Fix 012-math. Add fmod.

Change-Id: I8704d04479fc4c4f8e0927936b0c8d9d388550ab
diff --git a/src/compiler_llvm/compiler_runtime_func_list.h b/src/compiler_llvm/compiler_runtime_func_list.h
index 189939b..c57ef8d 100644
--- a/src/compiler_llvm/compiler_runtime_func_list.h
+++ b/src/compiler_llvm/compiler_runtime_func_list.h
@@ -175,7 +175,8 @@
   V(__moddi3) \
   V(__modsi3) \
   V(__umoddi3) \
-  V(__umodsi3)
+  V(__umodsi3) \
+  V(fmod)
 
 #else