//
//===----------------------------------------------------------------------===//
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/PassManager.h"
#include "llvm/CallGraphSCCPass.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/PassNameParser.h"
#include "llvm/System/Signals.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/IRReader.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PluginLoader.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/StandardPasses.h"
#include "llvm/Support/SystemUtils.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/LinkAllPasses.h"
#include "llvm/LinkAllVMCore.h"
-#include <iostream>
-#include <fstream>
#include <memory>
#include <algorithm>
using namespace llvm;
// Other command line options...
//
static cl::opt<std::string>
-InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
+InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
cl::init("-"), cl::value_desc("filename"));
static cl::opt<std::string>
cl::value_desc("filename"), cl::init("-"));
static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
static cl::opt<bool>
PrintEachXForm("p", cl::desc("Print module after each transformation"));
NoOutput("disable-output",
cl::desc("Do not write result bitcode file"), cl::Hidden);
+static cl::opt<bool>
+OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
+
static cl::opt<bool>
NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
static cl::opt<bool>
DisableInline("disable-inlining", cl::desc("Do not run the inliner pass"));
-static cl::opt<bool>
-DisableOptimizations("disable-opt",
+static cl::opt<bool>
+DisableOptimizations("disable-opt",
cl::desc("Do not run any optimization passes"));
static cl::opt<bool>
-StandardCompileOpts("std-compile-opts",
+DisableInternalize("disable-internalize",
+ cl::desc("Do not mark all symbols as internal"));
+
+static cl::opt<bool>
+StandardCompileOpts("std-compile-opts",
cl::desc("Include the standard compile time optimizations"));
+static cl::opt<bool>
+StandardLinkOpts("std-link-opts",
+ cl::desc("Include the standard link time optimizations"));
+
static cl::opt<bool>
OptLevelO1("O1",
cl::desc("Optimization level 1. Similar to llvm-gcc -O1"));
static cl::opt<bool>
UnitAtATime("funit-at-a-time",
- cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"));
+ cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
+ cl::init(true));
static cl::opt<bool>
DisableSimplifyLibCalls("disable-simplify-libcalls",
static cl::opt<bool>
AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
+static cl::opt<std::string>
+DefaultDataLayout("default-data-layout",
+ cl::desc("data layout string to use if not specified by module"),
+ cl::value_desc("layout-string"), cl::init(""));
+
// ---------- Define Printers for module and function passes ------------
namespace {
struct CallGraphSCCPassPrinter : public CallGraphSCCPass {
static char ID;
const PassInfo *PassToPrint;
- CallGraphSCCPassPrinter(const PassInfo *PI) :
- CallGraphSCCPass((intptr_t)&ID), PassToPrint(PI) {}
+ CallGraphSCCPassPrinter(const PassInfo *PI) :
+ CallGraphSCCPass(&ID), PassToPrint(PI) {}
- virtual bool runOnSCC(const std::vector<CallGraphNode *>&SCC) {
+ virtual bool runOnSCC(std::vector<CallGraphNode *>&SCC) {
if (!Quiet) {
- cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
for (unsigned i = 0, e = SCC.size(); i != e; ++i) {
Function *F = SCC[i]->getFunction();
- if (F)
- getAnalysisID<Pass>(PassToPrint).print(cout, F->getParent());
+ if (F) {
+ getAnalysisID<Pass>(PassToPrint).print(outs(), F->getParent());
+ }
}
}
// Get and print pass...
return false;
}
-
+
virtual const char *getPassName() const { return "'Pass' Printer"; }
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
struct ModulePassPrinter : public ModulePass {
static char ID;
const PassInfo *PassToPrint;
- ModulePassPrinter(const PassInfo *PI) : ModulePass((intptr_t)&ID),
+ ModulePassPrinter(const PassInfo *PI) : ModulePass(&ID),
PassToPrint(PI) {}
virtual bool runOnModule(Module &M) {
if (!Quiet) {
- cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- getAnalysisID<Pass>(PassToPrint).print(cout, &M);
+ outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ getAnalysisID<Pass>(PassToPrint).print(outs(), &M);
}
// Get and print pass...
struct FunctionPassPrinter : public FunctionPass {
const PassInfo *PassToPrint;
static char ID;
- FunctionPassPrinter(const PassInfo *PI) : FunctionPass((intptr_t)&ID),
+ FunctionPassPrinter(const PassInfo *PI) : FunctionPass(&ID),
PassToPrint(PI) {}
virtual bool runOnFunction(Function &F) {
- if (!Quiet) {
- cout << "Printing analysis '" << PassToPrint->getPassName()
- << "' for function '" << F.getName() << "':\n";
+ if (!Quiet) {
+ outs() << "Printing analysis '" << PassToPrint->getPassName()
+ << "' for function '" << F.getName() << "':\n";
}
// Get and print pass...
