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gc: fix msvc not using libatomic_ops (#15418)
This commit is contained in:
Emily Hudson
632
thirdparty/libatomic_ops/atomic_ops/sysdeps/gcc/generic-small.h
vendored
Normal file
632
thirdparty/libatomic_ops/atomic_ops/sysdeps/gcc/generic-small.h
vendored
Normal file
@ -0,0 +1,632 @@
|
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/*
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* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
|
||||
* Copyright (c) 1996-1999 by Silicon Graphics. All rights reserved.
|
||||
* Copyright (c) 2003-2011 Hewlett-Packard Development Company, L.P.
|
||||
*
|
||||
*
|
||||
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
|
||||
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
|
||||
*
|
||||
* Permission is hereby granted to use or copy this program
|
||||
* for any purpose, provided the above notices are retained on all copies.
|
||||
* Permission to modify the code and to distribute modified code is granted,
|
||||
* provided the above notices are retained, and a notice that the code was
|
||||
* modified is included with the above copyright notice.
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(AO_GCC_HAVE_char_SYNC_CAS) || !defined(AO_PREFER_GENERALIZED)
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AO_INLINE unsigned/**/char
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AO_char_load(const volatile unsigned/**/char *addr)
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||||
{
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return __atomic_load_n(addr, __ATOMIC_RELAXED);
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}
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#define AO_HAVE_char_load
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AO_INLINE unsigned/**/char
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AO_char_load_acquire(const volatile unsigned/**/char *addr)
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{
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return __atomic_load_n(addr, __ATOMIC_ACQUIRE);
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}
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#define AO_HAVE_char_load_acquire
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/* char_load_read is defined using load and nop_read. */
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/* TODO: Map it to ACQUIRE. We should be strengthening the read and */
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/* write stuff to the more general acquire/release versions. It almost */
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/* never makes a difference and is much less error-prone. */
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||||
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/* char_load_full is generalized using load and nop_full. */
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/* TODO: Map it to SEQ_CST and clarify the documentation. */
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/* TODO: Map load_dd_acquire_read to ACQUIRE. Ideally it should be */
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/* mapped to CONSUME, but the latter is currently broken. */
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||||
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/* char_store_full definition is omitted similar to load_full reason. */
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/* TODO: Map store_write to RELEASE. */
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#ifndef AO_SKIPATOMIC_char_store
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AO_INLINE void
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AO_char_store(volatile unsigned/**/char *addr, unsigned/**/char value)
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{
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__atomic_store_n(addr, value, __ATOMIC_RELAXED);
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}
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# define AO_HAVE_char_store
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#endif
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#ifndef AO_SKIPATOMIC_char_store_release
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AO_INLINE void
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AO_char_store_release(volatile unsigned/**/char *addr, unsigned/**/char value)
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{
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__atomic_store_n(addr, value, __ATOMIC_RELEASE);
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}
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# define AO_HAVE_char_store_release
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#endif
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#endif /* !AO_GCC_HAVE_char_SYNC_CAS || !AO_PREFER_GENERALIZED */
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#ifdef AO_GCC_HAVE_char_SYNC_CAS
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AO_INLINE unsigned/**/char
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AO_char_fetch_compare_and_swap(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
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{
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(void)__atomic_compare_exchange_n(addr,
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&old_val /* p_expected */,
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new_val /* desired */,
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0 /* is_weak: false */,
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__ATOMIC_RELAXED /* success */,
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__ATOMIC_RELAXED /* failure */);
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return old_val;
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}
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# define AO_HAVE_char_fetch_compare_and_swap
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AO_INLINE unsigned/**/char
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AO_char_fetch_compare_and_swap_acquire(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
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{
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(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
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return old_val;
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}
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# define AO_HAVE_char_fetch_compare_and_swap_acquire
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AO_INLINE unsigned/**/char
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AO_char_fetch_compare_and_swap_release(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
|
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{
