PPC/s390: Fix to builtin function

src/builtins/s390/builtins-s390.cc

Index: src/builtins/s390/builtins-s390.cc
diff --git a/src/builtins/s390/builtins-s390.cc b/src/builtins/s390/builtins-s390.cc
index d65bb68b0ef03fa640378b8b379a91173cff8bf5..c2e3f52b0edaf986317d0243b57228940fd26cd4 100644
--- a/src/builtins/s390/builtins-s390.cc
+++ b/src/builtins/s390/builtins-s390.cc
@@ -736,7 +736,7 @@ void Generate_JSConstructStubHelper(MacroAssembler* masm, bool is_api_function,
     // 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);