- getAnalysisID<Pass>(PassToPrint).print(cout, F.getParent());
+ getAnalysisID<Pass>(PassToPrint).print(outs(), F.getParent());
return false;
}
struct LoopPassPrinter : public LoopPass {
static char ID;
const PassInfo *PassToPrint;
- LoopPassPrinter(const PassInfo *PI) :
- LoopPass((intptr_t)&ID), PassToPrint(PI) {}
+ LoopPassPrinter(const PassInfo *PI) :
+ LoopPass(&ID), PassToPrint(PI) {}
virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
if (!Quiet) {
- cout << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
- getAnalysisID<Pass>(PassToPrint).print(cout,
+ outs() << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
+ getAnalysisID<Pass>(PassToPrint).print(outs(),
L->getHeader()->getParent()->getParent());
}
// Get and print pass...
return false;
}
-
+
virtual const char *getPassName() const { return "'Pass' Printer"; }
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
struct BasicBlockPassPrinter : public BasicBlockPass {
const PassInfo *PassToPrint;
static char ID;
- BasicBlockPassPrinter(const PassInfo *PI)
- : BasicBlockPass((intptr_t)&ID), PassToPrint(PI) {}
+ BasicBlockPassPrinter(const PassInfo *PI)
+ : BasicBlockPass(&ID), PassToPrint(PI) {}
virtual bool runOnBasicBlock(BasicBlock &BB) {
if (!Quiet) {
- cout << "Printing Analysis info for BasicBlock '" << BB.getName()
- << "': Pass " << PassToPrint->getPassName() << ":\n";
+ outs() << "Printing Analysis info for BasicBlock '" << BB.getName()
+ << "': Pass " << PassToPrint->getPassName() << ":\n";
}
// Get and print pass...
- getAnalysisID<Pass>(PassToPrint).print(cout, BB.getParent()->getParent());
+ getAnalysisID<Pass>(PassToPrint).print(outs(), BB.getParent()->getParent());
return false;
}
if (VerifyEach) PM.add(createVerifierPass());
}
-/// AddOptimizationPasses - This routine adds optimization passes
-/// based on selected optimization level, OptLevel. This routine
+/// AddOptimizationPasses - This routine adds optimization passes
+/// based on selected optimization level, OptLevel. This routine
/// duplicates llvm-gcc behaviour.
///
/// OptLevel - Optimization Level
- void AddOptimizationPasses(PassManager &MPM, FunctionPassManager &FPM,
- unsigned OptLevel) {
-
- if (OptLevel == 0)
- return;
-
- FPM.add(createCFGSimplificationPass());
- if (OptLevel == 1)
- FPM.add(createPromoteMemoryToRegisterPass());
- else
- FPM.add(createScalarReplAggregatesPass());
- FPM.add(createInstructionCombiningPass());
-
- if (UnitAtATime)
- MPM.add(createRaiseAllocationsPass()); // call %malloc -> malloc inst
- MPM.add(createCFGSimplificationPass()); // Clean up disgusting code
- MPM.add(createPromoteMemoryToRegisterPass()); // Kill useless allocas
- if (UnitAtATime) {
- MPM.add(createGlobalOptimizerPass()); // OptLevel out global vars
- MPM.add(createGlobalDCEPass()); // Remove unused fns and globs
- MPM.add(createIPConstantPropagationPass()); // IP Constant Propagation
- MPM.add(createDeadArgEliminationPass()); // Dead argument elimination
- }
- MPM.add(createInstructionCombiningPass()); // Clean up after IPCP & DAE
- MPM.add(createCFGSimplificationPass()); // Clean up after IPCP & DAE
- if (UnitAtATime) {
- MPM.add(createPruneEHPass()); // Remove dead EH info
- MPM.add(createAddReadAttrsPass()); // Set readonly/readnone attrs
- }
- if (OptLevel > 1)
- MPM.add(createFunctionInliningPass()); // Inline small functions
- if (OptLevel > 2)
- MPM.add(createArgumentPromotionPass()); // Scalarize uninlined fn args
- if (!DisableSimplifyLibCalls)
- MPM.add(createSimplifyLibCallsPass()); // Library Call Optimizations
- MPM.add(createInstructionCombiningPass()); // Cleanup for scalarrepl.
