forked from OSchip/llvm-project
[DEBUG_INFO][NVPTX] Generate DW_AT_address_class to get the values in debugger.
Summary: According to https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf, the compiler should emit the DW_AT_address_class attribute for all variable and parameter. It means, that DW_AT_address_class attribute should be used in the non-standard way to support compatibility with the cuda-gdb debugger. Clang is able to generate the information about the variable address class. This information is emitted as the expression sequence `DW_OP_constu <DWARF Address Space> DW_OP_swap DW_OP_xderef`. The patch tries to find all such expressions and transform them into `DW_AT_address_class <DWARF Address Space>` if target is NVPTX and the debugger is gdb. If the expression is not found, then default values are used. For the local variables <DWARF Address Space> is set to ADDR_local_space(6), for the globals <DWARF Address Space> is set to ADDR_global_space(5). The values are taken from the table in the same section 5.2. CUDA-Specific DWARF Definitions. Reviewers: echristo, probinson Subscribers: jholewinski, aprantl, llvm-commits Differential Revision: https://reviews.llvm.org/D57157 llvm-svn: 353203
This commit is contained in:
Alexey Bataev
parent
a3f9b71c09
commit
f3a9150324
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@ -2510,6 +2510,12 @@ public:
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/// return true with an offset of zero.
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bool extractIfOffset(int64_t &Offset) const;
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/// Checks if the last 4 elements of the expression are DW_OP_constu <DWARF
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/// Address Space> DW_OP_swap DW_OP_xderef and extracts the <DWARF Address
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/// Space>.
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static const DIExpression *extractAddressClass(const DIExpression *Expr,
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unsigned &AddrClass);
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/// Constants for DIExpression::prepend.
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enum { NoDeref = false, WithDeref = true, WithStackValue = true };
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@ -167,6 +167,7 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
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// Add location.
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bool addToAccelTable = false;
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DIELoc *Loc = nullptr;
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Optional<unsigned> NVPTXAddressSpace;
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std::unique_ptr<DIEDwarfExpression> DwarfExpr;
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for (const auto &GE : GlobalExprs) {
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const GlobalVariable *Global = GE.Var;
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@ -200,8 +201,24 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
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DwarfExpr = llvm::make_unique<DIEDwarfExpression>(*Asm, *this, *Loc);
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}
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if (Expr)
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if (Expr) {
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// According to
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// https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf
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// cuda-gdb requires DW_AT_address_class for all variables to be able to
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// correctly interpret address space of the variable address.
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// Decode DW_OP_constu <DWARF Address Space> DW_OP_swap DW_OP_xderef
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// sequence for the NVPTX + gdb target.
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unsigned LocalNVPTXAddressSpace;
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if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) {
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const DIExpression *NewExpr =
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DIExpression::extractAddressClass(Expr, LocalNVPTXAddressSpace);
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if (NewExpr != Expr) {
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Expr = NewExpr;
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NVPTXAddressSpace = LocalNVPTXAddressSpace;
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}
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}
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DwarfExpr->addFragmentOffset(Expr);
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}
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if (Global) {
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const MCSymbol *Sym = Asm->getSymbol(Global);
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@ -246,6 +263,15 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
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DwarfExpr->setMemoryLocationKind();
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DwarfExpr->addExpression(Expr);
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}
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if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) {
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// According to
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// https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf
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// cuda-gdb requires DW_AT_address_class for all variables to be able to
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// correctly interpret address space of the variable address.
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const unsigned NVPTX_ADDR_global_space = 5;
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addUInt(*VariableDIE, dwarf::DW_AT_address_class, dwarf::DW_FORM_data1,
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NVPTXAddressSpace ? *NVPTXAddressSpace : NVPTX_ADDR_global_space);
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}
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if (Loc)
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addBlock(*VariableDIE, dwarf::DW_AT_location, DwarfExpr->finalize());
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@ -591,6 +617,7 @@ DIE *DwarfCompileUnit::constructVariableDIEImpl(const DbgVariable &DV,
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if (!DV.hasFrameIndexExprs())
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return VariableDie;
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Optional<unsigned> NVPTXAddressSpace;
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DIELoc *Loc = new (DIEValueAllocator) DIELoc;
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DIEDwarfExpression DwarfExpr(*Asm, *this, *Loc);
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for (auto &Fragment : DV.getFrameIndexExprs()) {
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@ -602,7 +629,23 @@ DIE *DwarfCompileUnit::constructVariableDIEImpl(const DbgVariable &DV,
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SmallVector<uint64_t, 8> Ops;
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Ops.push_back(dwarf::DW_OP_plus_uconst);
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Ops.push_back(Offset);
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Ops.append(Expr->elements_begin(), Expr->elements_end());
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// According to
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// https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf
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// cuda-gdb requires DW_AT_address_class for all variables to be able to
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// correctly interpret address space of the variable address.
