diff --git a/0001-CMake-Don-t-prefer-python2.7.patch b/0001-CMake-Don-t-prefer-python2.7.patch
deleted file mode 100644
index ddea2997c6a3867e8904d290734a054f6e206613..0000000000000000000000000000000000000000
--- a/0001-CMake-Don-t-prefer-python2.7.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-From 1e0f1c5481a96d760f7840d4dde103353a0131f8 Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Thu, 30 Aug 2018 11:38:51 -0700
-Subject: [PATCH] CMake: Don't prefer python2.7
-
----
- CMakeLists.txt | 4 ----
- 1 file changed, 4 deletions(-)
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 31df640..2603f1c 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -613,10 +613,6 @@ message(STATUS "LLVM default target triple: ${LLVM_DEFAULT_TARGET_TRIPLE}")
- 
- include(HandleLLVMOptions)
- 
--# Verify that we can find a Python 2 interpreter.  Python 3 is unsupported.
--# FIXME: We should support systems with only Python 3, but that requires work
--# on LLDB.
--set(Python_ADDITIONAL_VERSIONS 2.7)
- include(FindPythonInterp)
- if( NOT PYTHONINTERP_FOUND )
-   message(FATAL_ERROR
--- 
-1.8.3.1
-
diff --git a/0001-CMake-Split-static-library-exports-into-their-own-ex.patch b/0001-CMake-Split-static-library-exports-into-their-own-ex.patch
deleted file mode 100644
index 903821e4eacf434a342021fc002c4393e05d097d..0000000000000000000000000000000000000000
--- a/0001-CMake-Split-static-library-exports-into-their-own-ex.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From f9e66a883e1fb748e6ac826fde188efaae249361 Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Sat, 29 Apr 2017 02:03:23 +0000
-Subject: [PATCH] CMake: Split static library exports into their own export
- file
-
-Summary:
-This is to better support distros which split the static libraries into
-their own package.
-
-The current problem is that any project the includes LLVMConfig.cmake
-will fail to configure unless the static libraries are installed.  This
-is because LLVMConfig.cmake includes LLVMExports.cmake, which throws an
-error if it can't find files linked to one of the exported targets.
-
-This patch resolves the problem by putting the static library targets
-into their own export file, LLVMStaticExports.cmake.  This file
-is optionally included by LLVMConfig.cmake, so distros can put this
-new file in their static library package to make  LLVMConfig.cmake
-no longer depend on these libraries when they are not installed.
-
-Reviewers: beanz, mgorny, chapuni
-
-Subscribers: llvm-commits
-
-Differential Revision: https://reviews.llvm.org/D32668
----
- cmake/modules/AddLLVM.cmake       | 6 +++++-
- cmake/modules/CMakeLists.txt      | 3 +++
- cmake/modules/LLVMConfig.cmake.in | 2 ++
- 3 files changed, 10 insertions(+), 1 deletion(-)
-
-diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
-index fd5627e..78f106f 100644
---- a/cmake/modules/AddLLVM.cmake
-+++ b/cmake/modules/AddLLVM.cmake
-@@ -635,7 +635,11 @@ macro(add_llvm_library name)
- 
-       if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
-           NOT LLVM_DISTRIBUTION_COMPONENTS)
--        set(export_to_llvmexports EXPORT LLVMExports)
-+        if (ARG_SHARED)
-+          set(export_to_llvmexports EXPORT LLVMExports)
-+        else()
-+          set(export_to_llvmexports EXPORT LLVMStaticExports)
-+        endif()
-         set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
-       endif()
- 
-diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
-index 6074e83..e9fcb11 100644
---- a/cmake/modules/CMakeLists.txt
-+++ b/cmake/modules/CMakeLists.txt
-@@ -91,6 +91,7 @@ set(LLVM_CONFIG_BINARY_DIR "\${LLVM_INSTALL_PREFIX}")
