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

Produce an estimate of the unrolled cost of the specified loop. More...

#include "[llvm/Transforms/Utils/UnrollLoop.h](UnrollLoop%5F8h%5Fsource.html)"

Public Member Functions
LLVM_ABI UnrollCostEstimator (const Loop *L, const TargetTransformInfo &TTI, const SmallPtrSetImpl< const Value * > &EphValues, unsigned BEInsns)
LLVM_ABI bool canUnroll () const
Whether it is legal to unroll this loop.
uint64_t getRolledLoopSize () const
LLVM_ABI uint64_t getUnrolledLoopSize (const TargetTransformInfo::UnrollingPreferences &UP, unsigned CountOverwrite=0) const
Returns loop size estimation for unrolled loop, given the unrolling configuration specified by UP.

Detailed Description

Produce an estimate of the unrolled cost of the specified loop.

This is used to a) produce a cost estimate for partial unrolling and b) to cheaply estimate cost for full unrolling when we don't want to symbolically evaluate all iterations.

Definition at line 135 of file UnrollLoop.h.

Constructor & Destructor Documentation

Member Function Documentation

◆ canUnroll()

bool UnrollCostEstimator::canUnroll ( ) const

◆ getRolledLoopSize()

uint64_t llvm::UnrollCostEstimator::getRolledLoopSize ( ) const inline

◆ getUnrolledLoopSize()

Member Data Documentation

◆ Convergence

◆ ConvergenceAllowsRuntime

bool llvm::UnrollCostEstimator::ConvergenceAllowsRuntime

◆ NumInlineCandidates

unsigned llvm::UnrollCostEstimator::NumInlineCandidates

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