2004-04-02 13:06:57 +08:00
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//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
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2005-04-22 08:00:37 +08:00
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//
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2003-10-21 01:47:21 +08:00
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// The LLVM Compiler Infrastructure
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//
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2007-12-30 04:44:31 +08:00
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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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2005-04-22 08:00:37 +08:00
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//
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2003-10-21 01:47:21 +08:00
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//===----------------------------------------------------------------------===//
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2001-06-07 04:29:01 +08:00
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//
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// Optimizations may be specified an arbitrary number of times on the command
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2006-08-18 14:34:30 +08:00
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// line, They are run in the order specified.
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2001-06-07 04:29:01 +08:00
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//
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2001-10-18 14:05:15 +08:00
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//===----------------------------------------------------------------------===//
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2001-06-07 04:29:01 +08:00
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2009-07-02 00:58:40 +08:00
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#include "llvm/LLVMContext.h"
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2001-06-07 04:29:01 +08:00
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#include "llvm/Module.h"
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2002-01-31 08:47:12 +08:00
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#include "llvm/PassManager.h"
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2007-06-29 07:09:25 +08:00
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#include "llvm/CallGraphSCCPass.h"
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2007-05-06 10:42:03 +08:00
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#include "llvm/Bitcode/ReaderWriter.h"
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2001-10-19 23:39:14 +08:00
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#include "llvm/Assembly/PrintModulePass.h"
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2010-12-07 08:33:43 +08:00
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#include "llvm/Analysis/DebugInfo.h"
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2002-02-21 01:56:53 +08:00
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#include "llvm/Analysis/Verifier.h"
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2007-03-07 08:26:10 +08:00
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#include "llvm/Analysis/LoopPass.h"
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2010-10-20 09:54:44 +08:00
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#include "llvm/Analysis/RegionPass.h"
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2007-06-29 07:09:25 +08:00
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#include "llvm/Analysis/CallGraph.h"
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2006-05-12 14:33:49 +08:00
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#include "llvm/Target/TargetData.h"
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2011-02-19 06:13:01 +08:00
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#include "llvm/Target/TargetLibraryInfo.h"
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2002-09-17 00:09:43 +08:00
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#include "llvm/Target/TargetMachine.h"
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2011-04-05 03:51:17 +08:00
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#include "llvm/ADT/StringSet.h"
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2011-02-19 06:13:01 +08:00
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#include "llvm/ADT/Triple.h"
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2002-07-27 05:09:32 +08:00
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#include "llvm/Support/PassNameParser.h"
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2010-11-30 02:16:10 +08:00
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#include "llvm/Support/Signals.h"
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2010-01-05 09:30:32 +08:00
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#include "llvm/Support/Debug.h"
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2009-09-04 00:00:08 +08:00
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#include "llvm/Support/IRReader.h"
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2006-12-06 09:18:01 +08:00
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#include "llvm/Support/ManagedStatic.h"
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2004-09-02 06:55:40 +08:00
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#include "llvm/Support/PluginLoader.h"
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2009-12-09 08:41:28 +08:00
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#include "llvm/Support/PrettyStackTrace.h"
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2004-09-02 06:55:40 +08:00
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#include "llvm/Support/SystemUtils.h"
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2010-10-08 04:32:40 +08:00
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#include "llvm/Support/ToolOutputFile.h"
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2006-08-21 13:34:03 +08:00
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#include "llvm/LinkAllPasses.h"
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2006-06-08 07:03:13 +08:00
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#include "llvm/LinkAllVMCore.h"
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2011-08-03 05:50:24 +08:00
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#include "llvm/Transforms/IPO/PassManagerBuilder.h"
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2001-11-27 03:22:39 +08:00
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#include <memory>
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2002-07-24 02:12:22 +08:00
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#include <algorithm>
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2003-11-12 06:41:34 +08:00
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using namespace llvm;
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2002-04-14 02:32:47 +08:00
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2002-07-24 02:12:22 +08:00
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// The OptimizationList is automatically populated with registered Passes by the
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// PassNameParser.
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2002-01-31 08:47:12 +08:00
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//
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2006-08-28 06:07:01 +08:00
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static cl::list<const PassInfo*, bool, PassNameParser>
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PassList(cl::desc("Optimizations available:"));
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2001-06-07 04:29:01 +08:00
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2002-07-24 02:12:22 +08:00
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// Other command line options...
