VPPredInstPHIRecipe is a recipe for generating the phi nodes needed when control converges back from a Branch-on-Mask. More...
#include "Transforms/Vectorize/VPlan.h"
Inheritance diagram for llvm::VPPredInstPHIRecipe:
Collaboration diagram for llvm::VPPredInstPHIRecipe:
Public Member Functions | |
| VPPredInstPHIRecipe (VPValue *PredV) | |
Construct a VPPredInstPHIRecipe given PredInst whose value needs a phi nodes after merging back from a Branch-on-Mask. | |
| ~VPPredInstPHIRecipe () override=default | |
| void | execute (VPTransformState &State) override |
| Generates phi nodes for live-outs as needed to retain SSA form. | |
| void | print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override |
| Print the recipe. | |
| bool | usesScalars (const VPValue *Op) const override |
Returns true if the recipe uses scalars of operand Op. | |
 Public Member Functions inherited from llvm::VPRecipeBase | |
| VPRecipeBase (const unsigned char SC, ArrayRef< VPValue * > Operands) | |
| template<typename IterT > | |
| VPRecipeBase (const unsigned char SC, iterator_range< IterT > Operands) | |
| virtual | ~VPRecipeBase ()=default |
| VPBasicBlock * | getParent () |
| const VPBasicBlock * | getParent () const |
| virtual void | execute (VPTransformState &State)=0 |
| The method which generates the output IR instructions that correspond to this VPRecipe, thereby "executing" the VPlan. | |
| void | insertBefore (VPRecipeBase *InsertPos) |
| Insert an unlinked recipe into a basic block immediately before the specified recipe. | |
| void | insertBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator IP) |
Insert an unlinked recipe into BB immediately before the insertion point IP;. | |
| void | insertAfter (VPRecipeBase *InsertPos) |
| Insert an unlinked Recipe into a basic block immediately after the specified Recipe. | |
| void | moveAfter (VPRecipeBase *MovePos) |
| Unlink this recipe from its current VPBasicBlock and insert it into the VPBasicBlock that MovePos lives in, right after MovePos. | |
| void | moveBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator I) |
| Unlink this recipe and insert into BB before I. | |
| void | removeFromParent () |
| This method unlinks 'this' from the containing basic block, but does not delete it. | |
| iplist< VPRecipeBase >::iterator | eraseFromParent () |
| This method unlinks 'this' from the containing basic block and deletes it. | |
| Instruction * | getUnderlyingInstr () |
| Returns the underlying instruction, if the recipe is a VPValue or nullptr otherwise. | |
| const Instruction * | getUnderlyingInstr () const |
| bool | mayHaveSideEffects () const |
| Returns true if the recipe may have side-effects. | |
| bool | isPhi () const |
| Returns true for PHI-like recipes. | |
| bool | mayReadFromMemory () const |
| Returns true if the recipe may read from memory. | |
| bool | mayWriteToMemory () const |
| Returns true if the recipe may write to memory. | |
| bool | mayReadOrWriteMemory () const |
| Returns true if the recipe may read from or write to memory. | |
| Public Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock > | |
| VPRecipeBase * | getPrevNode () |
| const VPRecipeBase * | getPrevNode () const |
Get the previous node, or nullptr for the list head. | |
| VPRecipeBase * | getNextNode () |
Get the next node, or nullptr for the list tail. | |
| const VPRecipeBase * | getNextNode () const |
Get the next node, or nullptr for the list tail. | |
| Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type > | |
| self_iterator | getIterator () |
| const_self_iterator | getIterator () const |
| reverse_self_iterator | getReverseIterator () |
| const_reverse_self_iterator | getReverseIterator () const |
| bool | isSentinel () const |
| Check whether this is the sentinel node. | |
| Public Member Functions inherited from llvm::VPDef | |
| VPDef (const unsigned char SC) | |
| virtual | ~VPDef () |
| VPValue * | getVPSingleValue () |
| Returns the only VPValue defined by the VPDef. | |
| const VPValue * | getVPSingleValue () const |
| VPValue * | getVPValue (unsigned I) |
Returns the VPValue with index I defined by the VPDef. | |
| const VPValue * | getVPValue (unsigned I) const |
| ArrayRef< VPValue * > | definedValues () |
| Returns an ArrayRef of the values defined by the VPDef. | |
