diff options
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc index 9098cec91f2..f052f2672c9 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc @@ -226,7 +226,8 @@ void CoverageData::InitializeGuardArray(s32 *guards) { Enable(); // Make sure coverage is enabled at this point. s32 n = guards[0]; for (s32 j = 1; j <= n; j++) { - uptr idx = atomic_fetch_add(&pc_array_index, 1, memory_order_relaxed); + uptr idx = atomic_load_relaxed(&pc_array_index); + atomic_store_relaxed(&pc_array_index, idx + 1); guards[j] = -static_cast<s32>(idx + 1); } } |
