6992477: fix for 6991512 broke sparc barriers

Reviewed-by: kvn, iveresov

src/cpu/sparc/vm/c1_LIRGenerator_sparc.cpp

@@ -664,7 +664,7 @@ void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
   // Use temps to avoid kills
   LIR_Opr t1 = FrameMap::G1_opr;
   LIR_Opr t2 = FrameMap::G3_opr;
-  LIR_Opr addr = (type == objectType) ? new_register(T_OBJECT) : new_pointer_register();
+  LIR_Opr addr = new_pointer_register();
 
   // get address of field
   obj.load_item();

src/cpu/x86/vm/c1_CodeStubs_x86.cpp

@@ -499,7 +499,7 @@ void G1PostBarrierStub::emit_code(LIR_Assembler* ce) {
   Register new_val_reg = new_val()->as_register();
   __ cmpptr(new_val_reg, (int32_t) NULL_WORD);
   __ jcc(Assembler::equal, _continuation);
-  ce->store_parameter(addr()->as_register(), 0);
+  ce->store_parameter(addr()->as_pointer_register(), 0);
   __ call(RuntimeAddress(Runtime1::entry_for(Runtime1::g1_post_barrier_slow_id)));
   __ jmp(_continuation);
 }

src/cpu/x86/vm/c1_LIRGenerator_x86.cpp

@@ -765,7 +765,7 @@ void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
     ShouldNotReachHere();
   }
 
-  LIR_Opr addr = (type == objectType) ? new_register(T_OBJECT) : new_pointer_register();
+  LIR_Opr addr = new_pointer_register();
   LIR_Address* a;
   if(offset.result()->is_constant()) {
     a = new LIR_Address(obj.result(),

src/share/vm/c1/c1_LIRGenerator.cpp

@@ -1350,7 +1350,6 @@ void LIRGenerator::G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_Opr
     addr = ptr;
   }
   assert(addr->is_register(), "must be a register at this point");
-  assert(addr->type() == T_OBJECT, "addr should point to an object");
 
   LIR_Opr xor_res = new_pointer_register();
   LIR_Opr xor_shift_res = new_pointer_register();