Remove atomic_compare_and_exchange_bool_rel.

atomic_compare_and_exchange_bool_rel and
catomic_compare_and_exchange_bool_rel are removed and replaced with the
new C11-like atomic_compare_exchange_weak_release.  The concurrent code
in nscd/cache.c has not been reviewed yet, so this patch does not add
detailed comments.

	* nscd/cache.c (cache_add): Use new C11-like atomic operation instead
	of atomic_compare_and_exchange_bool_rel.
	* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise.
	* include/atomic.h (atomic_compare_and_exchange_bool_rel,
	catomic_compare_and_exchange_bool_rel): Remove.
	* sysdeps/aarch64/atomic-machine.h
	(atomic_compare_and_exchange_bool_rel): Likewise.
	* sysdeps/alpha/atomic-machine.h
	(atomic_compare_and_exchange_bool_rel): Likewise.
	* sysdeps/arm/atomic-machine.h
	(atomic_compare_and_exchange_bool_rel): Likewise.
	* sysdeps/mips/atomic-machine.h
	(atomic_compare_and_exchange_bool_rel): Likewise.
	* sysdeps/tile/atomic-machine.h
	(atomic_compare_and_exchange_bool_rel): Likewise.

9 files changed, 0 insertions, 89 deletions

diff --git a/sysdeps/aarch64/atomic-machine.h b/sysdeps/aarch64/atomic-machine.h
index 28c80dc42d..6708b9bc7c 100644
--- a/sysdeps/aarch64/atomic-machine.h
+++ b/sysdeps/aarch64/atomic-machine.h
@@ -115,10 +115,6 @@ typedef uintmax_t uatomic_max_t;
 
 /* Compare and exchange with "release" semantics, ie barrier before.  */
 
-# define atomic_compare_and_exchange_bool_rel(mem, new, old)	\
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,	\
-			mem, new, old, __ATOMIC_RELEASE)
-
 # define atomic_compare_and_exchange_val_rel(mem, new, old)	 \
   __atomic_val_bysize (__arch_compare_and_exchange_val, int,    \
                        mem, new, old, __ATOMIC_RELEASE)
diff --git a/sysdeps/alpha/atomic-machine.h b/sysdeps/alpha/atomic-machine.h
index d96cb7aa93..882d8000f7 100644
--- a/sysdeps/alpha/atomic-machine.h
+++ b/sysdeps/alpha/atomic-machine.h
@@ -210,10 +210,6 @@ typedef uintmax_t uatomic_max_t;
 
 /* Compare and exchange with "release" semantics, ie barrier before.  */
 
-#define atomic_compare_and_exchange_bool_rel(mem, new, old)	\
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,	\
-		        mem, new, old, __MB, "")
-
 #define atomic_compare_and_exchange_val_rel(mem, new, old)	\
   __atomic_val_bysize (__arch_compare_and_exchange_val, int,	\
 		       mem, new, old, __MB, "")
diff --git a/sysdeps/arm/atomic-machine.h b/sysdeps/arm/atomic-machine.h
index dd5e7141a4..916c09a57d 100644
--- a/sysdeps/arm/atomic-machine.h
+++ b/sysdeps/arm/atomic-machine.h
@@ -87,10 +87,6 @@ void __arm_link_error (void);
 
