[clang][cli] NFC: Parse some LangOpts after the defaults are set

This patch ensures we only parse the necessary options before calling `setLangDefaults` (explained in D94678).

Because neither `LangOpts.CFProtectionBranch` nor `LangOpts.SYCLIsDevice` are used in `setLangDefaults`, this is a NFC.

Reviewed By: Bigcheese

Differential Revision: https://reviews.llvm.org/D94680

Author: jansvoboda11

clang/lib/Frontend/CompilerInvocation.cpp

@@ -2196,12 +2196,6 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
     }
   }
 
-  if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
-    StringRef Name = A->getValue();
-    if (Name == "full" || Name == "branch") {
-      Opts.CFProtectionBranch = 1;
-    }
-  }
   // -cl-std only applies for OpenCL language standards.
   // Override the -std option in this case.
   if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
@@ -2224,14 +2218,21 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
       LangStd = OpenCLLangStd;
   }
 
-  Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device);
-
   // These need to be parsed now. They are used to set OpenCL defaults.
   Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
   Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
 
   CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd);
 
+  if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
+    StringRef Name = A->getValue();
+    if (Name == "full" || Name == "branch") {
+      Opts.CFProtectionBranch = 1;
+    }
+  }
+
+  Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device);
+
   // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
   // This option should be deprecated for CL > 1.0 because
   // this option was added for compatibility with OpenCL 1.0.