ART: Extract JNI macro assembler for arm64
Extract the JNI assembler parts from the regular assembler.
Change-Id: I0b0ad32e18f585b75e9da0237afe082c25a1d291
Test: m test-art-target (N9)
diff --git a/compiler/utils/arm64/jni_macro_assembler_arm64.h b/compiler/utils/arm64/jni_macro_assembler_arm64.h
new file mode 100644
index 0000000..79ee441
--- /dev/null
+++ b/compiler/utils/arm64/jni_macro_assembler_arm64.h
@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_COMPILER_UTILS_ARM64_JNI_MACRO_ASSEMBLER_ARM64_H_
+#define ART_COMPILER_UTILS_ARM64_JNI_MACRO_ASSEMBLER_ARM64_H_
+
+#include <stdint.h>
+#include <memory>
+#include <vector>
+
+#include "assembler_arm64.h"
+#include "base/arena_containers.h"
+#include "base/enums.h"
+#include "base/logging.h"
+#include "utils/assembler.h"
+#include "utils/jni_macro_assembler.h"
+#include "offsets.h"
+
+// TODO: make vixl clean wrt -Wshadow, -Wunknown-pragmas, -Wmissing-noreturn
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunknown-pragmas"
+#pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wmissing-noreturn"
+#include "a64/macro-assembler-a64.h"
+#pragma GCC diagnostic pop
+
+namespace art {
+namespace arm64 {
+
+class Arm64JNIMacroAssembler FINAL : public JNIMacroAssemblerFwd<Arm64Assembler, PointerSize::k64> {
+ public:
+ explicit Arm64JNIMacroAssembler(ArenaAllocator* arena)
+ : JNIMacroAssemblerFwd(arena),
+ exception_blocks_(arena->Adapter(kArenaAllocAssembler)) {}
+
+ ~Arm64JNIMacroAssembler();
+
+ // Finalize the code.
+ void FinalizeCode() OVERRIDE;
+
+ // Emit code that will create an activation on the stack.
+ void BuildFrame(size_t frame_size,
+ ManagedRegister method_reg,
+ ArrayRef<const ManagedRegister> callee_save_regs,
+ const ManagedRegisterEntrySpills& entry_spills) OVERRIDE;
+
+ // Emit code that will remove an activation from the stack.
+ void RemoveFrame(size_t frame_size, ArrayRef<const ManagedRegister> callee_save_regs)
+ OVERRIDE;
+
+ void IncreaseFrameSize(size_t adjust) OVERRIDE;
+ void DecreaseFrameSize(size_t adjust) OVERRIDE;
+
+ // Store routines.
+ void Store(FrameOffset offs, ManagedRegister src, size_t size) OVERRIDE;
+ void StoreRef(FrameOffset dest, ManagedRegister src) OVERRIDE;
+ void StoreRawPtr(FrameOffset dest, ManagedRegister src) OVERRIDE;
+ void StoreImmediateToFrame(FrameOffset dest, uint32_t imm, ManagedRegister scratch) OVERRIDE;
+ void StoreStackOffsetToThread(ThreadOffset64 thr_offs,
+ FrameOffset fr_offs,
+ ManagedRegister scratch) OVERRIDE;
+ void StoreStackPointerToThread(ThreadOffset64 thr_offs) OVERRIDE;
+ void StoreSpanning(FrameOffset dest,
+ ManagedRegister src,
+ FrameOffset in_off,
+ ManagedRegister scratch) OVERRIDE;
+
+ // Load routines.
+ void Load(ManagedRegister dest, FrameOffset src, size_t size) OVERRIDE;
+ void LoadFromThread(ManagedRegister dest, ThreadOffset64 src, size_t size) OVERRIDE;
+ void LoadRef(ManagedRegister dest, FrameOffset src) OVERRIDE;
+ void LoadRef(ManagedRegister dest,
+ ManagedRegister base,
+ MemberOffset offs,
+ bool unpoison_reference) OVERRIDE;
+ void LoadRawPtr(ManagedRegister dest, ManagedRegister base, Offset offs) OVERRIDE;
+ void LoadRawPtrFromThread(ManagedRegister dest, ThreadOffset64 offs) OVERRIDE;
+
+ // Copying routines.
+ void Move(ManagedRegister dest, ManagedRegister src, size_t size) OVERRIDE;
+ void CopyRawPtrFromThread(FrameOffset fr_offs,
+ ThreadOffset64 thr_offs,
+ ManagedRegister scratch) OVERRIDE;
+ void CopyRawPtrToThread(ThreadOffset64 thr_offs, FrameOffset fr_offs, ManagedRegister scratch)
+ OVERRIDE;
+ void CopyRef(FrameOffset dest, FrameOffset src, ManagedRegister scratch) OVERRIDE;
+ void Copy(FrameOffset dest, FrameOffset src, ManagedRegister scratch, size_t size) OVERRIDE;
+ void Copy(FrameOffset dest,
+ ManagedRegister src_base,
+ Offset src_offset,
+ ManagedRegister scratch,
+ size_t size) OVERRIDE;
+ void Copy(ManagedRegister dest_base,
+ Offset dest_offset,
+ FrameOffset src,
+ ManagedRegister scratch,
+ size_t size) OVERRIDE;
+ void Copy(FrameOffset dest,
+ FrameOffset src_base,
+ Offset src_offset,
+ ManagedRegister scratch,
+ size_t size) OVERRIDE;
+ void Copy(ManagedRegister dest,
+ Offset dest_offset,
+ ManagedRegister src,
+ Offset src_offset,
+ ManagedRegister scratch,
+ size_t size) OVERRIDE;
+ void Copy(FrameOffset dest,
+ Offset dest_offset,
+ FrameOffset src,
+ Offset src_offset,
+ ManagedRegister scratch,
+ size_t size) OVERRIDE;
+ void MemoryBarrier(ManagedRegister scratch) OVERRIDE;
+
+ // Sign extension.
