LLVM: llvm::SwiftErrorValueTracking Class Reference (original) (raw)

#include "[llvm/CodeGen/SwiftErrorValueTracking.h](SwiftErrorValueTracking%5F8h%5Fsource.html)"

Public Member Functions
void setFunction (MachineFunction &MF)
Initialize data structures for specified new function.
const Value * getFunctionArg () const
Get the (unique) function argument that was marked swifterror, or nullptr if this function has no swifterror args.
Register getOrCreateVReg (const MachineBasicBlock *, const Value *)
Get or create the swifterror value virtual register in VRegDefMap for this basic block.
void setCurrentVReg (const MachineBasicBlock *MBB, const Value *, Register)
Set the swifterror virtual register in the VRegDefMap for this basic block.
Register getOrCreateVRegDefAt (const Instruction *, const MachineBasicBlock *, const Value *)
Get or create the swifterror value virtual register for a def of a swifterror by an instruction.
Register getOrCreateVRegUseAt (const Instruction *, const MachineBasicBlock *, const Value *)
Get or create the swifterror value virtual register for a use of a swifterror by an instruction.
bool createEntriesInEntryBlock (DebugLoc DbgLoc)
Create initial definitions of swifterror values in the entry block of the current function.
void propagateVRegs ()
Propagate assigned swifterror vregs through a function, synthesizing PHI nodes when needed to maintain consistency.
void preassignVRegs (MachineBasicBlock *MBB, BasicBlock::const_iterator Begin, BasicBlock::const_iterator End)

Definition at line 34 of file SwiftErrorValueTracking.h.

◆ createEntriesInEntryBlock()

bool SwiftErrorValueTracking::createEntriesInEntryBlock ( DebugLoc DbgLoc )

◆ getFunctionArg()

const Value * llvm::SwiftErrorValueTracking::getFunctionArg ( ) const inline

Get the (unique) function argument that was marked swifterror, or nullptr if this function has no swifterror args.

Definition at line 72 of file SwiftErrorValueTracking.h.

◆ getOrCreateVReg()

◆ getOrCreateVRegDefAt()

◆ getOrCreateVRegUseAt()

◆ preassignVRegs()

◆ propagateVRegs()

void SwiftErrorValueTracking::propagateVRegs ( )

Propagate assigned swifterror vregs through a function, synthesizing PHI nodes when needed to maintain consistency.

Propagate swifterror values through the machine function CFG.

Definition at line 146 of file SwiftErrorValueTracking.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::any_of(), assert(), llvm::ReversePostOrderTraversal< GraphT, GT >::begin(), llvm::BuildMI(), llvm::cast(), llvm::dwarf_linker::DebugLoc, DL, llvm::SmallVectorTemplateCommon< T, typename >::empty(), llvm::ReversePostOrderTraversal< GraphT, GT >::end(), llvm::MDNode::get(), llvm::MachineBasicBlock::getFirstNonPHI(), llvm::MachineBasicBlock::getNumber(), getOrCreateVReg(), llvm::InnerAnalysisManagerProxy< AnalysisManagerT, IRUnitT, ExtraArgTs... >::Key, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::isa(), MBB, MRI, PHI, llvm::SmallVectorTemplateBase< T, bool >::push_back(), Register, setCurrentVReg(), and llvm::SmallVectorTemplateCommon< T, typename >::size().

◆ setCurrentVReg()

◆ setFunction()

The documentation for this class was generated from the following files: