2004-04-02 05:06:57 +00:00
|
|
|
//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
|
2005-04-22 00:00:37 +00:00
|
|
|
//
|
2003-10-20 17:47:21 +00:00
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
2007-12-29 20:44:31 +00:00
|
|
|
// This file is distributed under the University of Illinois Open Source
|
|
|
|
// License. See LICENSE.TXT for details.
|
2005-04-22 00:00:37 +00:00
|
|
|
//
|
2003-10-20 17:47:21 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2001-06-06 20:29:01 +00:00
|
|
|
//
|
|
|
|
// Optimizations may be specified an arbitrary number of times on the command
|
2006-08-18 06:34:30 +00:00
|
|
|
// line, They are run in the order specified.
|
2001-06-06 20:29:01 +00:00
|
|
|
//
|
2001-10-18 06:05:15 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
2001-06-06 20:29:01 +00:00
|
|
|
|
2014-02-12 16:48:02 +00:00
|
|
|
#include "BreakpointPrinter.h"
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
#include "NewPMDriver.h"
|
2014-02-10 23:34:23 +00:00
|
|
|
#include "PassPrinters.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/ADT/Triple.h"
|
|
|
|
#include "llvm/Analysis/CallGraph.h"
|
2013-01-07 15:26:48 +00:00
|
|
|
#include "llvm/Analysis/CallGraphSCCPass.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/Analysis/LoopPass.h"
|
|
|
|
#include "llvm/Analysis/RegionPass.h"
|
2014-01-13 07:38:24 +00:00
|
|
|
#include "llvm/Bitcode/BitcodeWriterPass.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/CodeGen/CommandFlags.h"
|
2013-01-02 11:36:10 +00:00
|
|
|
#include "llvm/IR/DataLayout.h"
|
2014-01-12 11:10:32 +00:00
|
|
|
#include "llvm/IR/IRPrintingPasses.h"
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
#include "llvm/IR/LLVMContext.h"
|
2014-03-04 12:32:42 +00:00
|
|
|
#include "llvm/IR/LegacyPassNameParser.h"
|
2013-01-02 11:36:10 +00:00
|
|
|
#include "llvm/IR/Module.h"
|
2014-01-13 09:26:24 +00:00
|
|
|
#include "llvm/IR/Verifier.h"
|
2013-03-26 02:25:37 +00:00
|
|
|
#include "llvm/IRReader/IRReader.h"
|
2014-03-04 10:07:28 +00:00
|
|
|
#include "llvm/InitializePasses.h"
|
2013-01-10 21:56:40 +00:00
|
|
|
#include "llvm/LinkAllIR.h"
|
2013-01-19 08:03:47 +00:00
|
|
|
#include "llvm/LinkAllPasses.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/MC/SubtargetFeature.h"
|
2002-01-31 00:47:12 +00:00
|
|
|
#include "llvm/PassManager.h"
|
2010-01-05 01:30:32 +00:00
|
|
|
#include "llvm/Support/Debug.h"
|
2014-04-29 23:26:49 +00:00
|
|
|
#include "llvm/Support/FileSystem.h"
|
2006-12-06 01:18:01 +00:00
|
|
|
#include "llvm/Support/ManagedStatic.h"
|
2004-09-01 22:55:40 +00:00
|
|
|
#include "llvm/Support/PluginLoader.h"
|
2009-12-09 00:41:28 +00:00
|
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/Support/Signals.h"
|
2013-03-26 02:25:37 +00:00
|
|
|
#include "llvm/Support/SourceMgr.h"
|
2004-09-01 22:55:40 +00:00
|
|
|
#include "llvm/Support/SystemUtils.h"
|
2012-10-18 23:22:48 +00:00
|
|
|
#include "llvm/Support/TargetRegistry.h"
|
2012-10-24 17:23:50 +00:00
|
|
|
#include "llvm/Support/TargetSelect.h"
|
2012-12-04 10:44:52 +00:00
|
|
|
#include "llvm/Support/ToolOutputFile.h"
|
|
|
|
#include "llvm/Target/TargetLibraryInfo.h"
|
|
|
|
#include "llvm/Target/TargetMachine.h"
|
2011-08-02 21:50:24 +00:00
|
|
|
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
|
2002-07-23 18:12:22 +00:00
|
|
|
#include <algorithm>
|
2012-12-04 10:44:52 +00:00
|
|
|
#include <memory>
|
2003-11-11 22:41:34 +00:00
|
|
|
using namespace llvm;
|
2014-01-13 03:08:40 +00:00
|
|
|
using namespace opt_tool;
|
2002-04-13 18:32:47 +00:00
|
|
|
|
2002-07-23 18:12:22 +00:00
|
|
|
// The OptimizationList is automatically populated with registered Passes by the
|
|
|
|
// PassNameParser.
|
2002-01-31 00:47:12 +00:00
|
|
|
//
|
2006-08-27 22:07:01 +00:00
|
|
|
static cl::list<const PassInfo*, bool, PassNameParser>
|
|
|
|
PassList(cl::desc("Optimizations available:"));
|
2001-06-06 20:29:01 +00:00
|
|
|
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
// This flag specifies a textual description of the optimization pass pipeline
|
|
|
|
// to run over the module. This flag switches opt to use the new pass manager
|
|
|
|
// infrastructure, completely disabling all of the flags specific to the old
|
|
|
|
// pass management.
|
|
|
|
static cl::opt<std::string> PassPipeline(
|
|
|
|
"passes",
|
|
|
|
cl::desc("A textual description of the pass pipeline for optimizing"),
|
|
|
|
cl::Hidden);
|
|
|
|
|
2002-07-23 18:12:22 +00:00
|
|
|
// Other command line options...
