1 //===-------------------- IncrementalSourceMgr.cpp ------------------------===//
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 ///
9 /// \file
10 /// This file defines some implementations for IncrementalSourceMgr.
11 ///
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/MCA/IncrementalSourceMgr.h"
15 #ifndef NDEBUG
16 #include "llvm/Support/Format.h"
17 #endif
18 
19 using namespace llvm;
20 using namespace llvm::mca;
21 
22 void IncrementalSourceMgr::clear() {
23   Staging.clear();
24   InstStorage.clear();
25   TotalCounter = 0U;
26   EOS = false;
27 }
28 
29 void IncrementalSourceMgr::updateNext() {
30   ++TotalCounter;
31   Instruction *I = Staging.front();
32   Staging.pop_front();
33   I->reset();
34 
35   if (InstFreedCB)
36     InstFreedCB(I);
37 }
38 
39 #ifndef NDEBUG
40 void IncrementalSourceMgr::printStatistic(raw_ostream &OS) {
41   unsigned MaxInstStorageSize = InstStorage.size();
42   if (MaxInstStorageSize <= TotalCounter) {
43     auto Ratio = double(MaxInstStorageSize) / double(TotalCounter);
44     OS << "Cache ratio = " << MaxInstStorageSize << " / " << TotalCounter
45        << llvm::format(" (%.2f%%)", (1.0 - Ratio) * 100.0) << "\n";
46   } else {
47     OS << "Error: Number of created instructions "
48        << "are larger than the number of issued instructions\n";
49   }
50 }
51 #endif
52