================
@@ -975,6 +999,14 @@ class WaitcntBrackets {
// Store representative LDS DMA operations. The only useful info here is
// alias info. One store is kept per unique AAInfo.
SmallVector<const MachineInstr *> LDSDMAStores;
+
+ // State of all counters at each async mark encountered so far.
+ SmallVector<CounterValueArray> AsyncMarks;
+ static constexpr unsigned MaxAsyncMarks = 16;
----------------
vporpo wrote:
> AsyncMarks is a FIFO. Constantly enforcing MaxAsyncMarks as a data-structure
> limit would require removing elements from the front.
If it's a FIFO, then please use a proper FIFO data structure. The logic of this
pass is already very tricky to follow, so having to deal with a FIFO that is
not explicitly defined as such is not great.
https://github.com/llvm/llvm-project/pull/180467
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