X87: [runtime] Unify and simplify how frames are marked.

src/x87/code-stubs-x87.cc

Index: src/x87/code-stubs-x87.cc
diff --git a/src/x87/code-stubs-x87.cc b/src/x87/code-stubs-x87.cc
index fd2c8924bca422ba842029715d78d12aa59a55cf..155e1b8a6650e891fbe2c9415823461a446f6626 100644
--- a/src/x87/code-stubs-x87.cc
+++ b/src/x87/code-stubs-x87.cc
@@ -1720,8 +1720,9 @@ void JSEntryStub::Generate(MacroAssembler* masm) {
 
   // Push marker in two places.
   int marker = type();
-  __ push(Immediate(Smi::FromInt(marker)));  // context slot
-  __ push(Immediate(Smi::FromInt(marker)));  // function slot
+  __ push(Immediate(Smi::FromInt(marker)));  // marker
+  ExternalReference context_address(Isolate::kContextAddress, isolate());
+  __ push(Operand::StaticVariable(context_address));  // context
   // Save callee-saved registers (C calling conventions).
   __ push(edi);
   __ push(esi);
@@ -3385,7 +3386,7 @@ void StubFailureTrampolineStub::Generate(MacroAssembler* masm) {
   CEntryStub ces(isolate(), 1, kSaveFPRegs);
   __ call(ces.GetCode(), RelocInfo::CODE_TARGET);
   int parameter_count_offset =
-      StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset;
+      StubFailureTrampolineFrameConstants::kArgumentsLengthOffset;
   __ mov(ebx, MemOperand(ebp, parameter_count_offset));
   masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE);
   __ pop(ecx);
@@ -4531,7 +4532,7 @@ void FastNewRestParameterStub::Generate(MacroAssembler* masm) {
     __ bind(&loop);
     __ mov(edx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
     __ bind(&loop_entry);
-    __ cmp(edi, Operand(edx, StandardFrameConstants::kMarkerOffset));
+    __ cmp(edi, Operand(edx, StandardFrameConstants::kFunctionOffset));
     __ j(not_equal, &loop);
   }
 
@@ -4539,7 +4540,7 @@ void FastNewRestParameterStub::Generate(MacroAssembler* masm) {
   // arguments adaptor frame below the function frame).
   Label no_rest_parameters;
   __ mov(ebx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  __ cmp(Operand(ebx, StandardFrameConstants::kContextOffset),
+  __ cmp(Operand(ebx, CommonFrameConstants::kContextOrFrameTypeOffset),
          Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
   __ j(not_equal, &no_rest_parameters, Label::kNear);
 
@@ -4681,7 +4682,7 @@ void FastNewSloppyArgumentsStub::Generate(MacroAssembler* masm) {
   // Check if the calling frame is an arguments adaptor frame.
   Label adaptor_frame, try_allocate, runtime;
   __ mov(ebx, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
-  __ mov(eax, Operand(ebx, StandardFrameConstants::kContextOffset));
+  __ mov(eax, Operand(ebx, CommonFrameConstants::kContextOrFrameTypeOffset));
   __ cmp(eax, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
   __ j(equal, &adaptor_frame, Label::kNear);
 
@@ -4917,14 +4918,14 @@ void FastNewStrictArgumentsStub::Generate(MacroAssembler* masm) {
     __ bind(&loop);
     __ mov(edx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
     __ bind(&loop_entry);
-    __ cmp(edi, Operand(edx, StandardFrameConstants::kMarkerOffset));
+    __ cmp(edi, Operand(edx, StandardFrameConstants::kFunctionOffset));
     __ j(not_equal, &loop);
   }
 
   // Check if we have an arguments adaptor frame below the function frame.
   Label arguments_adaptor, arguments_done;
   __ mov(ebx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  __ cmp(Operand(ebx, StandardFrameConstants::kContextOffset),
+  __ cmp(Operand(ebx, CommonFrameConstants::kContextOrFrameTypeOffset),
          Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
   __ j(equal, &arguments_adaptor, Label::kNear);
   {