Viewing file:  atomic-invalid-2.c (2.73 KB) -rw-r--r--
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/* PR c/69104. Test atomic routines for invalid memory model errors. This
only needs to be tested on a single size. */
/* { dg-do compile } */
/* { dg-require-effective-target sync_int_long } */
#include <stdatomic.h>
/* atomic_store_explicit():
The order argument shall not be memory_order_acquire,
memory_order_consume, nor memory_order_acq_rel. */
void
store (atomic_int *i)
{
atomic_store_explicit (i, 0, memory_order_consume); /* { dg-warning "invalid memory model" } */
atomic_store_explicit (i, 0, memory_order_acquire); /* { dg-warning "invalid memory model" } */
atomic_store_explicit (i, 0, memory_order_acq_rel); /* { dg-warning "invalid memory model" } */
}
/* atomic_load_explicit():
The order argument shall not be memory_order_release nor
memory_order_acq_rel. */
void
load (atomic_int *i)
{
atomic_int j = atomic_load_explicit (i, memory_order_release); /* { dg-warning "invalid memory model" } */
atomic_int k = atomic_load_explicit (i, memory_order_acq_rel); /* { dg-warning "invalid memory model" } */
}
/* atomic_compare_exchange():
The failure argument shall not be memory_order_release nor
memory_order_acq_rel. The failure argument shall be no stronger than the
success argument. */
void
exchange (atomic_int *i)
{
int r;
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory model 'memory_order_release'" } */
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory model 'memory_order_acq_rel'" } */
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" } */
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory model 'memory_order_release'" } */
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory model 'memory_order_acq_rel'" } */
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" } */
}
/* atomic_flag_clear():
The order argument shall not be memory_order_acquire nor
memory_order_acq_rel. */
void
clear (atomic_int *i)
{
atomic_flag_clear_explicit (i, memory_order_acquire); /* { dg-warning "invalid memory model" } */
atomic_flag_clear_explicit (i, memory_order_acq_rel); /* { dg-warning "invalid memory model" } */
}
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