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locks.h: Include ia64intrin.h.

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* sysdep/ia64/locks.h: Include ia64intrin.h.
        (compare_and_swap): Use __sync_bool_compare_and_swap.
        (compare_and_swap_release): Expose ar.ccv assignment.

From-SVN: r64737
This commit is contained in:
Richard Henderson 2003-03-22 17:38:00 -08:00 committed by Richard Henderson
parent 2298018014
commit de32716c0d
2 changed files with 16 additions and 11 deletions
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6
libjava/ChangeLog
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@ -1,3 +1,9 @@
2003-03-22 Richard Henderson <rth@redhat.com>
* sysdep/ia64/locks.h: Include ia64intrin.h.
(compare_and_swap): Use __sync_bool_compare_and_swap.
(compare_and_swap_release): Expose ar.ccv assignment.
2003-03-22 Andreas Tobler <a.tobler@schweiz.ch>
* include/posix.h: Add suffix for darwin dynamic libraries.

21
libjava/sysdep/ia64/locks.h
View File

@ -11,6 +11,8 @@ details. */
#ifndef __SYSDEP_LOCKS_H__
#define __SYSDEP_LOCKS_H__
#include <ia64intrin.h>
typedef size_t obj_addr_t; /* Integer type big enough for object */
/* address. */
@ -19,11 +21,7 @@ compare_and_swap(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
unsigned long oldval;
__asm__ __volatile__("mov ar.ccv=%4 ;; cmpxchg8.acq %0=%1,%2,ar.ccv"
: "=r"(oldval), "=m"(*addr)
: "r"(new_val), "1"(*addr), "r"(old) : "memory");
return (oldval == old);
return __sync_bool_compare_and_swap (addr, old, new_val);
}
// The fact that *addr is volatile should cause the compiler to
@ -31,7 +29,7 @@ compare_and_swap(volatile obj_addr_t *addr,
inline static void
release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
{
__asm__ __volatile__(" " : : : "memory");
__asm__ __volatile__("" : : : "memory");
*(addr) = new_val;
}
@ -40,11 +38,12 @@ compare_and_swap_release(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
unsigned long oldval;
__asm__ __volatile__("mov ar.ccv=%4 ;; cmpxchg8.rel %0=%1,%2,ar.ccv"
: "=r"(oldval), "=m"(*addr)
: "r"(new_val), "1"(*addr), "r"(old) : "memory");
return (oldval == old);
register unsigned long ar_ccv __asm__("ar.ccv") = old;
unsigned long out;
__asm__ __volatile__("cmpxchg8.rel %0=%1,%2,%4"
: "=r"(out), "=m"(*addr)
: "r"(new_val), "m"(*addr), "d"(ar_ccv) : "memory");
return (out == old);
}
#endif