commit b140a100a0479f9dfcb45c523f22dd64c41b68f0
author Jonathan Roelofs <jonathan@codesourcery.com> Fri Oct 03 21:57:44 2014 +0000
committer Jonathan Roelofs <jonathan@codesourcery.com> Fri Oct 03 21:57:44 2014 +0000
tree 5c28a4c9a18528cf4ae78ca8a1a803d21fceeef8
parent 0820e13e2a2676fd61500ec3cbe0a2c3d1902c43

CFE Knob for: Add a thread-model knob for lowering atomics on baremetal & single threaded systems

http://reviews.llvm.org/D4985

llvm-svn: 219027

clang/lib/CodeGen/BackendUtil.cpp

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index e28f504..6db9526 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -425,6 +425,11 @@
 
   llvm::TargetOptions Options;
 
+  Options.ThreadModel =
+    llvm::StringSwitch<llvm::ThreadModel::Model>(CodeGenOpts.ThreadModel)
+      .Case("posix", llvm::ThreadModel::POSIX)
+      .Case("single", llvm::ThreadModel::Single);
+
   if (CodeGenOpts.DisableIntegratedAS)
     Options.DisableIntegratedAS = true;