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/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 99e34e4..c09d489 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -2753,6 +2753,12 @@
}
}
+ CmdArgs.push_back("-mthread-model");
+ if (Arg *A = Args.getLastArg(options::OPT_mthread_model))
+ CmdArgs.push_back(A->getValue());
+ else
+ CmdArgs.push_back(Args.MakeArgString(getToolChain().getThreadModel()));
+
if (!Args.hasFlag(options::OPT_fmerge_all_constants,
options::OPT_fno_merge_all_constants))
CmdArgs.push_back("-fno-merge-all-constants");