|
2002-01-31 00:47:12 +00:00
|
|
|
//
|
2003-05-22 20:13:16 +00:00
|
|
|
static cl::opt<std::string>
|
2009-08-21 23:29:40 +00:00
|
|
|
InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
|
2006-08-18 06:34:30 +00:00
|
|
|
cl::init("-"), cl::value_desc("filename"));
|
2002-07-22 02:10:13 +00:00
|
|
|
|
2003-05-22 20:13:16 +00:00
|
|
|
static cl::opt<std::string>
|
2002-07-22 02:10:13 +00:00
|
|
|
OutputFilename("o", cl::desc("Override output filename"),
|
2010-08-18 17:40:10 +00:00
|
|
|
cl::value_desc("filename"));
|
2002-07-22 02:10:13 +00:00
|
|
|
|
|
|
|
static cl::opt<bool>
|
2009-08-25 15:34:52 +00:00
|
|
|
Force("f", cl::desc("Enable binary output on terminals"));
|
2002-07-22 02:10:13 +00:00
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
PrintEachXForm("p", cl::desc("Print module after each transformation"));
|
|
|
|
|
2003-02-12 18:43:33 +00:00
|
|
|
static cl::opt<bool>
|
2003-02-26 20:00:41 +00:00
|
|
|
NoOutput("disable-output",
|
2007-07-05 17:07:56 +00:00
|
|
|
cl::desc("Do not write result bitcode file"), cl::Hidden);
|
2003-02-12 18:43:33 +00:00
|
|
|
|
2009-09-05 11:34:53 +00:00
|
|
|
static cl::opt<bool>
|
2009-10-14 20:01:39 +00:00
|
|
|
OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
|
2009-09-05 11:34:53 +00:00
|
|
|
|
2003-02-12 18:45:08 +00:00
|
|
|
static cl::opt<bool>
|
2003-02-26 20:00:41 +00:00
|
|
|
NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
|
2003-02-12 18:45:08 +00:00
|
|
|
|
2007-02-02 14:46:29 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
VerifyEach("verify-each", cl::desc("Verify after each transform"));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
StripDebug("strip-debug",
|
|
|
|
cl::desc("Strip debugger symbol info from translation unit"));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
|
|
|
|
|
2009-08-21 23:29:40 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
DisableOptimizations("disable-opt",
|
2007-02-02 14:46:29 +00:00
|
|
|
cl::desc("Do not run any optimization passes"));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
2009-08-21 23:29:40 +00:00
|
|
|
StandardCompileOpts("std-compile-opts",
|
2007-02-02 14:46:29 +00:00
|
|
|
cl::desc("Include the standard compile time optimizations"));
|
|
|
|
|
2009-07-17 18:09:39 +00:00
|
|
|
static cl::opt<bool>
|
2009-08-21 23:29:40 +00:00
|
|
|
StandardLinkOpts("std-link-opts",
|
2009-07-17 18:09:39 +00:00
|
|
|
cl::desc("Include the standard link time optimizations"));
|
|
|
|
|
2008-09-16 22:25:14 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
OptLevelO1("O1",
|
2012-05-16 08:32:49 +00:00
|
|
|
cl::desc("Optimization level 1. Similar to clang -O1"));
|
2008-09-16 22:25:14 +00:00
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
OptLevelO2("O2",
|
2012-05-16 08:32:49 +00:00
|
|
|
cl::desc("Optimization level 2. Similar to clang -O2"));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
OptLevelOs("Os",
|
|
|
|
cl::desc("Like -O2 with extra optimizations for size. Similar to clang -Os"));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
OptLevelOz("Oz",
|
|
|
|
cl::desc("Like -Os but reduces code size further. Similar to clang -Oz"));
|
2008-09-16 22:25:14 +00:00
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
OptLevelO3("O3",
|
2012-05-16 08:32:49 +00:00
|
|
|
cl::desc("Optimization level 3. Similar to clang -O3"));
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2012-04-17 23:05:48 +00:00
|
|
|
static cl::opt<std::string>
|
|
|
|
TargetTriple("mtriple", cl::desc("Override target triple for module"));
|
|
|
|
|
2008-09-16 22:25:14 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
UnitAtATime("funit-at-a-time",
|
2014-08-21 19:22:24 +00:00
|
|
|
cl::desc("Enable IPO. This corresponds to gcc's -funit-at-a-time"),
|
2010-07-12 08:16:59 +00:00
|
|
|
cl::init(true));
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2013-08-28 18:33:10 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
DisableLoopUnrolling("disable-loop-unrolling",
|
|
|
|
cl::desc("Disable loop unrolling in all relevant passes"),
|
|
|
|
cl::init(false));
|
2013-12-03 16:33:06 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
DisableLoopVectorization("disable-loop-vectorization",
|
|
|
|
cl::desc("Disable the loop vectorization pass"),
|
|
|
|
cl::init(false));
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
DisableSLPVectorization("disable-slp-vectorization",
|
|
|
|
cl::desc("Disable the slp vectorization pass"),
|
|
|
|
cl::init(false));
|
|
|
|
|
2013-08-28 18:33:10 +00:00
|
|
|
|
2008-09-16 22:25:14 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
DisableSimplifyLibCalls("disable-simplify-libcalls",
|
2008-09-17 16:01:39 +00:00
|
|
|
cl::desc("Disable simplify-libcalls"));
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2002-07-22 02:10:13 +00:00
|
|
|
static cl::opt<bool>
|
2004-05-27 20:32:10 +00:00
|
|
|
Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
|
2002-07-22 02:10:13 +00:00
|
|
|
|
2004-05-27 16:28:54 +00:00
|
|
|
static cl::alias
|
|
|
|
QuietA("quiet", cl::desc("Alias for -q"), cl::aliasopt(Quiet));
|
|
|
|
|
2006-08-18 06:34:30 +00:00
|
|
|
static cl::opt<bool>
|
|
|
|
AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
|
|
|
|
|
2010-12-07 00:33:43 +00:00
|
|
|
static cl::opt<bool>
|
2011-04-05 18:41:31 +00:00
|
|
|
PrintBreakpoints("print-breakpoints-for-testing",
|
2010-12-07 00:33:43 +00:00
|
|
|
cl::desc("Print select breakpoints location for testing"));
|
|
|
|
|
2009-10-22 00:44:10 +00:00
|
|
|
static cl::opt<std::string>
|
2011-04-05 18:41:31 +00:00
|
|
|
DefaultDataLayout("default-data-layout",
|
2009-10-22 00:44:10 +00:00
|
|
|
cl::desc("data layout string to use if not specified by module"),
|
|
|
|
cl::value_desc("layout-string"), cl::init(""));
|
|
|
|
|
2006-08-18 06:34:30 +00:00
|
|
|
|
2010-12-07 00:33:43 +00:00
|
|
|
|
2011-05-22 00:21:33 +00:00
|
|
|
static inline void addPass(PassManagerBase &PM, Pass *P) {
|
2007-02-02 14:46:29 +00:00
|
|
|
// Add the pass to the pass manager...
