[wasm] WIP fix arm64 frame alignment.

src/compiler/wasm-compiler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/wasm-compiler.h"
 
 #include "src/isolate-inl.h"
 
 #include "src/base/platform/elapsed-timer.h"
 #include "src/base/platform/platform.h"
@@ skipping 2443 matching lines @@
     Vector<char> buffer;
     if (debugging) {
       buffer = Vector<char>::New(128);
       SNPrintF(buffer, "js-to-wasm#%d", id);
       func_name = buffer.start();
     }
 
     CompilationInfo info(func_name, isolate, &zone, flags);
     Handle<Code> code =
         Pipeline::GenerateCodeForTesting(&info, incoming, &graph, nullptr);
+#ifdef ENABLE_DISASSEMBLER
+    if (FLAG_print_opt_code && !code.is_null()) {
+      OFStream os(stdout);
+      code->Disassemble(buffer.start(), os);
+    }
+#endif
     if (debugging) {
       buffer.Dispose();
     }
 
     RecordFunctionCompilation(
         Logger::FUNCTION_TAG, &info, "js-to-wasm", index,
         module->module->GetName(func->name_offset, func->name_length));
     // Set the JSFunction's machine code.
     function->set_code(*code);
   }
@@ skipping 60 matching lines @@
     static unsigned id = 0;
     Vector<char> buffer;
     if (debugging) {
       buffer = Vector<char>::New(128);
       SNPrintF(buffer, "wasm-to-js#%d", id);
       func_name = buffer.start();
     }
 
     CompilationInfo info(func_name, isolate, &zone, flags);
     code = Pipeline::GenerateCodeForTesting(&info, incoming, &graph, nullptr);
+#ifdef ENABLE_DISASSEMBLER
+    if (FLAG_print_opt_code && !code.is_null()) {
+      OFStream os(stdout);
+      code->Disassemble(buffer.start(), os);
+    }
+#endif
     if (debugging) {
       buffer.Dispose();
     }
 
     RecordFunctionCompilation(Logger::FUNCTION_TAG, &info, "wasm-to-js", 0,
                               module_name);
   }
   return code;
 }
 
@@ skipping 104 matching lines @@
         static_cast<int>(function.code_end_offset - function.code_start_offset),
         decode_ms, static_cast<int>(graph.NodeCount()), compile_ms);
   }
   return code;
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8