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Viewing changes to libclamav/c++/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h

  • Committer: Bazaar Package Importer
  • Author(s): Kees Cook
  • Date: 2007-02-20 10:33:44 UTC
  • mto: This revision was merged to the branch mainline in revision 16.
  • Revision ID: james.westby@ubuntu.com-20070220103344-zgcu2psnx9d98fpa
Tags: upstream-0.90
Import upstream version 0.90

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libclamav/c++/llvm/include/llvm/CodeGen/LinkAllCodegenComponents.h
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//===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
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//
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//                      The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This header file pulls in all codegen related passes for tools like lli and
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// llc that need this functionality.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
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#define LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/SchedulerRegistry.h"
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#include "llvm/CodeGen/GCs.h"
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#include "llvm/Target/TargetMachine.h"
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#include <cstdlib>
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namespace {
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  struct ForceCodegenLinking {
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    ForceCodegenLinking() {
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      // We must reference the passes in such a way that compilers will not
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      // delete it all as dead code, even with whole program optimization,
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      // yet is effectively a NO-OP. As the compiler isn't smart enough
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      // to know that getenv() never returns -1, this will do the job.
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      if (std::getenv("bar") != (char*) -1)
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        return;
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      (void) llvm::createDeadMachineInstructionElimPass();
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      (void) llvm::createFastRegisterAllocator();
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      (void) llvm::createLinearScanRegisterAllocator();
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      (void) llvm::createPBQPRegisterAllocator();
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      (void) llvm::createSimpleRegisterCoalescer();
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      llvm::linkOcamlGC();
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      llvm::linkShadowStackGC();
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      (void) llvm::createBURRListDAGScheduler(NULL, llvm::CodeGenOpt::Default);
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      (void) llvm::createTDRRListDAGScheduler(NULL, llvm::CodeGenOpt::Default);
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      (void) llvm::createSourceListDAGScheduler(NULL,llvm::CodeGenOpt::Default);
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      (void) llvm::createHybridListDAGScheduler(NULL,llvm::CodeGenOpt::Default);
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      (void) llvm::createTDListDAGScheduler(NULL, llvm::CodeGenOpt::Default);
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      (void) llvm::createFastDAGScheduler(NULL, llvm::CodeGenOpt::Default);
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      (void) llvm::createDefaultScheduler(NULL, llvm::CodeGenOpt::Default);
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    }
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  } ForceCodegenLinking; // Force link by creating a global definition.
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}
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#endif