From 59b5b17e813c238187d568450b7155e7398fdf18 Mon Sep 17 00:00:00 2001
From: Jordan Williams <jordan@jwillikers.com>
Date: Wed, 22 Jun 2022 10:41:00 -0500
Subject: [PATCH] Add support for different sync instructions for CodeWarrior
 PPC (#95)

* Use msync or se_isync as appropriate for CodeWarrior PPC

* Un-obsolete sp_counted_base_cw_ppc

* Remove untested VLE_ON branch

* Use the supported compiler intrinsic __sync(); instead of msync asm

* Revert "Use the supported compiler intrinsic __sync(); instead of msync asm"

This reverts commit 9b92ea28f02d709230e5d63a6d96edc7ace251b1.
---
 include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp b/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp
index 81387ce..58a69e6 100644
--- a/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp
+++ b/include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp
@@ -35,8 +35,6 @@ BOOST_PRAGMA_MESSAGE("Using CodeWarrior/PowerPC sp_counted_base")
 
 #endif
 
-BOOST_SP_OBSOLETE()
-
 namespace boost
 {
 
@@ -64,7 +62,11 @@ inline long atomic_decrement( register long * pw )
 
     asm
     {
+#if defined(__PPCZen__) || defined(__PPCe500__) || defined(__PPCe500v2__)
+    msync
+#else
     sync
+#endif
 
 loop: