1//===- InstructionCost.cpp --------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8/// \file
9/// This file includes the function definitions for the InstructionCost class
10/// that is used when calculating the cost of an instruction, or a group of
11/// instructions.
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/InstructionCost.h"
15#include "llvm/Support/Format.h"
16#include "llvm/Support/raw_ostream.h"
17
18using namespace llvm;
19
20void InstructionCost::print(raw_ostream &OS) const {
21 using UnsignedCostType = std::make_unsigned_t<CostType>;
22 if (isValid()) {
23 UnsignedCostType AbsValue =
24 (Value < 0) ? -((UnsignedCostType)Value) : ((UnsignedCostType)Value);
25 UnsignedCostType WholeNumber = AbsValue / CostGranularity;
26 UnsignedCostType Remainder = AbsValue % CostGranularity;
27 if (Value < 0)
28 OS << "-";
29 UnsignedCostType RemainderHundreds = (Remainder * 100) / CostGranularity;
30 while (RemainderHundreds % 10 == 0 && RemainderHundreds)
31 RemainderHundreds /= 10;
32 OS << WholeNumber;
33 if (RemainderHundreds)
34 OS << "." << RemainderHundreds;
35 } else {
36 OS << "Invalid";
37 }
38}
39