New formal release in https://www.7-zip.org/sdk.html is 18.05.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
---
 .../LzmaCustomDecompressLib/LZMA-SDK-README.txt    |   6 +-
 .../LzmaArchCustomDecompressLib.inf                |   6 +-
 .../LzmaCustomDecompressLib.inf                    |   6 +-
 .../LzmaCustomDecompressLib/LzmaDecompress.c       |   4 +-
 .../LzmaCustomDecompressLib/Sdk/C/7zTypes.h        | 220 ++++++++---
 .../LzmaCustomDecompressLib/Sdk/C/7zVersion.h      |  22 +-
 .../Library/LzmaCustomDecompressLib/Sdk/C/Bra86.c  |   4 +-
 .../LzmaCustomDecompressLib/Sdk/C/Compiler.h       |   3 +-
 .../LzmaCustomDecompressLib/Sdk/C/CpuArch.h        | 166 +++++++--
 .../Library/LzmaCustomDecompressLib/Sdk/C/LzFind.c | 163 +++++----
 .../Library/LzmaCustomDecompressLib/Sdk/C/LzFind.h |  12 +-
 .../LzmaCustomDecompressLib/Sdk/C/LzmaDec.c        | 401 +++++++++++++--------
 .../LzmaCustomDecompressLib/Sdk/C/LzmaDec.h        |  47 ++-
 .../Sdk/DOC/lzma-history.txt                       |  63 +++-
 .../LzmaCustomDecompressLib/Sdk/DOC/lzma-sdk.txt   |   2 +-
 15 files changed, 773 insertions(+), 352 deletions(-)

diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/LZMA-SDK-README.txt b/MdeModulePkg/Library/LzmaCustomDecompressLib/LZMA-SDK-README.txt
index 0824bd7..3f3895b 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/LZMA-SDK-README.txt
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/LZMA-SDK-README.txt
@@ -1,4 +1,4 @@
-LzmaCustomDecompressLib is based on the LZMA SDK 16.04.
-LZMA SDK 16.04 was placed in the public domain on
-2016-10-04.  It was released on the
+LzmaCustomDecompressLib is based on the LZMA SDK 18.05.
+LZMA SDK 18.05 was placed in the public domain on
+2018-04-30.  It was released on the
 http://www.7-zip.org/sdk.html website.
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaArchCustomDecompressLib.inf b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaArchCustomDecompressLib.inf
index ccd620b..82edae2 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaArchCustomDecompressLib.inf
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaArchCustomDecompressLib.inf
@@ -1,11 +1,11 @@
 ## @file
 #  LzmaArchCustomDecompressLib produces LZMA custom decompression algorithm with the converter for the different arch code.
 #
-#  It is based on the LZMA SDK 16.04
-#  LZMA SDK 16.04 was placed in the public domain on 2016-10-04.
+#  It is based on the LZMA SDK 18.05
+#  LZMA SDK 18.05 was placed in the public domain on 2018-04-30.
 #  It was released on the http://www.7-zip.org/sdk.html website.
 #
-#  Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
index 127c7de..80823de 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
@@ -1,11 +1,11 @@
 ## @file
 #  LzmaCustomDecompressLib produces LZMA custom decompression algorithm.
 #
-#  It is based on the LZMA SDK 16.04.
-#  LZMA SDK 16.04 was placed in the public domain on 2016-10-04.
+#  It is based on the LZMA SDK 18.05.
+#  LZMA SDK 18.05 was placed in the public domain on 2018-04-30.
 #  It was released on the http://www.7-zip.org/sdk.html website.
 #
-#  Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaDecompress.c b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaDecompress.c
index 501a15d..a873eda 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaDecompress.c
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaDecompress.c
@@ -36,7 +36,7 @@ typedef struct
 **/
 VOID *
 SzAlloc (
-  VOID *P,
+  CONST ISzAlloc *P,
   size_t Size
   )
 {
@@ -64,7 +64,7 @@ SzAlloc (
 **/
 VOID
 SzFree (
-  VOID *P,
+  CONST ISzAlloc *P,
   VOID *Address
   )
 {
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zTypes.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zTypes.h
index 838dac7..a5fcb50 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zTypes.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zTypes.h
@@ -1,5 +1,5 @@
 /* 7zTypes.h -- Basic types
-2013-11-12 : Igor Pavlov : Public domain */
+2017-07-17 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_TYPES_H
 #define __7Z_TYPES_H
@@ -46,13 +46,23 @@ EXTERN_C_BEGIN
 
 typedef int SRes;
 
+
 #ifdef _WIN32
+
 /* typedef DWORD WRes; */
 typedef unsigned WRes;
+#define MY_SRes_HRESULT_FROM_WRes(x) HRESULT_FROM_WIN32(x)
+
 #else
+
 typedef int WRes;
+#define MY__FACILITY_WIN32 7
+#define MY__FACILITY__WRes MY__FACILITY_WIN32
+#define MY_SRes_HRESULT_FROM_WRes(x) ((HRESULT)(x) <= 0 ? ((HRESULT)(x)) : ((HRESULT) (((x) & 0x0000FFFF) | (MY__FACILITY__WRes << 16) | 0x80000000)))
+
 #endif
 
+
 #ifndef RINOK
 #define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
 #endif
@@ -116,48 +126,72 @@ typedef int Bool;
 #define MY_NO_INLINE
 #endif
 
+#define MY_FORCE_INLINE __forceinline
+
 #define MY_CDECL __cdecl
 #define MY_FAST_CALL __fastcall
 
 #else
 
 #define MY_NO_INLINE
+#define MY_FORCE_INLINE
 #define MY_CDECL
 #define MY_FAST_CALL
 
+/* inline keyword : for C++ / C99 */
+
+/* GCC, clang: */
+/*
+#if defined (__GNUC__) && (__GNUC__ >= 4)
+#define MY_FORCE_INLINE __attribute__((always_inline))
+#define MY_NO_INLINE __attribute__((noinline))
+#endif
+*/
+
 #endif
 
 
 /* The following interfaces use first parameter as pointer to structure */
 
-typedef struct
+typedef struct IByteIn IByteIn;
+struct IByteIn
 {
-  Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */
-} IByteIn;
+  Byte (*Read)(const IByteIn *p); /* reads one byte, returns 0 in case of EOF or error */
+};
+#define IByteIn_Read(p) (p)->Read(p)
 
-typedef struct
+
+typedef struct IByteOut IByteOut;
+struct IByteOut
 {
-  void (*Write)(void *p, Byte b);
-} IByteOut;
+  void (*Write)(const IByteOut *p, Byte b);
+};
+#define IByteOut_Write(p, b) (p)->Write(p, b)
 
-typedef struct
+
+typedef struct ISeqInStream ISeqInStream;
+struct ISeqInStream
 {
-  SRes (*Read)(void *p, void *buf, size_t *size);
+  SRes (*Read)(const ISeqInStream *p, void *buf, size_t *size);
     /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
        (output(*size) < input(*size)) is allowed */
-} ISeqInStream;
+};
+#define ISeqInStream_Read(p, buf, size) (p)->Read(p, buf, size)
 
 /* it can return SZ_ERROR_INPUT_EOF */
-SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size);
-SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType);
-SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf);
+SRes SeqInStream_Read(const ISeqInStream *stream, void *buf, size_t size);
+SRes SeqInStream_Read2(const ISeqInStream *stream, void *buf, size_t size, SRes errorType);
+SRes SeqInStream_ReadByte(const ISeqInStream *stream, Byte *buf);
 
-typedef struct
+
+typedef struct ISeqOutStream ISeqOutStream;
+struct ISeqOutStream
 {
-  size_t (*Write)(void *p, const void *buf, size_t size);
+  size_t (*Write)(const ISeqOutStream *p, const void *buf, size_t size);
     /* Returns: result - the number of actually written bytes.
        (result < size) means error */
-} ISeqOutStream;
+};
+#define ISeqOutStream_Write(p, buf, size) (p)->Write(p, buf, size)
 
 typedef enum
 {
@@ -166,78 +200,162 @@ typedef enum
   SZ_SEEK_END = 2
 } ESzSeek;
 
-typedef struct
+
+typedef struct ISeekInStream ISeekInStream;
+struct ISeekInStream
 {
-  SRes (*Read)(void *p, void *buf, size_t *size);  /* same as ISeqInStream::Read */
-  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
-} ISeekInStream;
+  SRes (*Read)(const ISeekInStream *p, void *buf, size_t *size);  /* same as ISeqInStream::Read */
+  SRes (*Seek)(const ISeekInStream *p, Int64 *pos, ESzSeek origin);
+};
+#define ISeekInStream_Read(p, buf, size)   (p)->Read(p, buf, size)
+#define ISeekInStream_Seek(p, pos, origin) (p)->Seek(p, pos, origin)
 
-typedef struct
+
+typedef struct ILookInStream ILookInStream;
+struct ILookInStream
 {
-  SRes (*Look)(void *p, const void **buf, size_t *size);
+  SRes (*Look)(const ILookInStream *p, const void **buf, size_t *size);
     /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
        (output(*size) > input(*size)) is not allowed
        (output(*size) < input(*size)) is allowed */
-  SRes (*Skip)(void *p, size_t offset);
+  SRes (*Skip)(const ILookInStream *p, size_t offset);
     /* offset must be <= output(*size) of Look */
 
-  SRes (*Read)(void *p, void *buf, size_t *size);
+  SRes (*Read)(const ILookInStream *p, void *buf, size_t *size);
     /* reads directly (without buffer). It's same as ISeqInStream::Read */
-  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
-} ILookInStream;
+  SRes (*Seek)(const ILookInStream *p, Int64 *pos, ESzSeek origin);
+};
 
-SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size);
-SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset);
+#define ILookInStream_Look(p, buf, size)   (p)->Look(p, buf, size)
+#define ILookInStream_Skip(p, offset)      (p)->Skip(p, offset)
+#define ILookInStream_Read(p, buf, size)   (p)->Read(p, buf, size)
+#define ILookInStream_Seek(p, pos, origin) (p)->Seek(p, pos, origin)
+
+
+SRes LookInStream_LookRead(const ILookInStream *stream, void *buf, size_t *size);
+SRes LookInStream_SeekTo(const ILookInStream *stream, UInt64 offset);
 
 /* reads via ILookInStream::Read */
-SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType);
-SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size);
+SRes LookInStream_Read2(const ILookInStream *stream, void *buf, size_t size, SRes errorType);
+SRes LookInStream_Read(const ILookInStream *stream, void *buf, size_t size);
+
 
-#define LookToRead_BUF_SIZE (1 << 14)
 
 typedef struct
 {
-  ILookInStream s;
-  ISeekInStream *realStream;
+  ILookInStream vt;
+  const ISeekInStream *realStream;
+ 
   size_t pos;
-  size_t size;
-  Byte buf[LookToRead_BUF_SIZE];
-} CLookToRead;
+  size_t size; /* it's data size */
+  
+  /* the following variables must be set outside */
+  Byte *buf;
+  size_t bufSize;
+} CLookToRead2;
+
+void LookToRead2_CreateVTable(CLookToRead2 *p, int lookahead);
+
+#define LookToRead2_Init(p) { (p)->pos = (p)->size = 0; }
 
-void LookToRead_CreateVTable(CLookToRead *p, int lookahead);
-void LookToRead_Init(CLookToRead *p);
 
 typedef struct
 {
-  ISeqInStream s;
-  ILookInStream *realStream;
+  ISeqInStream vt;
+  const ILookInStream *realStream;
 } CSecToLook;
 
 void SecToLook_CreateVTable(CSecToLook *p);
 
+
+
 typedef struct
 {
-  ISeqInStream s;
-  ILookInStream *realStream;
+  ISeqInStream vt;
+  const ILookInStream *realStream;
 } CSecToRead;
 
 void SecToRead_CreateVTable(CSecToRead *p);
 
-typedef struct
+
+typedef struct ICompressProgress ICompressProgress;
+
+struct ICompressProgress
 {
-  SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
+  SRes (*Progress)(const ICompressProgress *p, UInt64 inSize, UInt64 outSize);
     /* Returns: result. (result != SZ_OK) means break.
        Value (UInt64)(Int64)-1 for size means unknown value. */
-} ICompressProgress;
+};
+#define ICompressProgress_Progress(p, inSize, outSize) (p)->Progress(p, inSize, outSize)
 
-typedef struct
+
+
+typedef struct ISzAlloc ISzAlloc;
+typedef const ISzAlloc * ISzAllocPtr;
+
+struct ISzAlloc
 {
-  void *(*Alloc)(void *p, size_t size);
-  void (*Free)(void *p, void *address); /* address can be 0 */
-} ISzAlloc;
+  void *(*Alloc)(ISzAllocPtr p, size_t size);
+  void (*Free)(ISzAllocPtr p, void *address); /* address can be 0 */
+};
+
+#define ISzAlloc_Alloc(p, size) (p)->Alloc(p, size)
+#define ISzAlloc_Free(p, a) (p)->Free(p, a)
+
+/* deprecated */
+#define IAlloc_Alloc(p, size) ISzAlloc_Alloc(p, size)
+#define IAlloc_Free(p, a) ISzAlloc_Free(p, a)
+
+
+
+
+
+#ifndef MY_offsetof
+  #ifdef offsetof
+    #define MY_offsetof(type, m) offsetof(type, m)
+    /*
+    #define MY_offsetof(type, m) FIELD_OFFSET(type, m)
+    */
+  #else
+    #define MY_offsetof(type, m) ((size_t)&(((type *)0)->m))
+  #endif
+#endif
+
+
+
+#ifndef MY_container_of
+
+/*
+#define MY_container_of(ptr, type, m) container_of(ptr, type, m)
+#define MY_container_of(ptr, type, m) CONTAINING_RECORD(ptr, type, m)
+#define MY_container_of(ptr, type, m) ((type *)((char *)(ptr) - offsetof(type, m)))
+#define MY_container_of(ptr, type, m) (&((type *)0)->m == (ptr), ((type *)(((char *)(ptr)) - MY_offsetof(type, m))))
+*/
+
+/*
+  GCC shows warning: "perhaps the 'offsetof' macro was used incorrectly"
+    GCC 3.4.4 : classes with constructor
+    GCC 4.8.1 : classes with non-public variable members"
+*/
+
+#define MY_container_of(ptr, type, m) ((type *)((char *)(1 ? (ptr) : &((type *)0)->m) - MY_offsetof(type, m)))
+
+
+#endif
+
+#define CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m) ((type *)(ptr))
+
+/*
+#define CONTAINER_FROM_VTBL(ptr, type, m) CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)
+*/
+#define CONTAINER_FROM_VTBL(ptr, type, m) MY_container_of(ptr, type, m)
+
+#define CONTAINER_FROM_VTBL_CLS(ptr, type, m) CONTAINER_FROM_VTBL_SIMPLE(ptr, type, m)
+/*
+#define CONTAINER_FROM_VTBL_CLS(ptr, type, m) CONTAINER_FROM_VTBL(ptr, type, m)
+*/
+
 
-#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
-#define IAlloc_Free(p, a) (p)->Free((p), a)
 
 #ifdef _WIN32
 
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zVersion.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zVersion.h
index acb67a9..ed3aa94 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zVersion.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/7zVersion.h
@@ -1,14 +1,21 @@
-#define MY_VER_MAJOR 16
-#define MY_VER_MINOR 04
+#define MY_VER_MAJOR 18
+#define MY_VER_MINOR 05
 #define MY_VER_BUILD 0
-#define MY_VERSION_NUMBERS "16.04"
-#define MY_VERSION "16.04"
-#define MY_DATE "2016-10-04"
+#define MY_VERSION_NUMBERS "18.05"
+#define MY_VERSION MY_VERSION_NUMBERS
+
+#ifdef MY_CPU_NAME
+  #define MY_VERSION_CPU MY_VERSION " (" MY_CPU_NAME ")"
+#else
+  #define MY_VERSION_CPU MY_VERSION
+#endif
+
+#define MY_DATE "2018-04-30"
 #undef MY_COPYRIGHT
 #undef MY_VERSION_COPYRIGHT_DATE
 #define MY_AUTHOR_NAME "Igor Pavlov"
 #define MY_COPYRIGHT_PD "Igor Pavlov : Public domain"
-#define MY_COPYRIGHT_CR "Copyright (c) 1999-2016 Igor Pavlov"
+#define MY_COPYRIGHT_CR "Copyright (c) 1999-2018 Igor Pavlov"
 
 #ifdef USE_COPYRIGHT_CR
   #define MY_COPYRIGHT MY_COPYRIGHT_CR
@@ -16,4 +23,5 @@
   #define MY_COPYRIGHT MY_COPYRIGHT_PD
 #endif
 
-#define MY_VERSION_COPYRIGHT_DATE MY_VERSION " : " MY_COPYRIGHT " : " MY_DATE
+#define MY_COPYRIGHT_DATE MY_COPYRIGHT " : " MY_DATE
+#define MY_VERSION_COPYRIGHT_DATE MY_VERSION_CPU " : " MY_COPYRIGHT " : " MY_DATE
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Bra86.c b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Bra86.c
index 8dd3ed4..a6463c6 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Bra86.c
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Bra86.c
@@ -1,5 +1,5 @@
 /* Bra86.c -- Converter for x86 code (BCJ)
-2013-11-12 : Igor Pavlov : Public domain */
+2017-04-03 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -37,7 +37,7 @@ SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding
       else
       {
         mask >>= (unsigned)d;
-        if (mask != 0 && (mask > 4 || mask == 3 || Test86MSByte(p[(mask >> 1) + 1])))
+        if (mask != 0 && (mask > 4 || mask == 3 || Test86MSByte(p[(size_t)(mask >> 1) + 1])))
         {
           mask = (mask >> 1) | 4;
           pos++;
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Compiler.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Compiler.h
index de8fab3..c788648 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Compiler.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/Compiler.h
@@ -1,5 +1,5 @@
 /* Compiler.h
-2015-08-02 : Igor Pavlov : Public domain */
+2017-04-03 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_COMPILER_H
 #define __7Z_COMPILER_H
@@ -21,6 +21,7 @@
     #pragma warning(disable : 4514) // unreferenced inline function has been removed
     #pragma warning(disable : 4702) // unreachable code
     #pragma warning(disable : 4710) // not inlined
+    #pragma warning(disable : 4714) // function marked as __forceinline not inlined
     #pragma warning(disable : 4786) // identifier was truncated to '255' characters in the debug information
   #endif
 
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/CpuArch.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/CpuArch.h
index ef6083c..7fb2728 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/CpuArch.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/CpuArch.h
@@ -1,5 +1,5 @@
 /* CpuArch.h -- CPU specific code
-2016-06-09: Igor Pavlov : Public domain */
+2017-09-04 : Igor Pavlov : Public domain */
 
