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move fence to the right place #82661

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Merged
jkotas merged 1 commit into from
Feb 26, 2023
Merged

move fence to the right place #82661

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3 changes: 2 additions & 1 deletion src/coreclr/gc/gc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -16826,7 +16826,8 @@ BOOL gc_heap::a_fit_segment_end_p (int gen_number,
// (see also: object.cpp/Object::ValidateInner)
// Make sure it will see cleaned up state to prevent triggering occasional verification failures.
// And make sure the write happens before updating "allocated"
VolatileStore(((void**)allocated - 1), (void*)0); //clear the sync block
((void**)allocated)[-1] = 0; // clear the sync block
VOLATILE_MEMORY_BARRIER();
#endif //VERIFY_HEAP && _DEBUG

uint8_t* old_alloc;
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