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llvm-mirror/lib/CodeGen/MachineModuleInfoImpls.cpp
Mandeep Singh Grang 648e1f765a [MachineModuleInfoImpls] Replace qsort with array_pod_sort
Summary:
This seems to be the only place in llvm we directly call qsort. We can replace
this with a call to array_pod_sort. Also minor cleanup of the sorting function.

Reviewers: bkramer, Eugene.Zelenko, rafael

Reviewed By: bkramer

Subscribers: efriedma, llvm-commits

Differential Revision: https://reviews.llvm.org/D39214

llvm-svn: 316671
2017-10-26 16:07:20 +00:00

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1.4 KiB
C++

//===- llvm/CodeGen/MachineModuleInfoImpls.cpp ----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements object-file format specific implementations of
// MachineModuleInfoImpl.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/MC/MCSymbol.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
// MachineModuleInfoMachO
//===----------------------------------------------------------------------===//
// Out of line virtual method.
void MachineModuleInfoMachO::anchor() {}
void MachineModuleInfoELF::anchor() {}
using PairTy = std::pair<MCSymbol *, MachineModuleInfoImpl::StubValueTy>;
static int SortSymbolPair(const PairTy *LHS, const PairTy *RHS) {
return LHS->first->getName().compare(RHS->first->getName());
}
MachineModuleInfoImpl::SymbolListTy MachineModuleInfoImpl::getSortedStubs(
DenseMap<MCSymbol *, MachineModuleInfoImpl::StubValueTy> &Map) {
MachineModuleInfoImpl::SymbolListTy List(Map.begin(), Map.end());
array_pod_sort(List.begin(), List.end(), SortSymbolPair);
Map.clear();
return List;
}