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// Decode DW_OP_constu <DWARF Address Space> DW_OP_swap DW_OP_xderef
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// sequence for the NVPTX + gdb target.
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unsigned LocalNVPTXAddressSpace;
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if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) {
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const DIExpression *NewExpr =
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DIExpression::extractAddressClass(Expr, LocalNVPTXAddressSpace);
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if (NewExpr != Expr) {
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Expr = NewExpr;
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NVPTXAddressSpace = LocalNVPTXAddressSpace;
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}
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}
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if (Expr)
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Ops.append(Expr->elements_begin(), Expr->elements_end());
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DIExpressionCursor Cursor(Ops);
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DwarfExpr.setMemoryLocationKind();
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if (const MCSymbol *FrameSymbol = Asm->getFunctionFrameSymbol())
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@ -612,6 +655,15 @@ DIE *DwarfCompileUnit::constructVariableDIEImpl(const DbgVariable &DV,
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*Asm->MF->getSubtarget().getRegisterInfo(), Cursor, FrameReg);
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DwarfExpr.addExpression(std::move(Cursor));
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}
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if (Asm->TM.getTargetTriple().isNVPTX() && DD->tuneForGDB()) {
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// According to
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// https://docs.nvidia.com/cuda/archive/10.0/ptx-writers-guide-to-interoperability/index.html#cuda-specific-dwarf
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// cuda-gdb requires DW_AT_address_class for all variables to be able to
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// correctly interpret address space of the variable address.
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const unsigned NVPTX_ADDR_local_space = 6;
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addUInt(*VariableDie, dwarf::DW_AT_address_class, dwarf::DW_FORM_data1,
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NVPTXAddressSpace ? *NVPTXAddressSpace : NVPTX_ADDR_local_space);
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}
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addBlock(*VariableDie, dwarf::DW_AT_location, DwarfExpr.finalize());
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return VariableDie;
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@ -928,6 +928,24 @@ bool DIExpression::extractIfOffset(int64_t &Offset) const {
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return false;
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}
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const DIExpression *DIExpression::extractAddressClass(const DIExpression *Expr,
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unsigned &AddrClass) {
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const unsigned PatternSize = 4;
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if (Expr->Elements.size() >= PatternSize &&
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Expr->Elements[PatternSize - 4] == dwarf::DW_OP_constu &&
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Expr->Elements[PatternSize - 2] == dwarf::DW_OP_swap &&
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Expr->Elements[PatternSize - 1] == dwarf::DW_OP_xderef) {
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AddrClass = Expr->Elements[PatternSize - 3];
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if (Expr->Elements.size() == PatternSize)
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return nullptr;
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return DIExpression::get(Expr->getContext(),
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makeArrayRef(&*Expr->Elements.begin(),
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Expr->Elements.size() - PatternSize));
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}
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return Expr;
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}
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DIExpression *DIExpression::prepend(const DIExpression *Expr, bool DerefBefore,
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int64_t Offset, bool DerefAfter,
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bool StackValue) {
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@ -68,6 +68,8 @@
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; CHECK-NEXT: .b8 3 // Abbreviation Code
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; CHECK-NEXT: .b8 52 // DW_TAG_variable
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; CHECK-NEXT: .b8 0 // DW_CHILDREN_no
