Fix fast API call for MinGW-w64

src/x64/macro-assembler-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 639 matching lines @@
 
 static int Offset(ExternalReference ref0, ExternalReference ref1) {
   int64_t offset = (ref0.address() - ref1.address());
   // Check that fits into int.
   ASSERT(static_cast<int>(offset) == offset);
   return static_cast<int>(offset);
 }
 
 
 void MacroAssembler::PrepareCallApiFunction(int arg_stack_space) {
-#ifdef _WIN64
+#if defined(_WIN64) && !defined(__MINGW64__)
   // We need to prepare a slot for result handle on stack and put
   // a pointer to it into 1st arg register.
   EnterApiExitFrame(arg_stack_space + 1);
 
   // rcx must be used to pass the pointer to the return value slot.
   lea(rcx, StackSpaceOperand(arg_stack_space));
 #else
   EnterApiExitFrame(arg_stack_space);
 #endif
 }
@@ skipping 27 matching lines @@
   Register base_reg = r15;
   movq(base_reg, next_address);
   movq(prev_next_address_reg, Operand(base_reg, kNextOffset));
   movq(prev_limit_reg, Operand(base_reg, kLimitOffset));
   addl(Operand(base_reg, kLevelOffset), Immediate(1));
   // Call the api function!
   movq(rax, reinterpret_cast<int64_t>(function_address),
        RelocInfo::RUNTIME_ENTRY);
   call(rax);
 
-#ifdef _WIN64
+#if defined(_WIN64) && !defined(__MINGW64__)
   // rax keeps a pointer to v8::Handle, unpack it.
   movq(rax, Operand(rax, 0));
 #endif
   // Check if the result handle holds 0.
   testq(rax, rax);
   j(zero, &empty_result);
   // It was non-zero.  Dereference to get the result value.
   movq(rax, Operand(rax, 0));
   bind(&prologue);
 
@@ skipping 3703 matching lines @@
   bind(&check_prototype);
   movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset));
   cmpq(rcx, null_value);
   j(not_equal, &next);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64