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2002-01-31 08:47:12 +08:00
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//
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2003-05-23 04:13:16 +08:00
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static cl::opt<std::string>
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2009-08-22 07:29:40 +08:00
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InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
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2006-08-18 14:34:30 +08:00
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cl::init("-"), cl::value_desc("filename"));
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2002-07-22 10:10:13 +08:00
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2003-05-23 04:13:16 +08:00
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static cl::opt<std::string>
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2002-07-22 10:10:13 +08:00
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OutputFilename("o", cl::desc("Override output filename"),
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2010-08-19 01:40:10 +08:00
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cl::value_desc("filename"));
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2002-07-22 10:10:13 +08:00
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static cl::opt<bool>
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2009-08-25 23:34:52 +08:00
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Force("f", cl::desc("Enable binary output on terminals"));
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2002-07-22 10:10:13 +08:00
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static cl::opt<bool>
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PrintEachXForm("p", cl::desc("Print module after each transformation"));
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2003-02-13 02:43:33 +08:00
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static cl::opt<bool>
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2003-02-27 04:00:41 +08:00
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NoOutput("disable-output",
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2007-07-06 01:07:56 +08:00
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cl::desc("Do not write result bitcode file"), cl::Hidden);
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2003-02-13 02:43:33 +08:00
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2009-09-05 19:34:53 +08:00
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static cl::opt<bool>
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2009-10-15 04:01:39 +08:00
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OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
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2009-09-05 19:34:53 +08:00
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2003-02-13 02:45:08 +08:00
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static cl::opt<bool>
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2003-02-27 04:00:41 +08:00
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NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
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2003-02-13 02:45:08 +08:00
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2007-02-02 22:46:29 +08:00
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static cl::opt<bool>
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VerifyEach("verify-each", cl::desc("Verify after each transform"));
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static cl::opt<bool>
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StripDebug("strip-debug",
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cl::desc("Strip debugger symbol info from translation unit"));
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static cl::opt<bool>
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DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
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2009-08-22 07:29:40 +08:00
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static cl::opt<bool>
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DisableOptimizations("disable-opt",
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2007-02-02 22:46:29 +08:00
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cl::desc("Do not run any optimization passes"));
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2009-08-22 07:29:40 +08:00
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static cl::opt<bool>
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2009-07-18 02:09:39 +08:00
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DisableInternalize("disable-internalize",
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cl::desc("Do not mark all symbols as internal"));
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2007-02-02 22:46:29 +08:00
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static cl::opt<bool>
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2009-08-22 07:29:40 +08:00
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StandardCompileOpts("std-compile-opts",
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2007-02-02 22:46:29 +08:00
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cl::desc("Include the standard compile time optimizations"));
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2009-07-18 02:09:39 +08:00
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static cl::opt<bool>
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2009-08-22 07:29:40 +08:00
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StandardLinkOpts("std-link-opts",
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2009-07-18 02:09:39 +08:00
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cl::desc("Include the standard link time optimizations"));
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|
2008-09-17 06:25:14 +08:00
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static cl::opt<bool>
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OptLevelO1("O1",
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cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
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static cl::opt<bool>
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OptLevelO2("O2",
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2008-09-17 08:01:04 +08:00
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cl::desc("Optimization level 2. Similar to llvm-gcc -O2"));
|
2008-09-17 06:25:14 +08:00
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static cl::opt<bool>
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OptLevelO3("O3",
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2008-09-17 08:01:04 +08:00
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cl::desc("Optimization level 3. Similar to llvm-gcc -O3"));
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2008-09-17 06:25:14 +08:00
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static cl::opt<bool>
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UnitAtATime("funit-at-a-time",
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2009-08-22 07:30:30 +08:00
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cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
|
2010-07-12 16:16:59 +08:00
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cl::init(true));
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2008-09-17 06:25:14 +08:00
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static cl::opt<bool>
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DisableSimplifyLibCalls("disable-simplify-libcalls",
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2008-09-18 00:01:39 +08:00
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cl::desc("Disable simplify-libcalls"));
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2008-09-17 06:25:14 +08:00
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2002-07-22 10:10:13 +08:00
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static cl::opt<bool>
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2004-05-28 04:32:10 +08:00
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Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
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2002-07-22 10:10:13 +08:00
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2004-05-28 00:28:54 +08:00
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static cl::alias
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QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
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2006-08-18 14:34:30 +08:00
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static cl::opt<bool>
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AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
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2010-12-07 08:33:43 +08:00
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static cl::opt<bool>
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2011-04-06 02:41:31 +08:00
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PrintBreakpoints("print-breakpoints-for-testing",
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2010-12-07 08:33:43 +08:00
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cl::desc("Print select breakpoints location for testing"));
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2009-10-22 08:44:10 +08:00
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static cl::opt<std::string>
|
2011-04-06 02:41:31 +08:00
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DefaultDataLayout("default-data-layout",
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2009-10-22 08:44:10 +08:00
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cl::desc("data layout string to use if not specified by module"),
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cl::value_desc("layout-string"), cl::init(""));
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2006-08-18 14:34:30 +08:00
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// ---------- Define Printers for module and function passes ------------
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namespace {
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2007-06-29 07:09:25 +08:00
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struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
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static char ID;
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const PassInfo *PassToPrint;
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2010-08-19 01:42:59 +08:00
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raw_ostream &Out;
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2010-09-08 23:02:47 +08:00
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std::string PassName;
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2010-08-19 01:42:59 +08:00
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CallGraphSCCPassPrinter(const PassInfo *PI, raw_ostream &out) :
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2010-09-08 23:02:47 +08:00
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CallGraphSCCPass(ID), PassToPrint(PI), Out(out) {
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std::string PassToPrintName = PassToPrint->getPassName();
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PassName = "CallGraphSCCPass Printer: " + PassToPrintName;
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}
|
2007-06-29 07:09:25 +08:00
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2010-04-17 06:42:17 +08:00
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virtual bool runOnSCC(CallGraphSCC &SCC) {
|
2010-09-08 23:02:51 +08:00
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if (!Quiet)
|
2010-08-19 01:42:59 +08:00
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Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
|
2007-06-29 07:09:25 +08:00
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// Get and print pass...
