Driver/Frontend: Add support for -mllvm, which forwards options to the LLVM option parser.
- Note that this is a behavior change, previously -mllvm at the driver level forwarded to clang -cc1. The driver does a little magic to make sure that '-mllvm -disable-llvm-optzns' works correctly, but other users will need to be updated to use -Xclang.
llvm-svn: 101354
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 990371b..f51bad2 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -383,6 +383,10 @@
Res.push_back("-ast-merge");
Res.push_back(Opts.ASTMergeFiles[i]);
}
+ for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) {
+ Res.push_back("-mllvm");
+ Res.push_back(Opts.LLVMArgs[i]);
+ }
}
static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts,
@@ -955,6 +959,7 @@
Opts.ShowVersion = Args.hasArg(OPT_version);
Opts.ViewClassInheritance = getLastArgValue(Args, OPT_cxx_inheritance_view);
Opts.ASTMergeFiles = getAllArgValues(Args, OPT_ast_merge);
+ Opts.LLVMArgs = getAllArgValues(Args, OPT_mllvm);
FrontendOptions::InputKind DashX = FrontendOptions::IK_None;
if (const Arg *A = Args.getLastArg(OPT_x)) {