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; CHECK-NEXT: .b8 51 // DW_AT_address_class
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; CHECK-NEXT: .b8 11 // DW_FORM_data1
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; CHECK-NEXT: .b8 2 // DW_AT_location
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; CHECK-NEXT: .b8 10 // DW_FORM_block1
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; CHECK-NEXT: .b8 3 // DW_AT_name
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@ -123,12 +125,12 @@
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; CHECK-NEXT: }
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; CHECK-NEXT: .section .debug_info
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; CHECK-NEXT: {
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; CHECK-NEXT: .b32 135 // Length of Unit
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; CHECK-NEXT: .b32 136 // Length of Unit
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; CHECK-NEXT: .b8 2 // DWARF version number
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b32 .debug_abbrev // Offset Into Abbrev. Section
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; CHECK-NEXT: .b8 8 // Address Size (in bytes)
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; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0x80 DW_TAG_compile_unit
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; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0x81 DW_TAG_compile_unit
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; CHECK-NEXT: .b8 99,108,97,110,103 // DW_AT_producer
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b8 12 // DW_AT_language
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@ -140,7 +142,7 @@
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc
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; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc
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; CHECK-NEXT: .b8 2 // Abbrev [2] 0x31:0x3d DW_TAG_subprogram
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; CHECK-NEXT: .b8 2 // Abbrev [2] 0x31:0x3e DW_TAG_subprogram
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; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc
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; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc
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; CHECK-NEXT: .b8 1 // DW_AT_frame_base
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@ -151,7 +153,8 @@
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; CHECK-NEXT: .b8 3 // DW_AT_decl_line
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; CHECK-NEXT: .b8 1 // DW_AT_prototyped
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; CHECK-NEXT: .b8 1 // DW_AT_external
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; CHECK-NEXT: .b8 3 // Abbrev [3] 0x58:0x15 DW_TAG_variable
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; CHECK-NEXT: .b8 3 // Abbrev [3] 0x58:0x16 DW_TAG_variable
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; CHECK-NEXT: .b8 6 // DW_AT_address_class
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; CHECK-NEXT: .b8 11 // DW_AT_location
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; CHECK-NEXT: .b8 3
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; CHECK-NEXT: .b64 __local_depot0
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@ -161,25 +164,25 @@
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b8 1 // DW_AT_decl_file
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; CHECK-NEXT: .b8 4 // DW_AT_decl_line
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; CHECK-NEXT: .b32 110 // DW_AT_type
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; CHECK-NEXT: .b32 111 // DW_AT_type
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; CHECK-NEXT: .b8 0 // End Of Children Mark
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; CHECK-NEXT: .b8 4 // Abbrev [4] 0x6e:0x15 DW_TAG_structure_type
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; CHECK-NEXT: .b8 4 // Abbrev [4] 0x6f:0x15 DW_TAG_structure_type
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; CHECK-NEXT: .b8 70,111,111 // DW_AT_name
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b8 4 // DW_AT_byte_size
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; CHECK-NEXT: .b8 1 // DW_AT_decl_file
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; CHECK-NEXT: .b8 1 // DW_AT_decl_line
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; CHECK-NEXT: .b8 5 // Abbrev [5] 0x76:0xc DW_TAG_member
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; CHECK-NEXT: .b8 5 // Abbrev [5] 0x77:0xc DW_TAG_member
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; CHECK-NEXT: .b8 120 // DW_AT_name
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b32 131 // DW_AT_type
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; CHECK-NEXT: .b32 132 // DW_AT_type
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; CHECK-NEXT: .b8 1 // DW_AT_decl_file
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; CHECK-NEXT: .b8 1 // DW_AT_decl_line
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; CHECK-NEXT: .b8 2 // DW_AT_data_member_location
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; CHECK-NEXT: .b8 35