|
2010-09-08 23:02:51 +08:00
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for (CallGraphSCC::iterator I = SCC.begin(), E = SCC.end(); I != E; ++I) {
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Function *F = (*I)->getFunction();
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if (F)
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
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F->getParent());
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}
|
2007-06-29 07:09:25 +08:00
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return false;
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}
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2009-08-22 07:29:40 +08:00
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2010-09-08 23:02:47 +08:00
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virtual const char *getPassName() const { return PassName.c_str(); }
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2007-06-29 07:09:25 +08:00
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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2010-08-07 02:33:48 +08:00
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AU.addRequiredID(PassToPrint->getTypeInfo());
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2007-06-29 07:09:25 +08:00
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AU.setPreservesAll();
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}
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};
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char CallGraphSCCPassPrinter::ID = 0;
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2006-08-18 14:34:30 +08:00
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struct ModulePassPrinter : public ModulePass {
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2007-05-03 09:11:54 +08:00
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static char ID;
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2006-08-18 14:34:30 +08:00
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const PassInfo *PassToPrint;
|
2010-08-19 01:42:59 +08:00
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raw_ostream &Out;
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2010-09-08 23:02:47 +08:00
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std::string PassName;
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2010-08-19 01:42:59 +08:00
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ModulePassPrinter(const PassInfo *PI, raw_ostream &out)
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2010-09-08 23:02:47 +08:00
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: ModulePass(ID), PassToPrint(PI), Out(out) {
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std::string PassToPrintName = PassToPrint->getPassName();
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PassName = "ModulePass Printer: " + PassToPrintName;
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}
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2006-08-18 14:34:30 +08:00
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virtual bool runOnModule(Module &M) {
|
2010-09-08 23:02:51 +08:00
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if (!Quiet)
|
2010-08-19 01:42:59 +08:00
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Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
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2006-08-18 14:34:30 +08:00
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// Get and print pass...
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2010-09-08 23:02:51 +08:00
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out, &M);
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2006-08-18 14:34:30 +08:00
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return false;
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}
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|
2010-09-08 23:02:47 +08:00
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virtual const char *getPassName() const { return PassName.c_str(); }
|
2006-08-18 14:34:30 +08:00
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
2010-08-07 02:33:48 +08:00
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AU.addRequiredID(PassToPrint->getTypeInfo());
|
2006-08-18 14:34:30 +08:00
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AU.setPreservesAll();
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}
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};
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2007-05-03 09:11:54 +08:00
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char ModulePassPrinter::ID = 0;
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2006-08-18 14:34:30 +08:00
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struct FunctionPassPrinter : public FunctionPass {
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const PassInfo *PassToPrint;
|
2010-08-19 01:42:59 +08:00
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raw_ostream &Out;
|
2007-05-03 09:11:54 +08:00
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static char ID;
|
2010-09-08 23:02:47 +08:00
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std::string PassName;
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|
2010-08-19 01:42:59 +08:00
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FunctionPassPrinter(const PassInfo *PI, raw_ostream &out)
|
2010-09-08 23:02:47 +08:00
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: FunctionPass(ID), PassToPrint(PI), Out(out) {
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std::string PassToPrintName = PassToPrint->getPassName();
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PassName = "FunctionPass Printer: " + PassToPrintName;
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}
|
2006-08-18 14:34:30 +08:00
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virtual bool runOnFunction(Function &F) {
|
2010-09-08 23:02:51 +08:00
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if (!Quiet)
|
2010-08-19 01:42:59 +08:00
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Out << "Printing analysis '" << PassToPrint->getPassName()
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<< "' for function '" << F.getName() << "':\n";
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2010-09-08 23:02:51 +08:00
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2006-08-18 14:34:30 +08:00
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// Get and print pass...
|
2010-08-19 01:42:59 +08:00
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
|
2010-08-07 02:33:48 +08:00
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F.getParent());
|
2006-08-18 14:34:30 +08:00
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return false;
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}
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|
2010-09-08 23:02:47 +08:00
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virtual const char *getPassName() const { return PassName.c_str(); }
|
2006-08-18 14:34:30 +08:00
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
2010-08-07 02:33:48 +08:00
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AU.addRequiredID(PassToPrint->getTypeInfo());
|
2006-08-18 14:34:30 +08:00
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AU.setPreservesAll();
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}
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};
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2007-05-03 09:11:54 +08:00
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char FunctionPassPrinter::ID = 0;
|
2007-07-05 23:32:03 +08:00
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struct LoopPassPrinter : public LoopPass {
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static char ID;
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const PassInfo *PassToPrint;
|
2010-08-19 01:42:59 +08:00
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raw_ostream &Out;
|
2010-09-08 23:02:47 +08:00
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std::string PassName;
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|
2010-08-19 01:42:59 +08:00
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LoopPassPrinter(const PassInfo *PI, raw_ostream &out) :
|
2010-09-08 23:02:47 +08:00
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|
LoopPass(ID), PassToPrint(PI), Out(out) {
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|
std::string PassToPrintName = PassToPrint->getPassName();
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|
PassName = "LoopPass Printer: " + PassToPrintName;
|
|
|
|
}
|
|
|
|
|
2007-07-05 23:32:03 +08:00
|
|
|
|
|
|
|
virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
|
2010-09-08 23:02:51 +08:00
|
|
|
if (!Quiet)
|
2010-08-19 01:42:59 +08:00
|
|
|
Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
|
2010-09-08 23:02:51 +08:00
|
|
|
|
2007-07-05 23:32:03 +08:00
|
|
|
// Get and print pass...
