X87: [Interpreter] Fixes PushArgsAndConstruct builtin to not store any data outside esp.

src/x87/builtins-x87.cc

 // Copyright 2012 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_X87
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 585 matching lines @@
 void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- eax : the number of arguments (not including the receiver)
   //  -- edx : the new target
   //  -- edi : the constructor
   //  -- ebx : the address of the first argument to be pushed. Subsequent
   //           arguments should be consecutive above this, in the same order as
   //           they are to be pushed onto the stack.
   // -----------------------------------
 
-  // Save number of arguments on the stack below where arguments are going
-  // to be pushed.
-  __ mov(ecx, eax);
-  __ neg(ecx);
-  __ mov(Operand(esp, ecx, times_pointer_size, -kPointerSize), eax);
-  __ mov(eax, ecx);
-
   // Pop return address to allow tail-call after pushing arguments.
   __ Pop(ecx);
 
+  // Push edi in the slot meant for receiver. We need an extra register
+  // so store edi temporarily on stack.
+  __ Push(edi);
+
   // Find the address of the last argument.
-  __ shl(eax, kPointerSizeLog2);
-  __ add(eax, ebx);
+  __ mov(edi, eax);
+  __ neg(edi);
+  __ shl(edi, kPointerSizeLog2);
+  __ add(edi, ebx);
 
-  // Push padding for receiver.
-  __ Push(Immediate(0));
+  Generate_InterpreterPushArgs(masm, edi);
 
-  Generate_InterpreterPushArgs(masm, eax);
-
-  // Restore number of arguments from slot on stack.
-  __ mov(eax, Operand(esp, -kPointerSize));
+  // Restore the constructor from slot on stack. It was pushed at the slot
+  // meant for receiver.
+  __ mov(edi, Operand(esp, eax, times_pointer_size, 0));
 
   // Re-push return address.
   __ Push(ecx);
 
   // Call the constructor with unmodified eax, edi, ebi values.
   __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
 }
 
 
 static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) {
@@ skipping 2052 matching lines @@
 
   __ bind(&ok);
   __ ret(0);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87