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diff --git a/clang-r353983e/include/llvm/Transforms/Coroutines.h b/clang-r353983e/include/llvm/Transforms/Coroutines.h
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+//===-- Coroutines.h - Coroutine Transformations ----------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+// Declare accessor functions for coroutine lowering passes.
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_COROUTINES_H
+#define LLVM_TRANSFORMS_COROUTINES_H
+
+namespace llvm {
+
+class Pass;
+class PassManagerBuilder;
+
+/// Add all coroutine passes to appropriate extension points.
+void addCoroutinePassesToExtensionPoints(PassManagerBuilder &Builder);
+
+/// Lower coroutine intrinsics that are not needed by later passes.
+Pass *createCoroEarlyPass();
+
+/// Split up coroutines into multiple functions driving their state machines.
+Pass *createCoroSplitPass();
+
+/// Analyze coroutines use sites, devirtualize resume/destroy calls and elide
+/// heap allocation for coroutine frame where possible.
+Pass *createCoroElidePass();
+
+/// Lower all remaining coroutine intrinsics.
+Pass *createCoroCleanupPass();
+
+}
+
+#endif