diff options
Diffstat (limited to 'src/trans/codegen_c.cpp')
| -rw-r--r-- | src/trans/codegen_c.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/trans/codegen_c.cpp b/src/trans/codegen_c.cpp index a1b3d065..8bbbd033 100644 --- a/src/trans/codegen_c.cpp +++ b/src/trans/codegen_c.cpp @@ -313,9 +313,10 @@ namespace { { m_of << "static inline uint"<<sz<<"_t __mrustc_atomicloop"<<sz<<"(volatile uint"<<sz<<"_t* slot, uint"<<sz<<"_t param, int ordering, uint"<<sz<<"_t (*cb)(uint"<<sz<<"_t, uint"<<sz<<"_t)) {" + << " int ordering_load = (ordering == memory_order_release || ordering == memory_order_acq_rel ? memory_order_relaxed : ordering);" // If Release, Load with Relaxed << " for(;;) {" - << " uint"<<sz<<"_t v = atomic_load_explicit((_Atomic uint"<<sz<<"_t*)slot, ordering);" - << " if( atomic_compare_exchange_strong_explicit((_Atomic uint"<<sz<<"_t*)slot, &v, cb(v, param), ordering, ordering) ) return v;" + << " uint"<<sz<<"_t v = atomic_load_explicit((_Atomic uint"<<sz<<"_t*)slot, ordering_load);" + << " if( atomic_compare_exchange_strong_explicit((_Atomic uint"<<sz<<"_t*)slot, &v, cb(v, param), ordering, ordering_load) ) return v;" << " }" << "}\n" ; |