//===-- 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/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+
+class TargetInstrDescriptor;
class MachineInstrBuilder {
MachineInstr *MI;
public:
- MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
+ 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);
- return *this;
- }
-
- /// addReg - Add an LLVM value that is to be used as a register...
- ///
- const MachineInstrBuilder &addReg(Value *V,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addRegOperand(V, Ty);
+ const
+ MachineInstrBuilder &addReg(unsigned RegNo, bool isDef = false,
+ bool isImp = false, bool isKill = false,
+ bool isDead = false, unsigned SubReg = 0) const {
+ MI->addRegOperand(RegNo, isDef, isImp, isKill, isDead, SubReg);
return *this;
}
- /// addReg - Add an LLVM value that is to be used as a register...
+ /// addImm - Add a new immediate operand.
///
- const MachineInstrBuilder &addCCReg(Value *V,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addCCRegOperand(V, Ty);
- return *this;
- }
-
- /// addRegDef - Add an LLVM value that is to be defined as a register... this
- /// is the same as addReg(V, MOTy::Def).
- ///
- const MachineInstrBuilder &addRegDef(Value *V) const {
- return addReg(V, MOTy::Def);
- }
-
- /// addPCDisp - Add an LLVM value to be treated as a PC relative
- /// displacement...
- ///
- const MachineInstrBuilder &addPCDisp(Value *V) const {
- MI->addPCDispOperand(V);
- return *this;
- }
-
- /// addMReg - Add a machine register operand...
- ///
- const MachineInstrBuilder &addMReg(int Reg,
- MOTy::UseType Ty = MOTy::Use) const {
- MI->addMachineRegOperand(Reg, Ty);
- return *this;
- }
-
- /// addSImm - Add a new sign extended immediate operand...
- ///
- const MachineInstrBuilder &addSImm(int64_t val) const {
- MI->addSignExtImmOperand(val);
- return *this;
- }
-
- /// addZImm - Add a new zero extended immediate operand...
- ///
- const MachineInstrBuilder &addZImm(int64_t Val) const {
- MI->addZeroExtImmOperand(Val);
+ const MachineInstrBuilder &addImm(int64_t Val) const {
+ MI->addImmOperand(Val);
return *this;
}
return *this;
}
- const MachineInstrBuilder &addConstantPoolIndex(unsigned Idx) const {
- MI->addConstantPoolIndexOperand(Idx);
+ const MachineInstrBuilder &addConstantPoolIndex(unsigned Idx,
+ int Offset = 0) const {
+ MI->addConstantPoolIndexOperand(Idx, Offset);
+ return *this;
+ }
+
+ const MachineInstrBuilder &addJumpTableIndex(unsigned Idx) const {
+ MI->addJumpTableIndexOperand(Idx);
return *this;
}
const MachineInstrBuilder &addGlobalAddress(GlobalValue *GV,
- bool isPCRelative = false) const {
- MI->addGlobalAddressOperand(GV, isPCRelative);
+ int Offset = 0) const {
+ MI->addGlobalAddressOperand(GV, Offset);
return *this;
}
- const MachineInstrBuilder &addExternalSymbol(const std::string &Name,
- bool isPCRelative = false) const{
- MI->addExternalSymbolOperand(Name, isPCRelative);
+ const MachineInstrBuilder &addExternalSymbol(const char *FnName) const{
+ MI->addExternalSymbolOperand(FnName);
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(const TargetInstrDescriptor &TID) {
+ return MachineInstrBuilder(new MachineInstr(TID));
+}
+
+/// BuildMI - This version of the builder sets up the first operand as a
+/// destination virtual register.
///
-inline MachineInstrBuilder BuildMI(MachineOpCode Opcode, unsigned NumOperands) {
- return MachineInstrBuilder(new MachineInstr(Opcode, NumOperands, true, true));
+inline MachineInstrBuilder BuildMI(const TargetInstrDescriptor &TID,
+ unsigned DestReg) {
+ return MachineInstrBuilder(new MachineInstr(TID)).addReg(DestReg, true);
}
-/// 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 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(MachineOpCode Opcode, unsigned NumOperands,
+inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
+ MachineBasicBlock::iterator I,
+ const TargetInstrDescriptor &TID,
unsigned DestReg) {
- return MachineInstrBuilder(new MachineInstr(Opcode, NumOperands+1,
- true, true)).addReg(DestReg, MOTy::Def);
+ MachineInstr *MI = new MachineInstr(TID);
+ BB.insert(I, MI);
+ return MachineInstrBuilder(MI).addReg(DestReg, true);
}
+/// 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,
+ MachineBasicBlock::iterator I,
+ const TargetInstrDescriptor &TID) {
+ MachineInstr *MI = new MachineInstr(TID);
+ BB.insert(I, MI);
+ return MachineInstrBuilder(MI);
+}
-/// 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 at the end of 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,
+ const TargetInstrDescriptor &TID) {
+ return BuildMI(*BB, BB->end(), TID);
}
-/// 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 sets up the first
+/// operand as a destination virtual 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,
+ const TargetInstrDescriptor &TID,
+ unsigned DestReg) {
+ return BuildMI(*BB, BB->end(), TID, DestReg);
}
+} // End llvm namespace
+
#endif
projects / oota-llvm.git / blobdiff