 #ifndef __CPU_ARCH_H
 #define __CPU_ARCH_H
@@ -16,48 +16,122 @@ If MY_CPU_LE and MY_CPU_BE are not defined, we don't know about ENDIANNESS of pl
 MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
 */
 
-#if defined(_M_X64) \
-   || defined(_M_AMD64) \
-   || defined(__x86_64__) \
-   || defined(__AMD64__) \
-   || defined(__amd64__)
+#if  defined(_M_X64) \
+  || defined(_M_AMD64) \
+  || defined(__x86_64__) \
+  || defined(__AMD64__) \
+  || defined(__amd64__)
   #define MY_CPU_AMD64
+  #ifdef __ILP32__
+    #define MY_CPU_NAME "x32"
+  #else
+    #define MY_CPU_NAME "x64"
+  #endif
+  #define MY_CPU_64BIT
 #endif
 
-#if defined(MY_CPU_AMD64) \
-    || defined(_M_IA64) \
-    || defined(__AARCH64EL__) \
-    || defined(__AARCH64EB__)
+
+#if  defined(_M_IX86) \
+  || defined(__i386__)
+  #define MY_CPU_X86
+  #define MY_CPU_NAME "x86"
+  #define MY_CPU_32BIT
+#endif
+
+
+#if  defined(_M_ARM64) \
+  || defined(__AARCH64EL__) \
+  || defined(__AARCH64EB__) \
+  || defined(__aarch64__)
+  #define MY_CPU_ARM64
+  #define MY_CPU_NAME "arm64"
   #define MY_CPU_64BIT
 #endif
 
-#if defined(_M_IX86) || defined(__i386__)
-#define MY_CPU_X86
+
+#if  defined(_M_ARM) \
+  || defined(_M_ARM_NT) \
+  || defined(_M_ARMT) \
+  || defined(__arm__) \
+  || defined(__thumb__) \
+  || defined(__ARMEL__) \
+  || defined(__ARMEB__) \
+  || defined(__THUMBEL__) \
+  || defined(__THUMBEB__)
+  #define MY_CPU_ARM
+  #define MY_CPU_NAME "arm"
+  #define MY_CPU_32BIT
 #endif
 
-#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
-#define MY_CPU_X86_OR_AMD64
+
+#if  defined(_M_IA64) \
+  || defined(__ia64__)
+  #define MY_CPU_IA64
+  #define MY_CPU_NAME "ia64"
+  #define MY_CPU_64BIT
 #endif
 
-#if defined(MY_CPU_X86) \
-    || defined(_M_ARM) \
-    || defined(__ARMEL__) \
-    || defined(__THUMBEL__) \
-    || defined(__ARMEB__) \
-    || defined(__THUMBEB__)
+
+#if  defined(__mips64) \
+  || defined(__mips64__) \
+  || (defined(__mips) && (__mips == 64 || __mips == 4 || __mips == 3))
+  #define MY_CPU_NAME "mips64"
+  #define MY_CPU_64BIT
+#elif defined(__mips__)
+  #define MY_CPU_NAME "mips"
+  /* #define MY_CPU_32BIT */
+#endif
+
+
+#if  defined(__ppc64__) \
+  || defined(__powerpc64__)
+  #ifdef __ILP32__
+    #define MY_CPU_NAME "ppc64-32"
+  #else
+    #define MY_CPU_NAME "ppc64"
+  #endif
+  #define MY_CPU_64BIT
+#elif defined(__ppc__) \
+  || defined(__powerpc__)
+  #define MY_CPU_NAME "ppc"
   #define MY_CPU_32BIT
 #endif
 
-#if defined(_WIN32) && defined(_M_ARM)
-#define MY_CPU_ARM_LE
+
+#if  defined(__sparc64__)
+  #define MY_CPU_NAME "sparc64"
+  #define MY_CPU_64BIT
+#elif defined(__sparc__)
+  #define MY_CPU_NAME "sparc"
+  /* #define MY_CPU_32BIT */
 #endif
 
-#if defined(_WIN32) && defined(_M_IA64)
-#define MY_CPU_IA64_LE
+
+#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
+#define MY_CPU_X86_OR_AMD64
 #endif
 
+
+#ifdef _WIN32
+
+  #ifdef MY_CPU_ARM
+  #define MY_CPU_ARM_LE
+  #endif
+
+  #ifdef MY_CPU_ARM64
+  #define MY_CPU_ARM64_LE
+  #endif
+
+  #ifdef _M_IA64
+  #define MY_CPU_IA64_LE
+  #endif
+
+#endif
+
+
 #if defined(MY_CPU_X86_OR_AMD64) \
     || defined(MY_CPU_ARM_LE) \
+    || defined(MY_CPU_ARM64_LE) \
     || defined(MY_CPU_IA64_LE) \
     || defined(__LITTLE_ENDIAN__) \
     || defined(__ARMEL__) \
@@ -86,14 +160,37 @@ MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned mem
   #define MY_CPU_BE
 #endif
 
+
 #if defined(MY_CPU_LE) && defined(MY_CPU_BE)
-Stop_Compiling_Bad_Endian
+  #error Stop_Compiling_Bad_Endian
+#endif
+
+
+#if defined(MY_CPU_32BIT) && defined(MY_CPU_64BIT)
+  #error Stop_Compiling_Bad_32_64_BIT
 #endif
 
 
+#ifndef MY_CPU_NAME
+  #ifdef MY_CPU_LE
+    #define MY_CPU_NAME "LE"
+  #elif defined(MY_CPU_BE)
+    #define MY_CPU_NAME "BE"
+  #else
+    /*
+    #define MY_CPU_NAME ""
+    */
+  #endif
+#endif
+
+
+
+
+
 #ifdef MY_CPU_LE
   #if defined(MY_CPU_X86_OR_AMD64) \
-      /* || defined(__AARCH64EL__) */
+      || defined(MY_CPU_ARM64) \
+      || defined(__ARM_FEATURE_UNALIGNED)
     #define MY_CPU_LE_UNALIGN
   #endif
 #endif
@@ -139,6 +236,11 @@ Stop_Compiling_Bad_Endian
 
 #endif
 
+#ifdef __has_builtin
+  #define MY__has_builtin(x) __has_builtin(x)
+#else
+  #define MY__has_builtin(x) 0
+#endif
 
 #if defined(MY_CPU_LE_UNALIGN) && /* defined(_WIN64) && */ (_MSC_VER >= 1300)
 
@@ -146,15 +248,21 @@ Stop_Compiling_Bad_Endian
 
 #include <stdlib.h>
 
+#pragma intrinsic(_byteswap_ushort)
 #pragma intrinsic(_byteswap_ulong)
 #pragma intrinsic(_byteswap_uint64)
+
+/* #define GetBe16(p) _byteswap_ushort(*(const UInt16 *)(const Byte *)(p)) */
 #define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p))
 #define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p))
 
 #define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = _byteswap_ulong(v)
 
-#elif defined(MY_CPU_LE_UNALIGN) && defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+#elif defined(MY_CPU_LE_UNALIGN) && ( \
+       (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) \
+    || (defined(__clang__) && MY__has_builtin(__builtin_bswap16)) )
 
+/* #define GetBe16(p) __builtin_bswap16(*(const UInt16 *)(const Byte *)(p)) */
 #define GetBe32(p) __builtin_bswap32(*(const UInt32 *)(const Byte *)(p))
 #define GetBe64(p) __builtin_bswap64(*(const UInt64 *)(const Byte *)(p))
 
@@ -179,10 +287,14 @@ Stop_Compiling_Bad_Endian
 #endif
 
 
+#ifndef GetBe16
+
 #define GetBe16(p) ( (UInt16) ( \
     ((UInt16)((const Byte *)(p))[0] << 8) | \
              ((const Byte *)(p))[1] ))
 
+#endif
+
 
 
 #ifdef MY_CPU_X86_OR_AMD64
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.c b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.c
index a860e06..5128fc9 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.c
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.c
@@ -1,5 +1,5 @@
 /* LzFind.c -- Match finder for LZ algorithms
-2015-10-15 : Igor Pavlov : Public domain */
+2017-06-10 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -18,18 +18,18 @@
 
 #define kStartMaxLen 3
 
-static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
+static void LzInWindow_Free(CMatchFinder *p, ISzAllocPtr alloc)
 {
   if (!p->directInput)
   {
-    alloc->Free(alloc, p->bufferBase);
+    ISzAlloc_Free(alloc, p->bufferBase);
     p->bufferBase = NULL;
   }
 }
 
 /* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
 
-static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc)
+static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAllocPtr alloc)
 {
   UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
   if (p->directInput)
@@ -41,7 +41,7 @@ static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *a
   {
     LzInWindow_Free(p, alloc);
     p->blockSize = blockSize;
-    p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize);
+    p->bufferBase = (Byte *)ISzAlloc_Alloc(alloc, (size_t)blockSize);
   }
   return (p->bufferBase != NULL);
 }
@@ -83,7 +83,7 @@ static void MatchFinder_ReadBlock(CMatchFinder *p)
     if (size == 0)
       return;
 
-    p->result = p->stream->Read(p->stream, dest, &size);
+    p->result = ISeqInStream_Read(p->stream, dest, &size);
     if (p->result != SZ_OK)
       return;
     if (size == 0)
@@ -144,6 +144,7 @@ void MatchFinder_Construct(CMatchFinder *p)
   p->bufferBase = NULL;
   p->directInput = 0;
   p->hash = NULL;
+  p->expectedDataSize = (UInt64)(Int64)-1;
   MatchFinder_SetDefaultSettings(p);
 
   for (i = 0; i < 256; i++)
@@ -151,34 +152,34 @@ void MatchFinder_Construct(CMatchFinder *p)
     UInt32 r = i;
     unsigned j;
     for (j = 0; j < 8; j++)
-      r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
+      r = (r >> 1) ^ (kCrcPoly & ((UInt32)0 - (r & 1)));
     p->crc[i] = r;
   }
 }
 
