Frontend: Add a more explicit -backend-option flag for passing backend command
line options, instead of leveraging the blanket -mllvm option.
- This allows using the frontend itself without requiring the backend have
those options available (i.e., if the target wasn't built).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128087 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 2b5c289..980c752 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -207,6 +207,10 @@
}
if (!Opts.VerifyModule)
Res.push_back("-disable-llvm-verifier");
+ for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) {
+ Res.push_back("-backend-option");
+ Res.push_back(Opts.BackendOptions[i]);
+ }
}
static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
@@ -927,6 +931,7 @@
Opts.NoInfsFPMath = Opts.NoNaNsFPMath = Args.hasArg(OPT_cl_finite_math_only)||
Args.hasArg(OPT_cl_fast_relaxed_math);
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
+ Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags);
Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);