| ArrayRef< VPValue * > | definedValues () const |
| Returns an ArrayRef of the values defined by the VPDef. | |
| unsigned | getNumDefinedValues () const |
| Returns the number of values defined by the VPDef. | |
| unsigned | getVPDefID () const |
| void | dump () const |
| Dump the VPDef to stderr (for debugging). | |
| virtual void | print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const =0 |
| Each concrete VPDef prints itself. | |
| Public Member Functions inherited from llvm::VPUser | |
| VPUser ()=delete | |
| VPUser (const VPUser &)=delete | |
| VPUser & | operator= (const VPUser &)=delete |
| virtual | ~VPUser () |
| VPUserID | getVPUserID () const |
| void | addOperand (VPValue *Operand) |
| unsigned | getNumOperands () const |
| VPValue * | getOperand (unsigned N) const |
| void | setOperand (unsigned I, VPValue *New) |
| void | removeLastOperand () |
| operand_iterator | op_begin () |
| const_operand_iterator | op_begin () const |
| operand_iterator | op_end () |
| const_operand_iterator | op_end () const |
| operand_range | operands () |
| const_operand_range | operands () const |
| virtual bool | usesScalars (const VPValue *Op) const |
Returns true if the VPUser uses scalars of operand Op. | |
| virtual bool | onlyFirstLaneUsed (const VPValue *Op) const |
Returns true if the VPUser only uses the first lane of operand Op. | |
| Public Member Functions inherited from llvm::VPValue | |
| Value * | getUnderlyingValue () |
| Return the underlying Value attached to this VPValue. | |
| const Value * | getUnderlyingValue () const |
| VPValue (Value *UV=nullptr) | |
| Create a live-in VPValue. | |
| VPValue (VPDef *Def, Value *UV=nullptr) | |
Create a VPValue for a Def which is a subclass of VPValue. | |
| VPValue (Value *UV, VPDef *Def) | |
Create a VPValue for a Def which defines multiple values. | |
| VPValue (const VPValue &)=delete | |
| VPValue & | operator= (const VPValue &)=delete |
| virtual | ~VPValue () |
| unsigned | getVPValueID () const |
| void | printAsOperand (raw_ostream &OS, VPSlotTracker &Tracker) const |
| void | print (raw_ostream &OS, VPSlotTracker &Tracker) const |
| void | dump () const |
| Dump the value to stderr (for debugging). | |
| unsigned | getNumUsers () const |
| void | addUser (VPUser &User) |
| void | removeUser (VPUser &User) |
Remove a single User from the list of users. | |
| user_iterator | user_begin () |
| const_user_iterator | user_begin () const |
| user_iterator | user_end () |
| const_user_iterator | user_end () const |
| user_range | users () |
| const_user_range | users () const |
| bool | hasMoreThanOneUniqueUser () |
| Returns true if the value has more than one unique user. | |
| void | replaceAllUsesWith (VPValue *New) |
| VPRecipeBase * | getDefiningRecipe () |
| Returns the recipe defining this VPValue or nullptr if it is not defined by a recipe, i.e. | |
| const VPRecipeBase * | getDefiningRecipe () const |
| bool | hasDefiningRecipe () const |
| Returns true if this VPValue is defined by a recipe. | |
| Value * | getLiveInIRValue () |
| Returns the underlying IR value, if this VPValue is defined outside the scope of VPlan. | |
| const Value * | getLiveInIRValue () const |
| bool | isDefinedOutsideVectorRegions () const |
| Returns true if the VPValue is defined outside any vector regions, i.e. | |
Additional Inherited Members | |
| Public Types inherited from llvm::VPDef | |
| using | VPRecipeTy = enum { VPBranchOnMaskSC, VPDerivedIVSC, VPExpandSCEVSC, VPInstructionSC, VPInterleaveSC, VPReductionSC, VPReplicateSC, VPScalarIVStepsSC, VPWidenCallSC, VPWidenCanonicalIVSC, VPWidenGEPSC, VPWidenMemoryInstructionSC, VPWidenSC, VPWidenSelectSC, VPBlendSC, VPPredInstPHISC, VPCanonicalIVPHISC, VPActiveLaneMaskPHISC, VPFirstOrderRecurrencePHISC, VPWidenPHISC, VPWidenIntOrFpInductionSC, VPWidenPointerInductionSC, VPReductionPHISC, VPFirstPHISC=VPBlendSC, VPFirstHeaderPHISC=VPCanonicalIVPHISC, VPLastPHISC=VPReductionPHISC, } |
| An enumeration for keeping track of the concrete subclass of VPRecipeBase that is actually instantiated. | |
| Public Types inherited from llvm::VPUser | |
| enum class | VPUserID { Recipe , LiveOut } |
| Subclass identifier (for isa/dyn_cast). More... | |
| typedef SmallVectorImpl< VPValue * >::iterator | operand_iterator |
