#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/Support/DebugLoc.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/ADT/DenseMap.h"
namespace llvm {
class BlockAddress;
class AsmPrinter : public MachineFunctionPass {
static char ID;
- /// FunctionNumber - This provides a unique ID for each function emitted in
- /// this translation unit. It is autoincremented by SetupMachineFunction,
- /// and can be accessed with getFunctionNumber() and
- /// IncrementFunctionNumber().
- ///
- unsigned FunctionNumber;
-
// GCMetadataPrinters - The garbage collection metadata printer table.
typedef DenseMap<GCStrategy*,GCMetadataPrinter*> gcp_map_type;
typedef gcp_map_type::iterator gcp_iterator;
DwarfWriter *DW;
public:
- /// Flags to specify different kinds of comments to output in
- /// assembly code. These flags carry semantic information not
- /// otherwise easily derivable from the IR text.
- ///
- enum CommentFlag {
- ReloadReuse = 0x1
- };
/// Output stream on which we're printing assembly code.
///
mutable const MachineInstr *LastMI;
mutable const Function *LastFn;
mutable unsigned Counter;
+ mutable unsigned SetCounter;
// Private state for processDebugLoc()
mutable const MDNode *PrevDLT;
protected:
explicit AsmPrinter(formatted_raw_ostream &o, TargetMachine &TM,
- const MCAsmInfo *T, bool V);
+ MCStreamer &Streamer);
public:
virtual ~AsmPrinter();
/// getFunctionNumber - Return a unique ID for the current function.
///
- unsigned getFunctionNumber() const { return FunctionNumber; }
+ unsigned getFunctionNumber() const;
protected:
/// getAnalysisUsage - Record analysis usage.
unsigned AsmVariant,
const char *ExtraCode);
+ /// runOnMachineFunction - Emit the specified function out to the
+ /// OutStreamer.
+ virtual bool runOnMachineFunction(MachineFunction &MF) {
+ SetupMachineFunction(MF);
+ EmitFunctionHeader();
+ EmitFunctionBody();
+ return false;
+ }
+
/// SetupMachineFunction - This should be called when a new MachineFunction
/// is being processed from runOnMachineFunction.
void SetupMachineFunction(MachineFunction &MF);
- /// IncrementFunctionNumber - Increase Function Number. AsmPrinters should
- /// not normally call this, as the counter is automatically bumped by
- /// SetupMachineFunction.
- void IncrementFunctionNumber() { FunctionNumber++; }
+ /// EmitFunctionHeader - This method emits the header for the current
+ /// function.
+ void EmitFunctionHeader();
+
+ /// EmitFunctionBody - This method emits the body and trailer for a
+ /// function.
+ void EmitFunctionBody();
+
+ /// EmitInstruction - Targets should implement this to emit instructions.
+ virtual void EmitInstruction(const MachineInstr *) {
+ assert(0 && "EmitInstruction not implemented");
+ }
+
+ /// EmitFunctionBodyStart - Targets can override this to emit stuff before
+ /// the first basic block in the function.
+ virtual void EmitFunctionBodyStart() {}
+
+ /// EmitFunctionBodyEnd - Targets can override this to emit stuff after
+ /// the last basic block in the function.
+ virtual void EmitFunctionBodyEnd() {}
/// 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
/// the code generator.
///
- void EmitConstantPool(MachineConstantPool *MCP);
-
+ virtual void EmitConstantPool();
+
/// EmitJumpTableInfo - Print assembly representations of the jump tables
/// used by the current function to the current output stream.
///
- void EmitJumpTableInfo(MachineJumpTableInfo *MJTI, MachineFunction &MF);
+ void EmitJumpTableInfo();
/// EmitGlobalVariable - Emit the specified global variable to the .s file.
virtual void EmitGlobalVariable(const GlobalVariable *GV);
// Emission and print routines
//
- /// EOL - Print a newline character to asm stream. If a comment is present
- /// then it will be printed first. Comments should not contain '\n'.
- void EOL(const Twine &Comment) const;
-
/// EmitInt8 - Emit a byte directive and value.
///
void EmitInt8(int Value) const;
/// EmitInt64 - Emit a long long directive and value.
///
void EmitInt64(uint64_t Value) const;
-
- /// EmitString - Emit a string with quotes and a null terminator.
- /// Special characters are emitted properly.
- /// @verbatim (Eg. '\t') @endverbatim
- void EmitString(const StringRef String) const;
- void EmitString(const char *String, unsigned Size) const;
-
- /// EmitFile - Emit a .file directive.
- void EmitFile(unsigned Number, StringRef Name) const;
+
+
+ /// EmitLabelDifference - Emit something like ".long Hi-Lo" where the size
+ /// in bytes of the directive is specified by Size and Hi/Lo specify the
+ /// labels. This implicitly uses .set if it is available.