 /* Compare and exchange with "release" semantics, ie barrier before.  */
 
-# define atomic_compare_and_exchange_bool_rel(mem, new, old)    \
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,  \
-                        mem, new, old, __ATOMIC_RELEASE)
-
 # define atomic_compare_and_exchange_val_rel(mem, new, old)      \
   __atomic_val_bysize (__arch_compare_and_exchange_val, int,    \
                        mem, new, old, __ATOMIC_RELEASE)
diff --git a/sysdeps/microblaze/atomic-machine.h b/sysdeps/microblaze/atomic-machine.h
index af7acacc96..229fd4975d 100644
--- a/sysdeps/microblaze/atomic-machine.h
+++ b/sysdeps/microblaze/atomic-machine.h
@@ -47,12 +47,6 @@ typedef uintmax_t uatomic_max_t;
 #define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval)           \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_bool_8_rel(mem, newval, oldval)            \
-  (abort (), 0)
-
-#define __arch_compare_and_exchange_bool_16_rel(mem, newval, oldval)           \
-  (abort (), 0)
-
 #define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval)            \
   ({                                                                           \
       __typeof (*(mem)) __tmp;                                                 \
diff --git a/sysdeps/mips/atomic-machine.h b/sysdeps/mips/atomic-machine.h
index a60e4fbac8..771166b1e2 100644
--- a/sysdeps/mips/atomic-machine.h
+++ b/sysdeps/mips/atomic-machine.h
@@ -149,10 +149,6 @@ typedef uintmax_t uatomic_max_t;
 
 /* Compare and exchange with "release" semantics, ie barrier before.  */
 
-# define atomic_compare_and_exchange_bool_rel(mem, new, old)	\
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,	\
-			mem, new, old, __ATOMIC_RELEASE)
-
 # define atomic_compare_and_exchange_val_rel(mem, new, old)	 \
   __atomic_val_bysize (__arch_compare_and_exchange_val, int,    \
                        mem, new, old, __ATOMIC_RELEASE)
@@ -330,10 +326,6 @@ typedef uintmax_t uatomic_max_t;
 
 /* Compare and exchange with "release" semantics, ie barrier before.  */
 
-# define atomic_compare_and_exchange_bool_rel(mem, new, old)	\
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,	\
-		        mem, new, old, MIPS_SYNC_STR, "")
-
 # define atomic_compare_and_exchange_val_rel(mem, new, old)	\
   __atomic_val_bysize (__arch_compare_and_exchange_val, int,	\
 		       mem, new, old, MIPS_SYNC_STR, "")
diff --git a/sysdeps/powerpc/atomic-machine.h b/sysdeps/powerpc/atomic-machine.h
index 8b0e1e7284..c6b9eea1f4 100644
--- a/sysdeps/powerpc/atomic-machine.h
+++ b/sysdeps/powerpc/atomic-machine.h
@@ -53,12 +53,6 @@ typedef uintmax_t uatomic_max_t;
 #define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_bool_8_rel(mem, newval, oldval) \
-  (abort (), 0)
-
-#define __arch_compare_and_exchange_bool_16_rel(mem, newval, oldval) \
-  (abort (), 0)
-
 #ifdef UP
 # define __ARCH_ACQ_INSTR	""
 # define __ARCH_REL_INSTR	""
diff --git a/sysdeps/powerpc/powerpc32/atomic-machine.h b/sysdeps/powerpc/powerpc32/atomic-machine.h
index 1d407b3490..40a8b7b966 100644
--- a/sysdeps/powerpc/powerpc32/atomic-machine.h
+++ b/sysdeps/powerpc/powerpc32/atomic-machine.h
@@ -58,22 +58,6 @@
   __tmp != 0;								      \
 })
 
-#define __arch_compare_and_exchange_bool_32_rel(mem, newval, oldval)	      \
-({									      \
-  unsigned int __tmp;							      \
-  __asm __volatile (__ARCH_REL_INSTR "\n"				      \
-		    "1:	lwarx	%0,0,%1" MUTEX_HINT_REL "\n"		      \
-		    "	subf.	%0,%2,%0\n"				      \
-		    "	bne	2f\n"					      \
-		    "	stwcx.	%3,0,%1\n"				      \
-		    "	bne-	1b\n"					      \
-		    "2:	"						      \
-		    : "=&r" (__tmp)					      \
-		    : "b" (mem), "r" (oldval), "r" (newval)		      \
-		    : "cr0", "memory");					      \
-  __tmp != 0;								      \
-})
-
 /* Powerpc32 processors don't implement the 64-bit (doubleword) forms of
    load and reserve (ldarx) and store conditional (stdcx.) instructions.
    So for powerpc32 we stub out the 64-bit forms.  */
@@ -83,9 +67,6 @@
 #define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
   (abort (), (__typeof (*mem)) 0)
 
