[clang] [Clang][SYCL] Fix use of uninitalized memory in temp files (PR #114488)

[Nick Sarnie via cfe-commits]

https://github.com/sarnex created https://github.com/llvm/llvm-project/pull/114488

This fixes the current sanitizer CI failures. I manually confirmed the fix with a MemorySanitizer build.

>From 51227ad50bff12eff5a4f835686f13d2444848ea Mon Sep 17 00:00:00 2001
From: "Sarnie, Nick" <nick.sarnie at intel.com>
Date: Thu, 31 Oct 2024 16:22:33 -0700
Subject: [PATCH] [Clang][SYCL] Fix use of uninitalized memory in temp files

Signed-off-by: Sarnie, Nick <nick.sarnie at intel.com>
---
 clang/tools/clang-sycl-linker/ClangSYCLLinker.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/tools/clang-sycl-linker/ClangSYCLLinker.cpp b/clang/tools/clang-sycl-linker/ClangSYCLLinker.cpp
index 0639b95c76e218..076458a275d986 100644
--- a/clang/tools/clang-sycl-linker/ClangSYCLLinker.cpp
+++ b/clang/tools/clang-sycl-linker/ClangSYCLLinker.cpp
@@ -230,7 +230,7 @@ Expected<StringRef> linkDeviceInputFiles(ArrayRef<std::string> InputFiles,
   CmdArgs.push_back("--suppress-warnings");
   if (Error Err = executeCommands(*LLVMLinkPath, CmdArgs))
     return std::move(Err);
-  return *OutFileOrErr;
+  return Args.MakeArgString(*OutFileOrErr);
 }
 
 // This utility function is used to gather all SYCL device library files that