LLVM: lib/Transforms/Utils/LoopUtils.cpp File Reference (original) (raw)
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| Classes | |
|---|---|
| struct | RewritePhi |
| struct | PointerBounds |
| IR Values for the lower and upper bounds of a pointer evolution. More... | |
| Functions | |
|---|---|
| static MDNode * | createStringMetadata (Loop *TheLoop, StringRef Name, unsigned V) |
| Create MDNode for input string. | |
| static BranchInst * | getExpectedExitLoopLatchBranch (Loop *L) |
| Checks if L has an exiting latch branch. | |
| static std::optional< uint64_t > | getEstimatedTripCount (BranchInst *ExitingBranch, Loop *L, uint64_t &OrigExitWeight) |
| Return the estimated trip count for any exiting branch which dominates the loop latch. | |
| static bool | hasHardUserWithinLoop (const Loop *L, const Instruction *I) |
| static bool | canLoopBeDeleted (Loop *L, SmallVector< RewritePhi, 8 > &RewritePhiSet) |
| static bool | checkIsIndPhi (PHINode *Phi, Loop *L, ScalarEvolution *SE, InductionDescriptor &ID) |
| Checks if it is safe to call InductionDescriptor::isInductionPHI for Phi, and returns true if this Phi is an induction phi in the loop. | |
| static PointerBounds | expandBounds (const RuntimeCheckingPtrGroup *CG, Loop *TheLoop, Instruction *Loc, SCEVExpander &Exp, bool HoistRuntimeChecks) |
| Expand code for the lower and upper bound of the pointer group CG in TheLoop. | |
| static SmallVector< std::pair< PointerBounds, PointerBounds >, 4 > | expandBounds (const SmallVectorImpl< RuntimePointerCheck > &PointerChecks, Loop *L, Instruction *Loc, SCEVExpander &Exp, bool HoistRuntimeChecks) |
| Turns a collection of checks into a collection of expanded upper and lower bounds for both pointers in the check. | |
◆ DEBUG_TYPE
#define DEBUG_TYPE "loop-utils"
◆ canLoopBeDeleted()
◆ checkIsIndPhi()
◆ createStringMetadata()
◆ expandBounds() [1/2]
Expand code for the lower and upper bound of the pointer group CG in TheLoop.
Returns
the values for the bounds.
Definition at line 1866 of file LoopUtils.cpp.
References llvm::RuntimeCheckingPtrGroup::AddressSpace, llvm::ScalarEvolution::applyLoopGuards(), llvm::IRBuilderBase::CreateFreeze(), llvm::dbgs(), End, llvm::Value::getContext(), llvm::ScalarEvolution::getExitCount(), llvm::LoopBase< BlockT, LoopT >::getLoopLatch(), llvm::LoopBase< BlockT, LoopT >::getParentLoop(), llvm::SCEV::getType(), llvm::RuntimeCheckingPtrGroup::High, High, HoistRuntimeChecks, llvm::Type::isIntegerTy(), llvm::ScalarEvolution::isKnownNonNegative(), LLVM_DEBUG, llvm::RuntimeCheckingPtrGroup::Low, llvm::Low, and llvm::RuntimeCheckingPtrGroup::NeedsFreeze.
Referenced by llvm::addRuntimeChecks(), and expandBounds().
◆ expandBounds() [2/2]
◆ getEstimatedTripCount()
◆ getExpectedExitLoopLatchBranch()
◆ hasHardUserWithinLoop()
◆ LLVMLoopDisableLICM
| const char* LLVMLoopDisableLICM = "llvm.licm.disable" | static |
|---|
◆ LLVMLoopDisableNonforced
| const char* LLVMLoopDisableNonforced = "llvm.loop.disable_nonforced" | static |
|---|