|
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(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
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__ATOMIC_RELEASE,
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__ATOMIC_RELAXED /* failure */);
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return old_val;
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}
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# define AO_HAVE_char_fetch_compare_and_swap_release
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AO_INLINE unsigned/**/char
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AO_char_fetch_compare_and_swap_full(volatile unsigned/**/char *addr,
|
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unsigned/**/char old_val, unsigned/**/char new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
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__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
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return old_val;
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}
|
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# define AO_HAVE_char_fetch_compare_and_swap_full
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# ifndef AO_GENERALIZE_ASM_BOOL_CAS
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AO_INLINE int
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AO_char_compare_and_swap(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
|
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{
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return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_RELAXED, __ATOMIC_RELAXED);
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}
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# define AO_HAVE_char_compare_and_swap
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AO_INLINE int
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AO_char_compare_and_swap_acquire(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
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{
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return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
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}
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# define AO_HAVE_char_compare_and_swap_acquire
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AO_INLINE int
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AO_char_compare_and_swap_release(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
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{
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return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_RELEASE,
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__ATOMIC_RELAXED /* failure */);
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}
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# define AO_HAVE_char_compare_and_swap_release
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AO_INLINE int
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AO_char_compare_and_swap_full(volatile unsigned/**/char *addr,
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unsigned/**/char old_val, unsigned/**/char new_val)
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||||
{
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return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_ACQ_REL,
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__ATOMIC_ACQUIRE /* failure */);
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||||
}
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# define AO_HAVE_char_compare_and_swap_full
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# endif /* !AO_GENERALIZE_ASM_BOOL_CAS */
|
||||
|
||||
#endif /* AO_GCC_HAVE_char_SYNC_CAS */
|
||||
/*
|
||||
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
|
||||
* Copyright (c) 1996-1999 by Silicon Graphics. All rights reserved.
|
||||
* Copyright (c) 2003-2011 Hewlett-Packard Development Company, L.P.
|
||||
*
|
||||
*
|
||||
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
|
||||
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
|
||||
*
|
||||
* Permission is hereby granted to use or copy this program
|
||||
* for any purpose, provided the above notices are retained on all copies.
|
||||
* Permission to modify the code and to distribute modified code is granted,
|
||||
* provided the above notices are retained, and a notice that the code was
|
||||
* modified is included with the above copyright notice.
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(AO_GCC_HAVE_short_SYNC_CAS) || !defined(AO_PREFER_GENERALIZED)
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AO_INLINE unsigned/**/short
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AO_short_load(const volatile unsigned/**/short *addr)
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{
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return __atomic_load_n(addr, __ATOMIC_RELAXED);
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}
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#define AO_HAVE_short_load
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AO_INLINE unsigned/**/short
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AO_short_load_acquire(const volatile unsigned/**/short *addr)
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{
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return __atomic_load_n(addr, __ATOMIC_ACQUIRE);
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}
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#define AO_HAVE_short_load_acquire
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||||
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/* short_load_read is defined using load and nop_read. */
|
||||
/* TODO: Map it to ACQUIRE. We should be strengthening the read and */
|
||||
/* write stuff to the more general acquire/release versions. It almost */
|
||||
/* never makes a difference and is much less error-prone. */
|
||||
|
||||
/* short_load_full is generalized using load and nop_full. */
|
||||
/* TODO: Map it to SEQ_CST and clarify the documentation. */
|
||||
|
||||
/* TODO: Map load_dd_acquire_read to ACQUIRE. Ideally it should be */
|
||||
/* mapped to CONSUME, but the latter is currently broken. */
|
||||
|
||||
/* short_store_full definition is omitted similar to load_full reason. */
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|
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/* TODO: Map store_write to RELEASE. */
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#ifndef AO_SKIPATOMIC_short_store
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AO_INLINE void
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AO_short_store(volatile unsigned/**/short *addr, unsigned/**/short value)
