diff --git a/compiler/optimizing/optimizing_compiler.h b/compiler/optimizing/optimizing_compiler.h
index d076fb5..0c89da1 100644
--- a/compiler/optimizing/optimizing_compiler.h
+++ b/compiler/optimizing/optimizing_compiler.h
@@ -24,6 +24,11 @@
 
 Compiler* CreateOptimizingCompiler(CompilerDriver* driver);
 
+// Returns whether we are compiling against a "core" image, which
+// is an indicative we are running tests. The compiler will use that
+// information for checking invariants.
+bool IsCompilingWithCoreImage();
+
 }  // namespace art
 
 #endif  // ART_COMPILER_OPTIMIZING_OPTIMIZING_COMPILER_H_