llvm::IVConditionInfo Struct Reference

Struct to hold information about a partially invariant condition. More...

#include "llvm/Transforms/Utils/LoopUtils.h"

Public Attributes
SmallVector< Instruction * >	InstToDuplicate
	Instructions that need to be duplicated and checked for the unswitching condition.
Constant *	KnownValue = nullptr
	Constant to indicate for which value the condition is invariant.
bool	PathIsNoop = true
	True if the partially invariant path is no-op (=does not have any side-effects and no loop value is used outside the loop).
BasicBlock *	ExitForPath = nullptr
	If the partially invariant path reaches a single exit block, ExitForPath is set to that block.

Detailed Description

Struct to hold information about a partially invariant condition.

Definition at line 556 of file LoopUtils.h.

Member Data Documentation

ExitForPath

BasicBlock* llvm::IVConditionInfo::ExitForPath = nullptr

If the partially invariant path reaches a single exit block, ExitForPath is set to that block.

Otherwise it is nullptr.

Definition at line 570 of file LoopUtils.h.

InstToDuplicate

SmallVector<Instruction *> llvm::IVConditionInfo::InstToDuplicate

Instructions that need to be duplicated and checked for the unswitching condition.

Definition at line 559 of file LoopUtils.h.

Referenced by unswitchBestCondition(), and unswitchNontrivialInvariants().

KnownValue

Constant* llvm::IVConditionInfo::KnownValue = nullptr

Constant to indicate for which value the condition is invariant.

Definition at line 562 of file LoopUtils.h.

Referenced by findBestNonTrivialUnswitchCandidate(), and unswitchNontrivialInvariants().

PathIsNoop

bool llvm::IVConditionInfo::PathIsNoop = true

True if the partially invariant path is no-op (=does not have any side-effects and no loop value is used outside the loop).

Definition at line 566 of file LoopUtils.h.

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The documentation for this struct was generated from the following file:

• include/llvm/Transforms/Utils/LoopUtils.h