- MPM.add(createJumpThreadingPass()); // Thread jumps.
- MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
- MPM.add(createScalarReplAggregatesPass()); // Break up aggregate allocas
- MPM.add(createInstructionCombiningPass()); // Combine silly seq's
- MPM.add(createCondPropagationPass()); // Propagate conditionals
- MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
- MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
- MPM.add(createReassociatePass()); // Reassociate expressions
- MPM.add(createLoopRotatePass()); // Rotate Loop
- MPM.add(createLICMPass()); // Hoist loop invariants
- MPM.add(createLoopUnswitchPass());
- MPM.add(createLoopIndexSplitPass()); // Split loop index
- MPM.add(createInstructionCombiningPass());
- MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars
- MPM.add(createLoopDeletionPass()); // Delete dead loops
- if (OptLevel > 1)
- MPM.add(createLoopUnrollPass()); // Unroll small loops
- MPM.add(createInstructionCombiningPass()); // Clean up after the unroller
- MPM.add(createGVNPass()); // Remove redundancies
- MPM.add(createMemCpyOptPass()); // Remove memcpy / form memset
- MPM.add(createSCCPPass()); // Constant prop with SCCP
-
- // Run instcombine after redundancy elimination to exploit opportunities
- // opened up by them.
- MPM.add(createInstructionCombiningPass());
- MPM.add(createCondPropagationPass()); // Propagate conditionals
- MPM.add(createDeadStoreEliminationPass()); // Delete dead stores
- MPM.add(createAggressiveDCEPass()); // Delete dead instructions
- MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
-
- if (UnitAtATime) {
- MPM.add(createStripDeadPrototypesPass()); // Get rid of dead prototypes
- MPM.add(createDeadTypeEliminationPass()); // Eliminate dead types
+void AddOptimizationPasses(PassManager &MPM, FunctionPassManager &FPM,
+ unsigned OptLevel) {
+ createStandardFunctionPasses(&FPM, OptLevel);
+
+ llvm::Pass *InliningPass = 0;
+ if (DisableInline) {
+ // No inlining pass
+ } else if (OptLevel) {
+ unsigned Threshold = 200;
+ if (OptLevel > 2)
+ Threshold = 250;
+ InliningPass = createFunctionInliningPass(Threshold);
+ } else {
+ InliningPass = createAlwaysInlinerPass();
}
-
- if (OptLevel > 1 && UnitAtATime)
- MPM.add(createConstantMergePass()); // Merge dup global constants
-
- return;
+ createStandardModulePasses(&MPM, OptLevel,
+ /*OptimizeSize=*/ false,
+ UnitAtATime,
+ /*UnrollLoops=*/ OptLevel > 1,
+ !DisableSimplifyLibCalls,
+ /*HaveExceptions=*/ true,
+ InliningPass);
}
void AddStandardCompilePasses(PassManager &PM) {
if (DisableOptimizations) return;
- addPass(PM, createRaiseAllocationsPass()); // call %malloc -> malloc inst
- addPass(PM, createCFGSimplificationPass()); // Clean up disgusting code
- addPass(PM, createPromoteMemoryToRegisterPass());// Kill useless allocas
- addPass(PM, createGlobalOptimizerPass()); // Optimize out global vars
- addPass(PM, createGlobalDCEPass()); // Remove unused fns and globs
- addPass(PM, createIPConstantPropagationPass());// IP Constant Propagation
- addPass(PM, createDeadArgEliminationPass()); // Dead argument elimination
- addPass(PM, createInstructionCombiningPass()); // Clean up after IPCP & DAE
- addPass(PM, createCFGSimplificationPass()); // Clean up after IPCP & DAE
-
- addPass(PM, createPruneEHPass()); // Remove dead EH info
- addPass(PM, createAddReadAttrsPass()); // Set readonly/readnone attrs
-
- if (!DisableInline)
- addPass(PM, createFunctionInliningPass()); // Inline small functions
- addPass(PM, createArgumentPromotionPass()); // Scalarize uninlined fn args
-
- addPass(PM, createSimplifyLibCallsPass()); // Library Call Optimizations
- addPass(PM, createInstructionCombiningPass()); // Cleanup for scalarrepl.
