[compiler-rt] [asan] Speed up ASan ODR indicator-based checking (PR #100923)

[Vitaly Buka via llvm-commits]

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@@ -225,10 +248,12 @@ static void RegisterGlobal(const Global *g) {
   }
   if (CanPoisonMemory())
     PoisonRedZones(*g);
-  ListOfGlobals *l = new (GetGlobalLowLevelAllocator()) ListOfGlobals;
-  l->g = g;
-  l->next = list_of_all_globals;
-  list_of_all_globals = l;
+
+  AddGlobalToList(list_of_all_globals, g);
+
+  if (UseODRIndicator(g) && g->odr_indicator != UINTPTR_MAX)
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vitalybuka wrote:

I'd prefer we do this in CheckODRViolationViaIndicator, 
so instead of 2 lookups: find + [], 
just one one [] there.

https://github.com/llvm/llvm-project/pull/100923