Viewing file:  pr102566-13.c (2.23 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O2" } */
#include <stdatomic.h>
#include <stdbool.h>
#define FOO(TYPE,MASK) \
__attribute__((noinline,noclone)) TYPE \
atomic_fetch_or_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __atomic_fetch_or (a, mask, __ATOMIC_RELAXED) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
atomic_fetch_xor_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __atomic_fetch_xor (a, mask, __ATOMIC_RELAXED) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
atomic_xor_fetch_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __atomic_xor_fetch (a, mask, __ATOMIC_RELAXED) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
atomic_fetch_and_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __atomic_fetch_and (a, ~mask, __ATOMIC_RELAXED) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
sync_fetch_and_or_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __sync_fetch_and_or (a, mask) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
sync_fetch_and_xor_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __sync_fetch_and_xor (a, mask) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
sync_xor_and_fetch_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __sync_xor_and_fetch (a, mask) & mask; \
} \
__attribute__((noinline,noclone)) TYPE \
sync_fetch_and_and_##TYPE##_##MASK (_Atomic TYPE* a) \
{ \
TYPE mask = 1 << MASK; \
return __sync_fetch_and_and (a, ~mask) & mask; \
} \
FOO(short, 0);
FOO(short, 7);
FOO(short, 15);
FOO(int, 0);
FOO(int, 15);
FOO(int, 31);
/* { dg-final { scan-assembler-times "lock;?\[ \t\]*bts" 12 } } */
/* { dg-final { scan-assembler-times "lock;?\[ \t\]*btc" 24 } } */
/* { dg-final { scan-assembler-times "lock;?\[ \t\]*btr" 12 } } */
/* { dg-final { scan-assembler-not "cmpxchg" } } */
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