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| author | Ivan Maidanski <ivmai@mail.ru> | 2021-06-11 21:23:25 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2021-06-11 21:23:25 +0300 |
| commit | 3401a48ab1d756a7e66230ae88a4e183504bc7ad (patch) | |
| tree | d8961dddfb54d7a65abc479df417e33529957a9e /src | |
| parent | 2c264fa8a2a0516e9654af9ba28fc1e9ac2db0cb (diff) | |
| download | libatomic_ops-3401a48ab1d756a7e66230ae88a4e183504bc7ad.tar.gz | |
Allow to generalize bool-CAS for sparc (gcc)
* src/atomic_ops/sysdeps/gcc/sparc.h [!AO_NO_SPARC_V9]
(AO_compare_and_swap_full): Do not define if AO_GENERALIZE_ASM_BOOL_CAS.
Diffstat (limited to 'src')
| -rw-r--r-- | src/atomic_ops/sysdeps/gcc/sparc.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/atomic_ops/sysdeps/gcc/sparc.h b/src/atomic_ops/sysdeps/gcc/sparc.h index 9bd48d4..775da0a 100644 --- a/src/atomic_ops/sysdeps/gcc/sparc.h +++ b/src/atomic_ops/sysdeps/gcc/sparc.h @@ -38,6 +38,8 @@ AO_test_and_set_full(volatile AO_TS_t *addr) { #define AO_HAVE_test_and_set_full #ifndef AO_NO_SPARC_V9 + +# ifndef AO_GENERALIZE_ASM_BOOL_CAS /* Returns nonzero if the comparison succeeded. */ AO_INLINE int AO_compare_and_swap_full(volatile AO_t *addr, AO_t old, AO_t new_val) { @@ -59,7 +61,8 @@ AO_compare_and_swap_full(volatile AO_t *addr, AO_t old, AO_t new_val) { : "memory", "cc"); return (int)ret; } -#define AO_HAVE_compare_and_swap_full +# define AO_HAVE_compare_and_swap_full +# endif /* !AO_GENERALIZE_ASM_BOOL_CAS */ AO_INLINE AO_t AO_fetch_compare_and_swap_full(volatile AO_t *addr, AO_t old, AO_t new_val) { @@ -76,6 +79,7 @@ AO_fetch_compare_and_swap_full(volatile AO_t *addr, AO_t old, AO_t new_val) { return new_val; } #define AO_HAVE_fetch_compare_and_swap_full + #endif /* !AO_NO_SPARC_V9 */ /* TODO: Extend this for SPARC v8 and v9 (V8 also has swap, V9 has CAS, */ |