+ void SignExtend(ManagedRegister mreg, size_t size) OVERRIDE;
+
+ // Zero extension.
+ void ZeroExtend(ManagedRegister mreg, size_t size) OVERRIDE;
+
+ // Exploit fast access in managed code to Thread::Current().
+ void GetCurrentThread(ManagedRegister tr) OVERRIDE;
+ void GetCurrentThread(FrameOffset dest_offset, ManagedRegister scratch) OVERRIDE;
+
+ // Set up out_reg to hold a Object** into the handle scope, or to be null if the
+ // value is null and null_allowed. in_reg holds a possibly stale reference
+ // that can be used to avoid loading the handle scope entry to see if the value is
+ // null.
+ void CreateHandleScopeEntry(ManagedRegister out_reg,
+ FrameOffset handlescope_offset,
+ ManagedRegister in_reg,
+ bool null_allowed) OVERRIDE;
+
+ // Set up out_off to hold a Object** into the handle scope, or to be null if the
+ // value is null and null_allowed.
+ void CreateHandleScopeEntry(FrameOffset out_off,
+ FrameOffset handlescope_offset,
+ ManagedRegister scratch,
+ bool null_allowed) OVERRIDE;
+
+ // src holds a handle scope entry (Object**) load this into dst.
+ void LoadReferenceFromHandleScope(ManagedRegister dst, ManagedRegister src) OVERRIDE;
+
+ // Heap::VerifyObject on src. In some cases (such as a reference to this) we
+ // know that src may not be null.
+ void VerifyObject(ManagedRegister src, bool could_be_null) OVERRIDE;
+ void VerifyObject(FrameOffset src, bool could_be_null) OVERRIDE;
+
+ // Call to address held at [base+offset].
+ void Call(ManagedRegister base, Offset offset, ManagedRegister scratch) OVERRIDE;
+ void Call(FrameOffset base, Offset offset, ManagedRegister scratch) OVERRIDE;
+ void CallFromThread(ThreadOffset64 offset, ManagedRegister scratch) OVERRIDE;
+
+ // Generate code to check if Thread::Current()->exception_ is non-null
+ // and branch to a ExceptionSlowPath if it is.
+ void ExceptionPoll(ManagedRegister scratch, size_t stack_adjust) OVERRIDE;
+
+ private:
+ class Arm64Exception {
+ public:
+ Arm64Exception(Arm64ManagedRegister scratch, size_t stack_adjust)
+ : scratch_(scratch), stack_adjust_(stack_adjust) {}
+
+ vixl::aarch64::Label* Entry() { return &exception_entry_; }
+
+ // Register used for passing Thread::Current()->exception_ .
+ const Arm64ManagedRegister scratch_;
+
+ // Stack adjust for ExceptionPool.
+ const size_t stack_adjust_;
+
+ vixl::aarch64::Label exception_entry_;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(Arm64Exception);
+ };
+
+ // Emits Exception block.
+ void EmitExceptionPoll(Arm64Exception *exception);
+
+ void StoreWToOffset(StoreOperandType type,
+ WRegister source,
+ XRegister base,
+ int32_t offset);
+ void StoreToOffset(XRegister source, XRegister base, int32_t offset);
+ void StoreSToOffset(SRegister source, XRegister base, int32_t offset);
+ void StoreDToOffset(DRegister source, XRegister base, int32_t offset);
+
+ void LoadImmediate(XRegister dest,
+ int32_t value,
+ vixl::aarch64::Condition cond = vixl::aarch64::al);
+ void Load(Arm64ManagedRegister dst, XRegister src, int32_t src_offset, size_t size);
+ void LoadWFromOffset(LoadOperandType type,
+ WRegister dest,
+ XRegister base,
+ int32_t offset);
+ void LoadFromOffset(XRegister dest, XRegister base, int32_t offset);
+ void LoadSFromOffset(SRegister dest, XRegister base, int32_t offset);
+ void LoadDFromOffset(DRegister dest, XRegister base, int32_t offset);
+ void AddConstant(XRegister rd,
+ int32_t value,
+ vixl::aarch64::Condition cond = vixl::aarch64::al);
+ void AddConstant(XRegister rd,
+ XRegister rn,
+ int32_t value,
+ vixl::aarch64::Condition cond = vixl::aarch64::al);
+
+ // List of exception blocks to generate at the end of the code cache.
+ ArenaVector<std::unique_ptr<Arm64Exception>> exception_blocks_;
+};
+
+} // namespace arm64
+} // namespace art
+
+#endif // ART_COMPILER_UTILS_ARM64_JNI_MACRO_ASSEMBLER_ARM64_H_