¶bool decomposeBitTestICmp(
    llvm::Value* LHS,
    llvm::Value* RHS,
    CmpInst::Predicate& Pred,
    llvm::Value*& X,
    llvm::APInt& Mask,
    bool LookThroughTrunc = true)

Description

Decompose an icmp into the form ((X & Mask) pred 0) if possible. The returned predicate is either == or !=. Returns false if decomposition fails.

Declared at: llvm/include/llvm/Analysis/CmpInstAnalysis.h:64

Parameters

llvm::Value* LHS

llvm::Value* RHS

CmpInst::Predicate& Pred

llvm::Value*& X

llvm::APInt& Mask

bool LookThroughTrunc = true