mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
b04be3c048
althought the interstingness test should usually fail when the module is invalid this changes reduces the frequency at which llvm-reduce generate invalid IR. Reviewed By: lebedev.ri Differential Revision: https://reviews.llvm.org/D86404
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
//===- ReduceFunctions.cpp - Specialized Delta Pass -----------------------===//
|
|
//
|
|
// 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 implements a function which calls the Generic Delta pass in order
|
|
// to reduce function bodies in the provided Module.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ReduceFunctionBodies.h"
|
|
#include "Delta.h"
|
|
#include "llvm/IR/GlobalValue.h"
|
|
|
|
using namespace llvm;
|
|
|
|
/// Removes all the bodies of defined functions that aren't inside any of the
|
|
/// desired Chunks.
|
|
static void
|
|
extractFunctionBodiesFromModule(const std::vector<Chunk> &ChunksToKeep,
|
|
Module *Program) {
|
|
Oracle O(ChunksToKeep);
|
|
|
|
// Delete out-of-chunk function bodies
|
|
std::vector<Function *> FuncDefsToReduce;
|
|
for (auto &F : *Program)
|
|
if (!F.isDeclaration() && !O.shouldKeep()) {
|
|
F.deleteBody();
|
|
F.setComdat(nullptr);
|
|
}
|
|
}
|
|
|
|
/// Counts the amount of non-declaration functions and prints their
|
|
/// respective name & index
|
|
static int countFunctionDefinitions(Module *Program) {
|
|
// TODO: Silence index with --quiet flag
|
|
errs() << "----------------------------\n";
|
|
errs() << "Function Definition Index Reference:\n";
|
|
int FunctionDefinitionCount = 0;
|
|
for (auto &F : *Program)
|
|
if (!F.isDeclaration())
|
|
errs() << "\t" << ++FunctionDefinitionCount << ": " << F.getName()
|
|
<< "\n";
|
|
|
|
errs() << "----------------------------\n";
|
|
return FunctionDefinitionCount;
|
|
}
|
|
|
|
void llvm::reduceFunctionBodiesDeltaPass(TestRunner &Test) {
|
|
errs() << "*** Reducing Function Bodies...\n";
|
|
int Functions = countFunctionDefinitions(Test.getProgram());
|
|
runDeltaPass(Test, Functions, extractFunctionBodiesFromModule);
|
|
errs() << "----------------------------\n";
|
|
}
|