-static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
+static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAllocPtr alloc)
 {
-  alloc->Free(alloc, p->hash);
+  ISzAlloc_Free(alloc, p->hash);
   p->hash = NULL;
 }
 
-void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
+void MatchFinder_Free(CMatchFinder *p, ISzAllocPtr alloc)
 {
   MatchFinder_FreeThisClassMemory(p, alloc);
   LzInWindow_Free(p, alloc);
 }
 
-static CLzRef* AllocRefs(size_t num, ISzAlloc *alloc)
+static CLzRef* AllocRefs(size_t num, ISzAllocPtr alloc)
 {
   size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
   if (sizeInBytes / sizeof(CLzRef) != num)
     return NULL;
-  return (CLzRef *)alloc->Alloc(alloc, sizeInBytes);
+  return (CLzRef *)ISzAlloc_Alloc(alloc, sizeInBytes);
 }
 
 int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
     UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
-    ISzAlloc *alloc)
+    ISzAllocPtr alloc)
 {
   UInt32 sizeReserv;
   
@@ -210,7 +211,11 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
         hs = (1 << 16) - 1;
       else
       {
-        hs = historySize - 1;
+        hs = historySize;
+        if (hs > p->expectedDataSize)
+          hs = (UInt32)p->expectedDataSize;
+        if (hs != 0)
+          hs--;
         hs |= (hs >> 1);
         hs |= (hs >> 2);
         hs |= (hs >> 4);
@@ -294,17 +299,33 @@ static void MatchFinder_SetLimits(CMatchFinder *p)
   p->posLimit = p->pos + limit;
 }
 
-void MatchFinder_Init_2(CMatchFinder *p, int readData)
+
+void MatchFinder_Init_LowHash(CMatchFinder *p)
+{
+  size_t i;
+  CLzRef *items = p->hash;
+  size_t numItems = p->fixedHashSize;
+  for (i = 0; i < numItems; i++)
+    items[i] = kEmptyHashValue;
+}
+
+
+void MatchFinder_Init_HighHash(CMatchFinder *p)
+{
+  size_t i;
+  CLzRef *items = p->hash + p->fixedHashSize;
+  size_t numItems = (size_t)p->hashMask + 1;
+  for (i = 0; i < numItems; i++)
+    items[i] = kEmptyHashValue;
+}
+
+
+void MatchFinder_Init_3(CMatchFinder *p, int readData)
 {
-  UInt32 i;
-  UInt32 *hash = p->hash;
-  UInt32 num = p->hashSizeSum;
-  for (i = 0; i < num; i++)
-    hash[i] = kEmptyHashValue;
-  
   p->cyclicBufferPos = 0;
   p->buffer = p->bufferBase;
-  p->pos = p->streamPos = p->cyclicBufferSize;
+  p->pos =
+  p->streamPos = p->cyclicBufferSize;
   p->result = SZ_OK;
   p->streamEndWasReached = 0;
   
@@ -314,10 +335,14 @@ void MatchFinder_Init_2(CMatchFinder *p, int readData)
   MatchFinder_SetLimits(p);
 }
 
+
 void MatchFinder_Init(CMatchFinder *p)
 {
-  MatchFinder_Init_2(p, True);
+  MatchFinder_Init_HighHash(p);
+  MatchFinder_Init_LowHash(p);
+  MatchFinder_Init_3(p, True);
 }
+
   
 static UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
 {
@@ -560,10 +585,10 @@ static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
   d2 = pos - hash[h2];
 
-  curMatch = hash[kFix3HashSize + hv];
+  curMatch = (hash + kFix3HashSize)[hv];
   
   hash[h2] = pos;
-  hash[kFix3HashSize + hv] = pos;
+  (hash + kFix3HashSize)[hv] = pos;
 
   maxLen = 2;
   offset = 0;
@@ -596,13 +621,13 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   pos = p->pos;
 
   d2 = pos - hash[                h2];
-  d3 = pos - hash[kFix3HashSize + h3];
+  d3 = pos - (hash + kFix3HashSize)[h3];
 
-  curMatch = hash[kFix4HashSize + hv];
+  curMatch = (hash + kFix4HashSize)[hv];
 
   hash[                h2] = pos;
-  hash[kFix3HashSize + h3] = pos;
-  hash[kFix4HashSize + hv] = pos;
+  (hash + kFix3HashSize)[h3] = pos;
+  (hash + kFix4HashSize)[hv] = pos;
 
   maxLen = 0;
   offset = 0;
@@ -617,7 +642,7 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (d2 != d3 && d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
   {
     maxLen = 3;
-    distances[offset + 1] = d3 - 1;
+    distances[(size_t)offset + 1] = d3 - 1;
     offset += 2;
     d2 = d3;
   }
@@ -625,7 +650,7 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
       SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
@@ -652,15 +677,15 @@ static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   pos = p->pos;
 
   d2 = pos - hash[                h2];
-  d3 = pos - hash[kFix3HashSize + h3];
-  d4 = pos - hash[kFix4HashSize + h4];
+  d3 = pos - (hash + kFix3HashSize)[h3];
+  d4 = pos - (hash + kFix4HashSize)[h4];
 
-  curMatch = hash[kFix5HashSize + hv];
+  curMatch = (hash + kFix5HashSize)[hv];
 
   hash[                h2] = pos;
-  hash[kFix3HashSize + h3] = pos;
-  hash[kFix4HashSize + h4] = pos;
-  hash[kFix5HashSize + hv] = pos;
+  (hash + kFix3HashSize)[h3] = pos;
+  (hash + kFix4HashSize)[h4] = pos;
+  (hash + kFix5HashSize)[hv] = pos;
 
   maxLen = 0;
   offset = 0;
@@ -693,7 +718,7 @@ static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
       && *(cur - d4 + 3) == *(cur + 3))
   {
     maxLen = 4;
-    distances[offset + 1] = d4 - 1;
+    distances[(size_t)offset + 1] = d4 - 1;
     offset += 2;
     d2 = d4;
   }
@@ -701,7 +726,7 @@ static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
       SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
@@ -728,13 +753,13 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   pos = p->pos;
   
   d2 = pos - hash[                h2];
-  d3 = pos - hash[kFix3HashSize + h3];
+  d3 = pos - (hash + kFix3HashSize)[h3];
   
-  curMatch = hash[kFix4HashSize + hv];
+  curMatch = (hash + kFix4HashSize)[hv];
 
   hash[                h2] = pos;
-  hash[kFix3HashSize + h3] = pos;
-  hash[kFix4HashSize + hv] = pos;
+  (hash + kFix3HashSize)[h3] = pos;
+  (hash + kFix4HashSize)[hv] = pos;
 
   maxLen = 0;
   offset = 0;
@@ -749,7 +774,7 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (d2 != d3 && d3 < p->cyclicBufferSize && *(cur - d3) == *cur)
   {
     maxLen = 3;
-    distances[offset + 1] = d3 - 1;
+    distances[(size_t)offset + 1] = d3 - 1;
     offset += 2;
     d2 = d3;
   }
@@ -757,7 +782,7 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
       p->son[p->cyclicBufferPos] = curMatch;
@@ -786,15 +811,15 @@ static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   pos = p->pos;
   
   d2 = pos - hash[                h2];
-  d3 = pos - hash[kFix3HashSize + h3];
-  d4 = pos - hash[kFix4HashSize + h4];
+  d3 = pos - (hash + kFix3HashSize)[h3];
+  d4 = pos - (hash + kFix4HashSize)[h4];
 
-  curMatch = hash[kFix5HashSize + hv];
+  curMatch = (hash + kFix5HashSize)[hv];
 
   hash[                h2] = pos;
-  hash[kFix3HashSize + h3] = pos;
-  hash[kFix4HashSize + h4] = pos;
-  hash[kFix5HashSize + hv] = pos;
+  (hash + kFix3HashSize)[h3] = pos;
+  (hash + kFix4HashSize)[h4] = pos;
+  (hash + kFix5HashSize)[hv] = pos;
 