|
|
|
|
PM.add(P);
|
|
|
|
|
|
|
|
// If we are verifying all of the intermediate steps, add the verifier...
|
2014-04-15 16:27:38 +00:00
|
|
|
if (VerifyEach) {
|
|
|
|
PM.add(createVerifierPass());
|
|
|
|
PM.add(createDebugInfoVerifierPass());
|
|
|
|
}
|
2007-02-02 14:46:29 +00:00
|
|
|
}
|
|
|
|
|
2014-08-21 19:22:24 +00:00
|
|
|
/// This routine adds optimization passes based on selected optimization level,
|
|
|
|
/// OptLevel.
|
2008-09-16 22:25:14 +00:00
|
|
|
///
|
|
|
|
/// OptLevel - Optimization Level
|
2011-05-22 00:21:33 +00:00
|
|
|
static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
|
2012-05-16 08:32:49 +00:00
|
|
|
unsigned OptLevel, unsigned SizeLevel) {
|
2014-04-15 16:27:38 +00:00
|
|
|
FPM.add(createVerifierPass()); // Verify that input is correct
|
|
|
|
MPM.add(createDebugInfoVerifierPass()); // Verify that debug info is correct
|
2011-12-07 17:14:20 +00:00
|
|
|
|
2011-05-22 00:21:33 +00:00
|
|
|
PassManagerBuilder Builder;
|
|
|
|
Builder.OptLevel = OptLevel;
|
2012-05-16 08:32:49 +00:00
|
|
|
Builder.SizeLevel = SizeLevel;
|
2009-06-03 18:22:15 +00:00
|
|
|
|
2010-01-18 22:38:31 +00:00
|
|
|
if (DisableInline) {
|
|
|
|
// No inlining pass
|
2011-06-06 22:13:27 +00:00
|
|
|
} else if (OptLevel > 1) {
|
2014-03-12 16:12:36 +00:00
|
|
|
Builder.Inliner = createFunctionInliningPass(OptLevel, SizeLevel);
|
2010-01-18 22:38:31 +00:00
|
|
|
} else {
|
2011-05-22 00:21:33 +00:00
|
|
|
Builder.Inliner = createAlwaysInlinerPass();
|
2010-01-18 22:38:31 +00:00
|
|
|
}
|
2011-05-22 00:21:33 +00:00
|
|
|
Builder.DisableUnitAtATime = !UnitAtATime;
|
2013-08-28 18:33:10 +00:00
|
|
|
Builder.DisableUnrollLoops = (DisableLoopUnrolling.getNumOccurrences() > 0) ?
|
|
|
|
DisableLoopUnrolling : OptLevel == 0;
|
2013-10-09 08:55:27 +00:00
|
|
|
|
2013-12-05 21:20:02 +00:00
|
|
|
// This is final, unless there is a #pragma vectorize enable
|
|
|
|
if (DisableLoopVectorization)
|
|
|
|
Builder.LoopVectorize = false;
|
|
|
|
// If option wasn't forced via cmd line (-vectorize-loops, -loop-vectorize)
|
|
|
|
else if (!Builder.LoopVectorize)
|
|
|
|
Builder.LoopVectorize = OptLevel > 1 && SizeLevel < 2;
|
|
|
|
|
|
|
|
// When #pragma vectorize is on for SLP, do the same as above
|
2013-12-03 16:33:06 +00:00
|
|
|
Builder.SLPVectorize =
|
|
|
|
DisableSLPVectorization ? false : OptLevel > 1 && SizeLevel < 2;
|
2013-08-28 18:33:10 +00:00
|
|
|
|
2011-05-22 00:21:33 +00:00
|
|
|
Builder.populateFunctionPassManager(FPM);
|
|
|
|
Builder.populateModulePassManager(MPM);
|
2008-09-16 22:25:14 +00:00
|
|
|
}
|
|
|
|
|
2011-05-22 00:21:33 +00:00
|
|
|
static void AddStandardCompilePasses(PassManagerBase &PM) {
|
2007-02-02 14:46:29 +00:00
|
|
|
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));
|
|
|
|
|
2014-04-15 16:27:38 +00:00
|
|
|
// Verify debug info only after it's (possibly) stripped.
|
|
|
|
PM.add(createDebugInfoVerifierPass());
|
|
|
|
|
2007-02-02 14:46:29 +00:00
|
|
|
if (DisableOptimizations) return;
|
|
|
|
|
2009-06-03 18:22:15 +00:00
|
|
|
// -std-compile-opts adds the same module passes as -O3.
