+++ /dev/null
-//===-- llvm/CodeGen/MachineCodeEmitter.h - Code emission -------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines an abstract interface that is used by the machine code
-// emission framework to output the code. This allows machine code emission to
-// be separated from concerns such as resolution of call targets, and where the
-// machine code will be written (memory or disk, f.e.).
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_MACHINECODEEMITTER_H
-#define LLVM_CODEGEN_MACHINECODEEMITTER_H
-
-#include "llvm/IR/DebugLoc.h"
-#include "llvm/Support/DataTypes.h"
-#include <string>
-
-namespace llvm {
-
-class MachineBasicBlock;
-class MachineConstantPool;
-class MachineJumpTableInfo;
-class MachineFunction;
-class MachineModuleInfo;
-class MachineRelocation;
-class Value;
-class GlobalValue;
-class Function;
-class MCSymbol;
-
-/// MachineCodeEmitter - This class defines two sorts of methods: those for
-/// emitting the actual bytes of machine code, and those for emitting auxiliary
-/// structures, such as jump tables, relocations, etc.
-///
-/// Emission of machine code is complicated by the fact that we don't (in
-/// general) know the size of the machine code that we're about to emit before
-/// we emit it. As such, we preallocate a certain amount of memory, and set the
-/// BufferBegin/BufferEnd pointers to the start and end of the buffer. As we
-/// emit machine instructions, we advance the CurBufferPtr to indicate the
-/// location of the next byte to emit. In the case of a buffer overflow (we
-/// need to emit more machine code than we have allocated space for), the
-/// CurBufferPtr will saturate to BufferEnd and ignore stores. Once the entire
-/// function has been emitted, the overflow condition is checked, and if it has
-/// occurred, more memory is allocated, and we reemit the code into it.
-///
-class MachineCodeEmitter {
- virtual void anchor();
-protected:
- /// BufferBegin/BufferEnd - Pointers to the start and end of the memory
- /// allocated for this code buffer.
- uint8_t *BufferBegin, *BufferEnd;
- /// CurBufferPtr - Pointer to the next byte of memory to fill when emitting
- /// code. This is guaranteed to be in the range [BufferBegin,BufferEnd]. If
- /// this pointer is at BufferEnd, it will never move due to code emission, and
- /// all code emission requests will be ignored (this is the buffer overflow
- /// condition).
- uint8_t *CurBufferPtr;
-
-public:
- virtual ~MachineCodeEmitter() {}
-
- /// startFunction - This callback is invoked when the specified function is
- /// about to be code generated. This initializes the BufferBegin/End/Ptr
- /// fields.
- ///
- virtual void startFunction(MachineFunction &F) = 0;
-
- /// finishFunction - This callback is invoked when the specified function has
- /// finished code generation. If a buffer overflow has occurred, this method
- /// returns true (the callee is required to try again), otherwise it returns
- /// false.
- ///
- virtual bool finishFunction(MachineFunction &F) = 0;
-
- /// emitByte - This callback is invoked when a byte needs to be written to the
- /// output stream.
- ///
- void emitByte(uint8_t B) {
- if (CurBufferPtr != BufferEnd)
- *CurBufferPtr++ = B;
- }
-
- /// emitWordLE - This callback is invoked when a 32-bit word needs to be
- /// written to the output stream in little-endian format.
- ///
- void emitWordLE(uint32_t W) {
- if (4 <= BufferEnd-CurBufferPtr) {
- emitWordLEInto(CurBufferPtr, W);
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitWordLEInto - This callback is invoked when a 32-bit word needs to be
- /// written to an arbitrary buffer in little-endian format. Buf must have at
- /// least 4 bytes of available space.
- ///
- static void emitWordLEInto(uint8_t *&Buf, uint32_t W) {
- *Buf++ = (uint8_t)(W >> 0);
- *Buf++ = (uint8_t)(W >> 8);
- *Buf++ = (uint8_t)(W >> 16);
- *Buf++ = (uint8_t)(W >> 24);
- }
-
- /// emitWordBE - This callback is invoked when a 32-bit word needs to be
- /// written to the output stream in big-endian format.
