Add getter method to access Reloc::Model.

Some MC components like Target Streamers or Assembly Parsers
may need to access the relocation model in order to expand
some directives and/or assembly macros.

llvm-svn: 202418

llvm/include/llvm/MC/MCObjectFileInfo.h

@@ -366,6 +366,10 @@ public:
     return Env;
   }
 
+  Reloc::Model getRelocM() const {
+    return RelocM;
+  }
+
 private:
   Environment Env;
   Reloc::Model RelocM;