   maxLen = 0;
   offset = 0;
@@ -827,7 +852,7 @@ static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
       && *(cur - d4 + 3) == *(cur + 3))
   {
     maxLen = 4;
-    distances[offset + 1] = d4 - 1;
+    distances[(size_t)offset + 1] = d4 - 1;
     offset += 2;
     d2 = d4;
   }
@@ -835,7 +860,7 @@ static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = maxLen;
     if (maxLen == lenLimit)
     {
       p->son[p->cyclicBufferPos] = curMatch;
@@ -899,9 +924,9 @@ static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     SKIP_HEADER(3)
     HASH3_CALC;
     hash = p->hash;
-    curMatch = hash[kFix3HashSize + hv];
+    curMatch = (hash + kFix3HashSize)[hv];
     hash[h2] =
-    hash[kFix3HashSize + hv] = p->pos;
+    (hash + kFix3HashSize)[hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -916,10 +941,10 @@ static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     SKIP_HEADER(4)
     HASH4_CALC;
     hash = p->hash;
-    curMatch = hash[kFix4HashSize + hv];
+    curMatch = (hash + kFix4HashSize)[hv];
     hash[                h2] =
-    hash[kFix3HashSize + h3] =
-    hash[kFix4HashSize + hv] = p->pos;
+    (hash + kFix3HashSize)[h3] =
+    (hash + kFix4HashSize)[hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -935,11 +960,11 @@ static void Bt5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     SKIP_HEADER(5)
     HASH5_CALC;
     hash = p->hash;
-    curMatch = hash[kFix5HashSize + hv];
+    curMatch = (hash + kFix5HashSize)[hv];
     hash[                h2] =
-    hash[kFix3HashSize + h3] =
-    hash[kFix4HashSize + h4] =
-    hash[kFix5HashSize + hv] = p->pos;
+    (hash + kFix3HashSize)[h3] =
+    (hash + kFix4HashSize)[h4] =
+    (hash + kFix5HashSize)[hv] = p->pos;
     SKIP_FOOTER
   }
   while (--num != 0);
@@ -955,10 +980,10 @@ static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     SKIP_HEADER(4)
     HASH4_CALC;
     hash = p->hash;
-    curMatch = hash[kFix4HashSize + hv];
+    curMatch = (hash + kFix4HashSize)[hv];
     hash[                h2] =
-    hash[kFix3HashSize + h3] =
-    hash[kFix4HashSize + hv] = p->pos;
+    (hash + kFix3HashSize)[h3] =
+    (hash + kFix4HashSize)[hv] = p->pos;
     p->son[p->cyclicBufferPos] = curMatch;
     MOVE_POS
   }
@@ -975,11 +1000,11 @@ static void Hc5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     SKIP_HEADER(5)
     HASH5_CALC;
     hash = p->hash;
-    curMatch = p->hash[kFix5HashSize + hv];
+    curMatch = hash + kFix5HashSize)[hv];
     hash[                h2] =
-    hash[kFix3HashSize + h3] =
-    hash[kFix4HashSize + h4] =
-    hash[kFix5HashSize + hv] = p->pos;
+    (hash + kFix3HashSize)[h3] =
+    (hash + kFix4HashSize)[h4] =
+    (hash + kFix5HashSize)[hv] = p->pos;
     p->son[p->cyclicBufferPos] = curMatch;
     MOVE_POS
   }
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.h
index 2ff6673..c77adde 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzFind.h
@@ -1,5 +1,5 @@
 /* LzFind.h -- Match finder for LZ algorithms
-2015-10-15 : Igor Pavlov : Public domain */
+2017-06-10 : Igor Pavlov : Public domain */
 
 #ifndef __LZ_FIND_H
 #define __LZ_FIND_H
@@ -47,6 +47,8 @@ typedef struct _CMatchFinder
   SRes result;
   UInt32 crc[256];
   size_t numRefs;
+
+  UInt64 expectedDataSize;
 } CMatchFinder;
 
 #define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
@@ -71,8 +73,8 @@ void MatchFinder_Construct(CMatchFinder *p);
 */
 int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
     UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
-    ISzAlloc *alloc);
-void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
+    ISzAllocPtr alloc);
+void MatchFinder_Free(CMatchFinder *p, ISzAllocPtr alloc);
 void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, size_t numItems);
 void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
 
@@ -103,7 +105,9 @@ typedef struct _IMatchFinder
 
 void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
 
-void MatchFinder_Init_2(CMatchFinder *p, int readData);
+void MatchFinder_Init_LowHash(CMatchFinder *p);
+void MatchFinder_Init_HighHash(CMatchFinder *p);
+void MatchFinder_Init_3(CMatchFinder *p, int readData);
 void MatchFinder_Init(CMatchFinder *p);
 
 UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.c b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.c
index 1c1f83b..6d8c6eb 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.c
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.c
@@ -1,8 +1,9 @@
 /* LzmaDec.c -- LZMA Decoder
-2016-05-16 : Igor Pavlov : Public domain */
+2018-02-28 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
+/* #include "CpuArch.h" */
 #include "LzmaDec.h"
 
 #ifndef EFIAPI
@@ -26,9 +27,16 @@
 #define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \
   { UPDATE_0(p); i = (i + i); A0; } else \
   { UPDATE_1(p); i = (i + i) + 1; A1; }
-#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;)
 
-#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); }
+#define TREE_GET_BIT(probs, i) { GET_BIT2(probs + i, i, ;, ;); }
+
+#define REV_BIT(p, i, A0, A1) IF_BIT_0(p + i) \
+  { UPDATE_0(p + i); A0; } else \
+  { UPDATE_1(p + i); A1; }
+#define REV_BIT_VAR(  p, i, m) REV_BIT(p, i, i += m; m += m, m += m; i += m; )
+#define REV_BIT_CONST(p, i, m) REV_BIT(p, i, i += m;       , i += m * 2; )
+#define REV_BIT_LAST( p, i, m) REV_BIT(p, i, i -= m        , ; )
+
 #define TREE_DECODE(probs, limit, i) \
   { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; }
 
@@ -48,12 +56,15 @@
   i -= 0x40; }
 #endif
 
-#define NORMAL_LITER_DEC GET_BIT(prob + symbol, symbol)
+#define NORMAL_LITER_DEC TREE_GET_BIT(prob, symbol)
 #define MATCHED_LITER_DEC \
-  matchByte <<= 1; \
-  bit = (matchByte & offs); \
-  probLit = prob + offs + bit + symbol; \
-  GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
+  matchByte += matchByte; \
+  bit = offs; \
+  offs &= matchByte; \
+  probLit = prob + (offs + bit + symbol); \
+  GET_BIT2(probLit, symbol, offs ^= bit; , ;)
+
+
 
 #define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); }
 
@@ -68,25 +79,28 @@
   { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; }
 
 
+#define REV_BIT_CHECK(p, i, m) IF_BIT_0_CHECK(p + i) \
+  { UPDATE_0_CHECK; i += m; m += m; } else \
+  { UPDATE_1_CHECK; m += m; i += m; }
+
+
 #define kNumPosBitsMax 4
 #define kNumPosStatesMax (1 << kNumPosBitsMax)
 
 #define kLenNumLowBits 3
 #define kLenNumLowSymbols (1 << kLenNumLowBits)
-#define kLenNumMidBits 3
-#define kLenNumMidSymbols (1 << kLenNumMidBits)
 #define kLenNumHighBits 8
 #define kLenNumHighSymbols (1 << kLenNumHighBits)
 
-#define LenChoice 0
-#define LenChoice2 (LenChoice + 1)
-#define LenLow (LenChoice2 + 1)
-#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
-#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
+#define LenLow 0
+#define LenHigh (LenLow + 2 * (kNumPosStatesMax << kLenNumLowBits))
 #define kNumLenProbs (LenHigh + kLenNumHighSymbols)
 
+#define LenChoice LenLow
+#define LenChoice2 (LenLow + (1 << kLenNumLowBits))
 
 #define kNumStates 12
+#define kNumStates2 16
 #define kNumLitStates 7
 
 #define kStartPosModelIndex 4
@@ -100,54 +114,117 @@
 #define kAlignTableSize (1 << kNumAlignBits)
 
 #define kMatchMinLen 2
-#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
+#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols * 2 + kLenNumHighSymbols)
 
-#define IsMatch 0
-#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
+/* External ASM code needs same CLzmaProb array layout. So don't change it. */
+
+/* (probs_1664) is faster and better for code size at some platforms */
+/*
+#ifdef MY_CPU_X86_OR_AMD64
+*/
+#define kStartOffset 1664
+#define GET_PROBS p->probs_1664
+/*
+#define GET_PROBS p->probs + kStartOffset
+#else
+#define kStartOffset 0
+#define GET_PROBS p->probs
+#endif
+*/
+
+#define SpecPos (-kStartOffset)
+#define IsRep0Long (SpecPos + kNumFullDistances)
+#define RepLenCoder (IsRep0Long + (kNumStates2 << kNumPosBitsMax))
+#define LenCoder (RepLenCoder + kNumLenProbs)
+#define IsMatch (LenCoder + kNumLenProbs)
+#define Align (IsMatch + (kNumStates2 << kNumPosBitsMax))
+#define IsRep (Align + kAlignTableSize)
 #define IsRepG0 (IsRep + kNumStates)
 #define IsRepG1 (IsRepG0 + kNumStates)
 #define IsRepG2 (IsRepG1 + kNumStates)
-#define IsRep0Long (IsRepG2 + kNumStates)
-#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
-#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
-#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
-#define LenCoder (Align + kAlignTableSize)
-#define RepLenCoder (LenCoder + kNumLenProbs)
-#define Literal (RepLenCoder + kNumLenProbs)
-
-#define LZMA_BASE_SIZE 1846
-#define LZMA_LIT_SIZE 0x300
+#define PosSlot (IsRepG2 + kNumStates)
+#define Literal (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
+#define NUM_BASE_PROBS (Literal + kStartOffset)
 
-#if Literal != LZMA_BASE_SIZE
-StopCompilingDueBUG
+#if Align != 0 && kStartOffset != 0
+  #error Stop_Compiling_Bad_LZMA_kAlign
 #endif
 
-#define LzmaProps_GetNumProbs(p) (Literal + ((UInt32)LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
+#if NUM_BASE_PROBS != 1984
+  #error Stop_Compiling_Bad_LZMA_PROBS
+#endif
+
+
+#define LZMA_LIT_SIZE 0x300
+
+#define LzmaProps_GetNumProbs(p) (NUM_BASE_PROBS + ((UInt32)LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
+
+
+#define CALC_POS_STATE(processedPos, pbMask) (((processedPos) & (pbMask)) << 4)
+#define COMBINED_PS_STATE (posState + state)
+#define GET_LEN_STATE (posState)
 