|
2011-05-22 00:21:33 +00:00
|
|
|
PassManagerBuilder Builder;
|
|
|
|
if (!DisableInline)
|
|
|
|
Builder.Inliner = createFunctionInliningPass();
|
|
|
|
Builder.OptLevel = 3;
|
|
|
|
Builder.populateModulePassManager(PM);
|
2007-02-02 14:46:29 +00:00
|
|
|
}
|
|
|
|
|
2011-05-22 00:21:33 +00:00
|
|
|
static void AddStandardLinkPasses(PassManagerBase &PM) {
|
|
|
|
PassManagerBuilder Builder;
|
2014-08-21 20:03:44 +00:00
|
|
|
Builder.VerifyInput = true;
|
|
|
|
Builder.StripDebug = StripDebug;
|
|
|
|
if (DisableOptimizations)
|
|
|
|
Builder.OptLevel = 0;
|
|
|
|
|
2014-08-21 13:35:30 +00:00
|
|
|
if (!DisableInline)
|
|
|
|
Builder.Inliner = createFunctionInliningPass();
|
|
|
|
Builder.populateLTOPassManager(PM);
|
2009-07-17 18:09:39 +00:00
|
|
|
}
|
|
|
|
|
2012-10-18 23:22:48 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// CodeGen-related helper functions.
|
|
|
|
//
|
|
|
|
|
|
|
|
CodeGenOpt::Level GetCodeGenOptLevel() {
|
|
|
|
if (OptLevelO1)
|
|
|
|
return CodeGenOpt::Less;
|
|
|
|
if (OptLevelO2)
|
|
|
|
return CodeGenOpt::Default;
|
|
|
|
if (OptLevelO3)
|
|
|
|
return CodeGenOpt::Aggressive;
|
|
|
|
return CodeGenOpt::None;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Returns the TargetMachine instance or zero if no triple is provided.
|
2013-01-01 08:00:32 +00:00
|
|
|
static TargetMachine* GetTargetMachine(Triple TheTriple) {
|
2012-10-18 23:22:48 +00:00
|
|
|
std::string Error;
|
|
|
|
const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
|
|
|
|
Error);
|
2013-01-01 08:00:32 +00:00
|
|
|
// Some modules don't specify a triple, and this is okay.
|
2013-04-15 07:31:37 +00:00
|
|
|
if (!TheTarget) {
|
2014-04-25 04:24:47 +00:00
|
|
|
return nullptr;
|
2013-04-15 07:31:37 +00:00
|
|
|
}
|
2012-10-18 23:22:48 +00:00
|
|
|
|
|
|
|
// Package up features to be passed to target/subtarget
|
|
|
|
std::string FeaturesStr;
|
|
|
|
if (MAttrs.size()) {
|
|
|
|
SubtargetFeatures Features;
|
|
|
|
for (unsigned i = 0; i != MAttrs.size(); ++i)
|
|
|
|
Features.AddFeature(MAttrs[i]);
|
|
|
|
FeaturesStr = Features.getString();
|
|
|
|
}
|
|
|
|
|
|
|
|
return TheTarget->createTargetMachine(TheTriple.getTriple(),
|
2014-02-19 17:09:35 +00:00
|
|
|
MCPU, FeaturesStr,
|
|
|
|
InitTargetOptionsFromCodeGenFlags(),
|
2012-10-18 23:22:48 +00:00
|
|
|
RelocModel, CMModel,
|
|
|
|
GetCodeGenOptLevel());
|
|
|
|
}
|
2001-06-06 20:29:01 +00:00
|
|
|
|
2014-03-14 04:04:14 +00:00
|
|
|
#ifdef LINK_POLLY_INTO_TOOLS
|
|
|
|
namespace polly {
|
|
|
|
void initializePollyPasses(llvm::PassRegistry &Registry);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2002-07-23 18:12:22 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// main for opt
|
|
|
|
//
|
2001-07-23 02:35:57 +00:00
|
|
|
int main(int argc, char **argv) {
|
2009-12-09 00:41:28 +00:00
|
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
|
|
llvm::PrettyStackTraceProgram X(argc, argv);
|
2010-09-01 14:20:41 +00:00
|
|
|
|
2010-01-05 01:30:32 +00:00
|
|
|
// Enable debug stream buffering.
|
|
|
|
EnableDebugBuffering = true;
|
|
|
|
|
2009-12-09 00:41:28 +00:00
|
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
2009-07-15 22:16:10 +00:00
|
|
|
LLVMContext &Context = getGlobalContext();
|
2011-04-05 18:41:31 +00:00
|
|
|
|
2012-10-24 17:23:50 +00:00
|
|
|
InitializeAllTargets();
|
|
|
|
InitializeAllTargetMCs();
|
2014-06-13 16:12:08 +00:00
|
|
|
InitializeAllAsmPrinters();
|
2012-10-24 17:23:50 +00:00
|
|
|
|
2010-10-19 17:21:58 +00:00
|
|
|
// Initialize passes
|
|
|
|
PassRegistry &Registry = *PassRegistry::getPassRegistry();
|
|
|
|
initializeCore(Registry);
|
2013-05-08 20:44:14 +00:00
|
|
|
initializeDebugIRPass(Registry);
|
2010-10-19 17:21:58 +00:00
|
|
|
initializeScalarOpts(Registry);
|
2013-01-28 01:35:51 +00:00
|
|
|
initializeObjCARCOpts(Registry);
|
2012-02-01 03:51:43 +00:00
|
|
|
initializeVectorization(Registry);
|
2010-10-19 17:21:58 +00:00
|
|
|
initializeIPO(Registry);
|
|
|
|
initializeAnalysis(Registry);
|
|
|
|
initializeIPA(Registry);
|
|
|
|
initializeTransformUtils(Registry);
|
|
|
|
initializeInstCombine(Registry);
|
|
|
|
initializeInstrumentation(Registry);
|
|
|
|
initializeTarget(Registry);
|
2014-02-22 00:07:45 +00:00
|
|
|
// For codegen passes, only passes that do IR to IR transformation are
|
2014-04-17 18:22:47 +00:00
|
|
|
// supported.