- ///
- void emitWordBE(uint32_t W) {
- if (4 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (uint8_t)(W >> 24);
- *CurBufferPtr++ = (uint8_t)(W >> 16);
- *CurBufferPtr++ = (uint8_t)(W >> 8);
- *CurBufferPtr++ = (uint8_t)(W >> 0);
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitDWordLE - This callback is invoked when a 64-bit word needs to be
- /// written to the output stream in little-endian format.
- ///
- void emitDWordLE(uint64_t W) {
- if (8 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (uint8_t)(W >> 0);
- *CurBufferPtr++ = (uint8_t)(W >> 8);
- *CurBufferPtr++ = (uint8_t)(W >> 16);
- *CurBufferPtr++ = (uint8_t)(W >> 24);
- *CurBufferPtr++ = (uint8_t)(W >> 32);
- *CurBufferPtr++ = (uint8_t)(W >> 40);
- *CurBufferPtr++ = (uint8_t)(W >> 48);
- *CurBufferPtr++ = (uint8_t)(W >> 56);
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitDWordBE - This callback is invoked when a 64-bit word needs to be
- /// written to the output stream in big-endian format.
- ///
- void emitDWordBE(uint64_t W) {
- if (8 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (uint8_t)(W >> 56);
- *CurBufferPtr++ = (uint8_t)(W >> 48);
- *CurBufferPtr++ = (uint8_t)(W >> 40);
- *CurBufferPtr++ = (uint8_t)(W >> 32);
- *CurBufferPtr++ = (uint8_t)(W >> 24);
- *CurBufferPtr++ = (uint8_t)(W >> 16);
- *CurBufferPtr++ = (uint8_t)(W >> 8);
- *CurBufferPtr++ = (uint8_t)(W >> 0);
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitAlignment - Move the CurBufferPtr pointer up to the specified
- /// alignment (saturated to BufferEnd of course).
- void emitAlignment(unsigned Alignment) {
- if (Alignment == 0) Alignment = 1;
-
- if(Alignment <= (uintptr_t)(BufferEnd-CurBufferPtr)) {
- // Move the current buffer ptr up to the specified alignment.
- CurBufferPtr =
- (uint8_t*)(((uintptr_t)CurBufferPtr+Alignment-1) &
- ~(uintptr_t)(Alignment-1));
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
-
- /// emitULEB128Bytes - This callback is invoked when a ULEB128 needs to be
- /// written to the output stream.
- void emitULEB128Bytes(uint64_t Value) {
- do {
- uint8_t Byte = Value & 0x7f;
- Value >>= 7;
- if (Value) Byte |= 0x80;
- emitByte(Byte);
- } while (Value);
- }
-
- /// emitSLEB128Bytes - This callback is invoked when a SLEB128 needs to be
- /// written to the output stream.
- void emitSLEB128Bytes(uint64_t Value) {
- uint64_t Sign = Value >> (8 * sizeof(Value) - 1);
- bool IsMore;
-
- do {
- uint8_t Byte = Value & 0x7f;
- Value >>= 7;
- IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
- if (IsMore) Byte |= 0x80;
- emitByte(Byte);
- } while (IsMore);
- }
-
- /// emitString - This callback is invoked when a String needs to be
- /// written to the output stream.
- void emitString(const std::string &String) {
- for (unsigned i = 0, N = static_cast<unsigned>(String.size());
- i < N; ++i) {
- uint8_t C = String[i];
- emitByte(C);
- }
- emitByte(0);
- }
-
- /// emitInt32 - Emit a int32 directive.
- void emitInt32(int32_t Value) {
- if (4 <= BufferEnd-CurBufferPtr) {
- *((uint32_t*)CurBufferPtr) = Value;
- CurBufferPtr += 4;
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitInt64 - Emit a int64 directive.
- void emitInt64(uint64_t Value) {
- if (8 <= BufferEnd-CurBufferPtr) {
- *((uint64_t*)CurBufferPtr) = Value;
- CurBufferPtr += 8;
- } else {
- CurBufferPtr = BufferEnd;
- }
- }
-
- /// emitInt32At - Emit the Int32 Value in Addr.
- void emitInt32At(uintptr_t *Addr, uintptr_t Value) {
- if (Addr >= (uintptr_t*)BufferBegin && Addr < (uintptr_t*)BufferEnd)
- (*(uint32_t*)Addr) = (uint32_t)Value;
- }
-
- /// emitInt64At - Emit the Int64 Value in Addr.