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{
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__atomic_store_n(addr, value, __ATOMIC_RELAXED);
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}
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# define AO_HAVE_short_store
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#endif
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#ifndef AO_SKIPATOMIC_short_store_release
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AO_INLINE void
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AO_short_store_release(volatile unsigned/**/short *addr, unsigned/**/short value)
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{
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__atomic_store_n(addr, value, __ATOMIC_RELEASE);
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}
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# define AO_HAVE_short_store_release
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#endif
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#endif /* !AO_GCC_HAVE_short_SYNC_CAS || !AO_PREFER_GENERALIZED */
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#ifdef AO_GCC_HAVE_short_SYNC_CAS
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AO_INLINE unsigned/**/short
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AO_short_fetch_compare_and_swap(volatile unsigned/**/short *addr,
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unsigned/**/short old_val, unsigned/**/short new_val)
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{
|
||||
(void)__atomic_compare_exchange_n(addr,
|
||||
&old_val /* p_expected */,
|
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new_val /* desired */,
|
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0 /* is_weak: false */,
|
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__ATOMIC_RELAXED /* success */,
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__ATOMIC_RELAXED /* failure */);
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return old_val;
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}
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# define AO_HAVE_short_fetch_compare_and_swap
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AO_INLINE unsigned/**/short
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AO_short_fetch_compare_and_swap_acquire(volatile unsigned/**/short *addr,
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unsigned/**/short old_val, unsigned/**/short new_val)
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{
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(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
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return old_val;
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}
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# define AO_HAVE_short_fetch_compare_and_swap_acquire
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AO_INLINE unsigned/**/short
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AO_short_fetch_compare_and_swap_release(volatile unsigned/**/short *addr,
|
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unsigned/**/short old_val, unsigned/**/short new_val)
|
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{
|
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(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
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__ATOMIC_RELEASE,
|
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__ATOMIC_RELAXED /* failure */);
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return old_val;
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}
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# define AO_HAVE_short_fetch_compare_and_swap_release
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AO_INLINE unsigned/**/short
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AO_short_fetch_compare_and_swap_full(volatile unsigned/**/short *addr,
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unsigned/**/short old_val, unsigned/**/short new_val)
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{
|
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(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
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__ATOMIC_ACQ_REL,
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__ATOMIC_ACQUIRE /* failure */);
|
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return old_val;
|
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}
|
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# define AO_HAVE_short_fetch_compare_and_swap_full
|
||||
|
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# ifndef AO_GENERALIZE_ASM_BOOL_CAS
|
||||
AO_INLINE int
|
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AO_short_compare_and_swap(volatile unsigned/**/short *addr,
|
||||
unsigned/**/short old_val, unsigned/**/short new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELAXED, __ATOMIC_RELAXED);
|
||||
}
|
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# define AO_HAVE_short_compare_and_swap
|
||||
|
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AO_INLINE int
|
||||
AO_short_compare_and_swap_acquire(volatile unsigned/**/short *addr,
|
||||
unsigned/**/short old_val, unsigned/**/short new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
|
||||
}
|
||||
# define AO_HAVE_short_compare_and_swap_acquire
|
||||
|
||||
AO_INLINE int
|
||||
AO_short_compare_and_swap_release(volatile unsigned/**/short *addr,
|
||||
unsigned/**/short old_val, unsigned/**/short new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELEASE,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
}
|
||||
# define AO_HAVE_short_compare_and_swap_release
|
||||
|
||||
AO_INLINE int
|
||||
AO_short_compare_and_swap_full(volatile unsigned/**/short *addr,
|
||||
unsigned/**/short old_val, unsigned/**/short new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
|
||||
}
|
||||
# define AO_HAVE_short_compare_and_swap_full
|
||||
|
||||
# endif /* !AO_GENERALIZE_ASM_BOOL_CAS */
|
||||
|
||||
#endif /* AO_GCC_HAVE_short_SYNC_CAS */
|
||||
/*
|
||||
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
|
||||
* Copyright (c) 1996-1999 by Silicon Graphics. All rights reserved.
|
||||
* Copyright (c) 2003-2011 Hewlett-Packard Development Company, L.P.
|
||||
*
|
||||
*
|
||||
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
|
||||
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
|
||||
*
|
||||
* Permission is hereby granted to use or copy this program
|
||||
* for any purpose, provided the above notices are retained on all copies.
|
||||
* Permission to modify the code and to distribute modified code is granted,
|
||||
* provided the above notices are retained, and a notice that the code was
|
||||
* modified is included with the above copyright notice.
