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Document, cleanup, and clang-format DwarfExpression.h

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225847 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl
2015-01-13 23:11:07 +00:00
parent 78415546e9
commit 82df5a6981
1 changed files with 14 additions and 12 deletions
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26
lib/CodeGen/AsmPrinter/DwarfExpression.h
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@@ -36,14 +36,18 @@ public:
DwarfExpression(const AsmPrinter &AP) : AP(AP) {} DwarfExpression(const AsmPrinter &AP) : AP(AP) {}
virtual ~DwarfExpression() {} virtual ~DwarfExpression() {}
virtual void EmitOp(uint8_t Op, const char* Comment = nullptr) = 0; /// Output a dwarf operand and an optional assembler comment.
virtual void EmitOp(uint8_t Op, const char *Comment = nullptr) = 0;
/// Emit a raw signed value.
virtual void EmitSigned(int Value) = 0; virtual void EmitSigned(int Value) = 0;
/// Emit a raw unsigned value.
virtual void EmitUnsigned(unsigned Value) = 0; virtual void EmitUnsigned(unsigned Value) = 0;
/// Return whether the given machine register is the frame register in the
/// current function.
virtual bool isFrameRegister(unsigned MachineReg) = 0; virtual bool isFrameRegister(unsigned MachineReg) = 0;
/// Emit a dwarf register operation. /// Emit a dwarf register operation.
void AddReg(int DwarfReg, const char* Comment = nullptr); void AddReg(int DwarfReg, const char *Comment = nullptr);
/// Emit an (double-)indirect dwarf register operation. /// Emit an (double-)indirect dwarf register operation.
void AddRegIndirect(int DwarfReg, int Offset, bool Deref = false); void AddRegIndirect(int DwarfReg, int Offset, bool Deref = false);
@@ -56,13 +60,13 @@ public:
/// Emit an indirect dwarf register operation for the given machine register. /// Emit an indirect dwarf register operation for the given machine register.
/// Returns false if no DWARF register exists for MachineReg. /// Returns false if no DWARF register exists for MachineReg.
bool AddMachineRegIndirect(unsigned MachineReg, int Offset); bool AddMachineRegIndirect(unsigned MachineReg, int Offset = 0);
/// \brief Emit a partial DWARF register operation. /// \brief Emit a partial DWARF register operation.
/// \param MLoc the register /// \param MachineReg the register
/// \param PieceSize size and /// \param PieceSizeInBits size and
/// \param PieceOffset offset of the piece in bits, if this is one /// \param PieceOffsetInBits offset of the piece in bits, if this is one
/// piece of an aggregate value. /// piece of an aggregate value.
/// ///
/// If size and offset is zero an operation for the entire /// If size and offset is zero an operation for the entire
/// register is emitted: Some targets do not provide a DWARF /// register is emitted: Some targets do not provide a DWARF
@@ -70,8 +74,7 @@ public:
/// function will attempt to emit a DWARF register by emitting a /// function will attempt to emit a DWARF register by emitting a
/// piece of a super-register or by piecing together multiple /// piece of a super-register or by piecing together multiple
/// subregisters that alias the register. /// subregisters that alias the register.
void AddMachineRegPiece(unsigned MachineReg, void AddMachineRegPiece(unsigned MachineReg, unsigned PieceSizeInBits = 0,
unsigned PieceSizeInBits = 0,
unsigned PieceOffsetInBits = 0); unsigned PieceOffsetInBits = 0);
/// Emit a signed constant. /// Emit a signed constant.
@@ -89,12 +92,11 @@ public:
DebugLocDwarfExpression(const AsmPrinter &AP, ByteStreamer &BS) DebugLocDwarfExpression(const AsmPrinter &AP, ByteStreamer &BS)
: DwarfExpression(AP), BS(BS) {} : DwarfExpression(AP), BS(BS) {}
void EmitOp(uint8_t Op, const char *Comment) override; void EmitOp(uint8_t Op, const char *Comment = nullptr) override;
void EmitSigned(int Value) override; void EmitSigned(int Value) override;
void EmitUnsigned(unsigned Value) override; void EmitUnsigned(unsigned Value) override;
bool isFrameRegister(unsigned MachineReg) override; bool isFrameRegister(unsigned MachineReg) override;
}; };
} }
#endif #endif