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C-SKY: Define HAVE_sync_compare_and_swap*.

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The SYNC operations are implemented as library functions, not
NSN patterns.  As a result, the HAVE defines for the patterns are
not defined.  We need to define them to generate the corresponding
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
defines.

gcc/
	* config/csky/csky-linux-elf.h (HAVE_sync_compare_and_swapqi):
	Defined.
	(HAVE_sync_compare_and_swaphi): Likewise.
	(HAVE_sync_compare_and_swapsi): Likewise.
This commit is contained in:
Cooper Qu 2021-05-28 17:02:05 +08:00 • committed by Xianmiao Qu
parent c94424b0ed
commit f69a1aee15
1 changed files with 10 additions and 0 deletions
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10
gcc/config/csky/csky-linux-elf.h
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@ -133,3 +133,13 @@
#ifdef IN_LIBGCC2
extern int cacheflush (void *__addr, const int __nbytes, const int __op);
#endif
/* The SYNC operations are implemented as library functions, not
INSN patterns. As a result, the HAVE defines for the patterns are
not defined. We need to define them to generate the corresponding
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
defines. */
#define HAVE_sync_compare_and_swapqi 1
#define HAVE_sync_compare_and_swaphi 1
#define HAVE_sync_compare_and_swapsi 1