X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FAsmPrinter.h;h=08c3197a7624f00146595c6ff854c03f5d9ae60b;hb=cb3718832375a581c5ea23f15918f3ea447a446c;hp=0ca7cfcbb8ce11e092128011cb4a4b12b901ade6;hpb=189f80dc253664627253b2d2cb07d0714feb12ba;p=oota-llvm.git diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h index 0ca7cfcbb8c..08c3197a762 100644 --- a/include/llvm/CodeGen/AsmPrinter.h +++ b/include/llvm/CodeGen/AsmPrinter.h @@ -2,8 +2,8 @@ // // The LLVM Compiler Infrastructure // -// This file was developed by the LLVM research group and is distributed under -// the University of Illinois Open Source License. See LICENSE.TXT for details. +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // @@ -18,18 +18,23 @@ #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/Support/DataTypes.h" +#include "llvm/ADT/DenseMap.h" #include namespace llvm { + class GCStrategy; class Constant; class ConstantArray; + class GCMetadataPrinter; class GlobalVariable; class GlobalAlias; class MachineConstantPoolEntry; class MachineConstantPoolValue; + class MachineModuleInfo; class Mangler; class TargetAsmInfo; - + class Type; + class raw_ostream; /// AsmPrinter - This class is intended to be used as a driving class for all /// asm writers. @@ -43,6 +48,16 @@ namespace llvm { /// unsigned FunctionNumber; + /// MachineModuleInfo - This is needed because printDeclare() has to insert + /// DebugVariable entries into the dwarf table. This is a short term hack + /// that ought be fixed soon. + MachineModuleInfo *MMI; + + // GCMetadataPrinters - The garbage collection metadata printer table. + typedef DenseMap gcp_map_type; + typedef gcp_map_type::iterator gcp_iterator; + gcp_map_type GCMetadataPrinters; + protected: // Necessary for external weak linkage support std::set ExtWeakSymbols; @@ -50,7 +65,7 @@ namespace llvm { public: /// Output stream on which we're printing assembly code. /// - std::ostream &O; + raw_ostream &O; /// Target machine description. /// @@ -60,6 +75,10 @@ namespace llvm { /// const TargetAsmInfo *TAI; + /// Target Register Information. + /// + const TargetRegisterInfo *TRI; + /// Name-mangler for global names. /// Mangler *Mang; @@ -72,11 +91,17 @@ namespace llvm { /// CurrentSection - The current section we are emitting to. This is /// controlled and used by the SwitchSection method. std::string CurrentSection; + + /// IsInTextSection - True if the current section we are emitting to is a + /// text section. + bool IsInTextSection; protected: - AsmPrinter(std::ostream &o, TargetMachine &TM, const TargetAsmInfo *T); + AsmPrinter(raw_ostream &o, TargetMachine &TM, const TargetAsmInfo *T); public: + virtual ~AsmPrinter(); + /// SwitchToTextSection - Switch to the specified section of the executable /// if we are not already in it! If GV is non-null and if the global has an /// explicitly requested section, we switch to the section indicated for the @@ -118,6 +143,10 @@ namespace llvm { std::string getCurrentFunctionEHName(const MachineFunction *MF); protected: + /// getAnalysisUsage - Record analysis usage. + /// + void getAnalysisUsage(AnalysisUsage &AU) const; + /// doInitialization - Set up the AsmPrinter when we are working on a new /// module. If your pass overrides this, it must make sure to explicitly /// call this implementation. @@ -194,18 +223,10 @@ namespace llvm { /// representing an unsigned leb128 value. void PrintULEB128(unsigned Value) const; - /// SizeULEB128 - Compute the number of bytes required for an unsigned - /// leb128 value. - static unsigned SizeULEB128(unsigned Value); - /// PrintSLEB128 - Print a series of hexidecimal values(separated by commas) /// representing a signed leb128 value. void PrintSLEB128(int Value) const; - /// SizeSLEB128 - Compute the number of bytes required for a signed leb128 - /// value. - static unsigned SizeSLEB128(int Value); - //===------------------------------------------------------------------===// // Emission and print routines // @@ -218,6 +239,7 @@ namespace llvm { /// then it will be printed first. Comments should not contain '\n'. void EOL() const; void EOL(const std::string &Comment) const; + void EOL(const char* Comment) const; /// EmitULEB128Bytes - Emit an assembler byte data directive to compose an /// unsigned leb128 value. @@ -259,9 +281,10 @@ namespace llvm { /// an explicit alignment requested, it will unconditionally override the /// alignment request. However, if ForcedAlignBits is specified, this value /// has final say: the ultimate alignment will be the max of ForcedAlignBits - /// and the alignment computed with NumBits and the global. If UseFillExpr + /// and the alignment computed with NumBits and the global. If UseFillExpr /// is true, it also emits an optional second value FillValue which the - /// assembler uses to fill gaps to match alignment. + /// assembler uses to fill gaps to match alignment for text sections if the + /// has specified a non-zero fill value. /// /// The algorithm is: /// Align = NumBits; @@ -269,8 +292,17 @@ namespace llvm { /// Align = std::max(Align, ForcedAlignBits); /// void EmitAlignment(unsigned NumBits, const GlobalValue *GV = 0, - unsigned ForcedAlignBits = 0, bool UseFillExpr = false, - unsigned FillValue = 0) 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; protected: /// EmitZeros - Emit a block of zeros. @@ -286,7 +318,6 @@ namespace llvm { void EmitConstantValueOnly(const Constant *CV); /// EmitGlobalConstant - Print a general LLVM constant to the .s file. - /// void EmitGlobalConstant(const Constant* CV); virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV); @@ -294,33 +325,49 @@ namespace llvm { /// printInlineAsm - This method formats and prints the specified machine /// instruction that is an inline asm. void printInlineAsm(const MachineInstr *MI) const; - - /// printLabel - This method prints a local label used by debug and - /// exception handling tables. - void printLabel(const MachineInstr *MI) const; + /// printImplicitDef - This method prints the specified machine instruction + /// that is an implicit def. + virtual void printImplicitDef(const MachineInstr *MI) const; + /// printBasicBlockLabel - This method prints the label for the specified /// MachineBasicBlock virtual void printBasicBlockLabel(const MachineBasicBlock *MBB, + bool printAlign = false, bool printColon = false, bool printComment = true) const; - /// printSetLabel - This method prints a set label for the specified - /// MachineBasicBlock - void printSetLabel(unsigned uid, const MachineBasicBlock *MBB) const; - void printSetLabel(unsigned uid, unsigned uid2, - const MachineBasicBlock *MBB) 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; + /// printDataDirective - This method prints the asm directive for the /// specified type. void printDataDirective(const Type *type); + /// printSuffixedName - This prints a name with preceding + /// getPrivateGlobalPrefix and the specified suffix, handling quoted names + /// correctly. + void printSuffixedName(const char *Name, const char *Suffix, + const char *Prefix = 0); + void printSuffixedName(const std::string &Name, const char* Suffix); + + /// printVisibility - This prints visibility information about symbol, if + /// this is suported by the target. + void printVisibility(const std::string& Name, unsigned Visibility) const; + private: void EmitLLVMUsedList(Constant *List); void EmitXXStructorList(Constant *List); void EmitConstantPool(unsigned Alignment, const char *Section, std::vector > &CP); - + GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy *C); }; }