- void emitInt64At(uintptr_t *Addr, uintptr_t Value) {
- if (Addr >= (uintptr_t*)BufferBegin && Addr < (uintptr_t*)BufferEnd)
- (*(uint64_t*)Addr) = (uint64_t)Value;
- }
-
- /// processDebugLoc - Records debug location information about a
- /// MachineInstruction. This is called before emitting any bytes associated
- /// with the instruction. Even if successive instructions have the same debug
- /// location, this method will be called for each one.
- virtual void processDebugLoc(DebugLoc DL, bool BeforePrintintInsn) {}
-
- /// emitLabel - Emits a label
- virtual void emitLabel(MCSymbol *Label) = 0;
-
- /// allocateSpace - Allocate a block of space in the current output buffer,
- /// returning null (and setting conditions to indicate buffer overflow) on
- /// failure. Alignment is the alignment in bytes of the buffer desired.
- virtual void *allocateSpace(uintptr_t Size, unsigned Alignment) {
- emitAlignment(Alignment);
- void *Result;
-
- // Check for buffer overflow.
- if (Size >= (uintptr_t)(BufferEnd-CurBufferPtr)) {
- CurBufferPtr = BufferEnd;
- Result = nullptr;
- } else {
- // Allocate the space.
- Result = CurBufferPtr;
- CurBufferPtr += Size;
- }
-
- return Result;
- }
-
- /// StartMachineBasicBlock - This should be called by the target when a new
- /// basic block is about to be emitted. This way the MCE knows where the
- /// start of the block is, and can implement getMachineBasicBlockAddress.
- virtual void StartMachineBasicBlock(MachineBasicBlock *MBB) = 0;
-
- /// getCurrentPCValue - This returns the address that the next emitted byte
- /// will be output to.
- ///
- virtual uintptr_t getCurrentPCValue() const {
- return (uintptr_t)CurBufferPtr;
- }
-
- /// getCurrentPCOffset - Return the offset from the start of the emitted
- /// buffer that we are currently writing to.
- virtual uintptr_t getCurrentPCOffset() const {
- return CurBufferPtr-BufferBegin;
- }
-
- /// earlyResolveAddresses - True if the code emitter can use symbol addresses
- /// during code emission time. The JIT is capable of doing this because it
- /// creates jump tables or constant pools in memory on the fly while the
- /// object code emitters rely on a linker to have real addresses and should
- /// use relocations instead.
- virtual bool earlyResolveAddresses() const = 0;
-
- /// addRelocation - Whenever a relocatable address is needed, it should be
- /// noted with this interface.
- virtual void addRelocation(const MachineRelocation &MR) = 0;
-
- /// FIXME: These should all be handled with relocations!
-
- /// getConstantPoolEntryAddress - Return the address of the 'Index' entry in
- /// the constant pool that was last emitted with the emitConstantPool method.
- ///
- virtual uintptr_t getConstantPoolEntryAddress(unsigned Index) const = 0;
-
- /// getJumpTableEntryAddress - Return the address of the jump table with index
- /// 'Index' in the function that last called initJumpTableInfo.
- ///
- virtual uintptr_t getJumpTableEntryAddress(unsigned Index) const = 0;
-
- /// getMachineBasicBlockAddress - Return the address of the specified
- /// MachineBasicBlock, only usable after the label for the MBB has been
- /// emitted.
- ///
- virtual uintptr_t getMachineBasicBlockAddress(MachineBasicBlock *MBB) const= 0;
-
- /// getLabelAddress - Return the address of the specified Label, only usable
- /// after the LabelID has been emitted.
- ///
- virtual uintptr_t getLabelAddress(MCSymbol *Label) const = 0;
-
- /// Specifies the MachineModuleInfo object. This is used for exception handling
- /// purposes.
- virtual void setModuleInfo(MachineModuleInfo* Info) = 0;
-};
-
-} // End llvm namespace
-
-#endif
+++ /dev/null
-//===-- llvm/CodeGen/MachineRelocation.h - Target Relocation ----*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the MachineRelocation class.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_MACHINERELOCATION_H
-#define LLVM_CODEGEN_MACHINERELOCATION_H
-
-#include "llvm/Support/DataTypes.h"
-#include <cassert>
-
-namespace llvm {
-class GlobalValue;
-class MachineBasicBlock;
-
-/// MachineRelocation - This represents a target-specific relocation value,
-/// produced by the code emitter. This relocation is resolved after the has
-/// been emitted, either to an object file or to memory, when the target of the
-/// relocation can be resolved.
