PPC/s390: [stubs] Also port the CallICStub to CSA.

src/full-codegen/s390/full-codegen-s390.cc

 // Copyright 2015 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/ast/compile-time-value.h"
 #include "src/ast/scopes.h"
 #include "src/builtins/builtins-constructor.h"
 #include "src/code-factory.h"
@@ skipping 1842 matching lines @@
     if (FLAG_trace) {
       __ CallRuntime(Runtime::kTraceTailCall);
     }
     // Update profiling counters before the tail call since we will
     // not return to this function.
     EmitProfilingCounterHandlingForReturnSequence(true);
   }
   Handle<Code> code =
       CodeFactory::CallICTrampoline(isolate(), mode, expr->tail_call_mode())
           .code();
-  __ LoadSmiLiteral(r5, SmiFromSlot(expr->CallFeedbackICSlot()));
+  __ mov(r5, Operand(IntFromSlot(expr->CallFeedbackICSlot())));

[john.yan, 2017/02/02 16:02:17]

using Load() is better.

   __ LoadP(r3, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
   __ mov(r2, Operand(arg_count));
   CallIC(code);
   OperandStackDepthDecrement(arg_count + 1);
 
   RecordJSReturnSite(expr);
   RestoreContext();
   context()->DropAndPlug(1, r2);
 }
 
@@ skipping 911 matching lines @@
   USE(kOSRBranchInstruction);
   DCHECK(kOSRBranchInstruction == br_instr);
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OnStackReplacement()->entry());
   return ON_STACK_REPLACEMENT;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_S390