gregames 2003/12/05 12:15:33
Modified: atomic/unix apr_atomic.c
Log:
intel_atomic_add32: re-specify asm inputs and outputs, after RTFMing and
Googling
Revision Changes Path
1.33 +5 -4 apr/atomic/unix/apr_atomic.c
Index: apr_atomic.c
===================================================================
RCS file: /home/cvs/apr/atomic/unix/apr_atomic.c,v
retrieving revision 1.32
retrieving revision 1.33
diff -u -d -b -u -r1.32 -r1.33
--- apr_atomic.c 5 Dec 2003 18:57:21 -0000 1.32
+++ apr_atomic.c 5 Dec 2003 20:15:32 -0000 1.33
@@ -108,10 +108,11 @@
static apr_uint32_t inline intel_atomic_add32(volatile apr_uint32_t *mem,
apr_uint32_t val)
{
- asm volatile ("lock; xaddl %1, (%2)"
- : "=r"(val) /* output, same as 1st input */
- : "0"(val), "r"(mem) /* inputs */
- : "%1","memory"); /* tell gcc they are clobbered */
+ asm volatile ("lock; xaddl %0,%1"
+ : "+r"(val), "+m"(*mem) /* outputs and inputs */
+ :
+ : "memory"); /*XXX is this needed? it knows
that
+ *mem is an output */
return val;
}