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b8 0 // End Of Children Mark
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; CHECK-NEXT: .b8 6 // Abbrev [6] 0x83:0x7 DW_TAG_base_type
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; CHECK-NEXT: .b8 6 // Abbrev [6] 0x84:0x7 DW_TAG_base_type
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; CHECK-NEXT: .b8 105,110,116 // DW_AT_name
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; CHECK-NEXT: .b8 0
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; CHECK-NEXT: .b8 5 // DW_AT_encoding
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@ -0,0 +1,255 @@
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; RUN: llc -mtriple=nvptx64-nvidia-cuda < %s | FileCheck %s
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@GLOBAL = addrspace(1) externally_initialized global i32 0, align 4, !dbg !0
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@SHARED = addrspace(3) externally_initialized global i32 undef, align 4, !dbg !6
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define void @test(float, float*, float*, i32) !dbg !17 {
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%5 = alloca float, align 4
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%6 = alloca float*, align 8
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%7 = alloca float*, align 8
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%8 = alloca i32, align 4
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store float %0, float* %5, align 4
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call void @llvm.dbg.declare(metadata float* %5, metadata !22, metadata !DIExpression()), !dbg !23
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store float* %1, float** %6, align 8
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call void @llvm.dbg.declare(metadata float** %6, metadata !24, metadata !DIExpression()), !dbg !25
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store float* %2, float** %7, align 8
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call void @llvm.dbg.declare(metadata float** %7, metadata !26, metadata !DIExpression()), !dbg !27
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store i32 %3, i32* %8, align 4
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call void @llvm.dbg.declare(metadata i32* %8, metadata !28, metadata !DIExpression()), !dbg !29
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%9 = load float, float* %5, align 4, !dbg !30
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%10 = load float*, float** %6, align 8, !dbg !31
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%11 = load i32, i32* %8, align 4, !dbg !32
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%12 = sext i32 %11 to i64, !dbg !31
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%13 = getelementptr inbounds float, float* %10, i64 %12, !dbg !31
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%14 = load float, float* %13, align 4, !dbg !31
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%15 = fmul contract float %9, %14, !dbg !33
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%16 = load float*, float** %7, align 8, !dbg !34
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%17 = load i32, i32* %8, align 4, !dbg !35
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%18 = sext i32 %17 to i64, !dbg !34
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%19 = getelementptr inbounds float, float* %16, i64 %18, !dbg !34
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store float %15, float* %19, align 4, !dbg !36
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store i32 0, i32* addrspacecast (i32 addrspace(1)* @GLOBAL to i32*), align 4, !dbg !37
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store i32 0, i32* addrspacecast (i32 addrspace(3)* @SHARED to i32*), align 4, !dbg !38
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ret void, !dbg !39
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!nvvm.annotations = !{!10}
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!llvm.module.flags = !{!11, !12, !13, !14, !15}
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!llvm.ident = !{!16}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "GLOBAL", scope: !2, file: !8, line: 3, type: !9, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 9.0.0 (trunk 351969) (llvm/trunk 351973)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
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!3 = !DIFile(filename: "new.cc", directory: "/tmp")
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!4 = !{}
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!5 = !{!0, !6}
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression(DW_OP_constu, 8, DW_OP_swap, DW_OP_xderef))
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!7 = distinct !DIGlobalVariable(name: "SHARED", scope: !2, file: !8, line: 4, type: !9, isLocal: false, isDefinition: true)
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!8 = !DIFile(filename: "test.cu", directory: "/tmp")
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!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!10 = !{void (float, float*, float*, i32)* @test, !"kernel", i32 1}
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!11 = !{i32 2, !"Dwarf Version", i32 2}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{i32 1, !"wchar_size", i32 4}
