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2c17c4d8d9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41743 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.7 KiB
C++
44 lines
1.7 KiB
C++
//===- RegisterCoalescer.cpp - Generic Register Coalescing Interface -------==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the generic RegisterCoalescer interface which
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// is used as the common interface used by all clients and
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// implementations of register coalescing.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/RegisterCoalescer.h"
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#include "llvm/CodeGen/LiveIntervalAnalysis.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/Target/MRegisterInfo.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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// Register the RegisterCoalescer interface, providing a nice name to refer to.
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namespace {
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RegisterAnalysisGroup<RegisterCoalescer> Z("Register Coalescer");
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}
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char RegisterCoalescer::ID = 0;
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// RegisterCoalescer destructor: DO NOT move this to the header file
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// for RegisterCoalescer or else clients of the RegisterCoalescer
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// class may not depend on the RegisterCoalescer.o file in the current
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// .a file, causing alias analysis support to not be included in the
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// tool correctly!
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//
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RegisterCoalescer::~RegisterCoalescer() {}
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// Because of the way .a files work, we must force the SimpleRC
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// implementation to be pulled in if the RegisterCoalescer classes are
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// pulled in. Otherwise we run the risk of RegisterCoalescer being
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// used, but the default implementation not being linked into the tool
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// that uses it.
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DEFINING_FILE_FOR(RegisterCoalescer)
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