diff --git a/include/llvm/Analysis/ScalarEvolutionExpressions.h b/include/llvm/Analysis/ScalarEvolutionExpressions.h index 0076e02ae1b..10fefa0272b 100644 --- a/include/llvm/Analysis/ScalarEvolutionExpressions.h +++ b/include/llvm/Analysis/ScalarEvolutionExpressions.h @@ -82,6 +82,16 @@ class Type; public: const SCEV *getOperand() const { return Op; } + const SCEV *getOperand(unsigned i) const { + assert(i == 0 && "Operand index out of range!"); + return Op; + } + using op_iterator = const SCEV *const *; + using op_range = iterator_range; + op_range operands() const { + return make_range(&Op, &Op + 1); + } + size_t getNumOperands() const { return 1; } Type *getType() const { return Ty; } /// Methods for support type inquiry through isa, cast, and dyn_cast: @@ -263,16 +273,28 @@ class Type; class SCEVUDivExpr : public SCEV { friend class ScalarEvolution; - const SCEV *LHS; - const SCEV *RHS; + std::array Operands; SCEVUDivExpr(const FoldingSetNodeIDRef ID, const SCEV *lhs, const SCEV *rhs) - : SCEV(ID, scUDivExpr, computeExpressionSize({lhs, rhs})), LHS(lhs), - RHS(rhs) {} + : SCEV(ID, scUDivExpr, computeExpressionSize({lhs, rhs})) { + Operands[0] = lhs; + Operands[1] = rhs; + } public: - const SCEV *getLHS() const { return LHS; } - const SCEV *getRHS() const { return RHS; } + const SCEV *getLHS() const { return Operands[0]; } + const SCEV *getRHS() const { return Operands[1]; } + size_t getNumOperands() const { return 2; } + const SCEV *getOperand(unsigned i) const { + assert((i == 0 || i == 1) && "Operand index out of range!"); + return i == 0 ? getLHS() : getRHS(); + } + + using op_iterator = const SCEV *const *; + using op_range = iterator_range; + op_range operands() const { + return make_range(Operands.begin(), Operands.end()); + } Type *getType() const { // In most cases the types of LHS and RHS will be the same, but in some