Adds Simulator Longjmp and enables many tests for arm64.

runtime/vm/stub_code_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 134 matching lines @@
   const intptr_t argv_offset = NativeArguments::argv_offset();
   const intptr_t retval_offset = NativeArguments::retval_offset();
 
   __ EnterFrame(0);
 
   // Load current Isolate pointer from Context structure into R0.
   __ LoadFieldFromOffset(R0, CTX, Context::isolate_offset());
 
   // Save exit frame information to enable stack walking as we are about
   // to transition to native code.
-  __ StoreToOffset(SP, R0, Isolate::top_exit_frame_info_offset());
+  __ mov(TMP, SP);
+  __ StoreToOffset(TMP, R0, Isolate::top_exit_frame_info_offset());
 
   // Save current Context pointer into Isolate structure.
   __ StoreToOffset(CTX, R0, Isolate::top_context_offset());
 
   // Cache Isolate pointer into CTX while executing native code.
   __ mov(CTX, R0);
 
 #if defined(DEBUG)
   { Label ok;
     // Check that we are always entering from Dart code.
@@ skipping 63 matching lines @@
   // Call native function or redirection via simulator.
   __ blr(R5);
 
   __ Bind(&done);
 
   // Mark that the isolate is executing Dart code.
   __ LoadImmediate(R2, VMTag::kScriptTagId, kNoPP);
   __ StoreToOffset(R2, CTX, Isolate::vm_tag_offset());
 
   // Reset exit frame information in Isolate structure.
-  __ LoadImmediate(R2, 0, kNoPP);
-  __ StoreToOffset(R2, CTX, Isolate::top_exit_frame_info_offset());
+  __ StoreToOffset(ZR, CTX, Isolate::top_exit_frame_info_offset());
 
   // Load Context pointer from Isolate structure into R2.
   __ LoadFromOffset(R2, CTX, Isolate::top_context_offset());
 
   // Reset Context pointer in Isolate structure.
   __ LoadObject(R3, Object::null_object(), PP);
   __ StoreToOffset(R3, CTX, Isolate::top_context_offset());
 
   // Cache Context pointer into CTX while executing Dart code.
   __ mov(CTX, R2);
@@ skipping 78 matching lines @@
   __ mov(R0, SP);  // Pass the pointer to the NativeArguments.
 
   // Call native function or redirection via simulator.
   __ blr(R5);
 
   // Mark that the isolate is executing Dart code.
   __ LoadImmediate(R2, VMTag::kScriptTagId, kNoPP);
   __ StoreToOffset(R2, CTX, Isolate::vm_tag_offset());
 
   // Reset exit frame information in Isolate structure.
-  __ LoadImmediate(R2, 0, kNoPP);
-  __ StoreToOffset(R2, CTX, Isolate::top_exit_frame_info_offset());
+  __ StoreToOffset(ZR, CTX, Isolate::top_exit_frame_info_offset());
 
   // Load Context pointer from Isolate structure into R2.
   __ LoadFromOffset(R2, CTX, Isolate::top_context_offset());
 
   // Reset Context pointer in Isolate structure.
   __ LoadObject(R3, Object::null_object(), PP);
   __ StoreToOffset(R3, CTX, Isolate::top_context_offset());
 
   // Cache Context pointer into CTX while executing Dart code.
   __ mov(CTX, R2);
@@ skipping 1241 matching lines @@
 
 
 void StubCode::GenerateOptimizedIdenticalWithNumberCheckStub(
     Assembler* assembler) {
   __ Stop("GenerateOptimizedIdenticalWithNumberCheckStub");
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64