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llvm-mirror/tools/llvm-reduce/DeltaManager.h
Diego Trevino Ferrer 1b3c98cfd0 [Bugpoint redesign] Added Pass to Remove Global Variables
Summary:
This pass tries to remove Global Variables, as well as their derived uses. For example if a variable `@x` is used by `%call1` and `%call2`, both these uses and the definition of `@x` are deleted. Moreover if `%call1` or `%call2` are used elsewhere those uses are also deleted, and so on recursively.

I'm still uncertain if this pass should remove derived uses, I'm open to suggestions.

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64176

llvm-svn: 368918
2019-08-14 21:01:19 +00:00

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//===- DeltaManager.h - Runs Delta Passes to reduce Input -----------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file calls each specialized Delta pass in order to reduce the input IR
// file.
//
//===----------------------------------------------------------------------===//
#include "TestRunner.h"
#include "deltas/Delta.h"
#include "deltas/ReduceFunctions.h"
#include "deltas/ReduceGlobalVars.h"
namespace llvm {
// TODO: Add CLI option to run only specified Passes (for unit tests)
inline void runDeltaPasses(TestRunner &Tester) {
outs() << "Reducing functions...\n";
reduceFunctionsDeltaPass(Tester);
outs() << "Reducing GVs...\n";
reduceGlobalsDeltaPass(Tester);
// TODO: Implement the remaining Delta Passes
}
} // namespace llvm