From 9b92ea28f02d709230e5d63a6d96edc7ace251b1 Mon Sep 17 00:00:00 2001
From: Jordan Williams <jordan@jwillikers.com>
Date: Tue, 21 Jun 2022 21:09:01 -0500
Subject: [PATCH] Use the supported compiler intrinsic __sync(); instead of
 msync asm

---
 include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp | 8 ++------
 1 file changed, 2 insertions(+), 6 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 58a69e6..1d58fbe 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
@@ -60,14 +60,10 @@ inline long atomic_decrement( register long * pw )
 {
     register int a;
 
+    __sync();
+
     asm
     {
-#if defined(__PPCZen__) || defined(__PPCe500__) || defined(__PPCe500v2__)
-    msync
-#else
-    sync
-#endif
-
 loop:
 
     lwarx   a, 0, pw