|
2010-09-08 23:02:51 +08:00
|
|
|
getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
|
|
|
|
L->getHeader()->getParent()->getParent());
|
2007-07-05 23:32:03 +08:00
|
|
|
return false;
|
|
|
|
}
|
2009-08-22 07:29:40 +08:00
|
|
|
|
2010-09-08 23:02:47 +08:00
|
|
|
virtual const char *getPassName() const { return PassName.c_str(); }
|
2007-07-05 23:32:03 +08:00
|
|
|
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
2010-08-07 02:33:48 +08:00
|
|
|
AU.addRequiredID(PassToPrint->getTypeInfo());
|
2007-07-05 23:32:03 +08:00
|
|
|
AU.setPreservesAll();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
char LoopPassPrinter::ID = 0;
|
|
|
|
|
2010-10-20 09:54:44 +08:00
|
|
|
struct RegionPassPrinter : public RegionPass {
|
|
|
|
static char ID;
|
|
|
|
const PassInfo *PassToPrint;
|
|
|
|
raw_ostream &Out;
|
|
|
|
std::string PassName;
|
|
|
|
|
|
|
|
RegionPassPrinter(const PassInfo *PI, raw_ostream &out) : RegionPass(ID),
|
|
|
|
PassToPrint(PI), Out(out) {
|
|
|
|
std::string PassToPrintName = PassToPrint->getPassName();
|
2011-01-21 05:03:20 +08:00
|
|
|
PassName = "RegionPass Printer: " + PassToPrintName;
|
2010-10-20 09:54:44 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
|
|
|
|
if (!Quiet) {
|
|
|
|
Out << "Printing analysis '" << PassToPrint->getPassName() << "' for "
|
|
|
|
<< "region: '" << R->getNameStr() << "' in function '"
|
|
|
|
<< R->getEntry()->getParent()->getNameStr() << "':\n";
|
|
|
|
}
|
|
|
|
// Get and print pass...
|
|
|
|
getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
|
|
|
|
R->getEntry()->getParent()->getParent());
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2011-01-21 05:03:20 +08:00
|
|
|
virtual const char *getPassName() const { return PassName.c_str(); }
|
2010-10-20 09:54:44 +08:00
|
|
|
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
|
|
AU.addRequiredID(PassToPrint->getTypeInfo());
|
|
|
|
AU.setPreservesAll();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
char RegionPassPrinter::ID = 0;
|
|
|
|
|
2006-08-18 14:34:30 +08:00
|
|
|
struct BasicBlockPassPrinter : public BasicBlockPass {
|
|
|
|
const PassInfo *PassToPrint;
|
2010-08-19 01:42:59 +08:00
|
|
|
raw_ostream &Out;
|
2007-05-03 09:11:54 +08:00
|
|
|
static char ID;
|
2010-09-08 23:02:47 +08:00
|
|
|
std::string PassName;
|
|
|
|
|
2010-08-19 01:42:59 +08:00
|
|
|
BasicBlockPassPrinter(const PassInfo *PI, raw_ostream &out)
|
2010-09-08 23:02:47 +08:00
|
|
|
: BasicBlockPass(ID), PassToPrint(PI), Out(out) {
|
|
|
|
std::string PassToPrintName = PassToPrint->getPassName();
|
|
|
|
PassName = "BasicBlockPass Printer: " + PassToPrintName;
|
|
|
|
}
|
2006-08-18 14:34:30 +08:00
|
|
|
|
|
|
|
virtual bool runOnBasicBlock(BasicBlock &BB) {
|
2010-09-08 23:02:51 +08:00
|
|
|
if (!Quiet)
|
2010-08-19 01:42:59 +08:00
|
|
|
Out << "Printing Analysis info for BasicBlock '" << BB.getName()
|
|
|
|
<< "': Pass " << PassToPrint->getPassName() << ":\n";
|
2006-08-18 14:34:30 +08:00
|
|
|
|
|
|
|
// Get and print pass...
