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authorJoseph Myers <joseph@codesourcery.com>2012-11-17 03:35:27 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-11-17 03:35:27 +0000
commit018f9a78d3d92a9ede6298a65c5edfef5805d5d6 (patch)
treea1ad6f9c5e597cc17c58d4e03e24d559d944ea18 /ports
parent150dc1a05a8028efb5bfdc79158e631384d1cd5b (diff)
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Fix "set but not used" warnings from MIPS bits/atomic.h.
Diffstat (limited to 'ports')
-rw-r--r--ports/ChangeLog.mips9
-rw-r--r--ports/sysdeps/mips/bits/atomic.h8
2 files changed, 13 insertions, 4 deletions
diff --git a/ports/ChangeLog.mips b/ports/ChangeLog.mips
index cdf4ea3c54..f5e73f8b30 100644
--- a/ports/ChangeLog.mips
+++ b/ports/ChangeLog.mips
@@ -1,3 +1,12 @@
+2012-11-17  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/mips/bits/atomic.h
+	(__arch_compare_and_exchange_bool_8_int): Mark __PREV variable
+	with __attribute__ ((unused)).
+	(__arch_compare_and_exchange_bool_16_int): Likewise.
+	(__arch_compare_and_exchange_bool_32_int): Likewise.
+	(__arch_compare_and_exchange_bool_64_int): Likewise.
+
 2012-11-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
 
         * sysdeps/mips/memmove.c: New file.  Use memcpy for forward memmove.
diff --git a/ports/sysdeps/mips/bits/atomic.h b/ports/sysdeps/mips/bits/atomic.h
index 749e166908..c5a26b927d 100644
--- a/ports/sysdeps/mips/bits/atomic.h
+++ b/ports/sysdeps/mips/bits/atomic.h
@@ -261,22 +261,22 @@ typedef uintmax_t uatomic_max_t;
 /* For all "bool" routines, we return FALSE if exchange succesful.  */
 
 # define __arch_compare_and_exchange_bool_8_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp;					\
+({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp;		\
    __arch_compare_and_exchange_xxx_8_int(mem, new, old, rel, acq);	\
    !__cmp; })
 
 # define __arch_compare_and_exchange_bool_16_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp;					\
+({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp;		\
    __arch_compare_and_exchange_xxx_16_int(mem, new, old, rel, acq);	\
    !__cmp; })
 
 # define __arch_compare_and_exchange_bool_32_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp;					\
+({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp;		\
    __arch_compare_and_exchange_xxx_32_int(mem, new, old, rel, acq);	\
    !__cmp; })
 
 # define __arch_compare_and_exchange_bool_64_int(mem, new, old, rel, acq) \
-({ typeof (*mem) __prev; int __cmp;					\
+({ typeof (*mem) __prev __attribute__ ((unused)); int __cmp;		\
    __arch_compare_and_exchange_xxx_64_int(mem, new, old, rel, acq);	\
    !__cmp; })