- set(LLVM_CONFIG_TOOLS_BINARY_DIR "\${LLVM_INSTALL_PREFIX}/bin")
- set(LLVM_CONFIG_EXPORTS_FILE "\${LLVM_CMAKE_DIR}/LLVMExports.cmake")
- set(LLVM_CONFIG_EXPORTS "${LLVM_EXPORTS}")
-+set(LLVM_CONFIG_STATIC_EXPORTS_FILE "\${LLVM_CMAKE_DIR}/LLVMStaticExports.cmake")
- configure_file(
-   LLVMConfig.cmake.in
-   ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/LLVMConfig.cmake
-@@ -107,6 +108,8 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-   if(llvm_has_exports)
-     install(EXPORT LLVMExports DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
-             COMPONENT cmake-exports)
-+    install(EXPORT LLVMStaticExports DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
-+            COMPONENT cmake-exports)
-   endif()
- 
-   install(FILES
-diff --git a/cmake/modules/LLVMConfig.cmake.in b/cmake/modules/LLVMConfig.cmake.in
-index 0772016..f471625 100644
---- a/cmake/modules/LLVMConfig.cmake.in
-+++ b/cmake/modules/LLVMConfig.cmake.in
-@@ -78,6 +78,8 @@ if(NOT TARGET LLVMSupport)
-   set(LLVM_EXPORTED_TARGETS "@LLVM_CONFIG_EXPORTS@")
-   include("@LLVM_CONFIG_EXPORTS_FILE@")
-   @llvm_config_include_buildtree_only_exports@
-+
-+  include("@LLVM_CONFIG_STATIC_EXPORTS_FILE@" OPTIONAL)
- endif()
- 
- # By creating intrinsics_gen here, subprojects that depend on LLVM's
--- 
-1.8.3.1
-
diff --git a/0001-Don-t-set-rpath-when-installing.patch b/0001-Don-t-set-rpath-when-installing.patch
deleted file mode 100644
index d92a387d6081a46bc54901d4aed5ac1ae31eae1e..0000000000000000000000000000000000000000
--- a/0001-Don-t-set-rpath-when-installing.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From e67ace2ecb42c24e124f1738dc67b22055a22500 Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Thu, 13 Sep 2018 10:10:08 -0700
-Subject: [PATCH] Don't set rpath when installing
-
----
- cmake/modules/AddLLVM.cmake | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
-index ce2057f..de309b5 100644
---- a/cmake/modules/AddLLVM.cmake
-+++ b/cmake/modules/AddLLVM.cmake
-@@ -1621,6 +1621,7 @@ function(llvm_codesign name)
- endfunction()
- 
- function(llvm_setup_rpath name)
-+  return()
-   if(CMAKE_INSTALL_RPATH)
-     return()
-   endif()
--- 
-1.8.3.1
-
diff --git a/0001-Filter-out-cxxflags-not-supported-by-clang.patch b/0001-Filter-out-cxxflags-not-supported-by-clang.patch
deleted file mode 100644
index 31b819bb137120726fc3edf561c04c06cc5adcac..0000000000000000000000000000000000000000
--- a/0001-Filter-out-cxxflags-not-supported-by-clang.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From 5f7fd92155db77c7608e3a07e5dcfad1ec7bd4e4 Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Fri, 16 Mar 2018 07:52:33 -0700
-Subject: [PATCH] Filter out cxxflags not supported by clang
-
----
- tools/llvm-config/CMakeLists.txt | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/tools/llvm-config/CMakeLists.txt b/tools/llvm-config/CMakeLists.txt
-index a0bd36c..4193b0e 100644
---- a/tools/llvm-config/CMakeLists.txt
-+++ b/tools/llvm-config/CMakeLists.txt
-@@ -34,7 +34,11 @@ set(LLVM_SRC_ROOT ${LLVM_MAIN_SRC_DIR})
- set(LLVM_OBJ_ROOT ${LLVM_BINARY_DIR})
- set(LLVM_CPPFLAGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
- set(LLVM_CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
-+STRING(REGEX REPLACE "-mcet" "" LLVM_CFLAGS ${LLVM_CFLAGS})
-+STRING(REGEX REPLACE "-fcf-protection" "" LLVM_CFLAGS ${LLVM_CFLAGS})
- set(LLVM_CXXFLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${COMPILE_FLAGS} ${LLVM_DEFINITIONS}")
-+STRING(REGEX REPLACE "-mcet" "" LLVM_CXXFLAGS ${LLVM_CXXFLAGS})
-+STRING(REGEX REPLACE "-fcf-protection" "" LLVM_CXXFLAGS ${LLVM_CXXFLAGS})