|
2011-04-06 02:41:31 +08:00
|
|
|
getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
|
2010-08-07 02:33:48 +08:00
|
|
|
BB.getParent()->getParent());
|
2006-08-18 14:34:30 +08:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2010-09-08 23:02:47 +08:00
|
|
|
virtual const char *getPassName() const { return PassName.c_str(); }
|
2006-08-18 14:34:30 +08:00
|
|
|
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
2010-08-07 02:33:48 +08:00
|
|
|
AU.addRequiredID(PassToPrint->getTypeInfo());
|
2006-08-18 14:34:30 +08:00
|
|
|
AU.setPreservesAll();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2007-05-03 09:11:54 +08:00
|
|
|
char BasicBlockPassPrinter::ID = 0;
|
2010-12-07 08:33:43 +08:00
|
|
|
|
2011-04-05 03:51:17 +08:00
|
|
|
struct BreakpointPrinter : public ModulePass {
|
2010-12-07 08:33:43 +08:00
|
|
|
raw_ostream &Out;
|
|
|
|
static char ID;
|
|
|
|
|
|
|
|
BreakpointPrinter(raw_ostream &out)
|
2011-04-05 03:51:17 +08:00
|
|
|
: ModulePass(ID), Out(out) {
|
2010-12-07 08:33:43 +08:00
|
|
|
}
|
|
|
|
|
2011-04-05 03:51:17 +08:00
|
|
|
void getContextName(DIDescriptor Context, std::string &N) {
|
|
|
|
if (Context.isNameSpace()) {
|
|
|
|
DINameSpace NS(Context);
|
|
|
|
if (!NS.getName().empty()) {
|
|
|
|
getContextName(NS.getContext(), N);
|
|
|
|
N = N + NS.getName().str() + "::";
|
|
|
|
}
|
|
|
|
} else if (Context.isType()) {
|
|
|
|
DIType TY(Context);
|
|
|
|
if (!TY.getName().empty()) {
|
|
|
|
getContextName(TY.getContext(), N);
|
|
|
|
N = N + TY.getName().str() + "::";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
virtual bool runOnModule(Module &M) {
|
|
|
|
StringSet<> Processed;
|
|
|
|
if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
|
|
|
|
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
|
|
|
|
std::string Name;
|
|
|
|
DISubprogram SP(NMD->getOperand(i));
|
|
|
|
if (SP.Verify())
|
|
|
|
getContextName(SP.getContext(), Name);
|
|
|
|
Name = Name + SP.getDisplayName().str();
|
|
|
|
if (!Name.empty() && Processed.insert(Name)) {
|
|
|
|
Out << Name << "\n";
|
|
|
|
}
|
2011-02-01 05:36:24 +08:00
|
|
|
}
|
2010-12-07 08:33:43 +08:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
|
|
AU.setPreservesAll();
|
|
|
|
}
|
|
|
|
};
|
2011-05-22 08:21:33 +08:00
|
|
|
|
|
|
|
} // anonymous namespace
|
2010-12-07 08:33:43 +08:00
|
|
|
|
|
|
|
char BreakpointPrinter::ID = 0;
|
|
|
|
|
2011-05-22 08:21:33 +08:00
|
|
|
static inline void addPass(PassManagerBase &PM, Pass *P) {
|
2007-02-02 22:46:29 +08:00
|
|
|
// Add the pass to the pass manager...
|
|
|
|
PM.add(P);
|
|
|
|
|
|
|
|
// If we are verifying all of the intermediate steps, add the verifier...
|
|
|
|
if (VerifyEach) PM.add(createVerifierPass());
|
|
|
|
}
|
|
|
|
|
2009-08-22 07:29:40 +08:00
|
|
|
/// AddOptimizationPasses - This routine adds optimization passes
|
|
|
|
/// based on selected optimization level, OptLevel. This routine
|
2008-09-17 06:25:14 +08:00
|
|
|
/// duplicates llvm-gcc behaviour.
|
|
|
|
///
|
|
|
|
/// OptLevel - Optimization Level
|
2011-05-22 08:21:33 +08:00
|
|
|
static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
|
|
|
|
unsigned OptLevel) {
|
|
|
|
PassManagerBuilder Builder;
|
|
|
|
Builder.OptLevel = OptLevel;
|
2009-06-04 02:22:15 +08:00
|
|
|
|
2010-01-19 06:38:31 +08:00
|
|
|
if (DisableInline) {
|
|
|
|
// No inlining pass
|
2011-06-07 06:13:27 +08:00
|
|
|
} else if (OptLevel > 1) {
|
2010-11-03 07:40:28 +08:00
|
|
|
unsigned Threshold = 225;
|
2010-01-19 06:38:31 +08:00
|
|
|
if (OptLevel > 2)
|
2010-11-03 07:40:28 +08:00
|
|
|
Threshold = 275;
|
2011-05-22 08:21:33 +08:00
|
|
|
Builder.Inliner = createFunctionInliningPass(Threshold);
|
2010-01-19 06:38:31 +08:00
|
|
|
} else {
|
2011-05-22 08:21:33 +08:00
|
|
|
Builder.Inliner = createAlwaysInlinerPass();
|
2010-01-19 06:38:31 +08:00
|
|
|
}
|
2011-05-22 08:21:33 +08:00
|
|
|
Builder.DisableUnitAtATime = !UnitAtATime;
|
|
|
|
Builder.DisableUnrollLoops = OptLevel == 0;
|
|
|
|
Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
|
|
|
|
|
|
|
|
Builder.populateFunctionPassManager(FPM);
|
|
|
|
Builder.populateModulePassManager(MPM);
|
2008-09-17 06:25:14 +08:00
|
|
|
}
|
|
|
|
|
2011-05-22 08:21:33 +08:00
|
|
|
static void AddStandardCompilePasses(PassManagerBase &PM) {
|
2007-02-02 22:46:29 +08:00
|
|
|
PM.add(createVerifierPass()); // Verify that input is correct
|
|
|
|
|
|
|
|
// If the -strip-debug command line option was specified, do it.
|
|
|
|
if (StripDebug)
|
|
|
|
addPass(PM, createStripSymbolsPass(true));
|
|
|
|
|
|
|
|
if (DisableOptimizations) return;
|
|
|
|
|
2009-06-04 02:22:15 +08:00
|
|
|
// -std-compile-opts adds the same module passes as -O3.
