CFE Knob for: Add a thread-model knob for lowering atomics on baremetal & single threaded systems
http://reviews.llvm.org/D4985
llvm-svn: 219027
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 8b09775..89713f5 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -684,9 +684,13 @@
OS << "Target: " << TC.getTripleString() << '\n';
// Print the threading model.
- //
- // FIXME: Implement correctly.
- OS << "Thread model: " << "posix" << '\n';
+ if (Arg *A = C.getArgs().getLastArg(options::OPT_mthread_model)) {
+ // Don't print if the ToolChain would have barfed on it already
+ if (TC.isThreadModelSupported(A->getValue()))
+ OS << "Thread model: " << A->getValue();
+ } else
+ OS << "Thread model: " << TC.getThreadModel();
+ OS << '\n';
}
/// PrintDiagnosticCategories - Implement the --print-diagnostic-categories