Index: lib/Basic/Targets/OSTargets.h
===================================================================
--- lib/Basic/Targets/OSTargets.h
+++ lib/Basic/Targets/OSTargets.h
@@ -485,6 +485,7 @@
     default:
     case llvm::Triple::x86_64:
       this->MCountName = ".mcount";
+      this->NewAlign = 256;
       break;
     }
   }
Index: test/Preprocessor/init.c
===================================================================
--- test/Preprocessor/init.c
+++ test/Preprocessor/init.c
@@ -8965,6 +8965,9 @@
 // PS4:#define __x86_64__ 1
 // PS4:#define unix 1
 //
+// RUN: %clang_cc1 -x c++ -E -dM -ffreestanding -triple=x86_64-scei-ps4 < /dev/null | FileCheck -match-full-lines -check-prefix PS4-CXX %s
+// PS4-CXX:#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 32UL
+//
 // RUN: %clang_cc1 -E -dM -triple=x86_64-pc-mingw32 < /dev/null | FileCheck -match-full-lines -check-prefix X86-64-DECLSPEC %s
 // RUN: %clang_cc1 -E -dM -fms-extensions -triple=x86_64-unknown-mingw32 < /dev/null | FileCheck -match-full-lines -check-prefix X86-64-DECLSPEC %s
 // X86-64-DECLSPEC: #define __declspec{{.*}}