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Stub definition of the PowerPC CodeEmitter class; this isn't functional (yet).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15600 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-08-09 23:03:59 +00:00
parent 7103fba019
commit b05daff7fa
2 changed files with 122 additions and 8 deletions
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65
lib/Target/PowerPC/PPCCodeEmitter.cpp
View File

@ -11,9 +11,44 @@
//===----------------------------------------------------------------------===//
#include "PowerPCTargetMachine.h"
#include "llvm/CodeGen/MachineCodeEmitter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/Passes.h"
#include "Support/Debug.h"
namespace llvm {
namespace {
class PowerPCCodeEmitter : public MachineFunctionPass {
TargetMachine &TM;
MachineCodeEmitter &MCE;
public:
PowerPCCodeEmitter(TargetMachine &T, MachineCodeEmitter &M)
: TM(T), MCE(M) {}
const char *getPassName() const { return "PowerPC Machine Code Emitter"; }
/// runOnMachineFunction - emits the given MachineFunction to memory
///
bool runOnMachineFunction(MachineFunction &MF);
/// emitBasicBlock - emits the given MachineBasicBlock to memory
///
void emitBasicBlock(MachineBasicBlock &MBB);
/// emitWord - write a 32-bit word to memory at the current PC
///
void emitWord(unsigned w) { MCE.emitWord(w); }
unsigned getValueBit(int64_t Val, unsigned bit);
/// getBinaryCodeForInstr - returns the assembled code for an instruction
///
unsigned getBinaryCodeForInstr(MachineInstr &MI) { return 0; }
};
}
/// addPassesToEmitMachineCode - Add passes to the specified pass manager to get
/// machine code emitted. This uses a MachineCodeEmitter object to handle
/// actually outputting the machine code and resolving things like the address
@ -22,11 +57,31 @@ namespace llvm {
///
bool PowerPCTargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
MachineCodeEmitter &MCE) {
return true;
// It should go something like this:
// PM.add(new Emitter(MCE)); // Machine code emitter pass for PowerPC
// Machine code emitter pass for PowerPC
PM.add(new PowerPCCodeEmitter(*this, MCE));
// Delete machine code for this function after emitting it:
// PM.add(createMachineCodeDeleter());
PM.add(createMachineCodeDeleter());
// We don't yet support machine code emission
return true;
}
bool PowerPCCodeEmitter::runOnMachineFunction(MachineFunction &MF) {
MCE.startFunction(MF);
MCE.emitConstantPool(MF.getConstantPool());
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
emitBasicBlock(*I);
MCE.finishFunction(MF);
return false;
}
void PowerPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) {
for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I)
emitWord(getBinaryCodeForInstr(*I));
}
unsigned PowerPCCodeEmitter::getValueBit(int64_t Val, unsigned bit) {
Val >>= bit;
return (Val & 1);
}
void *PowerPCJITInfo::getJITStubForFunction(Function *F,
@ -39,5 +94,7 @@ void PowerPCJITInfo::replaceMachineCodeForFunction (void *Old, void *New) {
assert (0 && "PowerPCJITInfo::replaceMachineCodeForFunction not implemented");
}
//#include "PowerPCGenCodeEmitter.inc"
} // end llvm namespace

65
lib/Target/PowerPC/PowerPCCodeEmitter.cpp
View File

@ -11,9 +11,44 @@
//===----------------------------------------------------------------------===//
#include "PowerPCTargetMachine.h"
#include "llvm/CodeGen/MachineCodeEmitter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/Passes.h"
#include "Support/Debug.h"
namespace llvm {
namespace {
class PowerPCCodeEmitter : public MachineFunctionPass {
TargetMachine &TM;
MachineCodeEmitter &MCE;
public:
PowerPCCodeEmitter(TargetMachine &T, MachineCodeEmitter &M)
: TM(T), MCE(M) {}
const char *getPassName() const { return "PowerPC Machine Code Emitter"; }
/// runOnMachineFunction - emits the given MachineFunction to memory
///
bool runOnMachineFunction(MachineFunction &MF);
/// emitBasicBlock - emits the given MachineBasicBlock to memory
///
void emitBasicBlock(MachineBasicBlock &MBB);
/// emitWord - write a 32-bit word to memory at the current PC
///
void emitWord(unsigned w) { MCE.emitWord(w); }
unsigned getValueBit(int64_t Val, unsigned bit);
/// getBinaryCodeForInstr - returns the assembled code for an instruction
///
unsigned getBinaryCodeForInstr(MachineInstr &MI) { return 0; }
};
}
/// addPassesToEmitMachineCode - Add passes to the specified pass manager to get
/// machine code emitted. This uses a MachineCodeEmitter object to handle
/// actually outputting the machine code and resolving things like the address
@ -22,11 +57,31 @@ namespace llvm {
///
bool PowerPCTargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
MachineCodeEmitter &MCE) {
return true;
// It should go something like this:
// PM.add(new Emitter(MCE)); // Machine code emitter pass for PowerPC
// Machine code emitter pass for PowerPC
PM.add(new PowerPCCodeEmitter(*this, MCE));
// Delete machine code for this function after emitting it:
// PM.add(createMachineCodeDeleter());
PM.add(createMachineCodeDeleter());
// We don't yet support machine code emission
return true;
}
bool PowerPCCodeEmitter::runOnMachineFunction(MachineFunction &MF) {
MCE.startFunction(MF);
MCE.emitConstantPool(MF.getConstantPool());
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
emitBasicBlock(*I);
MCE.finishFunction(MF);
return false;
}
void PowerPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) {
for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I)
emitWord(getBinaryCodeForInstr(*I));
}
unsigned PowerPCCodeEmitter::getValueBit(int64_t Val, unsigned bit) {
Val >>= bit;
return (Val & 1);
}
void *PowerPCJITInfo::getJITStubForFunction(Function *F,
@ -39,5 +94,7 @@ void PowerPCJITInfo::replaceMachineCodeForFunction (void *Old, void *New) {
assert (0 && "PowerPCJITInfo::replaceMachineCodeForFunction not implemented");
}
//#include "PowerPCGenCodeEmitter.inc"
} // end llvm namespace