-///
-/// A relocation is made up of the following logical portions:
-/// 1. An offset in the machine code buffer, the location to modify.
-/// 2. A target specific relocation type (a number from 0 to 63).
-/// 3. A symbol being referenced, either as a GlobalValue* or as a string.
-/// 4. An optional constant value to be added to the reference.
-/// 5. A bit, CanRewrite, which indicates to the JIT that a function stub is
-/// not needed for the relocation.
-/// 6. An index into the GOT, if the target uses a GOT
-///
-class MachineRelocation {
- enum AddressType {
- isResult, // Relocation has be transformed into its result pointer.
- isGV, // The Target.GV field is valid.
- isIndirectSym, // Relocation of an indirect symbol.
- isBB, // Relocation of BB address.
- isExtSym, // The Target.ExtSym field is valid.
- isConstPool, // Relocation of constant pool address.
- isJumpTable, // Relocation of jump table address.
- isGOTIndex // The Target.GOTIndex field is valid.
- };
-
- /// Offset - This is the offset from the start of the code buffer of the
- /// relocation to perform.
- uintptr_t Offset;
-
- /// ConstantVal - A field that may be used by the target relocation type.
- intptr_t ConstantVal;
-
- union {
- void *Result; // If this has been resolved to a resolved pointer
- GlobalValue *GV; // If this is a pointer to a GV or an indirect ref.
- MachineBasicBlock *MBB; // If this is a pointer to an LLVM BB
- const char *ExtSym; // If this is a pointer to a named symbol
- unsigned Index; // Constant pool / jump table index
- unsigned GOTIndex; // Index in the GOT of this symbol/global
- } Target;
-
- unsigned TargetReloType : 6; // The target relocation ID
- AddressType AddrType : 4; // The field of Target to use
- bool MayNeedFarStub : 1; // True if this relocation may require a far-stub
- bool GOTRelative : 1; // Should this relocation be relative to the GOT?
- bool TargetResolve : 1; // True if target should resolve the address
-
-public:
- // Relocation types used in a generic implementation. Currently, relocation
- // entries for all things use the generic VANILLA type until they are refined
- // into target relocation types.
- enum RelocationType {
- VANILLA
- };
-
- /// MachineRelocation::getGV - Return a relocation entry for a GlobalValue.
- ///
- static MachineRelocation getGV(uintptr_t offset, unsigned RelocationType,
- GlobalValue *GV, intptr_t cst = 0,
- bool MayNeedFarStub = 0,
- bool GOTrelative = 0) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isGV;
- Result.MayNeedFarStub = MayNeedFarStub;
- Result.GOTRelative = GOTrelative;
- Result.TargetResolve = false;
- Result.Target.GV = GV;
- return Result;
- }
-
- /// MachineRelocation::getIndirectSymbol - Return a relocation entry for an
- /// indirect symbol.
- static MachineRelocation getIndirectSymbol(uintptr_t offset,
- unsigned RelocationType,
- GlobalValue *GV, intptr_t cst = 0,
- bool MayNeedFarStub = 0,
- bool GOTrelative = 0) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isIndirectSym;
- Result.MayNeedFarStub = MayNeedFarStub;
- Result.GOTRelative = GOTrelative;
- Result.TargetResolve = false;
- Result.Target.GV = GV;
- return Result;
- }
-
- /// MachineRelocation::getBB - Return a relocation entry for a BB.
- ///
- static MachineRelocation getBB(uintptr_t offset,unsigned RelocationType,
- MachineBasicBlock *MBB, intptr_t cst = 0) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isBB;
- Result.MayNeedFarStub = false;
- Result.GOTRelative = false;
- Result.TargetResolve = false;
- Result.Target.MBB = MBB;
- return Result;
- }
-
- /// MachineRelocation::getExtSym - Return a relocation entry for an external
- /// symbol, like "free".
