Fix issue 1968, replace usage of inline 'asm' constructs in 'stack alignment', 'jump to exception h…

vm/stub_code.h

 // Copyright (c) 2011, 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.
 
 #ifndef VM_STUB_CODE_H_
 #define VM_STUB_CODE_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 
@@ skipping 17 matching lines @@
   V(MegamorphicLookup)                                                         \
   V(CallStaticFunction)                                                        \
   V(CallClosureFunction)                                                       \
   V(FixCallersTarget)                                                          \
   V(Deoptimize)                                                                \
   V(BreakpointStatic)                                                          \
   V(BreakpointReturn)                                                          \
   V(Subtype1TestCache)                                                         \
   V(Subtype2TestCache)                                                         \
   V(Subtype3TestCache)                                                         \
+  V(GetStackPointer)                                                           \
+  V(JumpToExceptionHandler)                                                    \
+  V(JumpToErrorHandler)                                                        \
 
 // Is it permitted for the stubs above to refer to Object::null(), which is
 // allocated in the VM isolate and shared across all isolates.
 // However, in cases where a simple GC-safe placeholder is needed on the stack,
 // using Smi 0 instead of Object::null() is slightly more efficient, since a Smi
 // does not require relocation.
 
 // List of stubs created per isolate, these stubs could potentially contain
 // embedded objects and hence cannot be shared across isolates.
 #define STUB_CODE_LIST(V)                                                      \
@@ skipping 128 matching lines @@
                                              const Class& cls);
   static void GenerateAllocationStubForClosure(Assembler* assembler,
                                                const Function& func);
   static void GenerateNArgsCheckInlineCacheStub(Assembler* assembler,
                                                 intptr_t num_args);
 };
 
 }  // namespace dart
 
 #endif  // VM_STUB_CODE_H_