|
2014-02-22 00:07:45 +00:00
|
|
|
initializeCodeGenPreparePass(Registry);
|
2014-08-21 21:50:01 +00:00
|
|
|
initializeAtomicExpandPass(Registry);
|
2011-04-05 18:41:31 +00:00
|
|
|
|
2014-03-14 04:04:14 +00:00
|
|
|
#ifdef LINK_POLLY_INTO_TOOLS
|
|
|
|
polly::initializePollyPasses(Registry);
|
|
|
|
#endif
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
cl::ParseCommandLineOptions(argc, argv,
|
|
|
|
"llvm .bc -> .bc modular optimizer and analysis printer\n");
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2010-12-02 20:35:16 +00:00
|
|
|
if (AnalyzeOnly && NoOutput) {
|
|
|
|
errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
SMDiagnostic Err;
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// Load the input module...
|
2014-08-26 17:29:46 +00:00
|
|
|
std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);
|
2009-08-21 23:29:40 +00:00
|
|
|
|
2014-04-25 04:24:47 +00:00
|
|
|
if (!M.get()) {
|
2011-10-16 04:47:35 +00:00
|
|
|
Err.print(argv[0], errs());
|
2009-10-22 00:46:41 +00:00
|
|
|
return 1;
|
|
|
|
}
|
2002-01-20 22:54:45 +00:00
|
|
|
|
2012-04-17 23:05:48 +00:00
|
|
|
// If we are supposed to override the target triple, do so now.
|
2013-04-15 07:31:37 +00:00
|
|
|
if (!TargetTriple.empty())
|
2012-04-17 23:05:48 +00:00
|
|
|
M->setTargetTriple(Triple::normalize(TargetTriple));
|
2013-04-14 23:35:36 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// Figure out what stream we are supposed to write to...
|
2014-03-06 05:51:42 +00:00
|
|
|
std::unique_ptr<tool_output_file> Out;
|
2010-08-18 17:42:59 +00:00
|
|
|
if (NoOutput) {
|
2010-08-18 17:40:10 +00:00
|
|
|
if (!OutputFilename.empty())
|
|
|
|
errs() << "WARNING: The -o (output filename) option is ignored when\n"
|
2010-08-18 17:42:59 +00:00
|
|
|
"the --disable-output option is used.\n";
|
2010-08-18 17:40:10 +00:00
|
|
|
} else {
|
|
|
|
// Default to standard output.
|
|
|
|
if (OutputFilename.empty())
|
|
|
|
OutputFilename = "-";
|
|
|
|
|
2014-08-25 18:16:47 +00:00
|
|
|
std::error_code EC;
|
|
|
|
Out.reset(new tool_output_file(OutputFilename, EC, sys::fs::F_None));
|
|
|
|
if (EC) {
|
|
|
|
errs() << EC.message() << '\n';
|
2010-08-18 17:40:10 +00:00
|
|
|
return 1;
|
2001-06-06 20:29:01 +00:00
|
|
|
}
|
2009-10-22 00:46:41 +00:00
|
|
|
}
|
2002-04-18 19:55:25 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// 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.
|
2010-01-17 17:47:24 +00:00
|
|
|
if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
|
2010-09-01 14:20:41 +00:00
|
|
|
if (CheckBitcodeOutputToConsole(Out->os(), !Quiet))
|
2009-10-22 00:46:41 +00:00
|
|
|
NoOutput = true;
|
|
|
|
|
2014-01-13 03:08:40 +00:00
|
|
|
if (PassPipeline.getNumOccurrences() > 0) {
|
|
|
|
OutputKind OK = OK_NoOutput;
|
|
|
|
if (!NoOutput)
|
|
|
|
OK = OutputAssembly ? OK_OutputAssembly : OK_OutputBitcode;
|
|
|
|
|
2014-01-20 11:34:08 +00:00
|
|
|
VerifierKind VK = VK_VerifyInAndOut;
|
|
|
|
if (NoVerify)
|
|
|
|
VK = VK_NoVerifier;
|
|
|
|
else if (VerifyEach)
|
|
|
|
VK = VK_VerifyEachPass;
|
|
|
|
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
// The user has asked to use the new pass manager and provided a pipeline
|
|
|
|
// string. Hand off the rest of the functionality to the new code for that
|
|
|
|
// layer.
|
|
|
|
return runPassPipeline(argv[0], Context, *M.get(), Out.get(), PassPipeline,
|
2014-01-20 11:34:08 +00:00
|
|
|
OK, VK)
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
? 0
|
|
|
|
: 1;
|
2014-01-13 03:08:40 +00:00
|
|
|
}
|
[PM] Add (very skeletal) support to opt for running the new pass
manager. I cannot emphasize enough that this is a WIP. =] I expect it
to change a great deal as things stabilize, but I think its really
important to get *some* functionality here so that the infrastructure
can be tested more traditionally from the commandline.
The current design is looking something like this:
./bin/opt -passes='module(pass_a,pass_b,function(pass_c,pass_d))'
So rather than custom-parsed flags, there is a single flag with a string
argument that is parsed into the pass pipeline structure. This makes it
really easy to have nice structural properties that are very explicit.
There is one obvious and important shortcut. You can start off the
pipeline with a pass, and the minimal context of pass managers will be
built around the entire specified pipeline. This makes the common case
for tests super easy:
./bin/opt -passes=instcombine,sroa,gvn
But this won't introduce any of the complexity of the fully inferred old
system -- we only ever do this for the *entire* argument, and we only
look at the first pass. If the other passes don't fit in the pass
manager selected it is a hard error.
