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

src/crankshaft/mips/lithium-codegen-mips.cc

Index: src/crankshaft/mips/lithium-codegen-mips.cc
diff --git a/src/crankshaft/mips/lithium-codegen-mips.cc b/src/crankshaft/mips/lithium-codegen-mips.cc
index 414061d8e3682a843b07ec96f3e8dd0eb2714ea2..7eab6a6784386a7d44aace71bc56880426f3671f 100644
--- a/src/crankshaft/mips/lithium-codegen-mips.cc
+++ b/src/crankshaft/mips/lithium-codegen-mips.cc
@@ -278,18 +278,15 @@ bool LCodeGen::GenerateDeferredCode() {
         DCHECK(!frame_is_built_);
         DCHECK(info()->IsStub());
         frame_is_built_ = true;
-        __ MultiPush(cp.bit() | fp.bit() | ra.bit());
         __ li(scratch0(), Operand(Smi::FromInt(StackFrame::STUB)));
-        __ push(scratch0());
-        __ Addu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
+        __ PushCommonFrame(scratch0());
         Comment(";;; Deferred code");
       }
       code->Generate();
       if (NeedsDeferredFrame()) {
         Comment(";;; Destroy frame");
         DCHECK(frame_is_built_);
-        __ pop(at);
-        __ MultiPop(cp.bit() | fp.bit() | ra.bit());
+        __ PopCommonFrame(scratch0());
         frame_is_built_ = false;
       }
       __ jmp(code->exit());
@@ -328,7 +325,7 @@ bool LCodeGen::GenerateJumpTable() {
       if (table_entry->needs_frame) {
         DCHECK(!info()->saves_caller_doubles());
         Comment(";;; call deopt with frame");
-        __ MultiPush(cp.bit() | fp.bit() | ra.bit());
+        __ PushCommonFrame();
         __ Call(&needs_frame);
       } else {
         __ Call(&call_deopt_entry);
@@ -342,10 +339,9 @@ bool LCodeGen::GenerateJumpTable() {
       // This variant of deopt can only be used with stubs. Since we don't
       // have a function pointer to install in the stack frame that we're
       // building, install a special marker there instead.
-      DCHECK(info()->IsStub());
       __ li(at, Operand(Smi::FromInt(StackFrame::STUB)));
       __ push(at);
-      __ Addu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
+      DCHECK(info()->IsStub());
     }
 
     Comment(";;; call deopt");
@@ -2992,7 +2988,8 @@ void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
     // Check if the calling frame is an arguments adaptor frame.
     Label done, adapted;
     __ lw(scratch, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
-    __ lw(result, MemOperand(scratch, StandardFrameConstants::kContextOffset));
+    __ lw(result,
+          MemOperand(scratch, CommonFrameConstants::kContextOrFrameTypeOffset));
     __ Xor(temp, result, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
 
     // Result is the frame pointer for the frame if not adapted and for the real