- set(LLVM_BUILD_SYSTEM cmake)
- set(LLVM_HAS_RTTI ${LLVM_CONFIG_HAS_RTTI})
- set(LLVM_DYLIB_VERSION "${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX}")
--- 
-1.8.3.1
-
diff --git a/0001-unittests-Don-t-install-TestPlugin.so.patch b/0001-unittests-Don-t-install-TestPlugin.so.patch
deleted file mode 100644
index f61403651d16b3e12d0d648fff401340b8213b1f..0000000000000000000000000000000000000000
--- a/0001-unittests-Don-t-install-TestPlugin.so.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-From cf1fb43186fd4d97ee2de0b222d44ecc500f82c7 Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Mon, 13 Aug 2018 12:22:28 -0700
-Subject: [PATCH] unittests: Don't install TestPlugin.so
-
-add_llvm_loadable_module adds an install target by default, but this
-module is only used for a unit test, so we don't need to instal it.
-
-This patch adds a NO_INSTALL option to add_llvm_loadable_module that
-can be used to disable installation of modules.
----
- cmake/modules/AddLLVM.cmake     | 13 ++++++++-----
- unittests/Passes/CMakeLists.txt |  2 +-
- 2 files changed, 9 insertions(+), 6 deletions(-)
-
-diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
-index 24ef5e4..1637ba6 100644
---- a/cmake/modules/AddLLVM.cmake
-+++ b/cmake/modules/AddLLVM.cmake
-@@ -671,7 +671,8 @@ macro(add_llvm_library name)
- endmacro(add_llvm_library name)
- 
- macro(add_llvm_loadable_module name)
--  llvm_add_library(${name} MODULE ${ARGN})
-+  cmake_parse_arguments(ARG "NO_INSTALL" "" "" ${ARGN})
-+  llvm_add_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
-   if(NOT TARGET ${name})
-     # Add empty "phony" target
-     add_custom_target(${name})
-@@ -693,10 +694,12 @@ macro(add_llvm_loadable_module name)
-           set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
-         endif()
- 
--        install(TARGETS ${name}
--                ${export_to_llvmexports}
--                LIBRARY DESTINATION ${dlldir}
--                ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
-+        if (NOT ARG_NO_INSTALL)
-+          install(TARGETS ${name}
-+                  ${export_to_llvmexports}
-+                  LIBRARY DESTINATION ${dlldir}
-+                  ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
-+        endif()
-       endif()
-       set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
-     endif()
-diff --git a/unittests/Passes/CMakeLists.txt b/unittests/Passes/CMakeLists.txt
-index d90df20..99390e6 100644
---- a/unittests/Passes/CMakeLists.txt
-+++ b/unittests/Passes/CMakeLists.txt
-@@ -14,7 +14,7 @@ add_llvm_unittest(PluginsTests
- export_executable_symbols(PluginsTests)
- 
- set(LLVM_LINK_COMPONENTS)
--add_llvm_loadable_module(TestPlugin
-+add_llvm_loadable_module(TestPlugin NO_INSTALL
-   TestPlugin.cpp
-   )
- 
--- 
-1.8.3.1
-
diff --git a/llvm.spec b/llvm.spec
index a6867fed48fd267e46f5d4f4b2059114ce0e7ff7..2e1b152ac99a36f9f976d727700b4cc55e72b050 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -1,20 +1,13 @@
 Name:		llvm
 Version:	7.0.0
-Release:        7
+Release:        8
 Summary:	The Low Level Virtual Machine
 License:	NCSA
 URL:		http://llvm.org
 Source0:	http://releases.llvm.org/7.0.0/%{name}-%{version}.src.tar.xz
-Source1:        run-lit-tests
-Patch0:         0001-CMake-Split-static-library-exports-into-their-own-ex.patch
-Patch1:         0001-Filter-out-cxxflags-not-supported-by-clang.patch
-Patch2:         0001-unittests-Don-t-install-TestPlugin.so.patch
-Patch3:         0001-CMake-Don-t-prefer-python2.7.patch
-Patch4:         0001-Don-t-set-rpath-when-installing.patch
 
