#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.
MachineInstr *operator->() const { return MI; }
operator MachineBasicBlock::iterator() const { return MI; }
+ /// If conversion operators fail, use this method to get the MachineInstr
+ /// explicitly.
+ MachineInstr *getInstr() const { return MI; }
+
/// addReg - Add a new virtual register operand...
///
const
const MachineInstrBuilder &addMetadata(const MDNode *MD) const {
MI->addOperand(*MF, MachineOperand::CreateMetadata(MD));
+ assert((MI->isDebugValue() ? MI->getDebugVariable().Verify() : true) &&
+ "first MDNode argument of a DBG_VALUE not a DIVariable");
return *this;
}
-
+
+ const MachineInstrBuilder &addCFIIndex(unsigned CFIIndex) const {
+ MI->addOperand(*MF, MachineOperand::CreateCFIIndex(CFIIndex));
+ return *this;
+ }
+
const MachineInstrBuilder &addSym(MCSymbol *Sym) const {
MI->addOperand(*MF, MachineOperand::CreateMCSymbol(Sym));
return *this;
return BuildMI(*BB, BB->end(), DL, MCID, DestReg);
}
+/// BuildMI - 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(DIVariable(Variable).Verify() && "not a DIVariable");
+ assert(DIExpression(Expr).Verify() && "not a DIExpression");
+ 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);
+ }
+}
+
+/// BuildMI - 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(DIVariable(Variable).Verify() && "not a DIVariable");
+ assert(DIExpression(Expr).Verify() && "not a DIExpression");
+ 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;
}
/// 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; }