LLVM: llvm::sandboxir::VecUtils Class Reference (original) (raw)

#include "[llvm/Transforms/Vectorize/SandboxVectorizer/VecUtils.h](VecUtils%5F8h%5Fsource.html)"

Static Public Member Functions
static int getNumElements (Type *Ty)
\Returns the number of elements in Ty.
static Type * getElementType (Type *Ty)
Returns Ty if scalar or its element type if vector.
template
static bool areConsecutive (LoadOrStoreT *I1, LoadOrStoreT *I2, ScalarEvolution &SE, const DataLayout &DL)
\Returns true if I1 and I2 are load/stores accessing consecutive memory addresses.
template
static bool areConsecutive (ArrayRef< Value * > &Bndl, ScalarEvolution &SE, const DataLayout &DL)
static unsigned getNumLanes (Type *Ty)
\Returns the number of vector lanes of Ty or 1 if not a vector.
static unsigned getNumLanes (Value *V)
\Returns the expected vector lanes of V or 1 if not a vector.
static unsigned getNumLanes (ArrayRef< Value * > Bndl)
\Returns the total number of lanes across all values in Bndl.
static Type * getWideType (Type *ElemTy, unsigned NumElts)
\Returns .
static Instruction * getLowest (ArrayRef< Instruction * > Instrs)
\Returns the instruction in Instrs that is lowest in the BB.
static Instruction * getLowest (ArrayRef< Value * > Vals, BasicBlock *BB)
\Returns the lowest instruction in Vals, or nullptr if no instructions are found.
static Instruction * getLastPHIOrSelf (Instruction *I)
If I is not a PHI it returns it.
static Type * tryGetCommonScalarType (ArrayRef< Value * > Bndl)
If all values in Bndl are of the same scalar type then return it, otherwise return nullptr.
static Type * getCommonScalarType (ArrayRef< Value * > Bndl)
Similar to tryGetCommonScalarType() but will assert that there is a common type.
static LLVM_ABI unsigned getFloorPowerOf2 (unsigned Num)
\Returns the first integer power of 2 that is <= Num.
static std::optional< PackPattern > matchPack (Instruction *I)
If I is the last instruction of a pack pattern (i.e., an InsertElement into a vector), then this function returns the instructions in the pack and the operands in the pack, else returns nullopt.
static LLVM_DUMP_METHOD void dump (ArrayRef< Value * > Bndl)
Helper dump function for debugging.
static LLVM_DUMP_METHOD void dump (ArrayRef< Instruction * > Bndl)

Definition at line 41 of file VecUtils.h.

◆ areConsecutive() [1/2]

template

◆ areConsecutive() [2/2]

template

◆ dump() [1/2]

◆ dump() [2/2]

void llvm::sandboxir::VecUtils::dump ( ArrayRef< Value * > Bndl) static

◆ getCommonScalarType()

Type * llvm::sandboxir::VecUtils::getCommonScalarType ( ArrayRef< Value * > Bndl) inlinestatic

◆ getElementType()

Type * llvm::sandboxir::VecUtils::getElementType ( Type * Ty) inlinestatic

◆ getFloorPowerOf2()

◆ getLastPHIOrSelf()

◆ getLowest() [1/2]

◆ getLowest() [2/2]

◆ getNumElements()

int llvm::sandboxir::VecUtils::getNumElements ( Type * Ty) inlinestatic

\Returns the number of elements in Ty.

That is the number of lanes if a fixed vector or 1 if scalar. ScalableVectors have unknown size and therefore are unsupported.

Definition at line 46 of file VecUtils.h.

References assert(), llvm::cast(), and llvm::isa().

◆ getNumLanes() [1/3]

\Returns the total number of lanes across all values in Bndl.

Definition at line 105 of file VecUtils.h.

References getNumLanes().

◆ getNumLanes() [2/3]

unsigned llvm::sandboxir::VecUtils::getNumLanes ( Type * Ty) inlinestatic

◆ getNumLanes() [3/3]

unsigned llvm::sandboxir::VecUtils::getNumLanes ( Value * V) inlinestatic

◆ getWideType()

Type * llvm::sandboxir::VecUtils::getWideType ( Type * ElemTy, unsigned NumElts ) inlinestatic

◆ matchPack()

If I is the last instruction of a pack pattern (i.e., an InsertElement into a vector), then this function returns the instructions in the pack and the operands in the pack, else returns nullopt.

Here is an example of a matched pattern: PackA0 = insertelement <2 x i8> poison, i8 v0, i64 0 PackA1 = insertelement <2 x i8> PackA0, i8 v1, i64 1 TODO: this currently detects only simple canonicalized patterns.

Definition at line 226 of file VecUtils.h.

References assert(), llvm::dyn_cast(), getNumLanes(), llvm::sandboxir::User::getOperand(), llvm::sandboxir::Instruction::getParent(), I, llvm::isa(), llvm::reverse(), and llvm::seq().

Referenced by llvm::sandboxir::PackReuse::runOnRegion().

◆ tryGetCommonScalarType()

Type * llvm::sandboxir::VecUtils::tryGetCommonScalarType ( ArrayRef< Value * > Bndl) inlinestatic

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