[builtins] Construct builtin frame in String/Number ctors

src/mips/macro-assembler-mips.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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 5893 matching lines @@
   Addu(fp, sp, Operand(fp_offset));
 }
 
 
 void MacroAssembler::LeaveFrame(StackFrame::Type type) {
   addiu(sp, fp, 2 * kPointerSize);
   lw(ra, MemOperand(fp, 1 * kPointerSize));
   lw(fp, MemOperand(fp, 0 * kPointerSize));
 }
 
+void MacroAssembler::EnterBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  Push(ra, fp);
+  Move(fp, sp);
+  Push(context, target, argc);
+}
+
+void MacroAssembler::LeaveBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  Pop(context, target, argc);
+  Pop(ra, fp);
+}
+
 void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space,
                                     StackFrame::Type frame_type) {
   DCHECK(frame_type == StackFrame::EXIT ||
          frame_type == StackFrame::BUILTIN_EXIT);
 
   // Set up the frame structure on the stack.
   STATIC_ASSERT(2 * kPointerSize == ExitFrameConstants::kCallerSPDisplacement);
   STATIC_ASSERT(1 * kPointerSize == ExitFrameConstants::kCallerPCOffset);
   STATIC_ASSERT(0 * kPointerSize == ExitFrameConstants::kCallerFPOffset);
 
@@ skipping 991 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS