LLVM: llvm::Negator Class Reference

LLVM 22.0.0git

#include "Transforms/InstCombine/InstCombineInternal.h"

Static Public Member Functions
static Value *	Negate (bool LHSIsZero, bool IsNSW, Value *Root, InstCombinerImpl &IC)
	Attempt to negate `Root`.

Detailed Description

Definition at line 838 of file InstCombineInternal.h.

Member Function Documentation

◆ Negate()

Value * Negator::Negate	(	bool	LHSIsZero,
		bool	IsNSW,
		Value *	Root,
		InstCombinerImpl &	IC )

staticnodiscard

Attempt to negate Root.

Retuns nullptr if negation can't be performed, otherwise returns negated value.

Definition at line 545 of file InstCombineNegator.cpp.

References llvm::InstCombiner::Builder, llvm::IRBuilderBase::ClearInsertionPoint(), llvm::dbgs(), llvm::dwarf_linker::DebugLoc, llvm::Value::getContext(), llvm::InstCombiner::getDataLayout(), llvm::InstCombiner::getDominatorTree(), I, llvm::IRBuilderBase::Insert(), LLVM_DEBUG, N, NegatorEnabled, llvm::IRBuilderBase::SetCurrentDebugLocation(), and llvm::DebugCounter::shouldExecute().

Referenced by llvm::InstCombinerImpl::visitMul(), and llvm::InstCombinerImpl::visitSub().

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

lib/Transforms/InstCombine/InstCombineInternal.h
lib/Transforms/InstCombine/InstCombineNegator.cpp