PPC/s390: [builtins] Construct builtin frame in String/Number ctors

src/s390/macro-assembler-s390.cc

 // Copyright 2014 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 <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/base/bits.h"
@@ skipping 982 matching lines @@
   // the caller frame pointer, return address and constant pool pointer.
   LoadP(r14, MemOperand(fp, StandardFrameConstants::kCallerPCOffset));
   lay(r1, MemOperand(
               fp, StandardFrameConstants::kCallerSPOffset + stack_adjustment));
   LoadP(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   LoadRR(sp, r1);
   int frame_ends = pc_offset();
   return frame_ends;
 }
 
+void MacroAssembler::EnterBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  CleanseP(r14);
+  Push(r14, fp, context, target);
+  la(fp, MemOperand(sp, 2 * kPointerSize));
+  Push(argc);
+}
+
+void MacroAssembler::LeaveBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  Pop(argc);
+  Pop(r14, fp, context, target);
+}
+
 // ExitFrame layout (probably wrongish.. needs updating)
 //
 //  SP -> previousSP
 //        LK reserved
 //        code
 //        sp_on_exit (for debug?)
 // oldSP->prev SP
 //        LK
 //        <parameters on stack>
 
@@ skipping 4495 matching lines @@
   }
   if (mag.shift > 0) ShiftRightArith(result, result, Operand(mag.shift));
   ExtractBit(r0, dividend, 31);
   AddP(result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390