[clang][cli] NFC: Decrease the scope of ParseCodeGenArgs parameters

Instead of passing the whole `TargetOptions` and `FrontendOptions` to `ParseCodeGenArgs` give it only the necessary members.
This makes tracking the dependencies between various parsers and option groups easier.

Reviewed By: Bigcheese

Differential Revision: https://reviews.llvm.org/D94675

Author: jansvoboda11

clang/lib/Frontend/CompilerInvocation.cpp

@@ -405,6 +405,8 @@ static void FixupInvocation(CompilerInvocation &Invocation,
   llvm::Triple T(TargetOpts.Triple);
   llvm::Triple::ArchType Arch = T.getArch();
 
+  CodeGenOpts.CodeModel = TargetOpts.CodeModel;
+
   if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None &&
       T.isWindowsMSVCEnvironment())
     Diags.Report(diag::err_fe_invalid_exception_model)
@@ -901,11 +903,9 @@ static void setPGOUseInstrumentor(CodeGenOptions &Opts,
 }
 
 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
-                             DiagnosticsEngine &Diags,
-                             const TargetOptions &TargetOpts,
-                             const FrontendOptions &FrontendOpts) {
+                             DiagnosticsEngine &Diags, const llvm::Triple &T,
+                             const std::string &OutputFile) {
   bool Success = true;
-  llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
 
   unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
   // TODO: This could be done in Driver
@@ -964,7 +964,6 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
       llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
       llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el};
 
-  llvm::Triple T(TargetOpts.Triple);
   if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
       llvm::is_contained(DebugEntryValueArchs, T.getArch()))
     Opts.EmitCallSiteInfo = true;
@@ -990,8 +989,6 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
   if (!Opts.ProfileInstrumentUsePath.empty())
     setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
 
-  Opts.CodeModel = TargetOpts.CodeModel;
-
   if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) {
     Opts.TimePasses = true;
 
@@ -1036,8 +1033,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
   if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
     Opts.SaveTempsFilePrefix =
         llvm::StringSwitch<std::string>(A->getValue())
-            .Case("obj", FrontendOpts.OutputFile)
-            .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
+            .Case("obj", OutputFile)
+            .Default(llvm::sys::path::filename(OutputFile).str());
 
   // The memory profile runtime appends the pid to make this name more unique.
   const char *MemProfileBasename = "memprof.profraw";
@@ -2937,11 +2934,11 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
   InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
                                       LangOpts.IsHeaderFile);
   ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
-  Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
-                              Res.getTargetOpts(), Res.getFrontendOpts());
+  llvm::Triple T(Res.getTargetOpts().Triple);
+  Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T,
+                              Res.getFrontendOpts().OutputFile);
   ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
                         Res.getFileSystemOpts().WorkingDir);
-  llvm::Triple T(Res.getTargetOpts().Triple);
   if (DashX.getFormat() == InputKind::Precompiled ||
       DashX.getLanguage() == Language::LLVM_IR) {
     // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the