 #define LZMA_DIC_MIN (1 << 12)
 
-/* First LZMA-symbol is always decoded.
-And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization
+/*
+p->remainLen : shows status of LZMA decoder:
+    < kMatchSpecLenStart : normal remain
+    = kMatchSpecLenStart : finished
+    = kMatchSpecLenStart + 1 : need init range coder
+    = kMatchSpecLenStart + 2 : need init range coder and state
+*/
+
+/* ---------- LZMA_DECODE_REAL ---------- */
+/*
+LzmaDec_DecodeReal_3() can be implemented in external ASM file.
+3 - is the code compatibility version of that function for check at link time.
+*/
+
+#define LZMA_DECODE_REAL LzmaDec_DecodeReal_3
+
+/*
+LZMA_DECODE_REAL()
+In:
+  RangeCoder is normalized
+  if (p->dicPos == limit)
+  {
+    LzmaDec_TryDummy() was called before to exclude LITERAL and MATCH-REP cases.
+    So first symbol can be only MATCH-NON-REP. And if that MATCH-NON-REP symbol
+    is not END_OF_PAYALOAD_MARKER, then function returns error code.
+  }
+
+Processing:
+  first LZMA symbol will be decoded in any case
+  All checks for limits are at the end of main loop,
+  It will decode new LZMA-symbols while (p->buf < bufLimit && dicPos < limit),
+  RangeCoder is still without last normalization when (p->buf < bufLimit) is being checked.
+
 Out:
+  RangeCoder is normalized
   Result:
     SZ_OK - OK
     SZ_ERROR_DATA - Error
   p->remainLen:
     < kMatchSpecLenStart : normal remain
     = kMatchSpecLenStart : finished
-    = kMatchSpecLenStart + 1 : Flush marker (unused now)
-    = kMatchSpecLenStart + 2 : State Init Marker (unused now)
 */
 
-static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
-{
-  CLzmaProb *probs = p->probs;
 
-  unsigned state = p->state;
+#ifdef _LZMA_DEC_OPT
+
+int MY_FAST_CALL LZMA_DECODE_REAL(CLzmaDec *p, SizeT limit, const Byte *bufLimit);
+
+#else
+
+static
+int MY_FAST_CALL LZMA_DECODE_REAL(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
+{
+  CLzmaProb *probs = GET_PROBS;
+  unsigned state = (unsigned)p->state;
   UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];
   unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;
-  unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;
   unsigned lc = p->prop.lc;
+  unsigned lpMask = ((unsigned)0x100 << p->prop.lp) - ((unsigned)0x100 >> lc);
 
   Byte *dic = p->dic;
   SizeT dicBufSize = p->dicBufSize;
@@ -166,17 +243,16 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
     CLzmaProb *prob;
     UInt32 bound;
     unsigned ttt;
-    unsigned posState = processedPos & pbMask;
+    unsigned posState = CALC_POS_STATE(processedPos, pbMask);
 
-    prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
+    prob = probs + IsMatch + COMBINED_PS_STATE;
     IF_BIT_0(prob)
     {
       unsigned symbol;
       UPDATE_0(prob);
       prob = probs + Literal;
       if (processedPos != 0 || checkDicSize != 0)
-        prob += ((UInt32)LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +
-            (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
+        prob += (UInt32)3 * ((((processedPos << 8) + dic[(dicPos == 0 ? dicBufSize : dicPos) - 1]) & lpMask) << lc);
       processedPos++;
 
       if (state < kNumLitStates)
@@ -242,13 +318,16 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
       else
       {
         UPDATE_1(prob);
+        /*
+        // that case was checked before with kBadRepCode
         if (checkDicSize == 0 && processedPos == 0)
           return SZ_ERROR_DATA;
+        */
         prob = probs + IsRepG0 + state;
         IF_BIT_0(prob)
         {
           UPDATE_0(prob);
-          prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
+          prob = probs + IsRep0Long + COMBINED_PS_STATE;
           IF_BIT_0(prob)
           {
             UPDATE_0(prob);
@@ -301,7 +380,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         IF_BIT_0(probLen)
         {
           UPDATE_0(probLen);
-          probLen = prob + LenLow + (posState << kLenNumLowBits);
+          probLen = prob + LenLow + GET_LEN_STATE;
           offset = 0;
           lim = (1 << kLenNumLowBits);
         }
@@ -312,15 +391,15 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
           IF_BIT_0(probLen)
           {
             UPDATE_0(probLen);
-            probLen = prob + LenMid + (posState << kLenNumMidBits);
+            probLen = prob + LenLow + GET_LEN_STATE + (1 << kLenNumLowBits);
             offset = kLenNumLowSymbols;
-            lim = (1 << kLenNumMidBits);
+            lim = (1 << kLenNumLowBits);
           }
           else
           {
             UPDATE_1(probLen);
             probLen = prob + LenHigh;
-            offset = kLenNumLowSymbols + kLenNumMidSymbols;
+            offset = kLenNumLowSymbols * 2;
             lim = (1 << kLenNumHighBits);
           }
         }
@@ -333,7 +412,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         IF_BIT_0(probLen)
         {
           UPDATE_0(probLen);
-          probLen = prob + LenLow + (posState << kLenNumLowBits);
+          probLen = prob + LenLow + GET_LEN_STATE;
           len = 1;
           TREE_GET_BIT(probLen, len);
           TREE_GET_BIT(probLen, len);
@@ -347,7 +426,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
           IF_BIT_0(probLen)
           {
             UPDATE_0(probLen);
-            probLen = prob + LenMid + (posState << kLenNumMidBits);
+            probLen = prob + LenLow + GET_LEN_STATE + (1 << kLenNumLowBits);
             len = 1;
             TREE_GET_BIT(probLen, len);
             TREE_GET_BIT(probLen, len);
@@ -358,7 +437,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
             UPDATE_1(probLen);
             probLen = prob + LenHigh;
             TREE_DECODE(probLen, (1 << kLenNumHighBits), len);
-            len += kLenNumLowSymbols + kLenNumMidSymbols;
+            len += kLenNumLowSymbols * 2;
           }
         }
       }
@@ -378,16 +457,16 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
           if (posSlot < kEndPosModelIndex)
           {
             distance <<= numDirectBits;
-            prob = probs + SpecPos + distance - posSlot - 1;
+            prob = probs + SpecPos;
             {
-              UInt32 mask = 1;
-              unsigned i = 1;
+              UInt32 m = 1;
+              distance++;
               do
               {
-                GET_BIT2(prob + i, i, ; , distance |= mask);
-                mask <<= 1;
+                REV_BIT_VAR(prob, distance, m);
               }
-              while (--numDirectBits != 0);
+              while (--numDirectBits);
+              distance -= m;
             }
           }
           else
@@ -414,19 +493,20 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
               }
               */
             }
-            while (--numDirectBits != 0);
+            while (--numDirectBits);
             prob = probs + Align;
             distance <<= kNumAlignBits;
             {
               unsigned i = 1;
-              GET_BIT2(prob + i, i, ; , distance |= 1);
-              GET_BIT2(prob + i, i, ; , distance |= 2);
-              GET_BIT2(prob + i, i, ; , distance |= 4);
-              GET_BIT2(prob + i, i, ; , distance |= 8);
+              REV_BIT_CONST(prob, i, 1);
+              REV_BIT_CONST(prob, i, 2);
+              REV_BIT_CONST(prob, i, 4);
+              REV_BIT_LAST (prob, i, 8);
+              distance |= i;
             }
             if (distance == (UInt32)0xFFFFFFFF)
             {
-              len += kMatchSpecLenStart;
+              len = kMatchSpecLenStart;
               state -= kNumStates;
               break;
             }
@@ -437,20 +517,12 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
         rep2 = rep1;
         rep1 = rep0;
         rep0 = distance + 1;
-        if (checkDicSize == 0)
-        {
-          if (distance >= processedPos)
-          {
-            p->dicPos = dicPos;
-            return SZ_ERROR_DATA;
-          }
-        }
-        else if (distance >= checkDicSize)
+        state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
+        if (distance >= (checkDicSize == 0 ? processedPos: checkDicSize))
         {
           p->dicPos = dicPos;
           return SZ_ERROR_DATA;
         }
-        state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
       }
 
       len += kMatchMinLen;
@@ -513,6 +585,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
 
   return SZ_OK;
 }
+#endif
 
 static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
 {
@@ -521,7 +594,7 @@ static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
     Byte *dic = p->dic;
     SizeT dicPos = p->dicPos;
     SizeT dicBufSize = p->dicBufSize;
-    unsigned len = p->remainLen;
+    unsigned len = (unsigned)p->remainLen;
     SizeT rep0 = p->reps[0]; /* we use SizeT to avoid the BUG of VC14 for AMD64 */
     SizeT rem = limit - dicPos;
     if (rem < len)
@@ -542,6 +615,14 @@ static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
   }
 }
 
