53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===- ReduceModuleData.cpp -----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a reduce pass to reduce various module data.
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//
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//===----------------------------------------------------------------------===//
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#include "ReduceModuleData.h"
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using namespace llvm;
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static void clearModuleData(std::vector<Chunk> ChunksToKeep, Module *Program) {
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Oracle O(ChunksToKeep);
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if (!Program->getModuleIdentifier().empty() && !O.shouldKeep())
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Program->setModuleIdentifier("");
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if (!Program->getSourceFileName().empty() && !O.shouldKeep())
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Program->setSourceFileName("");
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if (!Program->getDataLayoutStr().empty() && !O.shouldKeep())
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Program->setDataLayout("");
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if (!Program->getTargetTriple().empty() && !O.shouldKeep())
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Program->setTargetTriple("");
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// TODO: clear line by line rather than all at once
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if (!Program->getModuleInlineAsm().empty() && !O.shouldKeep())
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Program->setModuleInlineAsm("");
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}
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static int countModuleData(Module *M) {
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int Count = 0;
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if (!M->getModuleIdentifier().empty())
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++Count;
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if (!M->getSourceFileName().empty())
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++Count;
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if (!M->getDataLayoutStr().empty())
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++Count;
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if (!M->getTargetTriple().empty())
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++Count;
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if (!M->getModuleInlineAsm().empty())
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++Count;
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return Count;
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}
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void llvm::reduceModuleDataDeltaPass(TestRunner &Test) {
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outs() << "*** Reducing Module Data...\n";
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int Count = countModuleData(Test.getProgram());
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runDeltaPass(Test, Count, clearModuleData);
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}
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