|
2011-05-22 08:21:33 +08:00
|
|
|
PassManagerBuilder Builder;
|
|
|
|
if (!DisableInline)
|
|
|
|
Builder.Inliner = createFunctionInliningPass();
|
|
|
|
Builder.OptLevel = 3;
|
|
|
|
Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
|
|
|
|
Builder.populateModulePassManager(PM);
|
2007-02-02 22:46:29 +08:00
|
|
|
}
|
|
|
|
|
2011-05-22 08:21:33 +08:00
|
|
|
static void AddStandardLinkPasses(PassManagerBase &PM) {
|
2009-07-18 02:09:39 +08:00
|
|
|
PM.add(createVerifierPass()); // Verify that input is correct
|
|
|
|
|
|
|
|
// If the -strip-debug command line option was specified, do it.
|
|
|
|
if (StripDebug)
|
|
|
|
addPass(PM, createStripSymbolsPass(true));
|
|
|
|
|
|
|
|
if (DisableOptimizations) return;
|
|
|
|
|
2011-05-22 08:21:33 +08:00
|
|
|
PassManagerBuilder Builder;
|
|
|
|
Builder.populateLTOPassManager(PM, /*Internalize=*/ !DisableInternalize,
|
|
|
|
/*RunInliner=*/ !DisableInline);
|
2009-07-18 02:09:39 +08:00
|
|
|
}
|
|
|
|
|
2001-06-07 04:29:01 +08:00
|
|
|
|
2002-07-24 02:12:22 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// main for opt
|
|
|
|
//
|
2001-07-23 10:35:57 +08:00
|
|
|
int main(int argc, char **argv) {
|
2009-12-09 08:41:28 +08:00
|
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
|
|
llvm::PrettyStackTraceProgram X(argc, argv);
|
2010-09-01 22:20:41 +08:00
|
|
|
|
2010-01-05 09:30:32 +08:00
|
|
|
// Enable debug stream buffering.
|
|
|
|
EnableDebugBuffering = true;
|
|
|
|
|
2009-12-09 08:41:28 +08:00
|
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
2009-07-16 06:16:10 +08:00
|
|
|
LLVMContext &Context = getGlobalContext();
|
2011-04-06 02:41:31 +08:00
|
|
|
|
2010-10-20 01:21:58 +08:00
|
|
|
// Initialize passes
|
|
|
|
PassRegistry &Registry = *PassRegistry::getPassRegistry();
|
|
|
|
initializeCore(Registry);
|
|
|
|
initializeScalarOpts(Registry);
|
|
|
|
initializeIPO(Registry);
|
|
|
|
initializeAnalysis(Registry);
|
|
|
|
initializeIPA(Registry);
|
|
|
|
initializeTransformUtils(Registry);
|
|
|
|
initializeInstCombine(Registry);
|
|
|
|
initializeInstrumentation(Registry);
|
|
|
|
initializeTarget(Registry);
|
2011-04-06 02:41:31 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
cl::ParseCommandLineOptions(argc, argv,
|
|
|
|
"llvm .bc -> .bc modular optimizer and analysis printer\n");
|
2004-12-30 13:36:08 +08:00
|
|
|
|
2010-12-03 04:35:16 +08:00
|
|
|
if (AnalyzeOnly && NoOutput) {
|
|
|
|
errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// Allocate a full target machine description only if necessary.
|
|
|
|
// FIXME: The choice of target should be controllable on the command line.
|
|
|
|
std::auto_ptr<TargetMachine> target;
|
2008-08-28 04:51:49 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
SMDiagnostic Err;
|
2004-12-30 13:36:08 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// Load the input module...
|
|
|
|
std::auto_ptr<Module> M;
|
|
|
|
M.reset(ParseIRFile(InputFilename, Err, Context));
|
2009-08-22 07:29:40 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (M.get() == 0) {
|
2011-10-16 12:47:35 +08:00
|
|
|
Err.print(argv[0], errs());
|
2009-10-22 08:46:41 +08:00
|
|
|
return 1;
|
|
|
|
}
|
2002-01-21 06:54:45 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// Figure out what stream we are supposed to write to...
|
2010-08-20 09:07:01 +08:00
|
|
|
OwningPtr<tool_output_file> Out;
|
2010-08-19 01:42:59 +08:00
|
|
|
if (NoOutput) {
|
2010-08-19 01:40:10 +08:00
|
|
|
if (!OutputFilename.empty())
|
|
|
|
errs() << "WARNING: The -o (output filename) option is ignored when\n"
|
2010-08-19 01:42:59 +08:00
|
|
|
"the --disable-output option is used.\n";
|
2010-08-19 01:40:10 +08:00
|
|
|
} else {
|
|
|
|
// Default to standard output.
|
|
|
|
if (OutputFilename.empty())
|
|
|
|
OutputFilename = "-";
|
|
|
|
|
|
|
|
std::string ErrorInfo;
|
2010-08-20 09:07:01 +08:00
|
|
|
Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
|
|
|
|
raw_fd_ostream::F_Binary));
|
2010-08-19 01:40:10 +08:00
|
|
|
if (!ErrorInfo.empty()) {
|
|
|
|
errs() << ErrorInfo << '\n';
|
|
|
|
return 1;
|
2001-06-07 04:29:01 +08:00
|
|
|
}
|
2009-10-22 08:46:41 +08:00
|
|
|
}
|
2002-04-19 03:55:25 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// If the output is set to be emitted to standard out, and standard out is a
|
|
|
|
// console, print out a warning message and refuse to do it. We don't
|
|
|
|
// impress anyone by spewing tons of binary goo to a terminal.