- ///
- static MachineRelocation getExtSym(uintptr_t offset, unsigned RelocationType,
- const char *ES, intptr_t cst = 0,
- bool GOTrelative = 0,
- bool NeedStub = true) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isExtSym;
- Result.MayNeedFarStub = NeedStub;
- Result.GOTRelative = GOTrelative;
- Result.TargetResolve = false;
- Result.Target.ExtSym = ES;
- return Result;
- }
-
- /// MachineRelocation::getConstPool - Return a relocation entry for a constant
- /// pool entry.
- ///
- static MachineRelocation getConstPool(uintptr_t offset,unsigned RelocationType,
- unsigned CPI, intptr_t cst = 0,
- bool letTargetResolve = false) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isConstPool;
- Result.MayNeedFarStub = false;
- Result.GOTRelative = false;
- Result.TargetResolve = letTargetResolve;
- Result.Target.Index = CPI;
- return Result;
- }
-
- /// MachineRelocation::getJumpTable - Return a relocation entry for a jump
- /// table entry.
- ///
- static MachineRelocation getJumpTable(uintptr_t offset,unsigned RelocationType,
- unsigned JTI, intptr_t cst = 0,
- bool letTargetResolve = false) {
- assert((RelocationType & ~63) == 0 && "Relocation type too large!");
- MachineRelocation Result;
- Result.Offset = offset;
- Result.ConstantVal = cst;
- Result.TargetReloType = RelocationType;
- Result.AddrType = isJumpTable;
- Result.MayNeedFarStub = false;
- Result.GOTRelative = false;
- Result.TargetResolve = letTargetResolve;
- Result.Target.Index = JTI;
- return Result;
- }
-
- /// getMachineCodeOffset - Return the offset into the code buffer that the
- /// relocation should be performed.
- intptr_t getMachineCodeOffset() const {
- return Offset;
- }
-
- /// getRelocationType - Return the target-specific relocation ID for this
- /// relocation.
- unsigned getRelocationType() const {
- return TargetReloType;
- }
-
- /// getConstantVal - Get the constant value associated with this relocation.
- /// This is often an offset from the symbol.
- ///
- intptr_t getConstantVal() const {
- return ConstantVal;
- }
-
- /// setConstantVal - Set the constant value associated with this relocation.
- /// This is often an offset from the symbol.
- ///
- void setConstantVal(intptr_t val) {
- ConstantVal = val;
- }
-
- /// isGlobalValue - Return true if this relocation is a GlobalValue, as
- /// opposed to a constant string.
- bool isGlobalValue() const {
- return AddrType == isGV;
- }
-
- /// isIndirectSymbol - Return true if this relocation is the address an
- /// indirect symbol
- bool isIndirectSymbol() const {
- return AddrType == isIndirectSym;
- }
-
- /// isBasicBlock - Return true if this relocation is a basic block reference.
- ///
- bool isBasicBlock() const {
- return AddrType == isBB;
- }
-
- /// isExternalSymbol - Return true if this is a constant string.
- ///
- bool isExternalSymbol() const {
- return AddrType == isExtSym;
- }
-
- /// isConstantPoolIndex - Return true if this is a constant pool reference.
- ///
- bool isConstantPoolIndex() const {
- return AddrType == isConstPool;
- }
-
- /// isJumpTableIndex - Return true if this is a jump table reference.
- ///
- bool isJumpTableIndex() const {
- return AddrType == isJumpTable;
- }
-
- /// isGOTRelative - Return true the target wants the index into the GOT of
- /// the symbol rather than the address of the symbol.
- bool isGOTRelative() const {
- return GOTRelative;
- }
-
- /// mayNeedFarStub - This function returns true if the JIT for this target may
- /// need either a stub function or an indirect global-variable load to handle
- /// the relocated GlobalValue reference. For example, the x86-64 call
- /// instruction can only call functions within +/-2GB of the call site.
- /// Anything farther away needs a longer mov+call sequence, which can't just
- /// be written on top of the existing call.
- bool mayNeedFarStub() const {
- return MayNeedFarStub;
- }
-
- /// letTargetResolve - Return true if the target JITInfo is usually
- /// responsible for resolving the address of this relocation.
- bool letTargetResolve() const {
- return TargetResolve;
- }
-
- /// getGlobalValue - If this is a global value reference, return the
- /// referenced global.
