LLVM
15.0.0git
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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"
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. More... | |
~VPPredInstPHIRecipe () override=default | |
void | execute (VPTransformState &State) override |
Generates phi nodes for live-outs as needed to retain SSA form. More... | |
void | print (raw_ostream &O, const Twine &Indent, VPSlotTracker &SlotTracker) const override |
Print the recipe. More... | |
bool | usesScalars (const VPValue *Op) const override |
Returns true if the recipe uses scalars of operand Op . More... | |
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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 |
void | insertBefore (VPRecipeBase *InsertPos) |
Insert an unlinked recipe into a basic block immediately before the specified recipe. More... | |
void | insertBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator IP) |
Insert an unlinked recipe into BB immediately before the insertion point IP ;. More... | |
void | insertAfter (VPRecipeBase *InsertPos) |
Insert an unlinked Recipe into a basic block immediately after the specified Recipe. More... | |
void | moveAfter (VPRecipeBase *MovePos) |
Unlink this recipe from its current VPBasicBlock and insert it into the VPBasicBlock that MovePos lives in, right after MovePos. More... | |
void | moveBefore (VPBasicBlock &BB, iplist< VPRecipeBase >::iterator I) |
Unlink this recipe and insert into BB before I. More... | |
void | removeFromParent () |
This method unlinks 'this' from the containing basic block, but does not delete it. More... | |
iplist< VPRecipeBase >::iterator | eraseFromParent () |
This method unlinks 'this' from the containing basic block and deletes it. More... | |
Instruction * | getUnderlyingInstr () |
Returns the underlying instruction, if the recipe is a VPValue or nullptr otherwise. More... | |
const Instruction * | getUnderlyingInstr () const |
bool | mayHaveSideEffects () const |
Returns true if the recipe may have side-effects. More... | |
bool | isPhi () const |
Returns true for PHI-like recipes. More... | |
bool | mayReadFromMemory () const |
Returns true if the recipe may read from memory. More... | |
bool | mayWriteToMemory () const |
Returns true if the recipe may write to memory. More... | |
bool | mayReadOrWriteMemory () const |
Returns true if the recipe may read from or write to memory. More... | |
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VPRecipeBase * | getPrevNode () |
const VPRecipeBase * | getPrevNode () const |
Get the previous node, or nullptr for the list head. More... | |
VPRecipeBase * | getNextNode () |
Get the next node, or nullptr for the list tail. More... | |
const VPRecipeBase * | getNextNode () const |
Get the next node, or nullptr for the list tail. More... | |
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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. More... | |
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VPDef (const unsigned char SC) | |
virtual | ~VPDef () |
VPValue * | getVPSingleValue () |
Returns the only VPValue defined by the VPDef. More... | |
const VPValue * | getVPSingleValue () const |
VPValue * | getVPValue (unsigned I) |
Returns the VPValue with index I defined by the VPDef. More... | |
const VPValue * | getVPValue (unsigned I) const |
ArrayRef< VPValue * > | definedValues () |
Returns an ArrayRef of the values defined by the VPDef. More... | |
ArrayRef< VPValue * > | definedValues () const |
Returns an ArrayRef of the values defined by the VPDef. More... | |
unsigned | getNumDefinedValues () const |
Returns the number of values defined by the VPDef. More... | |
unsigned | getVPDefID () const |
void | dump () const |
Dump the VPDef to stderr (for debugging). More... | |
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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 | onlyFirstLaneUsed (const VPValue *Op) const |
Returns true if the VPUser only uses the first lane of operand Op . More... | |
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Value * | getUnderlyingValue () |
Return the underlying Value attached to this VPValue. More... | |
const Value * | getUnderlyingValue () const |
VPValue (Value *UV=nullptr, VPDef *Def=nullptr) | |
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). More... | |
unsigned | getNumUsers () const |
void | addUser (VPUser &User) |
void | removeUser (VPUser &User) |
Remove a single User from the list of users. More... | |
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. More... | |
void | replaceAllUsesWith (VPValue *New) |
VPDef * | getDef () |
const VPDef * | getDef () const |
Value * | getLiveInIRValue () |
Returns the underlying IR value, if this VPValue is defined outside the scope of VPlan. More... | |
const Value * | getLiveInIRValue () const |
Static Public Member Functions | |
static bool | classof (const VPDef *D) |
Method to support type inquiry through isa, cast, and dyn_cast. More... | |
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static bool | classof (const VPDef *D) |
Method to support type inquiry through isa, cast, and dyn_cast. More... | |
static bool | classof (const VPUser *U) |
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static bool | classof (const VPDef *Recipe) |
Method to support type inquiry through isa, cast, and dyn_cast. More... | |
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.
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inline |
Construct a VPPredInstPHIRecipe given PredInst
whose value needs a phi nodes after merging back from a Branch-on-Mask.
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overridedefault |
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overridevirtual |
Generates phi nodes for live-outs as needed to retain SSA form.
Implements llvm::VPRecipeBase.
Definition at line 9846 of file LoopVectorize.cpp.
References llvm::PHINode::addIncoming(), assert(), llvm::VPTransformState::Builder, llvm::IRBuilderBase::CreatePHI(), llvm::VPTransformState::get(), llvm::PoisonValue::get(), llvm::User::getOperand(), llvm::Instruction::getParent(), llvm::BasicBlock::getSinglePredecessor(), llvm::Value::getType(), llvm::InsertElementInst::getType(), llvm::VPTransformState::hasScalarValue(), llvm::VPTransformState::hasVectorValue(), llvm::VPTransformState::Instance, llvm::VPTransformState::reset(), and llvm::VPTransformState::set().
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overridevirtual |
Print the recipe.
Implements llvm::VPDef.
Definition at line 1470 of file VPlan.cpp.
References llvm::RISCVFenceField::O.
Returns true if the recipe uses scalars of operand Op
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Reimplemented from llvm::VPUser.
Definition at line 1650 of file VPlan.h.
References assert(), llvm::is_contained(), and llvm::VPUser::operands().