CmpInstAnalysis.h File Reference

#include "llvm/ADT/APInt.h"
#include "llvm/IR/InstrTypes.h"

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Classes
struct	llvm::DecomposedBitTest
	Represents the operation icmp (X & Mask) pred C, where pred can only be eq or ne. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
unsigned	llvm::getICmpCode (CmpInst::Predicate Pred)
	Encode a icmp predicate into a three bit mask.
Constant *	llvm::getPredForICmpCode (unsigned Code, bool Sign, Type *OpTy, CmpInst::Predicate &Pred)
	This is the complement of getICmpCode.
bool	llvm::predicatesFoldable (CmpInst::Predicate P1, CmpInst::Predicate P2)
	Return true if both predicates match sign or if at least one of them is an equality comparison (which is signless).
unsigned	llvm::getFCmpCode (CmpInst::Predicate CC)
	Similar to getICmpCode but for FCmpInst.
Constant *	llvm::getPredForFCmpCode (unsigned Code, Type *OpTy, CmpInst::Predicate &Pred)
	This is the complement of getFCmpCode.
std::optional< DecomposedBitTest >	llvm::decomposeBitTestICmp (Value *LHS, Value *RHS, CmpInst::Predicate Pred, bool LookThroughTrunc=true, bool AllowNonZeroC=false)
	Decompose an icmp into the form ((X & Mask) pred C) if possible.