PPC/s390: [sim] Consistent support for C calls with up to 9 args

src/ppc/macro-assembler-ppc.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_PPC
 
 #include "src/base/bits.h"
@@ skipping 2942 matching lines @@
 
 
 void MacroAssembler::CallCFunction(Register function, int num_arguments) {
   CallCFunction(function, num_arguments, 0);
 }
 
 
 void MacroAssembler::CallCFunctionHelper(Register function,
                                          int num_reg_arguments,
                                          int num_double_arguments) {
+  DCHECK_LE(num_reg_arguments + num_double_arguments, kMaxCParameters);
   DCHECK(has_frame());
 
   // Just call directly. The function called cannot cause a GC, or
   // allow preemption, so the return address in the link register
   // stays correct.
   Register dest = function;
   if (ABI_USES_FUNCTION_DESCRIPTORS) {
     // AIX/PPC64BE Linux uses a function descriptor. When calling C code be
     // aware of this descriptor and pick up values from it
     LoadP(ToRegister(ABI_TOC_REGISTER), MemOperand(function, kPointerSize));
@@ skipping 1285 matching lines @@
   }
   if (mag.shift > 0) srawi(result, result, mag.shift);
   ExtractBit(r0, dividend, 31);
   add(result, result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC