#define LLVM_CODEGEN_MACHINEINSTRBUILDER_H
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineInstrBundle.h"
#include "llvm/Support/ErrorHandling.h"
namespace llvm {
MachineFunction *MF;
MachineInstr *MI;
public:
- MachineInstrBuilder() : MF(0), MI(0) {}
+ MachineInstrBuilder() : MF(nullptr), MI(nullptr) {}
/// Create a MachineInstrBuilder for manipulating an existing instruction.
- /// F must be the machine function that was used to allocate I.
+ /// F must be the machine function that was used to allocate I.
MachineInstrBuilder(MachineFunction &F, MachineInstr *I) : MF(&F), MI(I) {}
/// Allow automatic conversion to the machine instruction we are working on.
- ///
operator MachineInstr*() const { return MI; }
MachineInstr *operator->() const { return MI; }
operator MachineBasicBlock::iterator() const { return MI; }
- /// addReg - Add a new virtual register operand...
- ///
- const
- MachineInstrBuilder &addReg(unsigned RegNo, unsigned flags = 0,
- unsigned SubReg = 0) const {
+ /// If conversion operators fail, use this method to get the MachineInstr
+ /// explicitly.
+ MachineInstr *getInstr() const { return MI; }
+
+ /// Add a new virtual register operand.
+ 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(*MF, MachineOperand::CreateReg(RegNo,
return *this;
}
- /// addImm - Add a new immediate operand.
- ///
+ /// Add a new immediate operand.
const MachineInstrBuilder &addImm(int64_t Val) const {
MI->addOperand(*MF, MachineOperand::CreateImm(Val));
return *this;
return *this;
}
+ const MachineInstrBuilder &addBlockAddress(const BlockAddress *BA,
+ int64_t Offset = 0,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(*MF, MachineOperand::CreateBA(BA, Offset, TargetFlags));
+ return *this;
+ }
+
const MachineInstrBuilder &addRegMask(const uint32_t *Mask) const {
MI->addOperand(*MF, MachineOperand::CreateRegMask(Mask));
return *this;
const MachineInstrBuilder &addMetadata(const MDNode *MD) const {
MI->addOperand(*MF, MachineOperand::CreateMetadata(MD));
+ assert((MI->isDebugValue() ? static_cast<bool>(MI->getDebugVariable())
+ : true) &&
+ "first MDNode argument of a DBG_VALUE not a variable");
return *this;
}
-
- const MachineInstrBuilder &addSym(MCSymbol *Sym) const {
- MI->addOperand(*MF, MachineOperand::CreateMCSymbol(Sym));
+
+ const MachineInstrBuilder &addCFIIndex(unsigned CFIIndex) const {
+ MI->addOperand(*MF, MachineOperand::CreateCFIIndex(CFIIndex));
+ return *this;
+ }
+
+ const MachineInstrBuilder &addSym(MCSymbol *Sym,
+ unsigned char TargetFlags = 0) const {
+ MI->addOperand(*MF, MachineOperand::CreateMCSymbol(Sym, TargetFlags));
return *this;
}
}
}
}
+
+ /// Copy all the implicit operands from OtherMI onto this one.
+ const MachineInstrBuilder ©ImplicitOps(const MachineInstr *OtherMI) {
+ MI->copyImplicitOps(*MF, OtherMI);
+ return *this;
+ }
};
-/// BuildMI - Builder interface. Specify how to create the initial instruction
-/// itself.
-///
+/// Builder interface. Specify how to create the initial instruction itself.
inline MachineInstrBuilder BuildMI(MachineFunction &MF,
DebugLoc DL,
const MCInstrDesc &MCID) {
return MachineInstrBuilder(MF, MF.CreateMachineInstr(MCID, DL));
}
-/// BuildMI - This version of the builder sets up the first operand as a
+/// This version of the builder sets up the first operand as a
/// destination virtual register.
-///
inline MachineInstrBuilder BuildMI(MachineFunction &MF,
DebugLoc DL,
const MCInstrDesc &MCID,
.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.
-///
+/// 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,
return BuildMI(BB, MII, DL, MCID, DestReg);
}
-/// 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.
-///
+/// 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,
DebugLoc DL,
return BuildMI(BB, MII, DL, MCID);
}
-/// 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.
-///
+/// 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,
DebugLoc DL,
const MCInstrDesc &MCID) {
return BuildMI(*BB, BB->end(), DL, MCID);
}
-/// 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.
-///
+/// 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 MCInstrDesc &MCID,
return BuildMI(*BB, BB->end(), DL, MCID, DestReg);
}
+/// This version of the builder builds a DBG_VALUE intrinsic
+/// for either a value in a register or a register-indirect+offset
+/// address. The convention is that a DBG_VALUE is indirect iff the
+/// second operand is an immediate.
+inline MachineInstrBuilder BuildMI(MachineFunction &MF, DebugLoc DL,
+ const MCInstrDesc &MCID, bool IsIndirect,
+ unsigned Reg, unsigned Offset,
+ const MDNode *Variable, const MDNode *Expr) {
+ assert(isa<DILocalVariable>(Variable) && "not a variable");
+ assert(cast<DIExpression>(Expr)->isValid() && "not an expression");
+ assert(cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(DL) &&
+ "Expected inlined-at fields to agree");
+ if (IsIndirect)
+ return BuildMI(MF, DL, MCID)
+ .addReg(Reg, RegState::Debug)
+ .addImm(Offset)
+ .addMetadata(Variable)
+ .addMetadata(Expr);
+ else {
+ assert(Offset == 0 && "A direct address cannot have an offset.");
+ return BuildMI(MF, DL, MCID)
+ .addReg(Reg, RegState::Debug)
+ .addReg(0U, RegState::Debug)
+ .addMetadata(Variable)
+ .addMetadata(Expr);
+ }
+}
+
+/// This version of the builder builds a DBG_VALUE intrinsic
+/// for either a value in a register or a register-indirect+offset
+/// address and inserts it at position I.
+inline MachineInstrBuilder BuildMI(MachineBasicBlock &BB,
+ MachineBasicBlock::iterator I, DebugLoc DL,
+ const MCInstrDesc &MCID, bool IsIndirect,
+ unsigned Reg, unsigned Offset,
+ const MDNode *Variable, const MDNode *Expr) {
+ assert(isa<DILocalVariable>(Variable) && "not a variable");
+ assert(cast<DIExpression>(Expr)->isValid() && "not an expression");
+ MachineFunction &MF = *BB.getParent();
+ MachineInstr *MI =
+ BuildMI(MF, DL, MCID, IsIndirect, Reg, Offset, Variable, Expr);
+ BB.insert(I, MI);
+ return MachineInstrBuilder(MF, MI);
+}
+
+
inline unsigned getDefRegState(bool B) {
return B ? RegState::Define : 0;
}
inline unsigned getInternalReadRegState(bool B) {
return B ? RegState::InternalRead : 0;
}
+inline unsigned getDebugRegState(bool B) {
+ return B ? RegState::Debug : 0;
+}
/// Helper class for constructing bundles of MachineInstrs.
/// Create an MIBundleBuilder representing an existing instruction or bundle
/// that has MI as its head.
explicit MIBundleBuilder(MachineInstr *MI)
- : MBB(*MI->getParent()), Begin(MI) {
- MachineBasicBlock::iterator I = MI;
- ++I;
- End = I.getInstrIterator();
- }
+ : MBB(*MI->getParent()), Begin(MI), End(getBundleEnd(MI)) {}
/// Return a reference to the basic block containing this bundle.
MachineBasicBlock &getMBB() const { return MBB; }
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