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!14 = !{i32 4, !"nvvm-reflect-ftz", i32 0}
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!15 = !{i32 7, !"PIC Level", i32 2}
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!16 = !{!"clang version 9.0.0 (trunk 351969) (llvm/trunk 351973)"}
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!17 = distinct !DISubprogram(name: "test", linkageName: "test", scope: !8, file: !8, line: 6, type: !18, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4)
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!18 = !DISubroutineType(types: !19)
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!19 = !{null, !20, !21, !21, !9}
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!20 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
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!22 = !DILocalVariable(name: "a", arg: 1, scope: !17, file: !8, line: 6, type: !20)
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!23 = !DILocation(line: 6, column: 41, scope: !17)
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!24 = !DILocalVariable(name: "x", arg: 2, scope: !17, file: !8, line: 6, type: !21)
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!25 = !DILocation(line: 6, column: 51, scope: !17)
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!26 = !DILocalVariable(name: "y", arg: 3, scope: !17, file: !8, line: 6, type: !21)
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!27 = !DILocation(line: 6, column: 61, scope: !17)
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!28 = !DILocalVariable(name: "i", arg: 4, scope: !17, file: !8, line: 6, type: !9)
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!29 = !DILocation(line: 6, column: 68, scope: !17)
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!30 = !DILocation(line: 7, column: 10, scope: !17)
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!31 = !DILocation(line: 7, column: 14, scope: !17)
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!32 = !DILocation(line: 7, column: 16, scope: !17)
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!33 = !DILocation(line: 7, column: 12, scope: !17)
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!34 = !DILocation(line: 7, column: 3, scope: !17)
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!35 = !DILocation(line: 7, column: 5, scope: !17)
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!36 = !DILocation(line: 7, column: 8, scope: !17)
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!37 = !DILocation(line: 8, column: 10, scope: !17)
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!38 = !DILocation(line: 9, column: 10, scope: !17)
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!39 = !DILocation(line: 10, column: 1, scope: !17)
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; CHECK: .section .debug_abbrev
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; CHECK-NEXT: {
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; CHECK-NEXT: .b8 1 // Abbreviation Code
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; CHECK-NEXT: .b8 17 // DW_TAG_compile_unit
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; CHECK-NEXT: .b8 1 // DW_CHILDREN_yes
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; CHECK-NEXT: .b8 37 // DW_AT_producer
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; CHECK-NEXT: .b8 8 // DW_FORM_string
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; CHECK-NEXT: .b8 19 // DW_AT_language
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; CHECK-NEXT: .b8 5 // DW_FORM_data2
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; CHECK-NEXT: .b8 3 // DW_AT_name
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; CHECK-NEXT: .b8 8 // DW_FORM_string
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; CHECK-NEXT: .b8 16 // DW_AT_stmt_list
|
||||
; CHECK-NEXT: .b8 6 // DW_FORM_data4
|
||||
; CHECK-NEXT: .b8 27 // DW_AT_comp_dir
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 17 // DW_AT_low_pc
|
||||
; CHECK-NEXT: .b8 1 // DW_FORM_addr
|
||||
; CHECK-NEXT: .b8 18 // DW_AT_high_pc
|
||||
; CHECK-NEXT: .b8 1 // DW_FORM_addr
|
||||
; CHECK-NEXT: .b8 0 // EOM(1)
|
||||
; CHECK-NEXT: .b8 0 // EOM(2)
|
||||
; CHECK-NEXT: .b8 2 // Abbreviation Code
|
||||
; CHECK-NEXT: .b8 52 // DW_TAG_variable
|
||||
; CHECK-NEXT: .b8 0 // DW_CHILDREN_no
|
||||
; CHECK-NEXT: .b8 3 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 73 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 19 // DW_FORM_ref4
|
||||
; CHECK-NEXT: .b8 63 // DW_AT_external
|
||||
; CHECK-NEXT: .b8 12 // DW_FORM_flag
|
||||
; CHECK-NEXT: .b8 58 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 59 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 51 // DW_AT_address_class
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 2 // DW_AT_location
|
||||
; CHECK-NEXT: .b8 10 // DW_FORM_block1
|
||||
; CHECK-NEXT: .b8 0 // EOM(1)
|
||||
; CHECK-NEXT: .b8 0 // EOM(2)
|
||||
; CHECK-NEXT: .b8 3 // Abbreviation Code
|
||||
; CHECK-NEXT: .b8 36 // DW_TAG_base_type
|
||||
; CHECK-NEXT: .b8 0 // DW_CHILDREN_no
|
||||
; CHECK-NEXT: .b8 3 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 62 // DW_AT_encoding
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 11 // DW_AT_byte_size