- addPass(PM, createJumpThreadingPass()); // Thread jumps.
- addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
- addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
- addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
- addPass(PM, createCondPropagationPass()); // Propagate conditionals
-
- addPass(PM, createTailCallEliminationPass()); // Eliminate tail calls
- addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
- addPass(PM, createReassociatePass()); // Reassociate expressions
- addPass(PM, createLoopRotatePass());
- addPass(PM, createLICMPass()); // Hoist loop invariants
- addPass(PM, createLoopUnswitchPass()); // Unswitch loops.
- addPass(PM, createLoopIndexSplitPass()); // Index split loops.
- // FIXME : Removing instcombine causes nestedloop regression.
- addPass(PM, createInstructionCombiningPass());
- addPass(PM, createIndVarSimplifyPass()); // Canonicalize indvars
- addPass(PM, createLoopDeletionPass()); // Delete dead loops
- addPass(PM, createLoopUnrollPass()); // Unroll small loops
- addPass(PM, createInstructionCombiningPass()); // Clean up after the unroller
- addPass(PM, createGVNPass()); // Remove redundancies
- addPass(PM, createMemCpyOptPass()); // Remove memcpy / form memset
- addPass(PM, createSCCPPass()); // Constant prop with SCCP
-
- // Run instcombine after redundancy elimination to exploit opportunities
- // opened up by them.
- addPass(PM, createInstructionCombiningPass());
- addPass(PM, createCondPropagationPass()); // Propagate conditionals
-
- addPass(PM, createDeadStoreEliminationPass()); // Delete dead stores
- addPass(PM, createAggressiveDCEPass()); // Delete dead instructions
- addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
- addPass(PM, createStripDeadPrototypesPass()); // Get rid of dead prototypes
- addPass(PM, createDeadTypeEliminationPass()); // Eliminate dead types
- addPass(PM, createConstantMergePass()); // Merge dup global constants
+ llvm::Pass *InliningPass = !DisableInline ? createFunctionInliningPass() : 0;
+
+ // -std-compile-opts adds the same module passes as -O3.
+ createStandardModulePasses(&PM, 3,
+ /*OptimizeSize=*/ false,
+ /*UnitAtATime=*/ true,
+ /*UnrollLoops=*/ true,
+ /*SimplifyLibCalls=*/ true,
+ /*HaveExceptions=*/ true,
+ InliningPass);
+}
+
+void AddStandardLinkPasses(PassManager &PM) {
+ 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;
+
+ createStandardLTOPasses(&PM, /*Internalize=*/ !DisableInternalize,
+ /*RunInliner=*/ !DisableInline,
+ /*VerifyEach=*/ VerifyEach);
}
} // anonymous namespace
// main for opt
//
int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- try {
- cl::ParseCommandLineOptions(argc, argv,
- "llvm .bc -> .bc modular optimizer and analysis printer\n");
- sys::PrintStackTraceOnErrorSignal();
-
- // 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;
-
- std::string ErrorMessage;
-
- // Load the input module...
- std::auto_ptr<Module> M;
- if (MemoryBuffer *Buffer
- = MemoryBuffer::getFileOrSTDIN(InputFilename, &ErrorMessage)) {
- M.reset(ParseBitcodeFile(Buffer, &ErrorMessage));
- delete Buffer;
- }
-
- if (M.get() == 0) {
- cerr << argv[0] << ": ";
- if (ErrorMessage.size())
- cerr << ErrorMessage << "\n";
- else
- cerr << "bitcode didn't read correctly.\n";
- return 1;
- }
+ sys::PrintStackTraceOnErrorSignal();
+ llvm::PrettyStackTraceProgram X(argc, argv);
+
+ // Enable debug stream buffering.
+ EnableDebugBuffering = true;
- // Figure out what stream we are supposed to write to...
- // FIXME: cout is not binary!
- std::ostream *Out = &std::cout; // Default to printing to stdout...
- if (OutputFilename != "-") {
- if (!Force && std::ifstream(OutputFilename.c_str())) {
- // If force is not specified, make sure not to overwrite a file!