+
+#define kRange0 0xFFFFFFFF
+#define kBound0 ((kRange0 >> kNumBitModelTotalBits) << (kNumBitModelTotalBits - 1))
+#define kBadRepCode (kBound0 + (((kRange0 - kBound0) >> kNumBitModelTotalBits) << (kNumBitModelTotalBits - 1)))
+#if kBadRepCode != (0xC0000000 - 0x400)
+  #error Stop_Compiling_Bad_LZMA_Check
+#endif
+
 static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
 {
   do
@@ -552,9 +633,13 @@ static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte
       UInt32 rem = p->prop.dicSize - p->processedPos;
       if (limit - p->dicPos > rem)
         limit2 = p->dicPos + rem;
+
+      if (p->processedPos == 0)
+        if (p->code >= kBadRepCode)
+          return SZ_ERROR_DATA;
     }
-    
-    RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
+
+    RINOK(LZMA_DECODE_REAL(p, limit2, bufLimit));
     
     if (p->checkDicSize == 0 && p->processedPos >= p->prop.dicSize)
       p->checkDicSize = p->prop.dicSize;
@@ -563,9 +648,6 @@ static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte
   }
   while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);
 
-  if (p->remainLen > kMatchSpecLenStart)
-    p->remainLen = kMatchSpecLenStart;
-
   return 0;
 }
 
@@ -582,17 +664,17 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
   UInt32 range = p->range;
   UInt32 code = p->code;
   const Byte *bufLimit = buf + inSize;
-  const CLzmaProb *probs = p->probs;
-  unsigned state = p->state;
+  const CLzmaProb *probs = GET_PROBS;
+  unsigned state = (unsigned)p->state;
   ELzmaDummy res;
 
   {
     const CLzmaProb *prob;
     UInt32 bound;
     unsigned ttt;
-    unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
+    unsigned posState = CALC_POS_STATE(p->processedPos, (1 << p->prop.pb) - 1);
 
-    prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
+    prob = probs + IsMatch + COMBINED_PS_STATE;
     IF_BIT_0_CHECK(prob)
     {
       UPDATE_0_CHECK
@@ -620,10 +702,11 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
         {
           unsigned bit;
           const CLzmaProb *probLit;
-          matchByte <<= 1;
-          bit = (matchByte & offs);
-          probLit = prob + offs + bit + symbol;
-          GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)
+          matchByte += matchByte;
+          bit = offs;
+          offs &= matchByte;
+          probLit = prob + (offs + bit + symbol);
+          GET_BIT2_CHECK(probLit, symbol, offs ^= bit; , ; )
         }
         while (symbol < 0x100);
       }
@@ -650,7 +733,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
         IF_BIT_0_CHECK(prob)
         {
           UPDATE_0_CHECK;
-          prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
+          prob = probs + IsRep0Long + COMBINED_PS_STATE;
           IF_BIT_0_CHECK(prob)
           {
             UPDATE_0_CHECK;
@@ -693,7 +776,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
         IF_BIT_0_CHECK(probLen)
         {
           UPDATE_0_CHECK;
-          probLen = prob + LenLow + (posState << kLenNumLowBits);
+          probLen = prob + LenLow + GET_LEN_STATE;
           offset = 0;
           limit = 1 << kLenNumLowBits;
         }
@@ -704,15 +787,15 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
           IF_BIT_0_CHECK(probLen)
           {
             UPDATE_0_CHECK;
-            probLen = prob + LenMid + (posState << kLenNumMidBits);
+            probLen = prob + LenLow + GET_LEN_STATE + (1 << kLenNumLowBits);
             offset = kLenNumLowSymbols;
-            limit = 1 << kLenNumMidBits;
+            limit = 1 << kLenNumLowBits;
           }
           else
           {
             UPDATE_1_CHECK;
             probLen = prob + LenHigh;
-            offset = kLenNumLowSymbols + kLenNumMidSymbols;
+            offset = kLenNumLowSymbols * 2;
             limit = 1 << kLenNumHighBits;
           }
         }
@@ -724,7 +807,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
       {
         unsigned posSlot;
         prob = probs + PosSlot +
-            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
+            ((len < kNumLenToPosStates - 1 ? len : kNumLenToPosStates - 1) <<
             kNumPosSlotBits);
         TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
         if (posSlot >= kStartPosModelIndex)
@@ -735,7 +818,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
 
           if (posSlot < kEndPosModelIndex)
           {
-            prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1;
+            prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits);
           }
           else
           {
@@ -747,17 +830,18 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
               code -= range & (((code - range) >> 31) - 1);
               /* if (code >= range) code -= range; */
             }
-            while (--numDirectBits != 0);
+            while (--numDirectBits);
             prob = probs + Align;
             numDirectBits = kNumAlignBits;
           }
           {
             unsigned i = 1;
+            unsigned m = 1;
             do
             {
-              GET_BIT_CHECK(prob + i, i);
+              REV_BIT_CHECK(prob, i, m);
             }
-            while (--numDirectBits != 0);
+            while (--numDirectBits);
           }
         }
       }
@@ -770,18 +854,17 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
 
 void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
 {
-  p->needFlush = 1;
-  p->remainLen = 0;
+  p->remainLen = kMatchSpecLenStart + 1;
   p->tempBufSize = 0;
 
   if (initDic)
   {
     p->processedPos = 0;
     p->checkDicSize = 0;
-    p->needInitState = 1;
+    p->remainLen = kMatchSpecLenStart + 2;
   }
   if (initState)
-    p->needInitState = 1;
+    p->remainLen = kMatchSpecLenStart + 2;
 }
 
 void LzmaDec_Init(CLzmaDec *p)
@@ -790,53 +873,54 @@ void LzmaDec_Init(CLzmaDec *p)
   LzmaDec_InitDicAndState(p, True, True);
 }
 
-static void LzmaDec_InitStateReal(CLzmaDec *p)
-{
-  SizeT numProbs = LzmaProps_GetNumProbs(&p->prop);
-  SizeT i;
-  CLzmaProb *probs = p->probs;
-  for (i = 0; i < numProbs; i++)
-    probs[i] = kBitModelTotal >> 1;
-  p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;
-  p->state = 0;
-  p->needInitState = 0;
-}
 
 SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
     ELzmaFinishMode finishMode, ELzmaStatus *status)
 {
   SizeT inSize = *srcLen;
   (*srcLen) = 0;
-  LzmaDec_WriteRem(p, dicLimit);
   
   *status = LZMA_STATUS_NOT_SPECIFIED;
 
-  while (p->remainLen != kMatchSpecLenStart)
+  if (p->remainLen > kMatchSpecLenStart)
   {
-      int checkEndMarkNow;
+    for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
+      p->tempBuf[p->tempBufSize++] = *src++;
+    if (p->tempBufSize != 0 && p->tempBuf[0] != 0)
+      return SZ_ERROR_DATA;
+    if (p->tempBufSize < RC_INIT_SIZE)
+    {
+      *status = LZMA_STATUS_NEEDS_MORE_INPUT;
+      return SZ_OK;
+    }
+    p->code =
+        ((UInt32)p->tempBuf[1] << 24)
+      | ((UInt32)p->tempBuf[2] << 16)
+      | ((UInt32)p->tempBuf[3] << 8)
+      | ((UInt32)p->tempBuf[4]);
+    p->range = 0xFFFFFFFF;
+    p->tempBufSize = 0;
+
+    if (p->remainLen > kMatchSpecLenStart + 1)
+    {
+      SizeT numProbs = LzmaProps_GetNumProbs(&p->prop);
+      SizeT i;
+      CLzmaProb *probs = p->probs;
+      for (i = 0; i < numProbs; i++)
+        probs[i] = kBitModelTotal >> 1;
+      p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;
+      p->state = 0;
+    }
 
-      if (p->needFlush)
-      {
-        for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
-          p->tempBuf[p->tempBufSize++] = *src++;
-        if (p->tempBufSize < RC_INIT_SIZE)
-        {
-          *status = LZMA_STATUS_NEEDS_MORE_INPUT;
-          return SZ_OK;
-        }
-        if (p->tempBuf[0] != 0)
-          return SZ_ERROR_DATA;
-        p->code =
-              ((UInt32)p->tempBuf[1] << 24)
-            | ((UInt32)p->tempBuf[2] << 16)
-            | ((UInt32)p->tempBuf[3] << 8)
-            | ((UInt32)p->tempBuf[4]);
-        p->range = 0xFFFFFFFF;
-        p->needFlush = 0;
-        p->tempBufSize = 0;
-      }
+    p->remainLen = 0;
+  }
+
+  LzmaDec_WriteRem(p, dicLimit);
+
+  while (p->remainLen != kMatchSpecLenStart)
+  {
+      int checkEndMarkNow = 0;
 
-      checkEndMarkNow = 0;
       if (p->dicPos >= dicLimit)
       {
         if (p->remainLen == 0 && p->code == 0)
@@ -857,9 +941,6 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
         checkEndMarkNow = 1;
       }
 
-      if (p->needInitState)
-        LzmaDec_InitStateReal(p);
-  
       if (p->tempBufSize == 0)
       {
         SizeT processed;
@@ -932,11 +1013,14 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
         p->tempBufSize = 0;
       }
   }
-  if (p->code == 0)
-    *status = LZMA_STATUS_FINISHED_WITH_MARK;
-  return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
+  
+  if (p->code != 0)
+    return SZ_ERROR_DATA;
+  *status = LZMA_STATUS_FINISHED_WITH_MARK;
+  return SZ_OK;
 }
 
+
 SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
 {
   SizeT outSize = *destLen;
@@ -977,19 +1061,19 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *sr
   }
 }
 
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
+void LzmaDec_FreeProbs(CLzmaDec *p, ISzAllocPtr alloc)
 {
-  alloc->Free(alloc, p->probs);
+  ISzAlloc_Free(alloc, p->probs);
   p->probs = NULL;
 }
 
