#define LLVM_CODEGEN_ASMPRINTER_H
#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/Support/DebugLoc.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/IR/InlineAsm.h"
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/ErrorHandling.h"
namespace llvm {
class BlockAddress;
class GCStrategy;
class Constant;
- class ConstantArray;
- class ConstantFP;
- class ConstantInt;
- class ConstantStruct;
- class ConstantVector;
class GCMetadataPrinter;
class GlobalValue;
class GlobalVariable;
class MachineLocation;
class MachineLoopInfo;
class MachineLoop;
- class MachineConstantPool;
- class MachineConstantPoolEntry;
class MachineConstantPoolValue;
class MachineJumpTableInfo;
class MachineModuleInfo;
class MachineMove;
class MCAsmInfo;
- class MCInst;
class MCContext;
class MCSection;
class MCStreamer;
class MCSymbol;
+ class MDNode;
class DwarfDebug;
class DwarfException;
class Mangler;
class TargetLoweringObjectFile;
- class TargetData;
+ class DataLayout;
class TargetMachine;
- class Twine;
- class Type;
/// AsmPrinter - This class is intended to be used as a driving class for all
/// asm writers.
///
MCSymbol *CurrentFnSym;
+ /// The symbol used to represent the start of the current function for the
+ /// purpose of calculating its size (e.g. using the .size directive). By
+ /// default, this is equal to CurrentFnSym.
+ MCSymbol *CurrentFnSymForSize;
+
private:
// GCMetadataPrinters - The garbage collection metadata printer table.
void *GCMetadataPrinters; // Really a DenseMap.
/// getObjFileLowering - Return information about object file lowering.
const TargetLoweringObjectFile &getObjFileLowering() const;
- /// getTargetData - Return information about data layout.
- const TargetData &getTargetData() const;
+ /// getDataLayout - Return information about data layout.
+ const DataLayout &getDataLayout() const;
/// getCurrentSection() - Return the current section we are emitting to.
const MCSection *getCurrentSection() const;
/// function.
void EmitFunctionBody();
+ void emitPrologLabel(const MachineInstr &MI);
+
+ enum CFIMoveType {
+ CFI_M_None,
+ CFI_M_EH,
+ CFI_M_Debug
+ };
+ CFIMoveType needsCFIMoves();
+
+ bool needsSEHMoves();
+
+ /// needsRelocationsForDwarfStringPool - Specifies whether the object format
+ /// expects to use relocations to refer to debug entries. Alternatively we
+ /// emit section offsets in bytes from the start of the string pool.
+ bool needsRelocationsForDwarfStringPool() const;
+
/// EmitConstantPool - Print to the current output stream assembly
/// representations of the constants in the constant pool MCP. This is
/// used to print out constants which have been "spilled to memory" by
/// EmitInstruction - Targets should implement this to emit instructions.
virtual void EmitInstruction(const MachineInstr *) {
- assert(0 && "EmitInstruction not implemented");
+ llvm_unreachable("EmitInstruction not implemented");
}
virtual void EmitFunctionEntryLabel();
virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
+ /// EmitXXStructor - Targets can override this to change how global
+ /// constants that are part of a C++ static/global constructor list are
+ /// emitted.
+ virtual void EmitXXStructor(const Constant *CV) {
+ EmitGlobalConstant(CV);
+ }
+
/// isBlockOnlyReachableByFallthough - Return true if the basic block has
/// exactly one predecessor and the control transfer mechanism between
/// the predecessor and this block is a fall-through.
void EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
unsigned Size) const;
+ /// EmitLabelReference - Emit something like ".long Label"
+ /// where the size in bytes of the directive is specified by Size and Label
+ /// specifies the label.
+ void EmitLabelReference(const MCSymbol *Label, unsigned Size) const {
+ EmitLabelPlusOffset(Label, 0, Size);
+ }
+
//===------------------------------------------------------------------===//
// Dwarf Emission Helper Routines
//===------------------------------------------------------------------===//
/// GetSizeOfEncodedValue - Return the size of the encoding in bytes.
unsigned GetSizeOfEncodedValue(unsigned Encoding) const;
- /// EmitReference - Emit a reference to a label with a specified encoding.
- ///
- void EmitReference(const MCSymbol *Sym, unsigned Encoding) const;
- void EmitReference(const GlobalValue *GV, unsigned Encoding) const;
+ /// EmitReference - Emit reference to a ttype global with a specified encoding.
+ void EmitTTypeReference(const GlobalValue *GV, unsigned Encoding) const;
/// EmitSectionOffset - Emit the 4-byte offset of Label from the start of
/// its section. This can be done with a special directive if the target
/// encoding specified.
virtual unsigned getISAEncoding() { return 0; }
+ /// EmitDwarfRegOp - Emit dwarf register operation.
+ virtual void EmitDwarfRegOp(const MachineLocation &MLoc) const;
+
//===------------------------------------------------------------------===//
// Dwarf Lowering Routines
//===------------------------------------------------------------------===//
- /// EmitFrameMoves - Emit frame instructions to describe the layout of the
+ /// EmitCFIFrameMove - Emit frame instruction to describe the layout of the
/// frame.
- void EmitFrameMoves(const std::vector<MachineMove> &Moves,
- MCSymbol *BaseLabel, bool isEH) const;
-
+ void EmitCFIFrameMove(const MachineMove &Move) const;
//===------------------------------------------------------------------===//
// Inline Asm Support
mutable unsigned SetCounter;
/// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
- void EmitInlineAsm(StringRef Str, unsigned LocCookie) const;
+ void EmitInlineAsm(StringRef Str, const MDNode *LocMDNode = 0,
+ InlineAsm::AsmDialect AsmDialect = InlineAsm::AD_ATT) const;
/// EmitInlineAsm - This method formats and emits the specified machine
/// instruction that is an inline asm.
/// EmitVisibility - This emits visibility information about symbol, if
/// this is suported by the target.
- void EmitVisibility(MCSymbol *Sym, unsigned Visibility) const;
+ void EmitVisibility(MCSymbol *Sym, unsigned Visibility,
+ bool IsDefinition = true) const;
void EmitLinkage(unsigned Linkage, MCSymbol *GVSym) const;
void EmitJumpTableEntry(const MachineJumpTableInfo *MJTI,
const MachineBasicBlock *MBB,
unsigned uid) const;
- void EmitLLVMUsedList(Constant *List);
- void EmitXXStructorList(Constant *List);
+ void EmitLLVMUsedList(const Constant *List);
+ void EmitXXStructorList(const Constant *List, bool isCtor);
GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy *C);
};
}
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