[clang] clang: Remove unnecessary convertion from StringRef to std::string (PR #196119)

[Matt Arsenault via cfe-commits]

https://github.com/arsenm created https://github.com/llvm/llvm-project/pull/196119

None

>From 28f3bfcaa21b48665252968cf86b5ecca6e0a343 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Wed, 6 May 2026 18:03:34 +0100
Subject: [PATCH] clang: Remove unnecessary convertion from StringRef to
 std::string

---
 clang/lib/Driver/ToolChains/AMDGPU.cpp | 2 +-
 clang/lib/Driver/ToolChains/AMDGPU.h   | 2 +-
 clang/lib/Driver/ToolChains/HIPAMD.cpp | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/clang/lib/Driver/ToolChains/AMDGPU.cpp b/clang/lib/Driver/ToolChains/AMDGPU.cpp
index 4eda95e3b111b..3a1e82ec01b74 100644
--- a/clang/lib/Driver/ToolChains/AMDGPU.cpp
+++ b/clang/lib/Driver/ToolChains/AMDGPU.cpp
@@ -1073,7 +1073,7 @@ RocmInstallationDetector::getCommonBitcodeLibs(
 
 llvm::SmallVector<ToolChain::BitCodeLibraryInfo, 12>
 ROCMToolChain::getCommonDeviceLibNames(
-    const llvm::opt::ArgList &DriverArgs, const std::string &GPUArch,
+    const llvm::opt::ArgList &DriverArgs, llvm::StringRef GPUArch,
     Action::OffloadKind DeviceOffloadingKind) const {
   auto Kind = llvm::AMDGPU::parseArchAMDGCN(GPUArch);
   const StringRef CanonArch = llvm::AMDGPU::getArchNameAMDGCN(Kind);
diff --git a/clang/lib/Driver/ToolChains/AMDGPU.h b/clang/lib/Driver/ToolChains/AMDGPU.h
index 93eb441385949..20b9365c91bbf 100644
--- a/clang/lib/Driver/ToolChains/AMDGPU.h
+++ b/clang/lib/Driver/ToolChains/AMDGPU.h
@@ -148,7 +148,7 @@ class LLVM_LIBRARY_VISIBILITY ROCMToolChain : public AMDGPUToolChain {
   // Returns a list of device library names shared by different languages
   llvm::SmallVector<BitCodeLibraryInfo, 12>
   getCommonDeviceLibNames(const llvm::opt::ArgList &DriverArgs,
-                          const std::string &GPUArch,
+                          llvm::StringRef GPUArch,
                           Action::OffloadKind DeviceOffloadingKind) const;
 
   SanitizerMask getSupportedSanitizers() const override {
diff --git a/clang/lib/Driver/ToolChains/HIPAMD.cpp b/clang/lib/Driver/ToolChains/HIPAMD.cpp
index b4ff90c1d61f0..26548b05d71e2 100644
--- a/clang/lib/Driver/ToolChains/HIPAMD.cpp
+++ b/clang/lib/Driver/ToolChains/HIPAMD.cpp
@@ -420,7 +420,7 @@ HIPAMDToolChain::getDeviceLibs(const llvm::opt::ArgList &DriverArgs,
     assert(!GpuArch.empty() && "Must have an explicit GPU arch.");
 
     // Add common device libraries like ocml etc.
-    for (auto N : getCommonDeviceLibNames(DriverArgs, GpuArch.str(),
+    for (auto N : getCommonDeviceLibNames(DriverArgs, GpuArch,
                                           DeviceOffloadingKind))
       BCLibs.emplace_back(N);