-static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc)
+static void LzmaDec_FreeDict(CLzmaDec *p, ISzAllocPtr alloc)
 {
-  alloc->Free(alloc, p->dic);
+  ISzAlloc_Free(alloc, p->dic);
   p->dic = NULL;
 }
 
-void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
+void LzmaDec_Free(CLzmaDec *p, ISzAllocPtr alloc)
 {
   LzmaDec_FreeProbs(p, alloc);
   LzmaDec_FreeDict(p, alloc);
@@ -1013,29 +1097,30 @@ SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
   if (d >= (9 * 5 * 5))
     return SZ_ERROR_UNSUPPORTED;
 
-  p->lc = d % 9;
+  p->lc = (Byte)(d % 9);
   d /= 9;
-  p->pb = d / 5;
-  p->lp = d % 5;
+  p->pb = (Byte)(d / 5);
+  p->lp = (Byte)(d % 5);
 
   return SZ_OK;
 }
 
-static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc)
+static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAllocPtr alloc)
 {
   UInt32 numProbs = LzmaProps_GetNumProbs(propNew);
   if (!p->probs || numProbs != p->numProbs)
   {
     LzmaDec_FreeProbs(p, alloc);
-    p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb));
-    p->numProbs = numProbs;
+    p->probs = (CLzmaProb *)ISzAlloc_Alloc(alloc, numProbs * sizeof(CLzmaProb));
     if (!p->probs)
       return SZ_ERROR_MEM;
+    p->probs_1664 = p->probs + 1664;
+    p->numProbs = numProbs;
   }
   return SZ_OK;
 }
 
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAllocPtr alloc)
 {
   CLzmaProps propNew;
   RINOK(LzmaProps_Decode(&propNew, props, propsSize));
@@ -1044,7 +1129,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, I
   return SZ_OK;
 }
 
-SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAllocPtr alloc)
 {
   CLzmaProps propNew;
   SizeT dicBufSize;
@@ -1064,7 +1149,7 @@ SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAll
   if (!p->dic || dicBufSize != p->dicBufSize)
   {
     LzmaDec_FreeDict(p, alloc);
-    p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);
+    p->dic = (Byte *)ISzAlloc_Alloc(alloc, dicBufSize);
     if (!p->dic)
     {
       LzmaDec_FreeProbs(p, alloc);
@@ -1078,7 +1163,7 @@ SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAll
 
 SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
     const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
-    ELzmaStatus *status, ISzAlloc *alloc)
+    ELzmaStatus *status, ISzAllocPtr alloc)
 {
   CLzmaDec p;
   SRes res;
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.h b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.h
index 2633abe..28ce60c 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.h
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/C/LzmaDec.h
@@ -1,5 +1,5 @@
 /* LzmaDec.h -- LZMA Decoder
-2013-01-18 : Igor Pavlov : Public domain */
+2018-04-21 : Igor Pavlov : Public domain */
 
 #ifndef __LZMA_DEC_H
 #define __LZMA_DEC_H
@@ -12,11 +12,13 @@ EXTERN_C_BEGIN
 /* _LZMA_PROB32 can increase the speed on some CPUs,
    but memory usage for CLzmaDec::probs will be doubled in that case */
 
+typedef
 #ifdef _LZMA_PROB32
-#define CLzmaProb UInt32
+  UInt32
 #else
-#define CLzmaProb UInt16
+  UInt16
 #endif
+  CLzmaProb;
 
 
 /* ---------- LZMA Properties ---------- */
@@ -25,7 +27,10 @@ EXTERN_C_BEGIN
 
 typedef struct _CLzmaProps
 {
-  unsigned lc, lp, pb;
+  Byte lc;
+  Byte lp;
+  Byte pb;
+  Byte _pad_;
   UInt32 dicSize;
 } CLzmaProps;
 
@@ -47,32 +52,34 @@ SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
 
 typedef struct
 {
+  /* Don't change this structure. ASM code can use it. */
   CLzmaProps prop;
   CLzmaProb *probs;
+  CLzmaProb *probs_1664;
   Byte *dic;
-  const Byte *buf;
-  UInt32 range, code;
-  SizeT dicPos;
   SizeT dicBufSize;
+  SizeT dicPos;
+  const Byte *buf;
+  UInt32 range;
+  UInt32 code;
   UInt32 processedPos;
   UInt32 checkDicSize;
-  unsigned state;
   UInt32 reps[4];
-  unsigned remainLen;
-  int needFlush;
-  int needInitState;
+  UInt32 state;
+  UInt32 remainLen;
+
   UInt32 numProbs;
   unsigned tempBufSize;
   Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
 } CLzmaDec;
 
-#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
+#define LzmaDec_Construct(p) { (p)->dic = NULL; (p)->probs = NULL; }
 
 void LzmaDec_Init(CLzmaDec *p);
 
 /* There are two types of LZMA streams:
-     0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
-     1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
+     - Stream with end mark. That end mark adds about 6 bytes to compressed size.
+     - Stream without end mark. You must know exact uncompressed size to decompress such stream. */
 
 typedef enum
 {
@@ -129,11 +136,11 @@ LzmaDec_Allocate* can return:
   SZ_ERROR_UNSUPPORTED - Unsupported properties
 */
    
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
+SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAllocPtr alloc);
+void LzmaDec_FreeProbs(CLzmaDec *p, ISzAllocPtr alloc);
 
-SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
+SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAllocPtr alloc);
+void LzmaDec_Free(CLzmaDec *p, ISzAllocPtr alloc);
 
 /* ---------- Dictionary Interface ---------- */
 
@@ -142,7 +149,7 @@ void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
    You must work with CLzmaDec variables directly in this interface.
 
    STEPS:
-     LzmaDec_Constr()
+     LzmaDec_Construct()
      LzmaDec_Allocate()
      for (each new stream)
      {
@@ -220,7 +227,7 @@ Returns:
 
 SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
     const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
-    ELzmaStatus *status, ISzAlloc *alloc);
+    ELzmaStatus *status, ISzAllocPtr alloc);
 
 EXTERN_C_END
 
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-history.txt b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-history.txt
index 7aaeb07..c53e3bd 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-history.txt
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-history.txt
@@ -1,6 +1,67 @@
 HISTORY of the LZMA SDK
 -----------------------
 
+18.05          2018-04-30
+-------------------------
+- The speed for LZMA/LZMA2 compressing was increased 
+    by 8% for fastest/fast compression levels and 
+    by 3% for normal/maximum compression levels.
+- Previous versions of 7-Zip could work incorrectly in "Large memory pages" mode in
+  Windows 10 because of some BUG with "Large Pages" in Windows 10. 
+  Now 7-Zip doesn't use "Large Pages" on Windows 10 up to revision 1709 (16299).
+- The BUG was fixed in Lzma2Enc.c
+    Lzma2Enc_Encode2() function worked incorretly,
+      if (inStream == NULL) and the number of block threads is more than 1.
+
+
+18.03 beta     2018-03-04
+-------------------------
+- Asm\x86\LzmaDecOpt.asm: new optimized LZMA decoder written in asm 
+  for x64 with about 30% higher speed than main version of LZMA decoder written in C.
+- The speed for single-thread LZMA/LZMA2 decoder written in C was increased by 3%.
+- 7-Zip now can use multi-threading for 7z/LZMA2 decoding,
+  if there are multiple independent data chunks in LZMA2 stream.
+- 7-Zip now can use multi-threading for xz decoding,
+  if there are multiple blocks in xz stream.
+
+
+18.01          2019-01-28
+-------------------------
+- The BUG in 17.01 - 18.00 beta was fixed:
+  XzDec.c : random block unpacking and XzUnpacker_IsBlockFinished()
+  didn't work correctly for xz archives without checksum (CRC).
+
+
+18.00 beta     2019-01-10
+-------------------------
+- The BUG in xz encoder was fixed:
+  There was memory leak of 16 KB for each file compressed with 
+  xz compression method, if additional filter was used.
+
+
+17.01 beta     2017-08-28
+-------------------------
+- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
+  7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
+  CPU utilization was slightly improved.
+- 7-zip now creates multi-block xz archives by default. Block size can be 
+  specified with -ms[Size]{m|g} switch.
+- xz decoder now can unpack random block from multi-block xz archives.
+- 7-Zip command line: @listfile now doesn't work after -- switch.
+  Use -i@listfile before -- switch instead.
+- The BUGs were fixed:
+  7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
+
+
+17.00 beta     2017-04-29
+-------------------------
+- NewHandler.h / NewHandler.cpp: 
+    now it redefines operator new() only for old MSVC compilers (_MSC_VER < 1900).
+- C/7zTypes.h : the names of variables in interface structures were changed (vt).
+- Some bugs were fixed. 7-Zip could crash in some cases.
+- Some internal changes in code.
+
+
 16.04          2016-10-04
 -------------------------
 - The bug was fixed in DllSecur.c.
@@ -168,7 +229,7 @@ HISTORY of the LZMA SDK
 
 4.57           2007-12-12
 -------------------------
-- Speed optimizations in C++ LZMA Decoder. 
+- Speed optimizations in Ñ++ LZMA Decoder. 
 - Small changes for more compatibility with some C/C++ compilers.
 
 
diff --git a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-sdk.txt b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-sdk.txt
index 86fef24..01521e9 100644
--- a/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-sdk.txt
+++ b/MdeModulePkg/Library/LzmaCustomDecompressLib/Sdk/DOC/lzma-sdk.txt
@@ -1,4 +1,4 @@
-LZMA SDK 16.04
+LZMA SDK 18.05
 --------------
 
 LZMA SDK provides the documentation, samples, header files,
-- 
2.10.0.windows.1