-#define __arch_compare_and_exchange_bool_64_rel(mem, newval, oldval) \
-  (abort (), 0)
-
 #define __arch_compare_and_exchange_val_64_rel(mem, newval, oldval) \
   (abort (), (__typeof (*mem)) 0)
 
diff --git a/sysdeps/powerpc/powerpc64/atomic-machine.h b/sysdeps/powerpc/powerpc64/atomic-machine.h
index 751487a3a7..797131865e 100644
--- a/sysdeps/powerpc/powerpc64/atomic-machine.h
+++ b/sysdeps/powerpc/powerpc64/atomic-machine.h
@@ -58,23 +58,6 @@
   __tmp != 0;								      \
 })
 
-#define __arch_compare_and_exchange_bool_32_rel(mem, newval, oldval) \
-({									      \
-  unsigned int __tmp, __tmp2;						      \
-  __asm __volatile (__ARCH_REL_INSTR "\n"				      \
-		    "   clrldi  %1,%1,32\n"				      \
-		    "1:	lwarx	%0,0,%2" MUTEX_HINT_REL "\n"		      \
-		    "	subf.	%0,%1,%0\n"				      \
-		    "	bne	2f\n"					      \
-		    "	stwcx.	%4,0,%2\n"				      \
-		    "	bne-	1b\n"					      \
-		    "2:	"						      \
-		    : "=&r" (__tmp), "=r" (__tmp2)			      \
-		    : "b" (mem), "1" (oldval), "r" (newval)		      \
-		    : "cr0", "memory");					      \
-  __tmp != 0;								      \
-})
-
 /*
  * Only powerpc64 processors support Load doubleword and reserve index (ldarx)
  * and Store doubleword conditional indexed (stdcx) instructions.  So here
@@ -96,22 +79,6 @@
   __tmp != 0;								      \
 })
 
-#define __arch_compare_and_exchange_bool_64_rel(mem, newval, oldval) \
-({									      \
-  unsigned long	__tmp;							      \
-  __asm __volatile (__ARCH_REL_INSTR "\n"				      \
-		    "1:	ldarx	%0,0,%1" MUTEX_HINT_REL "\n"		      \
-		    "	subf.	%0,%2,%0\n"				      \
-		    "	bne	2f\n"					      \
-		    "	stdcx.	%3,0,%1\n"				      \
-		    "	bne-	1b\n"					      \
-		    "2:	"						      \
-		    : "=&r" (__tmp)					      \
-		    : "b" (mem), "r" (oldval), "r" (newval)		      \
-		    : "cr0", "memory");					      \
-  __tmp != 0;								      \
-})
-
 #define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
   ({									      \
       __typeof (*(mem)) __tmp;						      \
diff --git a/sysdeps/tile/atomic-machine.h b/sysdeps/tile/atomic-machine.h
index 651e0d930a..336518c68d 100644
--- a/sysdeps/tile/atomic-machine.h
+++ b/sysdeps/tile/atomic-machine.h
@@ -55,11 +55,6 @@ typedef uintmax_t uatomic_max_t;
     atomic_full_barrier ();                                     \
     atomic_compare_and_exchange_val_acq ((mem), (n), (o));      \
   })
-#define atomic_compare_and_exchange_bool_rel(mem, n, o)         \
-  ({                                                            \
-    atomic_full_barrier ();                                     \
-    atomic_compare_and_exchange_bool_acq ((mem), (n), (o));     \
-  })
 #define atomic_exchange_rel(mem, n)                             \
   ({                                                            \
     atomic_full_barrier ();                                     \