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//===- VPlanBuilder.h - A VPlan utility for constructing VPInstructions ---===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file provides a VPlan-based builder utility analogous to IRBuilder.
/// It provides an instruction-level API for generating VPInstructions while
/// abstracting away the Recipe manipulation details.
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_VECTORIZE_VPLAN_BUILDER_H
#define LLVM_TRANSFORMS_VECTORIZE_VPLAN_BUILDER_H
#include "VPlan.h"
namespace llvm {
class VPBuilder {
private:
VPBasicBlock *BB = nullptr;
VPBasicBlock::iterator InsertPt = VPBasicBlock::iterator();
VPInstruction *createInstruction(unsigned Opcode,
std::initializer_list<VPValue *> Operands) {
VPInstruction *Instr = new VPInstruction(Opcode, Operands);
BB->insert(Instr, InsertPt);
return Instr;
}
public:
VPBuilder() {}
/// \brief This specifies that created VPInstructions should be appended to
/// the end of the specified block.
void setInsertPoint(VPBasicBlock *TheBB) {
assert(TheBB && "Attempting to set a null insert point");
BB = TheBB;
InsertPt = BB->end();
}
VPValue *createNot(VPValue *Operand) {
return createInstruction(VPInstruction::Not, {Operand});
}
VPValue *createAnd(VPValue *LHS, VPValue *RHS) {
return createInstruction(Instruction::BinaryOps::And, {LHS, RHS});
}
VPValue *createOr(VPValue *LHS, VPValue *RHS) {
return createInstruction(Instruction::BinaryOps::Or, {LHS, RHS});
}
};
} // namespace llvm
#endif // LLVM_TRANSFORMS_VECTORIZE_VPLAN_BUILDER_H
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