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Make TimingGuard a little safer

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This commit is contained in:
bjorn3 2025-01-07 15:38:44 +00:00
parent a28b98650f
commit 0335dc131f
1 changed files with 5 additions and 3 deletions
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8
src/driver/mod.rs
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@ -73,12 +73,14 @@ impl Drop for TimingGuard {
impl cranelift_codegen::timing::Profiler for MeasuremeProfiler {
fn start_pass(&self, pass: cranelift_codegen::timing::Pass) -> Box<dyn std::any::Any> {
let mut timing_guard =
TimingGuard { profiler: std::mem::ManuallyDrop::new(self.0.clone()), inner: None };
let mut timing_guard = Box::new(TimingGuard {
profiler: std::mem::ManuallyDrop::new(self.0.clone()),
inner: None,
});
timing_guard.inner = Some(
unsafe { &*(&*timing_guard.profiler as &SelfProfilerRef as *const SelfProfilerRef) }
.generic_activity(pass.description()),
);
Box::new(timing_guard)
timing_guard
}
}