[runtime] Unify and simplify how frames are marked

src/arm/deoptimizer-arm.cc

 // Copyright 2012 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/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/register-configuration.h"
 #include "src/safepoint-table.h"
 
@@ skipping 138 matching lines @@
   // address for lazy deoptimization) and compute the fp-to-sp delta in
   // register r4.
   __ mov(r3, lr);
   // Correct one word for bailout id.
   __ add(r4, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize)));
   __ sub(r4, fp, r4);
 
   // Allocate a new deoptimizer object.
   // Pass four arguments in r0 to r3 and fifth argument on stack.
   __ PrepareCallCFunction(6, r5);
+  __ mov(r0, Operand(0));
+  Label context_check;
+  __ ldr(r1, MemOperand(fp, CommonFrameConstants::kContextOrFrameTypeOffset));
+  __ JumpIfSmi(r1, &context_check);
   __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ bind(&context_check);
   __ mov(r1, Operand(type()));  // bailout type,
   // r2: bailout id already loaded.
   // r3: code address or 0 already loaded.
   __ str(r4, MemOperand(sp, 0 * kPointerSize));  // Fp-to-sp delta.
   __ mov(r5, Operand(ExternalReference::isolate_address(isolate())));
   __ str(r5, MemOperand(sp, 1 * kPointerSize));  // Isolate.
   // Call Deoptimizer::New().
   {
     AllowExternalCallThatCantCauseGC scope(masm());
     __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate()), 6);
@@ skipping 159 matching lines @@
 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) {
   DCHECK(FLAG_enable_embedded_constant_pool);
   SetFrameSlot(offset, value);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8