- cerr << argv[0] << ": error opening '" << OutputFilename
- << "': file exists!\n"
- << "Use -f command line argument to force output\n";
- return 1;
- }
- std::ios::openmode io_mode = std::ios::out | std::ios::trunc |
- std::ios::binary;
- Out = new std::ofstream(OutputFilename.c_str(), io_mode);
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+ LLVMContext &Context = getGlobalContext();
+
+ cl::ParseCommandLineOptions(argc, argv,
+ "llvm .bc -> .bc modular optimizer and analysis printer\n");
- if (!Out->good()) {
- cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
- return 1;
- }
+ // 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;
+
+ SMDiagnostic Err;
+
+ // Load the input module...
+ std::auto_ptr<Module> M;
+ M.reset(ParseIRFile(InputFilename, Err, Context));
+ if (M.get() == 0) {
+ Err.Print(argv[0], errs());
+ return 1;
+ }
+
+ // Figure out what stream we are supposed to write to...
+ // FIXME: outs() is not binary!
+ raw_ostream *Out = &outs(); // Default to printing to stdout...
+ if (OutputFilename != "-") {
+ if (NoOutput || AnalyzeOnly) {
+ errs() << "WARNING: The -o (output filename) option is ignored when\n"
+ "the --disable-output or --analyze options are used.\n";
+ } else {
// Make sure that the Output file gets unlinked from the disk if we get a
// SIGINT
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
+
+ std::string ErrorInfo;
+ Out = new raw_fd_ostream(OutputFilename.c_str(), ErrorInfo,
+ raw_fd_ostream::F_Binary);
+ if (!ErrorInfo.empty()) {
+ errs() << ErrorInfo << '\n';
+ delete Out;
+ return 1;
+ }
}
+ }
- // 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.
- if (!Force && !NoOutput && CheckBitcodeOutputToConsole(Out,!Quiet)) {
+ // 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.
+ if (!Force && !NoOutput && !AnalyzeOnly && !OutputAssembly)
+ if (CheckBitcodeOutputToConsole(*Out, !Quiet))
NoOutput = true;
- }
- // Create a PassManager to hold and optimize the collection of passes we are
- // about to build...
- //
- PassManager Passes;
+ // Create a PassManager to hold and optimize the collection of passes we are
+ // about to build...
+ //
+ PassManager Passes;
+
+ // Add an appropriate TargetData instance for this module...
+ TargetData *TD = 0;
+ const std::string &ModuleDataLayout = M.get()->getDataLayout();
+ if (!ModuleDataLayout.empty())
+ TD = new TargetData(ModuleDataLayout);
+ else if (!DefaultDataLayout.empty())
+ TD = new TargetData(DefaultDataLayout);
+
+ if (TD)
+ Passes.add(TD);
+
+ FunctionPassManager *FPasses = NULL;
+ if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+ FPasses = new FunctionPassManager(M.get());
+ if (TD)
+ FPasses->add(new TargetData(*TD));
+ }
- // Add an appropriate TargetData instance for this module...
- Passes.add(new TargetData(M.get()));
+ // 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)) {
+ AddStandardCompilePasses(Passes);
+ StandardCompileOpts = false;
+ }
- FunctionPassManager *FPasses = NULL;
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- FPasses = new FunctionPassManager(new ExistingModuleProvider(M.get()));
- FPasses->add(new TargetData(M.get()));
+ if (StandardLinkOpts &&
+ StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
+ AddStandardLinkPasses(Passes);
+ StandardLinkOpts = false;
}
-
- // 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)) {
- AddStandardCompilePasses(Passes);
- StandardCompileOpts = false;
- }
-
- if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 1);
- OptLevelO1 = false;
- }
- if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 2);
- OptLevelO2 = false;
- }
+ if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
+ AddOptimizationPasses(Passes, *FPasses, 1);
+ OptLevelO1 = false;
+ }
- if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
- AddOptimizationPasses(Passes, *FPasses, 3);
- OptLevelO3 = false;
- }
+ if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
