diff --git a/rocclr/compiler/lib/backends/common/frontend_clang.cpp b/rocclr/compiler/lib/backends/common/frontend_clang.cpp
index ebe35cafb7..1c7aa02e52 100644
--- a/rocclr/compiler/lib/backends/common/frontend_clang.cpp
+++ b/rocclr/compiler/lib/backends/common/frontend_clang.cpp
@@ -197,7 +197,8 @@ int amdcl::ClangOCLFrontend::compileCommand(const std::string& src) {
   }
 
   if (Options()->oVariables->FEGenSPIRV) {
-    std::ostringstream ss;
+    std::string s;
+    llvm::raw_string_ostream ss(s);
     std::string err;
 
     if (Options()->getLLVMArgc()) {
diff --git a/rocclr/compiler/lib/backends/common/linker.cpp b/rocclr/compiler/lib/backends/common/linker.cpp
index b63db511ce..58cd27eb38 100644
--- a/rocclr/compiler/lib/backends/common/linker.cpp
+++ b/rocclr/compiler/lib/backends/common/linker.cpp
@@ -504,19 +504,23 @@ checkAndFixAclBinaryTarget(llvm::Module* module, aclBinary* elf,
 bool
 translateSpirv(llvm::Module *&M, const std::string &DumpSpirv,
     const std::string &DumpLlvm){
-  std::stringstream SS;
+  std::string S;
+  llvm::raw_string_ostream RSS(S);
   std::string Err;
-  if (!llvm::WriteSPIRV(M, SS, Err)) {
+  if (!llvm::WriteSPIRV(M, RSS, Err)) {
     llvm::errs() << "Fails to save LLVM as SPIR-V: " << Err << '\n';
     return false;
   }
 
   if (!DumpSpirv.empty()) {
     std::ofstream OFS(DumpSpirv, std::ios::binary);
-    OFS << SS.str();
+    OFS << RSS.str();
     OFS.close();
   }
 
+  RSS.flush();
+  std::stringstream SS(S);
+
   auto &Ctx = M->getContext();
   delete M;
   M = nullptr;
diff --git a/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp b/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
index ea525c8289..00fdf12e09 100644
--- a/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
+++ b/rocclr/compiler/lib/backends/common/v0_8/if_acl.cpp
@@ -504,12 +504,12 @@ LLVMToSPIRV(
   }
 
   std::string spvImg;
-  std::stringstream ss(spvImg);
+  llvm::raw_string_ostream ss(spvImg);
   bool success = llvm::WriteSPIRV(llMod, ss, errMsg);
 
   if (opt->isDumpFlagSet(amd::option::DUMP_SPIRV)) {
     std::ofstream ofs(opt->getDumpFileName(".spv"), std::ios::binary);
-    ofs << spvImg;
+    ofs << ss.str();
     ofs.close();
   }