[clang] [clang][modules-driver] Avoid copy of -cc1 command & const correctness (NFC) (PR #190142)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Naveen Seth Hanig (naveen-seth)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/190142.diff


1 Files Affected:

- (modified) clang/lib/Driver/ModulesDriver.cpp (+4-4) 


``````````diff
diff --git a/clang/lib/Driver/ModulesDriver.cpp b/clang/lib/Driver/ModulesDriver.cpp
index bbad357be0aa1..f19cd74d83289 100644
--- a/clang/lib/Driver/ModulesDriver.cpp
+++ b/clang/lib/Driver/ModulesDriver.cpp
@@ -1231,11 +1231,11 @@ createClangModulePrecompileJob(Compilation &C, const Command &ImportingJob,
   Action *PA = C.MakeAction<PrecompileJobAction>(IA, types::ID::TY_ModuleFile);
   PA->propagateOffloadInfo(&ImportingJob.getSource());
 
-  auto &TC = ImportingJob.getCreator().getToolChain();
-  auto &TCArgs = C.getArgsForToolChain(&TC, PA->getOffloadingArch(),
-                                       PA->getOffloadingDeviceKind());
+  const auto &TC = ImportingJob.getCreator().getToolChain();
+  const auto &TCArgs = C.getArgsForToolChain(
+      &TC, PA->getOffloadingArch(), PA->getOffloadingDeviceKind());
 
-  auto BuildArgs = MD.getBuildArguments();
+  const auto &BuildArgs = MD.getBuildArguments();
   ArgStringList JobArgs;
   JobArgs.reserve(BuildArgs.size());
   for (const auto &Arg : BuildArgs)

``````````

</details>


https://github.com/llvm/llvm-project/pull/190142