#ifndef LLVM_CODEGEN_JITCODEEMITTER_H
#define LLVM_CODEGEN_JITCODEEMITTER_H
-#include <string>
-#include "llvm/System/DataTypes.h"
-#include "llvm/Support/MathExtras.h"
+#include "llvm/ADT/DenseMap.h"
#include "llvm/CodeGen/MachineCodeEmitter.h"
-
-using namespace std;
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/MathExtras.h"
+#include <string>
namespace llvm {
class Value;
class GlobalValue;
class Function;
-
+
/// JITCodeEmitter - This class defines two sorts of methods: those for
-/// emitting the actual bytes of machine code, and those for emitting auxillary
+/// 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
/// occurred, more memory is allocated, and we reemit the code into it.
///
class JITCodeEmitter : public MachineCodeEmitter {
+ virtual void anchor();
public:
virtual ~JITCodeEmitter() {}
}
}
- /// emitAlignment - Move the CurBufferPtr pointer up the the specified
+ /// emitAlignment - Move the CurBufferPtr pointer up to the specified
/// alignment (saturated to BufferEnd of course).
void emitAlignment(unsigned Alignment) {
if (Alignment == 0) Alignment = 1;
/// emitULEB128Bytes - This callback is invoked when a ULEB128 needs to be
/// written to the output stream.
- void emitULEB128Bytes(uint64_t Value) {
+ void emitULEB128Bytes(uint64_t Value, unsigned PadTo = 0) {
do {
uint8_t Byte = Value & 0x7f;
Value >>= 7;
- if (Value) Byte |= 0x80;
+ if (Value || PadTo != 0) Byte |= 0x80;
emitByte(Byte);
} while (Value);
+
+ if (PadTo) {
+ do {
+ uint8_t Byte = (PadTo > 1) ? 0x80 : 0x0;
+ emitByte(Byte);
+ } while (--PadTo);
+ }
}
/// emitSLEB128Bytes - This callback is invoked when a SLEB128 needs to be
/// 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) {
+ for (size_t i = 0, N = String.size(); i < N; ++i) {
uint8_t C = String[i];
emitByte(C);
}
/// emitLabel - Emits a label
- virtual void emitLabel(uint64_t LabelID) = 0;
+ 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
///
virtual uintptr_t getMachineBasicBlockAddress(MachineBasicBlock *MBB) const= 0;
- /// getLabelAddress - Return the address of the specified LabelID, only usable
- /// after the LabelID has been emitted.
+ /// getLabelAddress - Return the address of the specified Label, only usable
+ /// after the Label has been emitted.
///
- virtual uintptr_t getLabelAddress(uint64_t LabelID) const = 0;
+ 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;
+
+ /// getLabelLocations - Return the label locations map of the label IDs to
+ /// their address.
+ virtual DenseMap<MCSymbol*, uintptr_t> *getLabelLocations() { return 0; }
};
} // End llvm namespace