PPC/s390: [ic] Use StrictEqual/Equal builtins for CompareIC slow path.

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 618 matching lines @@
   } else {
     StringHelper::GenerateCompareFlatOneByteStrings(masm, lhs, rhs, r4, r5, r6);
   }
   // Never falls through to here.
 
   __ bind(&slow);
 
   if (cc == eq) {
     {
       FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
-      __ Push(lhs, rhs);
-      __ CallRuntime(strict() ? Runtime::kStrictEqual : Runtime::kEqual);
+      __ Push(cp);
+      __ Call(strict() ? isolate()->builtins()->StrictEqual()
+                       : isolate()->builtins()->Equal(),
+              RelocInfo::CODE_TARGET);
+      __ Pop(cp);
     }
     // Turn true into 0 and false into some non-zero value.
     STATIC_ASSERT(EQUAL == 0);
     __ LoadRoot(r3, Heap::kTrueValueRootIndex);
     __ SubP(r2, r2, r3);
     __ Ret();
   } else {
     __ Push(lhs, rhs);
     int ncr;  // NaN compare result
     if (cc == lt || cc == le) {
@@ skipping 3697 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