[llvm] 52f568d - [DWARFLinkerParallel] Change more cases of compare_exchange_weak to compare_exchange_strong (#138692)

[via llvm-commits]

Author: Martin Storsjö
Date: 2025-05-07T09:55:17+03:00
New Revision: 52f568dbbb61ffe26b7973b482e0e504b405a0ab

URL: https://github.com/llvm/llvm-project/commit/52f568dbbb61ffe26b7973b482e0e504b405a0ab
DIFF: https://github.com/llvm/llvm-project/commit/52f568dbbb61ffe26b7973b482e0e504b405a0ab.diff

LOG: [DWARFLinkerParallel] Change more cases of compare_exchange_weak to compare_exchange_strong (#138692)

This is a follow-up to 07bc54bf4554398b199f4dc849e5193b98422f23; this
fixes more occasional crashes in dsymutil on Windows on aarch64.

Added: 
    

Modified: 
    llvm/lib/DWARFLinker/Parallel/ArrayList.h

Removed: 
    


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diff  --git a/llvm/lib/DWARFLinker/Parallel/ArrayList.h b/llvm/lib/DWARFLinker/Parallel/ArrayList.h
index c48f828609be2..d99fdcc8c60c0 100644
--- a/llvm/lib/DWARFLinker/Parallel/ArrayList.h
+++ b/llvm/lib/DWARFLinker/Parallel/ArrayList.h
@@ -137,7 +137,7 @@ template <typename T, size_t ItemsGroupSize = 512> class ArrayList {
     NewGroup->Next = nullptr;
 
     // Try to replace current group with allocated one.
-    if (AtomicGroup.compare_exchange_weak(CurGroup, NewGroup))
+    if (AtomicGroup.compare_exchange_strong(CurGroup, NewGroup))
       return true;
 
     // Put allocated group as last group.