|
2010-01-18 01:47:24 +08:00
|
|
|
if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
|
2010-09-01 22:20:41 +08:00
|
|
|
if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
|
2009-10-22 08:46:41 +08:00
|
|
|
NoOutput = true;
|
|
|
|
|
|
|
|
// Create a PassManager to hold and optimize the collection of passes we are
|
2011-02-19 06:13:01 +08:00
|
|
|
// about to build.
|
2009-10-22 08:46:41 +08:00
|
|
|
//
|
|
|
|
PassManager Passes;
|
|
|
|
|
2011-02-19 06:13:01 +08:00
|
|
|
// Add an appropriate TargetLibraryInfo pass for the module's triple.
|
2011-02-19 06:34:03 +08:00
|
|
|
TargetLibraryInfo *TLI = new TargetLibraryInfo(Triple(M->getTargetTriple()));
|
2011-04-06 02:41:31 +08:00
|
|
|
|
2011-02-19 06:34:03 +08:00
|
|
|
// The -disable-simplify-libcalls flag actually disables all builtin optzns.
|
|
|
|
if (DisableSimplifyLibCalls)
|
|
|
|
TLI->disableAllFunctions();
|
|
|
|
Passes.add(TLI);
|
2011-04-06 02:41:31 +08:00
|
|
|
|
2011-02-19 06:13:01 +08:00
|
|
|
// Add an appropriate TargetData instance for this module.
|
2009-10-22 08:46:41 +08:00
|
|
|
TargetData *TD = 0;
|
|
|
|
const std::string &ModuleDataLayout = M.get()->getDataLayout();
|
|
|
|
if (!ModuleDataLayout.empty())
|
|
|
|
TD = new TargetData(ModuleDataLayout);
|
2009-11-03 23:29:06 +08:00
|
|
|
else if (!DefaultDataLayout.empty())
|
2009-10-22 08:46:41 +08:00
|
|
|
TD = new TargetData(DefaultDataLayout);
|
|
|
|
|
|
|
|
if (TD)
|
|
|
|
Passes.add(TD);
|
|
|
|
|
2011-05-22 08:21:33 +08:00
|
|
|
OwningPtr<FunctionPassManager> FPasses;
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
|
2011-05-22 08:21:33 +08:00
|
|
|
FPasses.reset(new FunctionPassManager(M.get()));
|
2009-10-22 08:44:10 +08:00
|
|
|
if (TD)
|
2009-10-22 08:46:41 +08:00
|
|
|
FPasses->add(new TargetData(*TD));
|
|
|
|
}
|
2009-08-22 07:29:40 +08:00
|
|
|
|
2010-12-07 08:33:43 +08:00
|
|
|
if (PrintBreakpoints) {
|
|
|
|
// Default to standard output.
|
|
|
|
if (!Out) {
|
|
|
|
if (OutputFilename.empty())
|
|
|
|
OutputFilename = "-";
|
2011-04-06 02:41:31 +08:00
|
|
|
|
2010-12-07 08:33:43 +08:00
|
|
|
std::string ErrorInfo;
|
|
|
|
Out.reset(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
|
|
|
|
raw_fd_ostream::F_Binary));
|
|
|
|
if (!ErrorInfo.empty()) {
|
|
|
|
errs() << ErrorInfo << '\n';
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Passes.add(new BreakpointPrinter(Out->os()));
|
|
|
|
NoOutput = true;
|
|
|
|
}
|
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// If the -strip-debug command line option was specified, add it. If
|
|
|
|
// -std-compile-opts was also specified, it will handle StripDebug.
|
|
|
|
if (StripDebug && !StandardCompileOpts)
|
|
|
|
addPass(Passes, createStripSymbolsPass(true));
|
|
|
|
|
|
|
|
// Create a new optimization pass for each one specified on the command line
|
|
|
|
for (unsigned i = 0; i < PassList.size(); ++i) {
|
|
|
|
// Check to see if -std-compile-opts was specified before this option. If
|
|
|
|
// so, handle it.
