[RISCV][Driver] Make the ordering of CmdArgs consistent between RISCV::Linker and baremetal::Linker

In baremetal::Linker::ConstructJob, LinkerInput is handled prior to T_Group options,
but on the other side in RISCV::Linker::ConstructJob, it is opposite.

We want it to be consistent whether users are using RISCV::Linker or baremetal::Linker.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D100615

Author: arcbbb

clang/lib/Driver/ToolChains/RISCVToolchain.cpp

@@ -181,14 +181,14 @@ void RISCV::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin)));
   }
 
+  AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
+
   Args.AddAllArgs(CmdArgs, options::OPT_L);
   ToolChain.AddFilePathLibArgs(Args, CmdArgs);
   Args.AddAllArgs(CmdArgs,
                   {options::OPT_T_Group, options::OPT_e, options::OPT_s,
                    options::OPT_t, options::OPT_Z_Flag, options::OPT_r});
 
-  AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
-
   // TODO: add C++ includes and libs if compiling C++.
 
   if (!Args.hasArg(options::OPT_nostdlib) &&

clang/test/Driver/riscv-args.c

@@ -0,0 +1,7 @@
+// Check the arguments are correctly passed
+
+// Make sure -T is the last with gcc-toolchain option
+// RUN: %clang -### -target riscv32 \
+// RUN:   --gcc-toolchain= -Xlinker --defsym=FOO=10 -T a.lds %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-LD %s
+// CHECK-LD: {{.*}} "--defsym=FOO=10" {{.*}} "-T" "a.lds"