commit 98873affc25ef6bc96f8c65f828f28530b8f3fcd
author Vladimir Marko <vmarko@google.com> Wed Dec 16 12:10:03 2020 +0000
committer Vladimir Marko <vmarko@google.com> Fri Jan 08 13:44:10 2021 +0000
tree be471ad310edb1aa3a7b3df44528905ec7ce9a6c
parent 771708f3f0a15c1ae50617b4141c5f5dd47bf94f

arm64: Implement VarHandle intrinsics for byte array views.

Using benchmarks provided by
    https://android-review.googlesource.com/1420959
on blueline little cores with fixed frequency 1420800:
                             before after
GetByteArrayViewInt          27.093 0.024
SetByteArrayViewInt          28.067 0.024
GetByteArrayViewBigEndianInt 27.142 0.026
SetByteArrayViewBigEndianInt 28.040 0.025

Test: testrunner.py --target --64 --optimizing
Bug: 71781600
Change-Id: I604326675042bd63dce8ec15075714003ca9915d

compiler/optimizing/code_generator_arm64.h

diff --git a/compiler/optimizing/code_generator_arm64.h b/compiler/optimizing/code_generator_arm64.h
index c7c11f5..affc640 100644
--- a/compiler/optimizing/code_generator_arm64.h
+++ b/compiler/optimizing/code_generator_arm64.h
@@ -18,6 +18,7 @@
 #define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_ARM64_H_
 
 #include "base/bit_field.h"
+#include "class_root.h"
 #include "code_generator.h"
 #include "common_arm64.h"
 #include "dex/dex_file_types.h"
@@ -646,6 +647,7 @@
              vixl::aarch64::CPURegister src,
              const vixl::aarch64::MemOperand& dst);
   void LoadAcquire(HInstruction* instruction,
+                   DataType::Type type,
                    vixl::aarch64::CPURegister dst,
                    const vixl::aarch64::MemOperand& src,
                    bool needs_null_check);
@@ -787,7 +789,9 @@
                                 vixl::aarch64::Register base);
 
   void LoadBootImageAddress(vixl::aarch64::Register reg, uint32_t boot_image_reference);
+  void LoadTypeForBootImageIntrinsic(vixl::aarch64::Register reg, TypeReference type_reference);
   void LoadIntrinsicDeclaringClass(vixl::aarch64::Register reg, HInvoke* invoke);
+  void LoadClassRootForIntrinsic(vixl::aarch64::Register reg, ClassRoot class_root);
 
   void EmitLinkerPatches(ArenaVector<linker::LinkerPatch>* linker_patches) override;
   bool NeedsThunkCode(const linker::LinkerPatch& patch) const override;