diff --git a/0008-Propeller-bugfix-for-MachineBasicBlock-hash-set.patch b/0008-Propeller-bugfix-for-MachineBasicBlock-hash-set.patch
new file mode 100644
index 0000000000000000000000000000000000000000..e91b8c404a7e25ca4652e25850c16194218cd0f3
--- /dev/null
+++ b/0008-Propeller-bugfix-for-MachineBasicBlock-hash-set.patch
@@ -0,0 +1,15 @@
+diff --git a/llvm/lib/CodeGen/BasicBlockSections.cpp b/llvm/lib/CodeGen/BasicBlockSections.cpp
+index 9b985f9f0aff..6e58c8fb2946 100644
+--- a/llvm/lib/CodeGen/BasicBlockSections.cpp
++++ b/llvm/lib/CodeGen/BasicBlockSections.cpp
+@@ -319,7 +319,8 @@ void computeBBHash(MachineFunction &MF) {
+         }
+       }
+     }
+-    MBB.setHash(Hash);
++    if (MBB.getBBID())
++      MBB.setHash(Hash);
+   }
+ }
+ 
+--
\ No newline at end of file
diff --git a/llvm-for-oE-17.0.6-2506.0.4.tar.gz b/llvm-for-oE-17.0.6-2509.0.1.tar.gz
similarity index 32%
rename from llvm-for-oE-17.0.6-2506.0.4.tar.gz
rename to llvm-for-oE-17.0.6-2509.0.1.tar.gz
index 171f896de39b0f6dac45da2dda89362360f79b53..df9aef5c5ba96d6b6c1b13397801837eac539d25 100644
--- a/llvm-for-oE-17.0.6-2506.0.4.tar.gz
+++ b/llvm-for-oE-17.0.6-2509.0.1.tar.gz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:db05405706279885e543dd562d7f2887fd433eb10dae819811df7d588e8548b3
-size 212541296
+oid sha256:3437c2ca8c6e2fc0083e3db05e884bd5cd2c124ba51b902a8cb2e5bb13312a04
+size 212672038
diff --git a/llvm.spec b/llvm.spec
index 6df284239ef09a7f420744d766f51c7ad8cf2f47..94110be7e21e974f07eee54745c242b18fbeb58d 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -6,6 +6,10 @@
 
 %global os_version %{lua: print(tonumber(rpm.expand("%{dist}"):match("oe(%d+)") or 9999))}
 
+%if %{os_version} == 1
+%global os_version 9999
+%endif
+
 # Build sys_llvm packages or compat packages
 %bcond_without sys_llvm
 %bcond_without check
@@ -28,7 +32,7 @@
 
 %undefine __cmake_in_source_build
 
-%global src_tarball llvm-for-oE-17.0.6-2506.0.4
+%global src_tarball llvm-for-oE-17.0.6-2509.0.1
 %global src_tarball_dir llvm-project-%{src_tarball}
 
 #region LLVM globals
@@ -100,8 +104,6 @@
 
 %global pkg_name_compiler_rt %{?scl_prefix}compiler-rt
 
-%global optflags %(echo %{optflags} | sed 's/-fgcc-compatible//')
-%global optflags %(echo %{optflags} | sed 's/-specs=\/usr\/lib\/rpm\/generic-hardened-cc1//')
 %ifnarch x86_64
 %global optflags %(echo %{optflags} | sed 's/-fstack-clash-protection//')
 # may affect cmake check for fpic
@@ -152,7 +154,7 @@ Name:		  llvm
 Name:		  llvm-toolset-%{maj_ver}
 %endif
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
-Release:	47
+Release:	49
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -176,6 +178,7 @@ Patch0005: 0005-Fix-for-building-autotuner-with-mlir.patch
 %endif
 Patch0006: 0006-backport-mlir-Make-it-possible-to-build-a-DenseResou.patch
 Patch0007: 0007-backport-mlir-Add-Python-bindings-for-DenseResourceE.patch
+Patch0008: 0008-Propeller-bugfix-for-MachineBasicBlock-hash-set.patch
 
 BuildRequires:	gcc
 BuildRequires:	gcc-c++
@@ -800,9 +803,6 @@ Documentation for LLVM libunwind
 %global runtimes %{runtimes};libcxx;libcxxabi;libunwind
 %endif
 
-# Copy CFLAGS into ASMFLAGS, so -fcf-protection is used when compiling assembly files.
-export ASMFLAGS="%{build_cflags}"
-
 # We set CLANG_DEFAULT_PIE_ON_LINUX=OFF and PPC_LINUX_DEFAULT_IEEELONGDOUBLE=ON to match the
 # defaults used by Fedora's GCC.
 
@@ -1018,6 +1018,11 @@ export ASMFLAGS="%{build_cflags}"
 extra_cmake_args=''
 #endregion cmake options
 
+# set flags for build
+export CFLAGS="%{build_cflags}"
+export CXXFLAGS="%{build_cxxflags}"
+export ASMFLAGS="%{build_cflags}"
+
 %if %{with ACPO}
   echo "enable ACPO"
   export CFLAGS="-Wp,-DENABLE_ACPO ${CFLAGS}"
@@ -1662,7 +1667,7 @@ reset_test_opts
 #region Test LLVM
 reset_test_opts
 # Xfail testing of update utility tools
-export LIT_XFAIL="tools/UpdateTestChecks"
+export LIT_XFAIL="tools/UpdateTestChecks;CodeGen/Hexagon/loop-prefetch.ll"
 %build_tool %cmake_target_opts check-llvm
 #endregion Test LLVM
 
@@ -2881,6 +2886,13 @@ fi
 #endregion files
 
 %changelog
+* Wed Aug 27 2025 liyunfei <liyunfei33@huawei.com> - 17.0.6-49
+- update to llvm-for-oe-17.0.6-2509.0.1
+- release-note https://gitee.com/openeuler/llvm-project/releases/tag/llvm-for-oE-17.0.6-2509.0.1
+
+* Wed Aug 20 2025 liyunfei <liyunfei33@huawei.com> - 17.0.6-48
+- fix missing hardening compiler options
+
 * Tue Jul 01 2025 liyunfei <liyunfei33@huawei.com> - 17.0.6-47
 - fix for mlir build failure after numpy 2.3.0