1 files changed, 27 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/memprof/memprof_mibmap.h b/contrib/llvm-project/compiler-rt/lib/memprof/memprof_mibmap.h
new file mode 100644
index 000000000000..a7cd420464e8
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/memprof/memprof_mibmap.h
@@ -0,0 +1,27 @@
+#ifndef MEMPROF_MIBMAP_H_
+#define MEMPROF_MIBMAP_H_
+
+#include <stdint.h>
+
+#include "profile/MemProfData.inc"
+#include "sanitizer_common/sanitizer_addrhashmap.h"
+#include "sanitizer_common/sanitizer_mutex.h"
+
+namespace __memprof {
+
+struct LockedMemInfoBlock {
+  __sanitizer::StaticSpinMutex mutex;
+  ::llvm::memprof::MemInfoBlock mib;
+};
+
+// The MIB map stores a mapping from stack ids to MemInfoBlocks.
+typedef __sanitizer::AddrHashMap<LockedMemInfoBlock *, 200003> MIBMapTy;
+
+// Insert a new MemInfoBlock or merge with an existing block identified by the
+// stack id.
+void InsertOrMerge(const uptr Id, const ::llvm::memprof::MemInfoBlock &Block,
+                   MIBMapTy &Map);
+
+} // namespace __memprof
+
+#endif // MEMPROF_MIBMAP_H_