The other interesting aspect here is that I'm not relying on any
registration facilities. Such facilities may be unavoidable for
supporting plugins, but I have alternative ideas for plugins that I'd
like to try first. My plan is essentially to build everything without
registration until we hit an absolute requirement.
Instead of registration of pass names, there will be a library dedicated
to parsing pass names and the pass pipeline strings described above.
Currently, this is directly embedded into opt for simplicity as it is
very early, but I plan to eventually pull this into a library that opt,
bugpoint, and even Clang can depend on. It should end up as a good home
for things like the existing PassManagerBuilder as well.
There are a bunch of FIXMEs in the code for the parts of this that are
just stubbed out to make the patch more incremental. A quick list of
what's coming up directly after this:
- Support for function passes and building the structured nesting.
- Support for printing the pass structure, and FileCheck tests of all of
this code.
- The .def-file based pass name parsing.
- IR priting passes and the corresponding tests.
Some obvious things that I'm not going to do right now, but am
definitely planning on as the pass manager work gets a bit further:
- Pull the parsing into library, including the builders.
- Thread the rest of the target stuff into the new pass manager.
- Wire support for the new pass manager up to llc.
- Plugin support.
Some things that I'd like to have, but are significantly lower on my
priority list. I'll get to these eventually, but they may also be places
where others want to contribute:
- Adding nice error reporting for broken pass pipeline descriptions.
- Typo-correction for pass names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 08:16:35 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// Create a PassManager to hold and optimize the collection of passes we are
|
2011-02-18 22:13:01 +00:00
|
|
|
// about to build.
|
2009-10-22 00:46:41 +00:00
|
|
|
//
|
|
|
|
PassManager Passes;
|
|
|
|
|
2011-02-18 22:13:01 +00:00
|
|
|
// Add an appropriate TargetLibraryInfo pass for the module's triple.
|
2011-02-18 22:34:03 +00:00
|
|
|
TargetLibraryInfo *TLI = new TargetLibraryInfo(Triple(M->getTargetTriple()));
|
2011-04-05 18:41:31 +00:00
|
|
|
|
2011-02-18 22:34:03 +00:00
|
|
|
// The -disable-simplify-libcalls flag actually disables all builtin optzns.
|
|
|
|
if (DisableSimplifyLibCalls)
|
|
|
|
TLI->disableAllFunctions();
|
|
|
|
Passes.add(TLI);
|
2011-04-05 18:41:31 +00:00
|
|
|
|
2013-04-15 07:31:37 +00:00
|
|
|
// Add an appropriate DataLayout instance for this module.
|
2014-02-25 20:01:08 +00:00
|
|
|
const DataLayout *DL = M.get()->getDataLayout();
|
2014-02-25 23:25:17 +00:00
|
|
|
if (!DL && !DefaultDataLayout.empty()) {
|
|
|
|
M->setDataLayout(DefaultDataLayout);
|
|
|
|
DL = M.get()->getDataLayout();
|
|
|
|
}
|
2013-04-15 07:31:37 +00:00
|
|
|
|
2014-02-21 02:01:42 +00:00
|
|
|
if (DL)
|
2014-09-10 21:27:43 +00:00
|
|
|
Passes.add(new DataLayoutPass());
|
2009-10-22 00:46:41 +00:00
|
|
|
|
2013-01-01 08:00:32 +00:00
|
|
|
Triple ModuleTriple(M->getTargetTriple());
|
2014-04-25 04:24:47 +00:00
|
|
|
TargetMachine *Machine = nullptr;
|
2013-01-01 08:00:32 +00:00
|
|
|
if (ModuleTriple.getArch())
|
|
|
|
Machine = GetTargetMachine(Triple(ModuleTriple));
|
2014-03-06 05:51:42 +00:00
|
|
|
std::unique_ptr<TargetMachine> TM(Machine);
|
2013-01-01 08:00:32 +00:00
|
|
|
|
Switch TargetTransformInfo from an immutable analysis pass that requires
a TargetMachine to construct (and thus isn't always available), to an
analysis group that supports layered implementations much like
AliasAnalysis does. This is a pretty massive change, with a few parts
that I was unable to easily separate (sorry), so I'll walk through it.
The first step of this conversion was to make TargetTransformInfo an
analysis group, and to sink the nonce implementations in
ScalarTargetTransformInfo and VectorTargetTranformInfo into
a NoTargetTransformInfo pass. This allows other passes to add a hard
requirement on TTI, and assume they will always get at least on
implementation.
The TargetTransformInfo analysis group leverages the delegation chaining
trick that AliasAnalysis uses, where the base class for the analysis
group delegates to the previous analysis *pass*, allowing all but tho
NoFoo analysis passes to only implement the parts of the interfaces they
support. It also introduces a new trick where each pass in the group
retains a pointer to the top-most pass that has been initialized. This
allows passes to implement one API in terms of another API and benefit
when some other pass above them in the stack has more precise results
for the second API.
The second step of this conversion is to create a pass that implements
the TargetTransformInfo analysis using the target-independent
abstractions in the code generator. This replaces the
ScalarTargetTransformImpl and VectorTargetTransformImpl classes in
lib/Target with a single pass in lib/CodeGen called
BasicTargetTransformInfo. This class actually provides most of the TTI
functionality, basing it upon the TargetLowering abstraction and other
information in the target independent code generator.
The third step of the conversion adds support to all TargetMachines to
register custom analysis passes. This allows building those passes with
access to TargetLowering or other target-specific classes, and it also
allows each target to customize the set of analysis passes desired in
the pass manager. The baseline LLVMTargetMachine implements this
interface to add the BasicTTI pass to the pass manager, and all of the
tools that want to support target-aware TTI passes call this routine on
whatever target machine they end up with to add the appropriate passes.