+ void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
+ unsigned Size) const;
//===------------------------------------------------------------------===//
unsigned ForcedAlignBits = 0,
bool UseFillExpr = true) const;
- /// printLabel - This method prints a local label used by debug and
- /// exception handling tables.
- void printLabel(const MachineInstr *MI) const;
- void printLabel(unsigned Id) const;
-
/// printDeclare - This method prints a local variable declaration used by
/// debug tables.
void printDeclare(const MachineInstr *MI) const;
- /// EmitComments - Pretty-print comments for instructions
- void EmitComments(const MachineInstr &MI) const;
-
- /// GetGlobalValueSymbol - Return the MCSymbol for the specified global
- /// value.
- MCSymbol *GetGlobalValueSymbol(const GlobalValue *GV) const;
-
/// GetSymbolWithGlobalValueBase - Return the MCSymbol for a symbol with
/// global value name as its base, with the specified suffix, and where the
/// symbol is forced to have private linkage if ForcePrivate is true.
/// ExternalSymbol.
MCSymbol *GetExternalSymbolSymbol(StringRef Sym) const;
- /// GetMBBSymbol - Return the MCSymbol corresponding to the specified basic
- /// block label.
- MCSymbol *GetMBBSymbol(unsigned MBBID) const;
-
+ /// GetCPISymbol - Return the symbol for the specified constant pool entry.
+ MCSymbol *GetCPISymbol(unsigned CPID) const;
+
+ /// GetJTISymbol - Return the symbol for the specified jump table entry.
+ MCSymbol *GetJTISymbol(unsigned JTID, bool isLinkerPrivate = false) const;
+
+ /// GetJTSetSymbol - Return the symbol for the specified jump table .set
+ /// FIXME: privatize to AsmPrinter.
+ MCSymbol *GetJTSetSymbol(unsigned UID, unsigned MBBID) const;
+
/// GetBlockAddressSymbol - Return the MCSymbol used to satisfy BlockAddress
/// uses of the specified basic block.
- MCSymbol *GetBlockAddressSymbol(const BlockAddress *BA,
- const char *Suffix = "") const;
- MCSymbol *GetBlockAddressSymbol(const Function *F,
- const BasicBlock *BB,
- const char *Suffix = "") const;
+ MCSymbol *GetBlockAddressSymbol(const BlockAddress *BA) const;
+ MCSymbol *GetBlockAddressSymbol(const BasicBlock *BB) const;
/// EmitBasicBlockStart - This method prints the label for the specified
/// MachineBasicBlock, an alignment (if present) and a comment describing
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
void EmitGlobalConstant(const Constant* CV, unsigned AddrSpace = 0);
- /// EmitString - Emit a zero-byte-terminated string constant.
- ///
- virtual void EmitString(const ConstantArray *CVA) const;
-
protected:
- /// EmitConstantValueOnly - Print out the specified constant, without a
- /// storage class. Only constants of first-class type are allowed here.
- void EmitConstantValueOnly(const Constant *CV);
-
+ virtual void EmitFunctionEntryLabel();
+
virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
+ /// printOffset - This is just convenient handler for printing offsets.
+ void printOffset(int64_t Offset) const;
+
+ /// 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.
+ virtual bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const;
+
+ private:
+
/// processDebugLoc - Processes the debug information of each machine
/// instruction's DebugLoc.
void processDebugLoc(const MachineInstr *MI, bool BeforePrintingInsn);
+ void printLabelInst(const MachineInstr *MI) const;
+
/// printInlineAsm - This method formats and prints the specified machine
/// instruction that is an inline asm.
void printInlineAsm(const MachineInstr *MI) const;
/// printKill - This method prints the specified kill machine instruction.
void printKill(const MachineInstr *MI) const;
- /// printPICJumpTableSetLabel - This method prints a set label for the
- /// specified MachineBasicBlock for a jumptable entry.
- virtual void printPICJumpTableSetLabel(unsigned uid,
- const MachineBasicBlock *MBB) const;
- virtual void printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
- const MachineBasicBlock *MBB) const;
- virtual void printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
- const MachineBasicBlock *MBB,
- unsigned uid) const;
-
- /// printVisibility - This prints visibility information about symbol, if
+ /// EmitVisibility - This emits visibility information about symbol, if
/// this is suported by the target.
- void printVisibility(const MCSymbol *Sym, unsigned Visibility) const;
+ void EmitVisibility(MCSymbol *Sym, unsigned Visibility) const;
- /// printOffset - This is just convenient handler for printing offsets.
- void printOffset(int64_t Offset) const;
-
- private:
+ 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);
GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy *C);
projects / oota-llvm.git / blobdiff