[clang] 1f02ba4 - [Driver][SystemZ] Simplify -mtune

[Fangrui Song via cfe-commits]

Author: Fangrui Song
Date: 2022-07-22T14:54:27-07:00
New Revision: 1f02ba4843a519606a3bdfd7e7a289f3d8c1c14b

URL: https://github.com/llvm/llvm-project/commit/1f02ba4843a519606a3bdfd7e7a289f3d8c1c14b
DIFF: https://github.com/llvm/llvm-project/commit/1f02ba4843a519606a3bdfd7e7a289f3d8c1c14b.diff

LOG: [Driver][SystemZ] Simplify -mtune

Similar to AArch64.

Added: 
    

Modified: 
    clang/lib/Driver/ToolChains/Clang.cpp

Removed: 
    


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diff  --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index a0b6422e51e2..092566211ed0 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -2209,19 +2209,12 @@ void Clang::AddSparcTargetArgs(const ArgList &Args,
 
 void Clang::AddSystemZTargetArgs(const ArgList &Args,
                                  ArgStringList &CmdArgs) const {
-  if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_mtune_EQ)) {
-    StringRef Name = A->getValue();
-
-    std::string TuneCPU;
-    if (Name == "native")
-      TuneCPU = std::string(llvm::sys::getHostCPUName());
+  if (const Arg *A = Args.getLastArg(options::OPT_mtune_EQ)) {
+    CmdArgs.push_back("-tune-cpu");
+    if (strcmp(A->getValue(), "native") == 0)
+      CmdArgs.push_back(Args.MakeArgString(llvm::sys::getHostCPUName()));
     else
-      TuneCPU = std::string(Name);
-
-    if (!TuneCPU.empty()) {
-      CmdArgs.push_back("-tune-cpu");
-      CmdArgs.push_back(Args.MakeArgString(TuneCPU));
-    }
+      CmdArgs.push_back(A->getValue());
   }
 
   bool HasBackchain =