PPC/s390: [stubs] Port CreateWeakCellStub to turbofan

src/s390/code-stubs-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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1697 matching lines @@
 static void CallStubInRecordCallTarget(MacroAssembler* masm, CodeStub* stub) {
   // r2 : number of arguments to the construct function
   // r3 : the function to call
   // r4 : feedback vector
   // r5 : slot in feedback vector (Smi)
   FrameScope scope(masm, StackFrame::INTERNAL);
 
   // Number-of-arguments register must be smi-tagged to call out.
   __ SmiTag(r2);
   __ Push(r5, r4, r3, r2);
+  __ Push(cp);
 
   __ CallStub(stub);
 
+  __ Pop(cp);
   __ Pop(r5, r4, r3, r2);
   __ SmiUntag(r2);
 }
 
 static void GenerateRecordCallTarget(MacroAssembler* masm) {
   // Cache the called function in a feedback vector slot.  Cache states
   // are uninitialized, monomorphic (indicated by a JSFunction), and
   // megamorphic.
   // r2 : number of arguments to the construct function
   // r3 : the function to call
@@ skipping 283 matching lines @@
   __ LoadSmiLiteral(r7, Smi::FromInt(1));
   __ StoreP(r7, FieldMemOperand(r8, count_offset), r0);
 
   // Store the function. Use a stub since we need a frame for allocation.
   // r4 - vector
   // r5 - slot
   // r3 - function
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
     CreateWeakCellStub create_stub(masm->isolate());
-    __ Push(r3);
+    __ Push(cp, r3);
     __ CallStub(&create_stub);
-    __ Pop(r3);
+    __ Pop(cp, r3);
   }
 
   __ b(&call_function);
 
   // We are here because tracing is on or we encountered a MISS case we can't
   // handle here.
   __ bind(&miss);
   GenerateMiss(masm);
 
   __ b(&call);
@@ skipping 3355 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390