llvm::FunctionLoweringInfo

Synopsis

Declared in <llvm/CodeGen/FunctionLoweringInfo.h>

class FunctionLoweringInfo;

Types

Name	Description
`LiveOutInfo`	Known-bits and sign-bit info for a live-out virtual register.
`StatepointRelocationRecord`	Helper object to track which of three possible relocation mechanisms are used for a particular value being relocated over a statepoint.

Type Aliases

Name	Description
`StatepointSpillMapTy`	Map from relocated IR values to their statepoint relocation records.

Member Functions

Name	Description
`AddLiveOutRegInfo`	AddLiveOutRegInfo - Adds LiveOutInfo for a register.
`ComputePHILiveOutRegInfo`	ComputePHILiveOutRegInfo - Compute LiveOutInfo for a PHI's destination register based on the LiveOutInfo of its operands.
`CreateReg`	Create a new virtual register of type `VT.`
`CreateRegs`	`CreateRegs` overloads
`GetLiveOutRegInfo`	`GetLiveOutRegInfo` overloads
`InitializeRegForValue`	Allocate and record the virtual register for IR value `V` in ValueMap.
`InvalidatePHILiveOutRegInfo`	InvalidatePHILiveOutRegInfo - Invalidates a PHI's LiveOutInfo, to be called when a block is visited before all of its predecessors.
`clear`	clear - Clear out all the function-specific state. This returns this FunctionLoweringInfo to an empty state, ready to be used for a different function.
`getArgumentFrameIndex`	getArgumentFrameIndex - Get frame index for the byval argument.
`getCatchPadExceptionPointerVReg`	Return or create the virtual register for catchpad exception pointer `CPI.`
`getCurrentCallSite`	Get the call site currently being processed, if any. Return zero if none.
`getMBB`	Return the MachineBasicBlock corresponding to IR basic block `BB.`
`getValueFromVirtualReg`	This method is called from TargetLowerinInfo::isSDNodeSourceOfDivergence to get the Value corresponding to the live-in virtual register.
`isExportedInst`	isExportedInst - Return true if the specified value is an instruction exported from its block.
`set`	set - Initialize this FunctionLoweringInfo with the given Function and its associated MachineFunction.
`setArgumentFrameIndex`	setArgumentFrameIndex - Record frame index for the byval argument.
`setCurrentCallSite`	Set the call site currently being processed.

Data Members

Name	Description
`ArgDbgValues`	ArgDbgValues - A list of DBG_VALUE instructions created during isel for function arguments that are inserted after scheduling is completed.
`BPI`	Optional branch-probability analysis used during lowering.
`ByValArgFrameIndexMap`	ByValArgFrameIndexMap - Keep track of frame indices for byval arguments.
`CanLowerReturn`	CanLowerReturn - true iff the function's return value can be lowered to registers.
`CatchPadExceptionPointers`	Track virtual registers created for exception pointers.
`CurCallSite`	The current call site index being processed, if any. 0 if none.
`DemoteRegister`	DemoteRegister - if CanLowerReturn is false, DemoteRegister is a vreg allocated to hold a pointer to the hidden sret parameter.
`DescribedArgs`	Bitvector with a bit set if corresponding argument is described in ArgDbgValues. Using arg numbers according to Argument numbering.
`ExceptionPointerVirtReg`	Virtual registers for the exception pointer and selector in a landing pad.
`ExceptionSelectorVirtReg`	Virtual registers for the exception pointer and selector in a landing pad.
`Fn`	The LLVM IR function currently being lowered.
`InsertPt`	MBB - The current insert position inside the current block.
`MBB`	MBB - The current block.
`MBBMap`	A mapping from LLVM basic block number to their machine block.
`MF`	The MachineFunction being constructed for `Fn.`
`OrigNumPHINodesToUpdate`	Number of PHI nodes to update when processing of this block began.
`PHINodesToUpdate`	PHI machine instructions whose operands need updating after this block.
`PreferredExtendType`	Record the preferred extend type (ISD::SIGN_EXTEND or ISD::ZERO_EXTEND) for a value.
`PreprocessedDVRDeclares`	Collection of dbg_declare instructions handled after argument lowering and before ISel proper.
`RegFixups`	RegFixups - Registers which need to be replaced after isel is done.
`RegInfo`	Register information for the current MachineFunction.
`RegsWithFixups`	Set of virtual registers that have pending register fixups.
`SplitCSR`	True if part of the CSRs will be handled via explicit copies.
`StatepointRelocationMaps`	Per-statepoint maps of relocated values to relocation records.
`StatepointStackSlots`	Temporary stack slots used to spill values at statepoints.
`StaticAllocaMap`	Frame indices for fixed-size entry-block allocas.
`TLI`	Target lowering hooks for the current target.
`UA`	Optional uniformity analysis used during divergence-aware isel.
`ValueMap`	ValueMap - Since we emit code for the function a basic block at a time, we must remember which virtual registers hold the values for cross-basic-block values.
`VirtReg2Value`	Inverse of `ValueMap` from virtual register to IR value.
`VisitedBBs`	The set of basic blocks visited thus far by instruction selection. Indexed by basic block number.