|
|
|
|
if (StandardCompileOpts &&
|
|
|
|
StandardCompileOpts.getPosition() < PassList.getPosition(i)) {
|
2008-07-14 03:35:21 +08:00
|
|
|
AddStandardCompilePasses(Passes);
|
|
|
|
StandardCompileOpts = false;
|
2009-08-22 07:29:40 +08:00
|
|
|
}
|
2002-01-31 08:47:12 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (StandardLinkOpts &&
|
|
|
|
StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
|
2009-07-18 02:09:39 +08:00
|
|
|
AddStandardLinkPasses(Passes);
|
|
|
|
StandardLinkOpts = false;
|
2009-08-22 07:29:40 +08:00
|
|
|
}
|
2009-07-18 02:09:39 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
|
2009-07-18 02:09:39 +08:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 1);
|
2009-10-22 08:46:41 +08:00
|
|
|
OptLevelO1 = false;
|
2009-07-18 02:09:39 +08:00
|
|
|
}
|
2008-09-17 06:25:14 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
|
2009-07-18 02:09:39 +08:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2);
|
2009-10-22 08:46:41 +08:00
|
|
|
OptLevelO2 = false;
|
2009-07-18 02:09:39 +08:00
|
|
|
}
|
2008-09-17 06:25:14 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
|
2009-07-18 02:09:39 +08:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 3);
|
2009-10-22 08:46:41 +08:00
|
|
|
OptLevelO3 = false;
|
2009-07-18 02:09:39 +08:00
|
|
|
}
|
2008-09-17 06:25:14 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
const PassInfo *PassInf = PassList[i];
|
|
|
|
Pass *P = 0;
|
|
|
|
if (PassInf->getNormalCtor())
|
|
|
|
P = PassInf->getNormalCtor()();
|
|
|
|
else
|
|
|
|
errs() << argv[0] << ": cannot create pass: "
|
|
|
|
<< PassInf->getPassName() << "\n";
|
|
|
|
if (P) {
|
2010-02-18 20:57:05 +08:00
|
|
|
PassKind Kind = P->getPassKind();
|
2009-10-22 08:46:41 +08:00
|
|
|
addPass(Passes, P);
|
|
|
|
|
|
|
|
if (AnalyzeOnly) {
|
2010-02-18 20:57:05 +08:00
|
|
|
switch (Kind) {
|
2010-01-22 14:03:06 +08:00
|
|
|
case PT_BasicBlock:
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(new BasicBlockPassPrinter(PassInf, Out->os()));
|
2010-01-22 14:03:06 +08:00
|
|
|
break;
|
2010-10-20 09:54:44 +08:00
|
|
|
case PT_Region:
|
|
|
|
Passes.add(new RegionPassPrinter(PassInf, Out->os()));
|
|
|
|
break;
|
2010-01-22 14:03:06 +08:00
|
|
|
case PT_Loop:
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(new LoopPassPrinter(PassInf, Out->os()));
|
2010-01-22 14:03:06 +08:00
|
|
|
break;
|
|
|
|
case PT_Function:
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(new FunctionPassPrinter(PassInf, Out->os()));
|
2010-01-22 14:03:06 +08:00
|
|
|
break;
|
|
|
|
case PT_CallGraphSCC:
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(new CallGraphSCCPassPrinter(PassInf, Out->os()));
|
2010-01-22 14:03:06 +08:00
|
|
|
break;
|
|
|
|
default:
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(new ModulePassPrinter(PassInf, Out->os()));
|
2010-01-22 14:03:06 +08:00
|
|
|
break;
|
|
|
|
}
|
2009-10-22 08:46:41 +08:00
|
|
|
}
|
2008-09-17 06:25:14 +08:00
|
|
|
}
|
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (PrintEachXForm)
|
|
|
|
Passes.add(createPrintModulePass(&errs()));
|
|
|
|
}
|
2002-02-21 01:56:53 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// If -std-compile-opts was specified at the end of the pass list, add them.
|
|
|
|
if (StandardCompileOpts) {
|
|
|
|
AddStandardCompilePasses(Passes);
|
|
|
|
StandardCompileOpts = false;
|
|
|
|
}
|
2002-01-31 08:47:12 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (StandardLinkOpts) {
|
|
|
|
AddStandardLinkPasses(Passes);
|
|
|
|
StandardLinkOpts = false;
|
|
|
|
}
|
2001-06-07 04:29:01 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO1)
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 1);
|
|
|
|
|
|
|
|
if (OptLevelO2)
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2);
|
2006-08-18 14:34:30 +08:00
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
if (OptLevelO3)
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 3);
|
|
|
|
|
2011-05-22 14:44:19 +08:00
|
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
|
|
|
|
FPasses->doInitialization();
|
2011-05-22 08:21:33 +08:00
|
|
|
for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
|
|
|
|
FPasses->run(*F);
|
2011-05-22 14:44:19 +08:00
|
|
|
FPasses->doFinalization();
|
|
|
|
}
|
2009-10-22 08:46:41 +08:00
|
|
|
|
|
|
|
// Check that the module is well formed on completion of optimization
|
|
|
|
if (!NoVerify && !VerifyEach)
|
|
|
|
Passes.add(createVerifierPass());
|
|
|
|
|
2010-08-19 01:42:59 +08:00
|
|
|
// Write bitcode or assembly to the output as the last step...
|
2009-10-22 08:46:41 +08:00
|
|
|
if (!NoOutput && !AnalyzeOnly) {
|
|
|
|
if (OutputAssembly)
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(createPrintModulePass(&Out->os()));
|
2009-10-22 08:46:41 +08:00
|
|
|
else
|
2010-09-01 22:20:41 +08:00
|
|
|
Passes.add(createBitcodeWriterPass(Out->os()));
|
2009-10-22 08:46:41 +08:00
|
|
|
}
|
|
|
|
|
2011-04-06 02:54:36 +08:00
|
|
|
// Before executing passes, print the final values of the LLVM options.
|
|
|
|
cl::PrintOptionValues();
|
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
// Now that we have all of the passes ready, run them.
|
|
|
|
Passes.run(*M.get());
|
|
|
|
|
2010-08-20 09:07:01 +08:00
|
|
|
// Declare success.
|
2010-12-07 08:33:43 +08:00
|
|
|
if (!NoOutput || PrintBreakpoints)
|
2010-08-20 09:07:01 +08:00
|
|
|
Out->keep();
|
|
|
|
|
2009-10-22 08:46:41 +08:00
|
|
|
return 0;
|
2001-06-07 04:29:01 +08:00
|
|
|
}
|