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(AO_GCC_HAVE_int_SYNC_CAS) || !defined(AO_PREFER_GENERALIZED)
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_load(const volatile unsigned *addr)
|
||||
{
|
||||
return __atomic_load_n(addr, __ATOMIC_RELAXED);
|
||||
}
|
||||
#define AO_HAVE_int_load
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_load_acquire(const volatile unsigned *addr)
|
||||
{
|
||||
return __atomic_load_n(addr, __ATOMIC_ACQUIRE);
|
||||
}
|
||||
#define AO_HAVE_int_load_acquire
|
||||
|
||||
/* int_load_read is defined using load and nop_read. */
|
||||
/* TODO: Map it to ACQUIRE. We should be strengthening the read and */
|
||||
/* write stuff to the more general acquire/release versions. It almost */
|
||||
/* never makes a difference and is much less error-prone. */
|
||||
|
||||
/* int_load_full is generalized using load and nop_full. */
|
||||
/* TODO: Map it to SEQ_CST and clarify the documentation. */
|
||||
|
||||
/* TODO: Map load_dd_acquire_read to ACQUIRE. Ideally it should be */
|
||||
/* mapped to CONSUME, but the latter is currently broken. */
|
||||
|
||||
/* int_store_full definition is omitted similar to load_full reason. */
|
||||
|
||||
/* TODO: Map store_write to RELEASE. */
|
||||
|
||||
#ifndef AO_SKIPATOMIC_int_store
|
||||
AO_INLINE void
|
||||
AO_int_store(volatile unsigned *addr, unsigned value)
|
||||
{
|
||||
__atomic_store_n(addr, value, __ATOMIC_RELAXED);
|
||||
}
|
||||
# define AO_HAVE_int_store
|
||||
#endif
|
||||
|
||||
#ifndef AO_SKIPATOMIC_int_store_release
|
||||
AO_INLINE void
|
||||
AO_int_store_release(volatile unsigned *addr, unsigned value)
|
||||
{
|
||||
__atomic_store_n(addr, value, __ATOMIC_RELEASE);
|
||||
}
|
||||
# define AO_HAVE_int_store_release
|
||||
#endif
|
||||
|
||||
#endif /* !AO_GCC_HAVE_int_SYNC_CAS || !AO_PREFER_GENERALIZED */
|
||||
|
||||
#ifdef AO_GCC_HAVE_int_SYNC_CAS
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_fetch_compare_and_swap(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr,
|
||||
&old_val /* p_expected */,
|
||||
new_val /* desired */,
|
||||
0 /* is_weak: false */,
|
||||
__ATOMIC_RELAXED /* success */,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_int_fetch_compare_and_swap
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_fetch_compare_and_swap_acquire(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_int_fetch_compare_and_swap_acquire
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_fetch_compare_and_swap_release(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELEASE,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_int_fetch_compare_and_swap_release
|
||||
|
||||
AO_INLINE unsigned
|
||||
AO_int_fetch_compare_and_swap_full(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_int_fetch_compare_and_swap_full
|
||||
|
||||
# ifndef AO_GENERALIZE_ASM_BOOL_CAS
|
||||
AO_INLINE int
|
||||
AO_int_compare_and_swap(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELAXED, __ATOMIC_RELAXED);
|
||||
}
|
||||
# define AO_HAVE_int_compare_and_swap
|
||||
|
||||
AO_INLINE int
|
||||
AO_int_compare_and_swap_acquire(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
|
||||
}
|
||||
# define AO_HAVE_int_compare_and_swap_acquire
|
||||
|
||||
AO_INLINE int
|
||||
AO_int_compare_and_swap_release(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELEASE,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
}
|
||||
# define AO_HAVE_int_compare_and_swap_release
|
||||
|
||||
AO_INLINE int
|
||||
AO_int_compare_and_swap_full(volatile unsigned *addr,
|
||||
unsigned old_val, unsigned new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
|
||||
}
|
||||
# define AO_HAVE_int_compare_and_swap_full
|
||||
|
||||
# endif /* !AO_GENERALIZE_ASM_BOOL_CAS */
|
||||
|
||||
#endif /* AO_GCC_HAVE_int_SYNC_CAS */
|
||||
/*
|
||||
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
|
||||
* Copyright (c) 1996-1999 by Silicon Graphics. All rights reserved.
|
||||
* Copyright (c) 2003-2011 Hewlett-Packard Development Company, L.P.
|
||||
*
|
||||
*
|
||||
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
|
||||
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
|
||||
*
|
||||
* Permission is hereby granted to use or copy this program
|
||||
* for any purpose, provided the above notices are retained on all copies.
|
||||
* Permission to modify the code and to distribute modified code is granted,
|
||||
* provided the above notices are retained, and a notice that the code was
|
||||
* modified is included with the above copyright notice.
