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update comments for the changes on nac3core/src/codegen/mod.rs

This commit is contained in:
z78078 2022-07-04 16:17:04 +08:00
parent 1cf99a6499
commit 4ea6f1e928
1 changed files with 8 additions and 0 deletions
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8
nac3core/src/codegen/mod.rs
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@ -53,6 +53,8 @@ pub struct StaticValueStore {
pub type VarValue<'ctx> = (PointerValue<'ctx>, Option<Arc<dyn StaticValue + Send + Sync>>, i64);
lazy_static!(
// HACK: The Mutex is a work-around for issue
// https://git.m-labs.hk/M-Labs/nac3/issues/275
static ref PASSES_INIT_LOCK: Mutex<AtomicBool> = Mutex::new(AtomicBool::new(true));
);
@ -230,7 +232,13 @@ impl WorkerRegistry {
let passes = PassManager::create(&module);
// HACK: This critical section is a work-around for issue
// https://git.m-labs.hk/M-Labs/nac3/issues/275
{
// the variable holder `_data` is required even we are not using the
// variable. The lock will release itself if the variable `_data` is not
// there
let _data = PASSES_INIT_LOCK.lock();
let pass_builder = PassManagerBuilder::create();
pass_builder.set_optimization_level(OptimizationLevel::Default);