The fourth step of the conversion created target-specific TTI analysis
passes for the X86 and ARM backends. These passes contain the custom
logic that was previously in their extensions of the
ScalarTargetTransformInfo and VectorTargetTransformInfo interfaces.
I separated them into their own file, as now all of the interface bits
are private and they just expose a function to create the pass itself.
Then I extended these target machines to set up a custom set of analysis
passes, first adding BasicTTI as a fallback, and then adding their
customized TTI implementations.
The fourth step required logic that was shared between the target
independent layer and the specific targets to move to a different
interface, as they no longer derive from each other. As a consequence,
a helper functions were added to TargetLowering representing the common
logic needed both in the target implementation and the codegen
implementation of the TTI pass. While technically this is the only
change that could have been committed separately, it would have been
a nightmare to extract.
The final step of the conversion was just to delete all the old
boilerplate. This got rid of the ScalarTargetTransformInfo and
VectorTargetTransformInfo classes, all of the support in all of the
targets for producing instances of them, and all of the support in the
tools for manually constructing a pass based around them.
Now that TTI is a relatively normal analysis group, two things become
straightforward. First, we can sink it into lib/Analysis which is a more
natural layer for it to live. Second, clients of this interface can
depend on it *always* being available which will simplify their code and
behavior. These (and other) simplifications will follow in subsequent
commits, this one is clearly big enough.
Finally, I'm very aware that much of the comments and documentation
needs to be updated. As soon as I had this working, and plausibly well
commented, I wanted to get it committed and in front of the build bots.
I'll be doing a few passes over documentation later if it sticks.
Commits to update DragonEgg and Clang will be made presently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07 01:37:14 +00:00
|
|
|
// Add internal analysis passes from the target machine.
|
|
|
|
if (TM.get())
|
|
|
|
TM->addAnalysisPasses(Passes);
|
2012-10-18 23:22:48 +00:00
|
|
|
|
2014-03-06 05:51:42 +00:00
|
|
|
std::unique_ptr<FunctionPassManager> FPasses;
|
2012-05-16 08:32:49 +00:00
|
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
|
2011-05-22 00:21:33 +00:00
|
|
|
FPasses.reset(new FunctionPassManager(M.get()));
|
2014-02-21 02:01:42 +00:00
|
|
|
if (DL)
|
2014-09-10 21:27:43 +00:00
|
|
|
FPasses->add(new DataLayoutPass());
|
2013-07-27 00:01:07 +00:00
|
|
|
if (TM.get())
|
|
|
|
TM->addAnalysisPasses(*FPasses);
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
}
|
2009-08-21 23:29:40 +00:00
|
|
|
|
2010-12-07 00:33:43 +00:00
|
|
|
if (PrintBreakpoints) {
|
|
|
|
// Default to standard output.
|
|
|
|
if (!Out) {
|
|
|
|
if (OutputFilename.empty())
|
|
|
|
OutputFilename = "-";
|
2011-04-05 18:41:31 +00:00
|
|
|
|
2014-08-25 18:16:47 +00:00
|
|
|
std::error_code EC;
|
|
|
|
Out.reset(new tool_output_file(OutputFilename, EC, sys::fs::F_None));
|
|
|
|
if (EC) {
|
|
|
|
errs() << EC.message() << '\n';
|
2010-12-07 00:33:43 +00:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
2014-02-12 16:48:02 +00:00
|
|
|
Passes.add(createBreakpointPrinter(Out->os()));
|
2010-12-07 00:33:43 +00:00
|
|
|
NoOutput = true;
|
|
|
|
}
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// 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)) {
|
2008-07-13 19:35:21 +00:00
|
|
|
AddStandardCompilePasses(Passes);
|
|
|
|
StandardCompileOpts = false;
|
2009-08-21 23:29:40 +00:00
|
|
|
}
|
2002-01-31 00:47:12 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (StandardLinkOpts &&
|
|
|
|
StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
|
2009-07-17 18:09:39 +00:00
|
|
|
AddStandardLinkPasses(Passes);
|
|
|
|
StandardLinkOpts = false;
|
2009-08-21 23:29:40 +00:00
|
|
|
}
|
2009-07-17 18:09:39 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 1, 0);
|
2009-10-22 00:46:41 +00:00
|
|
|
OptLevelO1 = false;
|
2009-07-17 18:09:39 +00:00
|
|
|
}
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 0);
|
2009-10-22 00:46:41 +00:00
|
|
|
OptLevelO2 = false;
|
2009-07-17 18:09:39 +00:00
|
|
|
}
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2012-05-16 08:32:49 +00:00
|
|
|
if (OptLevelOs && OptLevelOs.getPosition() < PassList.getPosition(i)) {
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 1);
|
|
|
|
OptLevelOs = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (OptLevelOz && OptLevelOz.getPosition() < PassList.getPosition(i)) {
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 2);
|
|
|
|
OptLevelOz = false;
|
|
|
|
}
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 3, 0);
|
2009-10-22 00:46:41 +00:00
|
|
|
OptLevelO3 = false;
