From: Eric Botcazou <ebotcazou@adacore.com>
Date: Wed, 29 Feb 2012 20:49:30 +0000 (+0000)
Subject: * config/linux/sparc/futex.h (cpu_relax): Read from CC register.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a339c9d606640b6161b8c623041bd6c403b4bcb3;p=gcc.git

* config/linux/sparc/futex.h (cpu_relax): Read from CC register.

From-SVN: r184672
---

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index c0d578f3e9e..44fabda7b36 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,7 @@
+2012-02-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* config/linux/sparc/futex.h (cpu_relax): Read from CC register.
+
 2012-02-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	PR libstdc++/52188
diff --git a/libgomp/config/linux/sparc/futex.h b/libgomp/config/linux/sparc/futex.h
index 6c600446eb9..96e37b820c5 100644
--- a/libgomp/config/linux/sparc/futex.h
+++ b/libgomp/config/linux/sparc/futex.h
@@ -90,9 +90,5 @@ futex_wake (int *addr, int count)
 static inline void
 cpu_relax (void)
 {
-#if defined __arch64__ || defined  __sparc_v9__
-  __asm volatile ("membar #LoadLoad" : : : "memory");
-#else
-  __asm volatile ("" : : : "memory");
-#endif
+  __asm volatile ("rd %%ccr, %%g0" : : : "memory");
 }