Differential D22847 Diff 65860 lib/Transforms/Coroutines/CoroEarly.cpp

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				//===- CoroEarly.cpp - Coroutine Early Function Pass ----------------------===//
				//
				// The LLVM Compiler Infrastructure
				//
				// This file is distributed under the University of Illinois Open Source
				// License. See LICENSE.TXT for details.
				//
				//===----------------------------------------------------------------------===//
				// This pass lowers coroutine intrinsics that hide the details of the exact
				// calling convention for coroutine resume and destroy functions and details of
				// the structure of the coroutine frame.
				//===----------------------------------------------------------------------===//

				#include "CoroInternal.h"
				#include "llvm/Pass.h"

				using namespace llvm;

				#define DEBUG_TYPE "coro-early"

				//===----------------------------------------------------------------------===//
				// Top Level Driver
				//===----------------------------------------------------------------------===//

				namespace {

				struct CoroEarly : public FunctionPass {
				static char ID; // Pass identification, replacement for typeid
				CoroEarly() : FunctionPass(ID) {}

				bool runOnFunction(Function &F) override { return false; }
				void getAnalysisUsage(AnalysisUsage &AU) const override {
				AU.setPreservesAll();
				}
				};

				}

				char CoroEarly::ID = 0;
				INITIALIZE_PASS(CoroEarly, "coro-early", "Lower early coroutine intrinsics",
				false, false)

				Pass *llvm::createCoroEarlyPass() { return new CoroEarly(); }