--- old/src/hotspot/share/c1/c1_LIRAssembler.cpp	2018-03-12 22:04:26.388559193 -0400
+++ new/src/hotspot/share/c1/c1_LIRAssembler.cpp	2018-03-12 22:04:25.792504403 -0400
@@ -30,6 +30,7 @@
 #include "c1/c1_MacroAssembler.hpp"
 #include "c1/c1_ValueStack.hpp"
 #include "ci/ciInstance.hpp"
+#include "gc/shared/collectedHeap.hpp"
 #include "runtime/os.hpp"
 
 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) {