|
2009-07-17 18:09:39 +00:00
|
|
|
}
|
2008-09-16 22:25:14 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
const PassInfo *PassInf = PassList[i];
|
2014-04-25 04:24:47 +00:00
|
|
|
Pass *P = nullptr;
|
2014-01-16 21:44:34 +00:00
|
|
|
if (PassInf->getTargetMachineCtor())
|
|
|
|
P = PassInf->getTargetMachineCtor()(TM.get());
|
|
|
|
else if (PassInf->getNormalCtor())
|
2009-10-22 00:46:41 +00:00
|
|
|
P = PassInf->getNormalCtor()();
|
|
|
|
else
|
|
|
|
errs() << argv[0] << ": cannot create pass: "
|
|
|
|
<< PassInf->getPassName() << "\n";
|
|
|
|
if (P) {
|
2010-02-18 12:57:05 +00:00
|
|
|
PassKind Kind = P->getPassKind();
|
2009-10-22 00:46:41 +00:00
|
|
|
addPass(Passes, P);
|
|
|
|
|
|
|
|
if (AnalyzeOnly) {
|
2010-02-18 12:57:05 +00:00
|
|
|
switch (Kind) {
|
2010-01-22 06:03:06 +00:00
|
|
|
case PT_BasicBlock:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createBasicBlockPassPrinter(PassInf, Out->os(), Quiet));
|
2010-01-22 06:03:06 +00:00
|
|
|
break;
|
2010-10-20 01:54:44 +00:00
|
|
|
case PT_Region:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createRegionPassPrinter(PassInf, Out->os(), Quiet));
|
2010-10-20 01:54:44 +00:00
|
|
|
break;
|
2010-01-22 06:03:06 +00:00
|
|
|
case PT_Loop:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createLoopPassPrinter(PassInf, Out->os(), Quiet));
|
2010-01-22 06:03:06 +00:00
|
|
|
break;
|
|
|
|
case PT_Function:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createFunctionPassPrinter(PassInf, Out->os(), Quiet));
|
2010-01-22 06:03:06 +00:00
|
|
|
break;
|
|
|
|
case PT_CallGraphSCC:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createCallGraphPassPrinter(PassInf, Out->os(), Quiet));
|
2010-01-22 06:03:06 +00:00
|
|
|
break;
|
|
|
|
default:
|
2014-02-10 23:34:23 +00:00
|
|
|
Passes.add(createModulePassPrinter(PassInf, Out->os(), Quiet));
|
2010-01-22 06:03:06 +00:00
|
|
|
break;
|
|
|
|
}
|
2009-10-22 00:46:41 +00:00
|
|
|
}
|
2008-09-16 22:25:14 +00:00
|
|
|
}
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (PrintEachXForm)
|
2014-01-12 11:30:46 +00:00
|
|
|
Passes.add(createPrintModulePass(errs()));
|
2009-10-22 00:46:41 +00:00
|
|
|
}
|
2002-02-20 17:56:53 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// If -std-compile-opts was specified at the end of the pass list, add them.
|
|
|
|
if (StandardCompileOpts) {
|
|
|
|
AddStandardCompilePasses(Passes);
|
|
|
|
StandardCompileOpts = false;
|
|
|
|
}
|
2002-01-31 00:47:12 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (StandardLinkOpts) {
|
|
|
|
AddStandardLinkPasses(Passes);
|
|
|
|
StandardLinkOpts = false;
|
|
|
|
}
|
2001-06-06 20:29:01 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (OptLevelO1)
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 1, 0);
|
2009-10-22 00:46:41 +00:00
|
|
|
|
|
|
|
if (OptLevelO2)
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 0);
|
|
|
|
|
|
|
|
if (OptLevelOs)
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 1);
|
|
|
|
|
|
|
|
if (OptLevelOz)
|
|
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 2);
|
2006-08-18 06:34:30 +00:00
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
if (OptLevelO3)
|
2012-05-16 08:32:49 +00:00
|
|
|
AddOptimizationPasses(Passes, *FPasses, 3, 0);
|
2009-10-22 00:46:41 +00:00
|
|
|
|
2012-05-16 08:32:49 +00:00
|
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
|
2011-05-22 06:44:19 +00:00
|
|
|
FPasses->doInitialization();
|
2011-05-22 00:21:33 +00:00
|
|
|
for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
|
|
|
|
FPasses->run(*F);
|
2011-05-22 06:44:19 +00:00
|
|
|
FPasses->doFinalization();
|
|
|
|
}
|
2009-10-22 00:46:41 +00:00
|
|
|
|
|
|
|
// Check that the module is well formed on completion of optimization
|
2014-04-15 16:27:38 +00:00
|
|
|
if (!NoVerify && !VerifyEach) {
|
2009-10-22 00:46:41 +00:00
|
|
|
Passes.add(createVerifierPass());
|
2014-04-15 16:27:38 +00:00
|
|
|
Passes.add(createDebugInfoVerifierPass());
|
|
|
|
}
|
2009-10-22 00:46:41 +00:00
|
|
|
|
2010-08-18 17:42:59 +00:00
|
|
|
// Write bitcode or assembly to the output as the last step...
|
2009-10-22 00:46:41 +00:00
|
|
|
if (!NoOutput && !AnalyzeOnly) {
|
|
|
|
if (OutputAssembly)
|
2014-01-12 11:30:46 +00:00
|
|
|
Passes.add(createPrintModulePass(Out->os()));
|
2009-10-22 00:46:41 +00:00
|
|
|
else
|
2010-09-01 14:20:41 +00:00
|
|
|
Passes.add(createBitcodeWriterPass(Out->os()));
|
2009-10-22 00:46:41 +00:00
|
|
|
}
|
|
|
|
|
2011-04-05 18:54:36 +00:00
|
|
|
// Before executing passes, print the final values of the LLVM options.
|
|
|
|
cl::PrintOptionValues();
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
// Now that we have all of the passes ready, run them.
|
|
|
|
Passes.run(*M.get());
|
|
|
|
|
2010-08-20 01:07:01 +00:00
|
|
|
// Declare success.
|
2010-12-07 00:33:43 +00:00
|
|
|
if (!NoOutput || PrintBreakpoints)
|
2010-08-20 01:07:01 +00:00
|
|
|
Out->keep();
|
|
|
|
|
2009-10-22 00:46:41 +00:00
|
|
|
return 0;
|
2001-06-06 20:29:01 +00:00
|
|
|
}
|