 BuildRequires:  gcc gcc-c++ cmake ninja-build zlib-devel libffi-devel ncurses-devel libstdc++-static
-BuildRequires:	python3-sphinx multilib-rpm-config binutils-devel valgrind-devel
-BuildRequires:  libedit-devel python3-devel
+BuildRequires:	python3-sphinx binutils-devel valgrind-devel libedit-devel python3-devel
 
 %description
 LLVM is a compiler infrastructure designed for compile-time, link-time,
@@ -61,7 +54,6 @@ The %{name}-help package contains doc files for %{name}.
 %prep
 %autosetup -n %{name}-%{version}.src -p1
 pathfix.py -i %{__python3} -pn test/BugPoint/compile-custom.ll.py tools/opt-viewer/*.py
-sed -i 's~@TOOLS_DIR@~%{_libdir}/%{name}~' %{SOURCE1}
 
 %build
 mkdir -p _build
@@ -123,8 +115,6 @@ ninja -v install
 
 mv -v %{buildroot}%{_bindir}/llvm-config{,-%{__isa_bits}}
 
-%multilib_fix_c_header --file %{_includedir}/llvm/Config/llvm-config.h
-
 for f in lli-child-target llvm-isel-fuzzer llvm-opt-fuzzer yaml-bench; do
 install -m 0755 ./bin/$f %{buildroot}%{_libdir}/%{name}
 done
@@ -146,7 +136,6 @@ sed -i -e s~`pwd`/_build~%{_prefix}~g -e s~`pwd`~.~g %{lit_cfg} %{lit_cfg} %{lit
 sed -i 's~\(config.llvm_obj_root = \)"[^"]\+"~\1"%{_libdir}/%{name}"~' %{lit_unit_cfg}
 
 install -d %{buildroot}%{_libexecdir}/tests/llvm
-install -m 0755 %{SOURCE1} %{buildroot}%{_libexecdir}/tests/llvm
 
 install -d %{buildroot}%{_datadir}/llvm/
 tar -czf %{install_srcdir}/test.tar.gz test/
@@ -189,7 +178,6 @@ fi
 %{_libdir}/libLLVM.so
 %{_libdir}/*.a
 %{_datadir}/llvm/src/utils
-%{_libexecdir}/tests/llvm/
 %{_libdir}/%{name}/unittests/
 %{_datadir}/llvm/src/test.tar.gz
 
@@ -198,6 +186,12 @@ fi
 %{_mandir}/man1/*
 
 %changelog
+* Sat Jan 11 2020 openEuler Buildteam <buildteam@openeuler.org> - 7.0.0-8
+- Type: enhancement
+- ID: NA
+- SUG: NA
+- DESC: remove unnecessary files
+
 * Tue Dec 31 2019 openEuler Buildteam <buildteam@openeuler.org> -7.0.0-7
 - Type: enhancement
 - ID: NA
diff --git a/run-lit-tests b/run-lit-tests
deleted file mode 100644
index a0a5d5b3462411bbf3d3f22478ba91b169892955..0000000000000000000000000000000000000000
--- a/run-lit-tests
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/bash
-
-usage() {
-    echo "usage: `basename $0` [OPTIONS]"
-    echo "  --threads NUM       The number of threads to use for running tests."
-}
-
-threads_arg=''
-
-while [ $# -gt 0 ]; do
-    case $1 in
-        --threads)
-            shift
-            threads_arg="--threads $1"
-            ;;
-        * )
-            echo "unknown option: $1"
-            echo ""
-            usage
-            exit 1
-            ;;
-    esac
-    shift
-done
-
-set -xe
-
-TOOLS_DIR=@TOOLS_DIR@
-cd $(mktemp -d)
-ln -s /usr/include include
-tar -xzf /usr/share/llvm/src/test.tar.gz
-PATH=$PATH:$TOOLS_DIR lit -v -s $threads_arg test \
-	-DFileCheck=$TOOLS_DIR/FileCheck \
-	-Dcount=$TOOLS_DIR/count \
-	-Dnot=$TOOLS_DIR/not \
-	-Dlli-child-target=$TOOLS_DIR/lli-child-target \
-	-Dllvm-isel-fuzzer=$TOOLS_DIR/llvm-isel-fuzzer \
-	-Dllvm-opt-fuzzer=$TOOLS_DIR/llvm-opt-fuzzer \
-	-Dyaml-bench=$TOOLS_DIR/yaml-bench