[compiler-rt] [scudo] Pass the max number of blocks to popBlocks (PR #70243)

[via llvm-commits]

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@@ -191,13 +191,15 @@ template <typename Config> class SizeClassAllocator32 {
     return BlockSize > PageSize;
   }
 
-  u16 popBlocks(CacheT *C, uptr ClassId, CompactPtrT *ToArray) {
+  u16 popBlocks(CacheT *C, uptr ClassId, CompactPtrT *ToArray,
+                const u16 MaxBlockCount) {
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ChiaHungDuan wrote:

Yes, it'll be used in the case that TransferBatch  stores more blocks than `MaxBlockCount`. Now the TransferBatch almost always stores the same amount as `MaxBlocksCount` so we only use it in the DCHECK at this moment

https://github.com/llvm/llvm-project/pull/70243