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 0 // EOM(1)
|
||||
; CHECK-NEXT: .b8 0 // EOM(2)
|
||||
; CHECK-NEXT: .b8 4 // Abbreviation Code
|
||||
; CHECK-NEXT: .b8 46 // DW_TAG_subprogram
|
||||
; CHECK-NEXT: .b8 1 // DW_CHILDREN_yes
|
||||
; CHECK-NEXT: .b8 17 // DW_AT_low_pc
|
||||
; CHECK-NEXT: .b8 1 // DW_FORM_addr
|
||||
; CHECK-NEXT: .b8 18 // DW_AT_high_pc
|
||||
; CHECK-NEXT: .b8 1 // DW_FORM_addr
|
||||
; CHECK-NEXT: .b8 64 // DW_AT_frame_base
|
||||
; CHECK-NEXT: .b8 10 // DW_FORM_block1
|
||||
; CHECK-NEXT: .b8 135,64 // DW_AT_MIPS_linkage_name
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 3 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 58 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 59 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 63 // DW_AT_external
|
||||
; CHECK-NEXT: .b8 12 // DW_FORM_flag
|
||||
; CHECK-NEXT: .b8 0 // EOM(1)
|
||||
; CHECK-NEXT: .b8 0 // EOM(2)
|
||||
; CHECK-NEXT: .b8 5 // Abbreviation Code
|
||||
; CHECK-NEXT: .b8 5 // DW_TAG_formal_parameter
|
||||
; CHECK-NEXT: .b8 0 // DW_CHILDREN_no
|
||||
; CHECK-NEXT: .b8 3 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 8 // DW_FORM_string
|
||||
; CHECK-NEXT: .b8 58 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 59 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 11 // DW_FORM_data1
|
||||
; CHECK-NEXT: .b8 73 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 19 // DW_FORM_ref4
|
||||
; CHECK-NEXT: .b8 0 // EOM(1)
|
||||
; CHECK-NEXT: .b8 0 // EOM(2)
|
||||
; CHECK-NEXT: .b8 0 // EOM(3)
|
||||
; CHECK-NEXT: }
|
||||
; CHECK-NEXT: .section .debug_info
|
||||
; CHECK-NEXT: {
|
||||
; CHECK-NEXT: .b32 217 // Length of Unit
|
||||
; CHECK-NEXT: .b8 2 // DWARF version number
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b32 .debug_abbrev // Offset Into Abbrev. Section
|
||||
; CHECK-NEXT: .b8 8 // Address Size (in bytes)
|
||||
; CHECK-NEXT: .b8 1 // Abbrev [1] 0xb:0xd2 DW_TAG_compile_unit
|
||||
; CHECK-NEXT: .b8 99,108,97,110,103,32,118,101,114,115,105,111,110,32,57,46,48,46,48,32,40,116,114,117,110,107,32,51,53,49,57,54,57,41,32,40,108,108,118,109 // DW_AT_producer
|
||||
; CHECK-NEXT: .b8 47,116,114,117,110,107,32,51,53,49,57,55,51,41
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 4 // DW_AT_language
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 110,101,119,46,99,99 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b32 .debug_line // DW_AT_stmt_list
|
||||
; CHECK-NEXT: .b8 47,116,109,112 // DW_AT_comp_dir
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc
|
||||
; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc
|
||||
; CHECK-NEXT: .b8 2 // Abbrev [2] 0x65:0x1a DW_TAG_variable
|
||||
; CHECK-NEXT: .b8 71,76,79,66,65,76 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b32 127 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_external
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 3 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 5 // DW_AT_address_class
|
||||
; CHECK-NEXT: .b8 9 // DW_AT_location
|
||||
; CHECK-NEXT: .b8 3
|
||||
; CHECK-NEXT: .b64 GLOBAL
|
||||
; CHECK-NEXT: .b8 3 // Abbrev [3] 0x7f:0x7 DW_TAG_base_type
|
||||
; CHECK-NEXT: .b8 105,110,116 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 5 // DW_AT_encoding
|
||||
; CHECK-NEXT: .b8 4 // DW_AT_byte_size
|
||||
; CHECK-NEXT: .b8 2 // Abbrev [2] 0x86:0x1a DW_TAG_variable
|
||||
; CHECK-NEXT: .b8 83,72,65,82,69,68 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b32 127 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_external
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 4 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 8 // DW_AT_address_class
|
||||
; CHECK-NEXT: .b8 9 // DW_AT_location
|
||||
; CHECK-NEXT: .b8 3
|
||||
; CHECK-NEXT: .b64 SHARED
|
||||
; CHECK-NEXT: .b8 4 // Abbrev [4] 0xa0:0x33 DW_TAG_subprogram
|
||||
; CHECK-NEXT: .b64 Lfunc_begin0 // DW_AT_low_pc
|
||||
; CHECK-NEXT: .b64 Lfunc_end0 // DW_AT_high_pc
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_frame_base
|
||||
; CHECK-NEXT: .b8 156
|
||||
; CHECK-NEXT: .b8 116,101,115,116 // DW_AT_MIPS_linkage_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 116,101,115,116 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 6 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_external
|
||||
; CHECK-NEXT: .b8 5 // Abbrev [5] 0xc0:0x9 DW_TAG_formal_parameter
|
||||
; CHECK-NEXT: .b8 97 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 6 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b32 211 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 5 // Abbrev [5] 0xc9:0x9 DW_TAG_formal_parameter
|
||||
; CHECK-NEXT: .b8 105 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 1 // DW_AT_decl_file
|
||||
; CHECK-NEXT: .b8 6 // DW_AT_decl_line
|
||||
; CHECK-NEXT: .b32 127 // DW_AT_type
|
||||
; CHECK-NEXT: .b8 0 // End Of Children Mark
|
||||
; CHECK-NEXT: .b8 3 // Abbrev [3] 0xd3:0x9 DW_TAG_base_type
|
||||
; CHECK-NEXT: .b8 102,108,111,97,116 // DW_AT_name
|
||||
; CHECK-NEXT: .b8 0
|
||||
; CHECK-NEXT: .b8 4 // DW_AT_encoding
|
||||
; CHECK-NEXT: .b8 4 // DW_AT_byte_size
|
||||
; CHECK-NEXT: .b8 0 // End Of Children Mark
|
||||
; CHECK-NEXT: }
|
||||
; CHECK-NEXT: .section .debug_macinfo
|
||||
; CHECK-NEXT: {
|
||||
; CHECK-NEXT: .b8 0 // End Of Macro List Mark
|
||||
; CHECK: }
|
||||
|
||||
Loading…
Reference in New Issue