[clang][flang][mlir] Support -frecord-command-line option (#102975)

Add support for the -frecord-command-line option that will produce the
llvm.commandline metadata which will eventually be saved in the object
file. This behavior is also supported in clang. Some refactoring of the
code in flang to handle these command line options was carried out. The
corresponding -grecord-command-line option which saves the command line
in the debug information has not yet been enabled for flang.

1 files changed, 6 insertions, 0 deletions

diff --git a/flang/lib/Frontend/CompilerInvocation.cpp b/flang/lib/Frontend/CompilerInvocation.cpp
index 90c3275..8441c7d 100644
--- a/flang/lib/Frontend/CompilerInvocation.cpp
+++ b/flang/lib/Frontend/CompilerInvocation.cpp
@@ -348,6 +348,12 @@ static void parseCodeGenArgs(Fortran::frontend::CodeGenOptions &opts,
   if (auto *a = args.getLastArg(clang::driver::options::OPT_save_temps_EQ))
     opts.SaveTempsDir = a->getValue();
 
+  // -record-command-line option.
+  if (const llvm::opt::Arg *a =
+          args.getLastArg(clang::driver::options::OPT_record_command_line)) {
+    opts.RecordCommandLine = a->getValue();
+  }
+
   // -mlink-builtin-bitcode
   for (auto *a :
        args.filtered(clang::driver::options::OPT_mlink_builtin_bitcode))