| typedef SmallVectorImpl< VPValue * >::const_iterator | const_operand_iterator |
| typedef iterator_range< operand_iterator > | operand_range |
| typedef iterator_range< const_operand_iterator > | const_operand_range |
| Public Types inherited from llvm::VPValue | |
| enum | { VPValueSC , VPVRecipeSC } |
| An enumeration for keeping track of the concrete subclass of VPValue that are actually instantiated. More... | |
| typedef SmallVectorImpl< VPUser * >::iterator | user_iterator |
| typedef SmallVectorImpl< VPUser * >::const_iterator | const_user_iterator |
| typedef iterator_range< user_iterator > | user_range |
| typedef iterator_range< const_user_iterator > | const_user_range |
| Static Public Member Functions inherited from llvm::VPRecipeBase | |
| static bool | classof (const VPDef *D) |
| Method to support type inquiry through isa, cast, and dyn_cast. | |
| static bool | classof (const VPUser *U) |
| Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type > | |
| using | self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, false, false > |
| using | const_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, false, true > |
| using | reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, true, false > |
| using | const_reverse_self_iterator = ilist_iterator< ilist_detail::compute_node_options< T, Options... >::type, true, true > |
| Protected Member Functions inherited from llvm::ilist_node_with_parent< VPRecipeBase, VPBasicBlock > | |
| ilist_node_with_parent ()=default | |
| Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< T, Options... >::type > | |
| ilist_node_impl ()=default | |
| Protected Member Functions inherited from llvm::VPUser | |
| void | printOperands (raw_ostream &O, VPSlotTracker &SlotTracker) const |
Print the operands to O. | |
| VPUser (ArrayRef< VPValue * > Operands, VPUserID ID) | |
| VPUser (std::initializer_list< VPValue * > Operands, VPUserID ID) | |
| template<typename IterT > | |
| VPUser (iterator_range< IterT > Operands, VPUserID ID) | |
| Protected Member Functions inherited from llvm::VPValue | |
| VPValue (const unsigned char SC, Value *UV=nullptr, VPDef *Def=nullptr) | |
| void | setUnderlyingValue (Value *Val) |
| Protected Attributes inherited from llvm::VPValue | |
| Value * | UnderlyingVal |
| VPDef * | Def |
| Pointer to the VPDef that defines this VPValue. | |
Detailed Description
VPPredInstPHIRecipe is a recipe for generating the phi nodes needed when control converges back from a Branch-on-Mask.
The phi nodes are needed in order to merge values that are set under such a branch and feed their uses. The phi nodes can be scalar or vector depending on the users of the value. This recipe works in concert with VPBranchOnMaskRecipe.
Constructor & Destructor Documentation
◆ VPPredInstPHIRecipe()
|
inline |
Construct a VPPredInstPHIRecipe given PredInst whose value needs a phi nodes after merging back from a Branch-on-Mask.
◆ ~VPPredInstPHIRecipe()
|
overridedefault |
Member Function Documentation
◆ execute()
|
overridevirtual |
Generates phi nodes for live-outs as needed to retain SSA form.
Implements llvm::VPRecipeBase.
Definition at line 968 of file VPlanRecipes.cpp.
References llvm::PHINode::addIncoming(), assert(), llvm::VPTransformState::Builder, llvm::IRBuilderBase::CreatePHI(), llvm::PoisonValue::get(), llvm::VPTransformState::get(), llvm::User::getOperand(), llvm::VPUser::getOperand(), llvm::Instruction::getParent(), llvm::BasicBlock::getSinglePredecessor(), llvm::InsertElementInst::getType(), llvm::Value::getType(), llvm::VPValue::getUnderlyingValue(), llvm::VPTransformState::hasScalarValue(), llvm::VPTransformState::hasVectorValue(), llvm::VPTransformState::Instance, llvm::VPTransformState::reset(), and llvm::VPTransformState::set().
◆ print()
|
overridevirtual |
Print the recipe.
Implements llvm::VPDef.
Definition at line 1015 of file VPlanRecipes.cpp.
References llvm::VPValue::printAsOperand(), and llvm::VPUser::printOperands().
◆ usesScalars()
Returns true if the recipe uses scalars of operand Op.
Reimplemented from llvm::VPUser.
Definition at line 1623 of file VPlan.h.
References assert(), llvm::is_contained(), and llvm::VPUser::operands().
The documentation for this class was generated from the following files:
- lib/Transforms/Vectorize/VPlan.h
- lib/Transforms/Vectorize/VPlanRecipes.cpp
