[ARM] Register the Thumb2SizeReducePass. NFC
Also adds a simple test case.
llvm-svn: 321072
diff --git a/llvm/lib/Target/ARM/ARM.h b/llvm/lib/Target/ARM/ARM.h
index 3aac689..9ffb4c2 100644
--- a/llvm/lib/Target/ARM/ARM.h
+++ b/llvm/lib/Target/ARM/ARM.h
@@ -61,6 +61,7 @@
void initializeARMPreAllocLoadStoreOptPass(PassRegistry &);
void initializeARMConstantIslandsPass(PassRegistry &);
void initializeARMExpandPseudoPass(PassRegistry &);
+void initializeThumb2SizeReducePass(PassRegistry &);
} // end namespace llvm