PPC/s390: Fix to builtin function

src/builtins/s390/builtins-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/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 718 matching lines @@
     __ Push(r2, r2);
 
     // Retrieve smi-tagged arguments count from the stack.
     __ LoadP(r2, MemOperand(fp, ConstructFrameConstants::kLengthOffset));
     __ SmiUntag(r2);
 
     // Retrieve the new target value from the stack. This was placed into the
     // frame description in place of the receiver by the optimizing compiler.
     __ la(r5, MemOperand(fp, StandardFrameConstants::kCallerSPOffset));
     __ ShiftLeftP(ip, r2, Operand(kPointerSizeLog2));
-    __ LoadP(r5, MemOperand(r2, ip));
+    __ LoadP(r5, MemOperand(r5, ip));
 
     // Continue with constructor function invocation.
     __ b(&post_instantiation_deopt_entry);
   }
 }
 
 }  // namespace
 
 void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) {
   Generate_JSConstructStubHelper(masm, false, true, false);
@@ skipping 2498 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390