//===-- CodeGen/MachineInstBuilder.h - Simplify creation of MIs -*- C++ -*-===//
//
-// This file exposes a function named BuildMI, which is useful for dramatically
-// simplifying how MachineInstr's are created. Instead of using code like this:
+// The LLVM Compiler Infrastructure
//
-// M = new MachineInstr(X86::ADDrr32);
-// M->SetMachineOperandVal(0, MachineOperand::MO_VirtualRegister, argVal1);
-// M->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, argVal2);
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
-// we can now use code like this:
+//===----------------------------------------------------------------------===//
+//
+// This file exposes a function named BuildMI, which is useful for dramatically
+// simplifying how MachineInstr's are created. It allows use of code like this:
//
// M = BuildMI(X86::ADDrr8, 2).addReg(argVal1).addReg(argVal2);
//
#ifndef LLVM_CODEGEN_MACHINEINSTRBUILDER_H
#define LLVM_CODEGEN_MACHINEINSTRBUILDER_H
-#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/CodeGen/MachineFunction.h"
-struct MachineInstrBuilder {
- MachineInstr *MI;
+namespace llvm {
- MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
+class TargetInstrDesc;
+class MDNode;
+
+namespace RegState {
+ enum {
+ Define = 0x2,
+ Implicit = 0x4,
+ Kill = 0x8,
+ Dead = 0x10,
+ Undef = 0x20,
+ EarlyClobber = 0x40,
+ ImplicitDefine = Implicit | Define,
+ ImplicitKill = Implicit | Kill
+ };
+}
+
+class MachineInstrBuilder {
+ MachineInstr *MI;
+public:
+ MachineInstrBuilder() : MI(0) {}
+ explicit MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
/// Allow automatic conversion to the machine instruction we are working on.
///
operator MachineInstr*() const { return MI; }
+ operator MachineBasicBlock::iterator() const { return MI; }
/// addReg - Add a new virtual register operand...
///
- const MachineInstrBuilder &addReg(int RegNo,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addRegOperand(RegNo, Ty);
+ const
+ MachineInstrBuilder &addReg(unsigned RegNo, unsigned flags = 0,
+ unsigned SubReg = 0) const {
+ assert((flags & 0x1) == 0 &&
+ "Passing in 'true' to addReg is forbidden! Use enums instead.");
+ MI->addOperand(MachineOperand::CreateReg(RegNo,
+ flags & RegState::Define,
+ flags & RegState::Implicit,
+ flags & RegState::Kill,
+ flags & RegState::Dead,
+ flags & RegState::Undef,
+ flags & RegState::EarlyClobber,
+ SubReg));
return *this;
}
- /// addReg - Add an LLVM value that is to be used as a register...
+ /// addImm - Add a new immediate operand.
///
- const MachineInstrBuilder &addReg(Value *V,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addRegOperand(V, Ty);
+ const MachineInstrBuilder &addImm(int64_t Val) const {
+ MI->addOperand(MachineOperand::CreateImm(Val));
return *this;
}
- /// addClobber - Assert that this MI is going to clobber a specific
- /// register. Useful for instructions that always clobber certain hard regs.
- /// (Same as addReg(RegNo, true) but shorter and more obvious).
- ///
- const MachineInstrBuilder &addClobber(int RegNo) const {
- MI->addRegOperand(RegNo, MOTy::Def);
+ const MachineInstrBuilder &addFPImm(const ConstantFP *Val) const {
+ MI->addOperand(MachineOperand::CreateFPImm(Val));
return *this;
}
- /// addPCDisp - Add an LLVM value to be treated as a PC relative
- /// displacement...
- ///
- const MachineInstrBuilder &addPCDisp(Value *V) const {
- MI->addPCDispOperand(V);
+ const MachineInstrBuilder &addMBB(MachineBasicBlock *MBB,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(MachineOperand::CreateMBB(MBB, TargetFlags));
return *this;
}
- /// addMReg - Add a machine register operand...
- ///
- const MachineInstrBuilder &addMReg(int Reg,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addMachineRegOperand(Reg, Ty);
+ const MachineInstrBuilder &addFrameIndex(unsigned Idx) const {
+ MI->addOperand(MachineOperand::CreateFI(Idx));
return *this;
}
- /// addSImm - Add a new sign extended immediate operand...
- ///
- const MachineInstrBuilder &addSImm(int64_t val) const {
- MI->addSignExtImmOperand(val);
+ const MachineInstrBuilder &addConstantPoolIndex(unsigned Idx,
+ int Offset = 0,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(MachineOperand::CreateCPI(Idx, Offset, TargetFlags));
return *this;
}
- /// addZImm - Add a new zero extended immediate operand...