- GlobalValue *getGlobalValue() const {
- assert((isGlobalValue() || isIndirectSymbol()) &&
- "This is not a global value reference!");
- return Target.GV;
- }
-
- MachineBasicBlock *getBasicBlock() const {
- assert(isBasicBlock() && "This is not a basic block reference!");
- return Target.MBB;
- }
-
- /// getString - If this is a string value, return the string reference.
- ///
- const char *getExternalSymbol() const {
- assert(isExternalSymbol() && "This is not an external symbol reference!");
- return Target.ExtSym;
- }
-
- /// getConstantPoolIndex - If this is a const pool reference, return
- /// the index into the constant pool.
- unsigned getConstantPoolIndex() const {
- assert(isConstantPoolIndex() && "This is not a constant pool reference!");
- return Target.Index;
- }
-
- /// getJumpTableIndex - If this is a jump table reference, return
- /// the index into the jump table.
- unsigned getJumpTableIndex() const {
- assert(isJumpTableIndex() && "This is not a jump table reference!");
- return Target.Index;
- }
-
- /// getResultPointer - Once this has been resolved to point to an actual
- /// address, this returns the pointer.
- void *getResultPointer() const {
- assert(AddrType == isResult && "Result pointer isn't set yet!");
- return Target.Result;
- }
-
- /// setResultPointer - Set the result to the specified pointer value.
- ///
- void setResultPointer(void *Ptr) {
- Target.Result = Ptr;
- AddrType = isResult;
- }
-
- /// setGOTIndex - Set the GOT index to a specific value.
- void setGOTIndex(unsigned idx) {
- AddrType = isGOTIndex;
- Target.GOTIndex = idx;
- }
-
- /// getGOTIndex - Once this has been resolved to an entry in the GOT,
- /// this returns that index. The index is from the lowest address entry
- /// in the GOT.
- unsigned getGOTIndex() const {
- assert(AddrType == isGOTIndex);
- return Target.GOTIndex;
- }
-};
-}
-
-#endif
MachineBlockPlacement.cpp
MachineBranchProbabilityInfo.cpp
MachineCSE.cpp
- MachineCodeEmitter.cpp
MachineCombiner.cpp
MachineCopyPropagation.cpp
MachineDominators.cpp
+++ /dev/null
-//===-- llvm/CodeGen/MachineCodeEmitter.cpp - Code emission -----*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/MachineCodeEmitter.h"
-
-using namespace llvm;
-
-void MachineCodeEmitter::anchor() { }
+++ /dev/null
-//===-- ARMRelocations.h - ARM Code Relocations -----------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the ARM target-specific relocation types.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_ARM_ARMRELOCATIONS_H
-#define LLVM_LIB_TARGET_ARM_ARMRELOCATIONS_H
-
-#include "llvm/CodeGen/MachineRelocation.h"
-
-namespace llvm {
- namespace ARM {
- enum RelocationType {
- // reloc_arm_absolute - Absolute relocation, just add the relocated value
- // to the value already in memory.
- reloc_arm_absolute,
-
- // reloc_arm_relative - PC relative relocation, add the relocated value to
- // the value already in memory, after we adjust it for where the PC is.
- reloc_arm_relative,
-
- // reloc_arm_cp_entry - PC relative relocation for constpool_entry's whose
- // addresses are kept locally in a map.
- reloc_arm_cp_entry,
-
- // reloc_arm_vfp_cp_entry - Same as reloc_arm_cp_entry except the offset
- // should be divided by 4.
- reloc_arm_vfp_cp_entry,
-
- // reloc_arm_machine_cp_entry - Relocation of a ARM machine constantpool
- // entry.
- reloc_arm_machine_cp_entry,
-
- // reloc_arm_jt_base - PC relative relocation for jump tables whose
- // addresses are kept locally in a map.
- reloc_arm_jt_base,
-
- // reloc_arm_pic_jt - PIC jump table entry relocation: dest bb - jt base.
- reloc_arm_pic_jt,
-
- // reloc_arm_branch - Branch address relocation.
- reloc_arm_branch,
-
- // reloc_arm_movt - MOVT immediate relocation.
- reloc_arm_movt,
-
- // reloc_arm_movw - MOVW immediate relocation.
- reloc_arm_movw
- };
- }
-}
-
-#endif
-
+++ /dev/null
-//===-- MipsRelocations.h - Mips Code Relocations ---------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the Mips target-specific relocation types
-// (for relocation-model=static).
