// MachineInstrs are pool-allocated and owned by MachineFunction.
friend class MachineFunction;
+ void
+ dumprImpl(const MachineRegisterInfo &MRI, unsigned Depth, unsigned MaxDepth,
+ SmallPtrSetImpl<const MachineInstr *> &AlreadySeenInstrs) const;
+
public:
MachineInstr(const MachineInstr &) = delete;
MachineInstr &operator=(const MachineInstr &) = delete;
bool AddNewLine = true,
const TargetInstrInfo *TII = nullptr) const;
void dump() const;
+ /// Print on dbgs() the current instruction and the instructions defining its
+ /// operands and so on until we reach \p MaxDepth.
+ void dumpr(const MachineRegisterInfo &MRI,
+ unsigned MaxDepth = UINT_MAX) const;
/// @}
//===--------------------------------------------------------------------===//
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/LowLevelTypeImpl.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
dbgs() << " ";
print(dbgs());
}
+
+LLVM_DUMP_METHOD void MachineInstr::dumprImpl(
+ const MachineRegisterInfo &MRI, unsigned Depth, unsigned MaxDepth,
+ SmallPtrSetImpl<const MachineInstr *> &AlreadySeenInstrs) const {
+ if (Depth >= MaxDepth)
+ return;
+ if (!AlreadySeenInstrs.insert(this).second)
+ return;
+ // PadToColumn always inserts at least one space.
+ // Don't mess up the alignment if we don't want any space.
+ if (Depth)
+ fdbgs().PadToColumn(Depth * 2);
+ print(fdbgs());
+ for (const MachineOperand &MO : operands()) {
+ if (!MO.isReg() || MO.isDef())
+ continue;
+ Register Reg = MO.getReg();
+ if (Reg.isPhysical())
+ continue;
+ const MachineInstr *NewMI = MRI.getUniqueVRegDef(Reg);
+ if (NewMI == nullptr)
+ continue;
+ NewMI->dumprImpl(MRI, Depth + 1, MaxDepth, AlreadySeenInstrs);
+ }
+}
+
+LLVM_DUMP_METHOD void MachineInstr::dumpr(const MachineRegisterInfo &MRI,
+ unsigned MaxDepth) const {
+ SmallPtrSet<const MachineInstr *, 16> AlreadySeenInstrs;
+ dumprImpl(MRI, 0, MaxDepth, AlreadySeenInstrs);
+}
#endif
void MachineInstr::print(raw_ostream &OS, bool IsStandalone, bool SkipOpers,