+ AddOptimizationPasses(Passes, *FPasses, 2);
+ OptLevelO2 = false;
+ }
- const PassInfo *PassInf = PassList[i];
- Pass *P = 0;
- if (PassInf->getNormalCtor())
- P = PassInf->getNormalCtor()();
- else
- cerr << argv[0] << ": cannot create pass: "
+ if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
+ AddOptimizationPasses(Passes, *FPasses, 3);
+ OptLevelO3 = false;
+ }
+
+ 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) {
- addPass(Passes, P);
-
- if (AnalyzeOnly) {
- if (dynamic_cast<BasicBlockPass*>(P))
- Passes.add(new BasicBlockPassPrinter(PassInf));
- else if (dynamic_cast<LoopPass*>(P))
- Passes.add(new LoopPassPrinter(PassInf));
- else if (dynamic_cast<FunctionPass*>(P))
- Passes.add(new FunctionPassPrinter(PassInf));
- else if (dynamic_cast<CallGraphSCCPass*>(P))
- Passes.add(new CallGraphSCCPassPrinter(PassInf));
- else
- Passes.add(new ModulePassPrinter(PassInf));
+ if (P) {
+ addPass(Passes, P);
+
+ if (AnalyzeOnly) {
+ switch (P->getPassKind()) {
+ case PT_BasicBlock:
+ Passes.add(new BasicBlockPassPrinter(PassInf));
+ break;
+ case PT_Loop:
+ Passes.add(new LoopPassPrinter(PassInf));
+ break;
+ case PT_Function:
+ Passes.add(new FunctionPassPrinter(PassInf));
+ break;
+ case PT_CallGraphSCC:
+ Passes.add(new CallGraphSCCPassPrinter(PassInf));
+ break;
+ default:
+ Passes.add(new ModulePassPrinter(PassInf));
+ break;
}
}
-
- if (PrintEachXForm)
- Passes.add(createPrintModulePass(&errs()));
}
-
- // If -std-compile-opts was specified at the end of the pass list, add them.
- if (StandardCompileOpts) {
- AddStandardCompilePasses(Passes);
- StandardCompileOpts = false;
- }
- if (OptLevelO1) {
- AddOptimizationPasses(Passes, *FPasses, 1);
- }
+ if (PrintEachXForm)
+ Passes.add(createPrintModulePass(&errs()));
+ }
- if (OptLevelO2) {
- AddOptimizationPasses(Passes, *FPasses, 2);
- }
+ // If -std-compile-opts was specified at the end of the pass list, add them.
+ if (StandardCompileOpts) {
+ AddStandardCompilePasses(Passes);
+ StandardCompileOpts = false;
+ }
- if (OptLevelO3) {
- AddOptimizationPasses(Passes, *FPasses, 3);
- }
+ if (StandardLinkOpts) {
+ AddStandardLinkPasses(Passes);
+ StandardLinkOpts = false;
+ }
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- for (Module::iterator I = M.get()->begin(), E = M.get()->end();
- I != E; ++I)
- FPasses->run(*I);
- }
+ if (OptLevelO1)
+ AddOptimizationPasses(Passes, *FPasses, 1);
- // Check that the module is well formed on completion of optimization
- if (!NoVerify && !VerifyEach)
- Passes.add(createVerifierPass());
+ if (OptLevelO2)
+ AddOptimizationPasses(Passes, *FPasses, 2);
- // Write bitcode out to disk or cout as the last step...
- if (!NoOutput && !AnalyzeOnly)
- Passes.add(CreateBitcodeWriterPass(*Out));
+ if (OptLevelO3)
+ AddOptimizationPasses(Passes, *FPasses, 3);
- // Now that we have all of the passes ready, run them.
- Passes.run(*M.get());
+ if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
+ FPasses->doInitialization();
+ for (Module::iterator I = M.get()->begin(), E = M.get()->end();
+ I != E; ++I)
+ FPasses->run(*I);
+ }
- // Delete the ofstream.
- if (Out != &std::cout)
- delete Out;
- return 0;
+ // Check that the module is well formed on completion of optimization
+ if (!NoVerify && !VerifyEach)
+ Passes.add(createVerifierPass());
- } catch (const std::string& msg) {
- cerr << argv[0] << ": " << msg << "\n";
- } catch (...) {
- cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
+ // Write bitcode or assembly out to disk or outs() as the last step...
+ if (!NoOutput && !AnalyzeOnly) {
+ if (OutputAssembly)
+ Passes.add(createPrintModulePass(Out));
+ else
+ Passes.add(createBitcodeWriterPass(*Out));
}
- llvm_shutdown();
- return 1;
+
+ // Now that we have all of the passes ready, run them.
+ Passes.run(*M.get());
+
+ // Delete the raw_fd_ostream.
+ if (Out != &outs())
+ delete Out;
+ return 0;
}