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_MIPS_MIPSRELOCATIONS_H
-#define LLVM_LIB_TARGET_MIPS_MIPSRELOCATIONS_H
-
-#include "llvm/CodeGen/MachineRelocation.h"
-
-namespace llvm {
- namespace Mips{
- enum RelocationType {
- // reloc_mips_pc16 - pc relative relocation for branches. The lower 18
- // bits of the difference between the branch target and the branch
- // instruction, shifted right by 2.
- reloc_mips_pc16 = 1,
-
- // reloc_mips_hi - upper 16 bits of the address (modified by +1 if the
- // lower 16 bits of the address is negative).
- reloc_mips_hi = 2,
-
- // reloc_mips_lo - lower 16 bits of the address.
- reloc_mips_lo = 3,
-
- // reloc_mips_26 - lower 28 bits of the address, shifted right by 2.
- reloc_mips_26 = 4
- };
- }
-}
-
-#endif /* MIPSRELOCATIONS_H_ */
+++ /dev/null
-//===-- SparcRelocations.h - Sparc Code Relocations -------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the Sparc target-specific relocation types
-// (for relocation-model=static).
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_SPARC_SPARCRELOCATIONS_H
-#define LLVM_LIB_TARGET_SPARC_SPARCRELOCATIONS_H
-
-#include "llvm/CodeGen/MachineRelocation.h"
-
-namespace llvm {
- namespace SP {
- enum RelocationType {
- // reloc_sparc_hi - upper 22 bits
- reloc_sparc_hi = 1,
-
- // reloc_sparc_lo - lower 10 bits
- reloc_sparc_lo = 2,
-
- // reloc_sparc_pc30 - pc rel. 30 bits for call
- reloc_sparc_pc30 = 3,
-
- // reloc_sparc_pc22 - pc rel. 22 bits for branch
- reloc_sparc_pc22 = 4,
-
- // reloc_sparc_pc22 - pc rel. 19 bits for branch with icc/xcc
- reloc_sparc_pc19 = 5,
-
- // reloc_sparc_h44 - 43-22 bits
- reloc_sparc_h44 = 6,
-
- // reloc_sparc_m44 - 21-12 bits
- reloc_sparc_m44 = 7,
-
- // reloc_sparc_l44 - lower 12 bits
- reloc_sparc_l44 = 8,
-
- // reloc_sparc_hh - 63-42 bits
- reloc_sparc_hh = 9,
-
- // reloc_sparc_hm - 41-32 bits
- reloc_sparc_hm = 10
- };
- }
-}
-
-#endif
+++ /dev/null
-//===-- X86Relocations.h - X86 Code Relocations -----------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the X86 target-specific relocation types.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_X86_X86RELOCATIONS_H
-#define LLVM_LIB_TARGET_X86_X86RELOCATIONS_H
-
-#include "llvm/CodeGen/MachineRelocation.h"
-
-namespace llvm {
- namespace X86 {
- /// RelocationType - An enum for the x86 relocation codes. Note that
- /// the terminology here doesn't follow x86 convention - word means
- /// 32-bit and dword means 64-bit. The relocations will be treated
- /// by JIT or ObjectCode emitters, this is transparent to the x86 code
- /// emitter but JIT and ObjectCode will treat them differently
- enum RelocationType {
- /// reloc_pcrel_word - PC relative relocation, add the relocated value to
- /// the value already in memory, after we adjust it for where the PC is.
- reloc_pcrel_word = 0,
-
- /// reloc_picrel_word - PIC base relative relocation, add the relocated
- /// value to the value already in memory, after we adjust it for where the
- /// PIC base is.
- reloc_picrel_word = 1,
-
- /// reloc_absolute_word - absolute relocation, just add the relocated
- /// value to the value already in memory.
- reloc_absolute_word = 2,
-
- /// reloc_absolute_word_sext - absolute relocation, just add the relocated
- /// value to the value already in memory. In object files, it represents a
- /// value which must be sign-extended when resolving the relocation.
- reloc_absolute_word_sext = 3,
-
- /// reloc_absolute_dword - absolute relocation, just add the relocated
- /// value to the value already in memory.
- reloc_absolute_dword = 4
- };
- }
-}
-
-#endif
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