Lower signatures exposing struct registers to byval struct pointers

include/llvm/Transforms/NaCl.h

Index: include/llvm/Transforms/NaCl.h
diff --git a/include/llvm/Transforms/NaCl.h b/include/llvm/Transforms/NaCl.h
index 9de6c23fccc464b4e7e44e4f838875a1ec1bc38d..d068d43299a74c10a4c9cecf1c356d1e73fb2794 100644
--- a/include/llvm/Transforms/NaCl.h
+++ b/include/llvm/Transforms/NaCl.h
@@ -52,6 +52,7 @@ ModulePass *createExpandVarArgsPass();
 ModulePass *createFlattenGlobalsPass();
 ModulePass *createGlobalCleanupPass();
 ModulePass *createGlobalizeConstantVectorsPass();
+ModulePass *createSimplifyStructRegSignaturesPass();
 ModulePass *createPNaClSjLjEHPass();
 ModulePass *createReplacePtrsWithIntsPass();
 ModulePass *createResolveAliasesPass();