[llvm] [OFFLOAD] Add support for indexed per-thread containers (PR #164263)

[Alex Duran via llvm-commits]

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@@ -14,26 +14,106 @@
 #define OFFLOAD_PERTHREADTABLE_H
 
 #include <list>
+#include <llvm/ADT/SmallVector.h>
+#include <llvm/Support/Error.h>
 #include <memory>
 #include <mutex>
+#include <type_traits>
+
+template <typename ObjectType> struct PerThread {
+  struct PerThreadData {
+    std::unique_ptr<ObjectType> ThreadEntry;
+  };
+
+  std::mutex Mutex;
+  llvm::SmallVector<std::shared_ptr<PerThreadData>> ThreadDataList;
+
+  // define default constructors, disable copy and move constructors
+  PerThread() = default;
+  PerThread(const PerThread &) = delete;
+  PerThread(PerThread &&) = delete;
+  PerThread &operator=(const PerThread &) = delete;
+  PerThread &operator=(PerThread &&) = delete;
+  ~PerThread() {
+    assert(Mutex.try_lock() &&
+           "Cannot be deleted while other threads are adding entries");
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adurang wrote:

Thanks Kevin. Fixed the asserts to follow your pattern.

https://github.com/llvm/llvm-project/pull/164263