RFR [11]: Revert SBSA::resolve change

[Roman Kennke]

Ok

> sh/jdk11 build fails in aarch64:
> 
> jdk11/build/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp:433:33:
> error: ‘ACCESS_WRITE’ was not declared in this scope
>    bool is_write = (decorators & ACCESS_WRITE) != 0;
> 
> And that is because I backported one fix too many:
>    http://hg.openjdk.java.net/shenandoah/jdk11/rev/e9f2ac39a5e3
> 
> This reverts it:
> 
> diff -r 7f19158276ab src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
> --- a/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp	Mon Sep 10
> 17:56:38 2018 +0200
> +++ b/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp	Wed Sep 12
> 09:25:47 2018 +0200
> @@ -430,23 +430,2 @@
> 
> -void ShenandoahBarrierSetAssembler::resolve(MacroAssembler* masm, DecoratorSet decorators, Register
> obj) {
> -  bool oop_not_null = (decorators & IS_NOT_NULL) != 0;
> -  bool is_write = (decorators & ACCESS_WRITE) != 0;
> -  if (is_write) {
> -    if (oop_not_null) {
> -      write_barrier(masm, obj);
> -    } else {
> -      Label done;
> -      __ cbz(obj, done);
> -      write_barrier(masm, obj);
> -      __ bind(done);
> -    }
> -  } else {
> -    if (oop_not_null) {
> -      read_barrier_not_null(masm, obj);
> -    } else {
> -      read_barrier(masm, obj);
> -    }
> -  }
> -}
> -
>  void ShenandoahBarrierSetAssembler::cmpxchg_oop(MacroAssembler* masm, Register addr, Register
> expected, Register new_val,
> diff -r 7f19158276ab src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp
> --- a/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp	Mon Sep 10
> 17:56:38 2018 +0200
> +++ b/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp	Wed Sep 12
> 09:25:47 2018 +0200
> @@ -86,3 +86,2 @@
>    virtual void obj_equals(MacroAssembler* masm, Register src1, Register src2);
> -  virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj);
>    virtual void tlab_allocate(MacroAssembler* masm, Register obj,
> 
> 
> Thanks,
> -Aleksey
>