diff -r cba047a086d5 -r b3fa0a291684 hotspot/src/cpu/aarch64/vm/c1_CodeStubs_aarch64.cpp
--- a/hotspot/src/cpu/aarch64/vm/c1_CodeStubs_aarch64.cpp	Fri Jan 08 10:14:02 2016 +0100
+++ b/hotspot/src/cpu/aarch64/vm/c1_CodeStubs_aarch64.cpp	Tue Jan 12 15:01:52 2016 +0000
@@ -256,6 +256,7 @@
 
 void DeoptimizeStub::emit_code(LIR_Assembler* ce) {
   __ bind(_entry);
+  ce->store_parameter(_trap_request, 0);
   __ far_call(RuntimeAddress(Runtime1::entry_for(Runtime1::deoptimize_id)));
   ce->add_call_info_here(_info);
   DEBUG_ONLY(__ should_not_reach_here());