- ///
- const MachineInstrBuilder &addZImm(int64_t Val) const {
- MI->addZeroExtImmOperand(Val);
+ const MachineInstrBuilder &addJumpTableIndex(unsigned Idx,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(MachineOperand::CreateJTI(Idx, TargetFlags));
return *this;
}
- const MachineInstrBuilder &addMBB(MachineBasicBlock *MBB) const {
- MI->addMachineBasicBlockOperand(MBB);
+ const MachineInstrBuilder &addGlobalAddress(GlobalValue *GV,
+ int64_t Offset = 0,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(MachineOperand::CreateGA(GV, Offset, TargetFlags));
return *this;
}
- const MachineInstrBuilder &addFrameIndex(unsigned Idx) const {
- MI->addFrameIndexOperand(Idx);
+ const MachineInstrBuilder &addExternalSymbol(const char *FnName,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(MachineOperand::CreateES(FnName, TargetFlags));
+ return *this;
+ }
+
+ const MachineInstrBuilder &addMemOperand(MachineMemOperand *MMO) const {
+ MI->addMemOperand(*MI->getParent()->getParent(), MMO);
+ return *this;
+ }
+
+ const MachineInstrBuilder &addOperand(const MachineOperand &MO) const {
+ MI->addOperand(MO);
+ return *this;
+ }
+
+ const MachineInstrBuilder &addMetadata(MDNode *MD) const {
+ MI->addOperand(MachineOperand::CreateMetadata(MD));
return *this;
}
};
/// BuildMI - Builder interface. Specify how to create the initial instruction
-/// itself. NumOperands is the number of operands to the machine instruction to
-/// allow for memory efficient representation of machine instructions.
+/// itself.
///
-inline MachineInstrBuilder BuildMI(MachineOpCode Opcode, unsigned NumOperands) {
- return MachineInstrBuilder(new MachineInstr(Opcode, NumOperands, true, true));
+inline MachineInstrBuilder BuildMI(MachineFunction &MF,
+ DebugLoc DL,
+ const TargetInstrDesc &TID) {
+ return MachineInstrBuilder(MF.CreateMachineInstr(TID, DL));
}
-/// BuildMI - This version of the builder also sets up the first "operand" as a
-/// destination virtual register. NumOperands is the number of additional add*
-/// calls that are expected, it does not include the destination register.
+/// BuildMI - This version of the builder sets up the first operand as a
+/// destination virtual register.
///
-inline MachineInstrBuilder BuildMI(MachineOpCode Opcode, unsigned NumOperands,
+inline MachineInstrBuilder BuildMI(MachineFunction &MF,
+ DebugLoc DL,
+ const TargetInstrDesc &TID,
unsigned DestReg) {
- return MachineInstrBuilder(new MachineInstr(Opcode, NumOperands+1,
- true, true)).addReg(DestReg, MOTy::Def);
+ return MachineInstrBuilder(MF.CreateMachineInstr(TID, DL))
+ .addReg(DestReg, RegState::Define);
}
+/// BuildMI - This version of the builder inserts the newly-built
+/// instruction before the given position in the given MachineBasicBlock, and
+/// sets up the first operand as a destination virtual register.
+///
+inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
+ MachineBasicBlock::iterator I,
+ DebugLoc DL,
+ const TargetInstrDesc &TID,
+ unsigned DestReg) {
+ MachineInstr *MI = BB.getParent()->CreateMachineInstr(TID, DL);
+ BB.insert(I, MI);
+ return MachineInstrBuilder(MI).addReg(DestReg, RegState::Define);
+}
-/// BuildMI - This version of the builder inserts the built MachineInstr into
-/// the specified MachineBasicBlock.
+/// BuildMI - This version of the builder inserts the newly-built
+/// instruction before the given position in the given MachineBasicBlock, and
+/// does NOT take a destination register.
///
-inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB, MachineOpCode Opcode,
- unsigned NumOperands) {
- return MachineInstrBuilder(new MachineInstr(BB, Opcode, NumOperands));
+inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
+ MachineBasicBlock::iterator I,
+ DebugLoc DL,
+ const TargetInstrDesc &TID) {
+ MachineInstr *MI = BB.getParent()->CreateMachineInstr(TID, DL);
+ BB.insert(I, MI);
+ return MachineInstrBuilder(MI);
}
-/// BuildMI - This version of the builder inserts the built MachineInstr into
-/// the specified MachineBasicBlock, and also sets up the first "operand" as a
-/// destination virtual register. NumOperands is the number of additional add*
-/// calls that are expected, it does not include the destination register.
+/// BuildMI - This version of the builder inserts the newly-built
+/// instruction at the end of the given MachineBasicBlock, and does NOT take a
+/// destination register.
///
-inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB, MachineOpCode Opcode,
- unsigned NumOperands, unsigned DestReg) {
- return MachineInstrBuilder(new MachineInstr(BB, Opcode,
- NumOperands+1)).addReg(DestReg,
- MOTy::Def);
+inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
+ DebugLoc DL,
+ const TargetInstrDesc &TID) {
+ return BuildMI(*BB, BB->end(), DL, TID);
}
+/// BuildMI - This version of the builder inserts the newly-built
+/// instruction at the end of the given MachineBasicBlock, and sets up the first
+/// operand as a destination virtual register.
+///
+inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
+ DebugLoc DL,
+ const TargetInstrDesc &TID,
+ unsigned DestReg) {
+ return BuildMI(*BB, BB->end(), DL, TID, DestReg);
+}
+
+inline unsigned getDefRegState(bool B) {
+ return B ? RegState::Define : 0;
+}
+inline unsigned getImplRegState(bool B) {
+ return B ? RegState::Implicit : 0;
+}
+inline unsigned getKillRegState(bool B) {
+ return B ? RegState::Kill : 0;
+}
+inline unsigned getDeadRegState(bool B) {
+ return B ? RegState::Dead : 0;
+}
+inline unsigned getUndefRegState(bool B) {
+ return B ? RegState::Undef : 0;
+}
+
+} // End llvm namespace
+
#endif
projects / oota-llvm.git / blobdiff