class GISelObserverWrapper
Declaration
class GISelObserverWrapper : public Delegate,
public GISelChangeObserver { /* full declaration omitted */ };Description
Simple wrapper observer that takes several observers, and calls each one for each event. If there are multiple observers (say CSE, Legalizer, Combiner), it's sufficient to register this to the machine function as the delegate.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:66
Inherits from: MachineFunction::Delegate, GISelChangeObserver
Member Variables
- private SmallVector<llvm::GISelChangeObserver*, 4> Observers
Method Overview
- public GISelObserverWrapper()
- public GISelObserverWrapper(ArrayRef<llvm::GISelChangeObserver *> Obs)
- public void MF_HandleInsertion(llvm::MachineInstr & MI)
- public void MF_HandleRemoval(llvm::MachineInstr & MI)
- public void addObserver(llvm::GISelChangeObserver * O)
- public void changedInstr(llvm::MachineInstr & MI)
- public void changingInstr(llvm::MachineInstr & MI)
- public void createdInstr(llvm::MachineInstr & MI)
- public void erasingInstr(llvm::MachineInstr & MI)
- public void removeObserver(llvm::GISelChangeObserver * O)
Inherited from GISelChangeObserver:
- public changedInstr
- public changingAllUsesOfReg
- public changingInstr
- public createdInstr
- public erasingInstr
- public finishedChangingAllUsesOfReg
Inherited from MachineFunction::Delegate:
Methods
¶GISelObserverWrapper()
GISelObserverWrapper()Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:71
¶GISelObserverWrapper(
ArrayRef<llvm::GISelChangeObserver*> Obs)
GISelObserverWrapper(
ArrayRef<llvm::GISelChangeObserver*> Obs)Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:72
Parameters
- ArrayRef<llvm::GISelChangeObserver*> Obs
¶void MF_HandleInsertion(llvm::MachineInstr& MI)
void MF_HandleInsertion(llvm::MachineInstr& MI)Description
Callback after an insertion. This should not modify the MI directly.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:101
Parameters
¶void MF_HandleRemoval(llvm::MachineInstr& MI)
void MF_HandleRemoval(llvm::MachineInstr& MI)Description
Callback before a removal. This should not modify the MI directly.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:102
Parameters
¶void addObserver(llvm::GISelChangeObserver* O)
void addObserver(llvm::GISelChangeObserver* O)Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:75
Parameters
¶void changedInstr(llvm::MachineInstr& MI)
void changedInstr(llvm::MachineInstr& MI)Description
This instruction was mutated in some way.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:96
Parameters
¶void changingInstr(llvm::MachineInstr& MI)
void changingInstr(llvm::MachineInstr& MI)Description
This instruction is about to be mutated in some way.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:92
Parameters
¶void createdInstr(llvm::MachineInstr& MI)
void createdInstr(llvm::MachineInstr& MI)Description
An instruction has been created and inserted into the function. Note that the instruction might not be a fully fledged instruction at this point and won't be if the MachineFunction::Delegate is calling it. This is because the delegate only sees the construction of the MachineInstr before operands have been added.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:88
Parameters
¶void erasingInstr(llvm::MachineInstr& MI)
void erasingInstr(llvm::MachineInstr& MI)Description
An instruction is about to be erased.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:84
Parameters
¶void removeObserver(llvm::GISelChangeObserver* O)
void removeObserver(llvm::GISelChangeObserver* O)Declared at: llvm/include/llvm/CodeGen/GlobalISel/GISelChangeObserver.h:78