#define LLVM_CODEGEN_MACHINECODEEMITTER_H
#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/DebugLoc.h"
namespace llvm {
protected:
/// BufferBegin/BufferEnd - Pointers to the start and end of the memory
/// allocated for this code buffer.
- unsigned char *BufferBegin, *BufferEnd;
+ uint8_t *BufferBegin, *BufferEnd;
/// CurBufferPtr - Pointer to the next byte of memory to fill when emitting
/// code. This is guranteed 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).
- unsigned char *CurBufferPtr;
+ uint8_t *CurBufferPtr;
public:
virtual ~MachineCodeEmitter() {}
/// false.
///
virtual bool finishFunction(MachineFunction &F) = 0;
-
- /// startGVStub - This callback is invoked when the JIT needs the
- /// address of a GV (e.g. function) that has not been code generated yet.
- /// The StubSize specifies the total size required by the stub.
- ///
- virtual void startGVStub(const GlobalValue* GV, unsigned StubSize,
- unsigned Alignment = 1) = 0;
-
- /// startGVStub - This callback is invoked when the JIT needs the address of a
- /// GV (e.g. function) that has not been code generated yet. Buffer points to
- /// memory already allocated for this stub.
- ///
- virtual void startGVStub(const GlobalValue* GV, void *Buffer,
- unsigned StubSize) = 0;
-
- /// finishGVStub - This callback is invoked to terminate a GV stub.
- ///
- virtual void *finishGVStub(const GlobalValue* F) = 0;
/// emitByte - This callback is invoked when a byte needs to be written to the
/// output stream.
///
- void emitByte(unsigned char B) {
+ 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(unsigned W) {
+ void emitWordLE(uint32_t W) {
if (4 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (unsigned char)(W >> 0);
- *CurBufferPtr++ = (unsigned char)(W >> 8);
- *CurBufferPtr++ = (unsigned char)(W >> 16);
- *CurBufferPtr++ = (unsigned char)(W >> 24);
+ *CurBufferPtr++ = (uint8_t)(W >> 0);
+ *CurBufferPtr++ = (uint8_t)(W >> 8);
+ *CurBufferPtr++ = (uint8_t)(W >> 16);
+ *CurBufferPtr++ = (uint8_t)(W >> 24);
} else {
CurBufferPtr = BufferEnd;
}
/// emitWordBE - This callback is invoked when a 32-bit word needs to be
/// written to the output stream in big-endian format.
///
- void emitWordBE(unsigned W) {
+ void emitWordBE(uint32_t W) {
if (4 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (unsigned char)(W >> 24);
- *CurBufferPtr++ = (unsigned char)(W >> 16);
- *CurBufferPtr++ = (unsigned char)(W >> 8);
- *CurBufferPtr++ = (unsigned char)(W >> 0);
+ *CurBufferPtr++ = (uint8_t)(W >> 24);
+ *CurBufferPtr++ = (uint8_t)(W >> 16);
+ *CurBufferPtr++ = (uint8_t)(W >> 8);
+ *CurBufferPtr++ = (uint8_t)(W >> 0);
} else {
CurBufferPtr = BufferEnd;
}
///
void emitDWordLE(uint64_t W) {
if (8 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (unsigned char)(W >> 0);
- *CurBufferPtr++ = (unsigned char)(W >> 8);
- *CurBufferPtr++ = (unsigned char)(W >> 16);
- *CurBufferPtr++ = (unsigned char)(W >> 24);
- *CurBufferPtr++ = (unsigned char)(W >> 32);
- *CurBufferPtr++ = (unsigned char)(W >> 40);
- *CurBufferPtr++ = (unsigned char)(W >> 48);
- *CurBufferPtr++ = (unsigned char)(W >> 56);
+ *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;
}
///
void emitDWordBE(uint64_t W) {
if (8 <= BufferEnd-CurBufferPtr) {
- *CurBufferPtr++ = (unsigned char)(W >> 56);
- *CurBufferPtr++ = (unsigned char)(W >> 48);
- *CurBufferPtr++ = (unsigned char)(W >> 40);
- *CurBufferPtr++ = (unsigned char)(W >> 32);
- *CurBufferPtr++ = (unsigned char)(W >> 24);
- *CurBufferPtr++ = (unsigned char)(W >> 16);
- *CurBufferPtr++ = (unsigned char)(W >> 8);
- *CurBufferPtr++ = (unsigned char)(W >> 0);
+ *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;
}
if(Alignment <= (uintptr_t)(BufferEnd-CurBufferPtr)) {
// Move the current buffer ptr up to the specified alignment.
CurBufferPtr =
- (unsigned char*)(((uintptr_t)CurBufferPtr+Alignment-1) &
- ~(uintptr_t)(Alignment-1));
+ (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(unsigned Value) {
+ void emitULEB128Bytes(uint64_t Value) {
do {
- unsigned char Byte = Value & 0x7f;
+ uint8_t Byte = Value & 0x7f;
Value >>= 7;
if (Value) Byte |= 0x80;
emitByte(Byte);
/// emitSLEB128Bytes - This callback is invoked when a SLEB128 needs to be
/// written to the output stream.
- void emitSLEB128Bytes(int Value) {
- int Sign = Value >> (8 * sizeof(Value) - 1);
+ void emitSLEB128Bytes(uint64_t Value) {
+ uint64_t Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
do {
- unsigned char Byte = Value & 0x7f;
+ uint8_t Byte = Value & 0x7f;
Value >>= 7;
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
if (IsMore) Byte |= 0x80;
void emitString(const std::string &String) {
for (unsigned i = 0, N = static_cast<unsigned>(String.size());
i < N; ++i) {
- unsigned char C = String[i];
+ uint8_t C = String[i];
emitByte(C);
}
emitByte(0);
}
/// emitInt32 - Emit a int32 directive.
- void emitInt32(int Value) {
+ void emitInt32(int32_t Value) {
if (4 <= BufferEnd-CurBufferPtr) {
*((uint32_t*)CurBufferPtr) = Value;
CurBufferPtr += 4;
(*(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) {}
+
/// emitLabel - Emits a label
virtual void emitLabel(uint64_t LabelID) = 0;
/// getCurrentPCOffset - Return the offset from the start of the emitted
/// buffer that we are currently writing to.
- uintptr_t getCurrentPCOffset() const {
+ virtual uintptr_t getCurrentPCOffset() const {
return CurBufferPtr-BufferBegin;
}
/// 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!
projects / oota-llvm.git / blobdiff