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(AO_GCC_HAVE_SYNC_CAS) || !defined(AO_PREFER_GENERALIZED)
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_load(const volatile AO_t *addr)
|
||||
{
|
||||
return __atomic_load_n(addr, __ATOMIC_RELAXED);
|
||||
}
|
||||
#define AO_HAVE_load
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_load_acquire(const volatile AO_t *addr)
|
||||
{
|
||||
return __atomic_load_n(addr, __ATOMIC_ACQUIRE);
|
||||
}
|
||||
#define AO_HAVE_load_acquire
|
||||
|
||||
/* load_read is defined using load and nop_read. */
|
||||
/* TODO: Map it to ACQUIRE. We should be strengthening the read and */
|
||||
/* write stuff to the more general acquire/release versions. It almost */
|
||||
/* never makes a difference and is much less error-prone. */
|
||||
|
||||
/* load_full is generalized using load and nop_full. */
|
||||
/* TODO: Map it to SEQ_CST and clarify the documentation. */
|
||||
|
||||
/* TODO: Map load_dd_acquire_read to ACQUIRE. Ideally it should be */
|
||||
/* mapped to CONSUME, but the latter is currently broken. */
|
||||
|
||||
/* store_full definition is omitted similar to load_full reason. */
|
||||
|
||||
/* TODO: Map store_write to RELEASE. */
|
||||
|
||||
#ifndef AO_SKIPATOMIC_store
|
||||
AO_INLINE void
|
||||
AO_store(volatile AO_t *addr, AO_t value)
|
||||
{
|
||||
__atomic_store_n(addr, value, __ATOMIC_RELAXED);
|
||||
}
|
||||
# define AO_HAVE_store
|
||||
#endif
|
||||
|
||||
#ifndef AO_SKIPATOMIC_store_release
|
||||
AO_INLINE void
|
||||
AO_store_release(volatile AO_t *addr, AO_t value)
|
||||
{
|
||||
__atomic_store_n(addr, value, __ATOMIC_RELEASE);
|
||||
}
|
||||
# define AO_HAVE_store_release
|
||||
#endif
|
||||
|
||||
#endif /* !AO_GCC_HAVE_SYNC_CAS || !AO_PREFER_GENERALIZED */
|
||||
|
||||
#ifdef AO_GCC_HAVE_SYNC_CAS
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_fetch_compare_and_swap(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr,
|
||||
&old_val /* p_expected */,
|
||||
new_val /* desired */,
|
||||
0 /* is_weak: false */,
|
||||
__ATOMIC_RELAXED /* success */,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_fetch_compare_and_swap
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_fetch_compare_and_swap_acquire(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_fetch_compare_and_swap_acquire
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_fetch_compare_and_swap_release(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELEASE,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_fetch_compare_and_swap_release
|
||||
|
||||
AO_INLINE AO_t
|
||||
AO_fetch_compare_and_swap_full(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
(void)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
|
||||
return old_val;
|
||||
}
|
||||
# define AO_HAVE_fetch_compare_and_swap_full
|
||||
|
||||
# ifndef AO_GENERALIZE_ASM_BOOL_CAS
|
||||
AO_INLINE int
|
||||
AO_compare_and_swap(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELAXED, __ATOMIC_RELAXED);
|
||||
}
|
||||
# define AO_HAVE_compare_and_swap
|
||||
|
||||
AO_INLINE int
|
||||
AO_compare_and_swap_acquire(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
|
||||
}
|
||||
# define AO_HAVE_compare_and_swap_acquire
|
||||
|
||||
AO_INLINE int
|
||||
AO_compare_and_swap_release(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_RELEASE,
|
||||
__ATOMIC_RELAXED /* failure */);
|
||||
}
|
||||
# define AO_HAVE_compare_and_swap_release
|
||||
|
||||
AO_INLINE int
|
||||
AO_compare_and_swap_full(volatile AO_t *addr,
|
||||
AO_t old_val, AO_t new_val)
|
||||
{
|
||||
return (int)__atomic_compare_exchange_n(addr, &old_val, new_val, 0,
|
||||
__ATOMIC_ACQ_REL,
|
||||
__ATOMIC_ACQUIRE /* failure */);
|
||||
}
|
||||
# define AO_HAVE_compare_and_swap_full
|
||||
|
||||
# endif /* !AO_GENERALIZE_ASM_BOOL_CAS */
|
||||
|
||||
#endif /* AO_GCC_HAVE_SYNC_CAS */
|
||||
Reference in New Issue
Block a user