source: icGREP/icgrep-devel/icgrep/lz4/LZ4Generator.h @ 6039

Last change on this file since 6039 was 6039, checked in by xwa163, 12 months ago

Init checkin for bitstream version of lz4d match copy

File size: 2.5 KB
Line 
1
2#ifndef ICGREP_LZ4GENERATOR_H
3#define ICGREP_LZ4GENERATOR_H
4#include <llvm/IR/Module.h>
5#include <llvm/IR/Function.h>
6
7#include <llvm/Support/Signals.h>
8#include <llvm/Support/ManagedStatic.h>
9#include <IR_Gen/idisa_target.h>
10
11#include <toolchain/toolchain.h>
12
13#include <toolchain/cpudriver.h>
14#include <string>
15
16namespace re { class CC; }
17
18
19typedef void (*MainFunctionType)(char * byte_data, size_t headerSize, size_t filesize, bool hasBlockChecksum);
20
21class LZ4Generator {
22
23public:
24    LZ4Generator();
25
26    MainFunctionType getMainFunc();
27
28    void generatePipeline(const std::string &outputFile);
29    void generateSwizzledPipeline(const std::string &outputFile);
30    void generateExtractOnlyPipeline(const std::string &outputFile);
31    void generateSwizzledExtractOnlyPipeline(const std::string &outputFile);
32    void generateExtractAndDepositOnlyPipeline(const std::string &outputFile);
33    void generateSwizzledExtractAndDepositOnlyPipeline(const std::string &outputFile);
34
35protected:
36    //// Protected Method
37    void generateMainFunc(const std::unique_ptr<kernel::KernelBuilder> & iBuilder);
38    // Pipeline
39    virtual void generateLoadByteStreamAndBitStream(const std::unique_ptr<kernel::KernelBuilder> & iBuilder);
40    virtual void generateExtractAndDepositMarkers(const std::unique_ptr<kernel::KernelBuilder> & iBuilder);
41    virtual std::pair<parabix::StreamSetBuffer*, parabix::StreamSetBuffer*> generateSwizzleExtractData(const std::unique_ptr<kernel::KernelBuilder> & iBuilder);
42    virtual parabix::StreamSetBuffer* generateBitStreamExtractData(const std::unique_ptr<kernel::KernelBuilder> & iBuilder);
43
44    // BufferSize related Helper Function
45    virtual int getInputBufferBlocks();
46    virtual int getDecompressedBufferBlocks();
47    int get4MbBufferBlocks();
48
49
50    //// Data Member
51    // Driver
52    ParabixDriver mPxDriver;
53
54    // Runtime Arguments
55    llvm::Value * mInputStream;
56    llvm::Value * mHeaderSize;
57    llvm::Value * mFileSize;
58    llvm::Value * mHasBlockChecksum;
59
60
61    // StreamSetBuffers
62    parabix::StreamSetBuffer * mCompressedByteStream;
63    parabix::StreamSetBuffer * mCompressedBasisBits;
64    parabix::StreamSetBuffer * mDeletionMarker; //TODO rename to ExtarctMarker
65    parabix::StreamSetBuffer * mDepositMarker;
66    parabix::StreamSetBuffer * mMatchOffsetMarker;
67
68    // M0CountMarker will not contain anything, it will only be used to pass producedItemCount and manage processedItemCount between different kernel
69    parabix::StreamSetBuffer * mM0Marker;
70};
71
72
73#endif //ICGREP_LZ4GENERATOR_H
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