLocal: false, isDefinition: true, scope: !21, file: !4, type: !11)
|
||||
!28 = !DILocalVariable(name: "this", line: 9, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !3, file: !4, type: !29)
|
||||
!29 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !8)
|
||||
!29 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !8)
|
||||
!30 = !DILocation(line: 9, scope: !3)
|
||||
!31 = !DILocation(line: 10, scope: !3)
|
||||
!32 = !DILocation(line: 11, scope: !3)
|
||||
|
|
|
|||
Loading…
Reference in New Issue