mirror of
https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169817 91177308-0d34-0410-b5e6-96231b3b80d8
832 lines
26 KiB
C++
832 lines
26 KiB
C++
//===- opt.cpp - The LLVM Modular Optimizer -------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Optimizations may be specified an arbitrary number of times on the command
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// line, They are run in the order specified.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/LLVMContext.h"
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#include "llvm/ADT/StringSet.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Analysis/LoopPass.h"
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#include "llvm/Analysis/RegionPass.h"
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#include "llvm/Analysis/Verifier.h"
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#include "llvm/Assembly/PrintModulePass.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/CallGraphSCCPass.h"
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#include "llvm/CodeGen/CommandFlags.h"
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#include "llvm/DataLayout.h"
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#include "llvm/DebugInfo.h"
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#include "llvm/LinkAllPasses.h"
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#include "llvm/LinkAllVMCore.h"
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#include "llvm/MC/SubtargetFeature.h"
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/TargetTransformInfo.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/IRReader.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/PassNameParser.h"
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#include "llvm/Support/PluginLoader.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/SystemUtils.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Support/ToolOutputFile.h"
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#include "llvm/Target/TargetLibraryInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Transforms/IPO/PassManagerBuilder.h"
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#include <algorithm>
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#include <memory>
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using namespace llvm;
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// The OptimizationList is automatically populated with registered Passes by the
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// PassNameParser.
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//
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static cl::list<const PassInfo*, bool, PassNameParser>
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PassList(cl::desc("Optimizations available:"));
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// Other command line options...
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//
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static cl::opt<std::string>
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InputFilename(cl::Positional, cl::desc("<input bitcode file>"),
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cl::init("-"), cl::value_desc("filename"));
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static cl::opt<std::string>
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OutputFilename("o", cl::desc("Override output filename"),
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cl::value_desc("filename"));
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static cl::opt<bool>
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Force("f", cl::desc("Enable binary output on terminals"));
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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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static cl::opt<bool>
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NoOutput("disable-output",
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cl::desc("Do not write result bitcode file"), cl::Hidden);
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static cl::opt<bool>
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OutputAssembly("S", cl::desc("Write output as LLVM assembly"));
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static cl::opt<bool>
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NoVerify("disable-verify", cl::desc("Do not verify result module"), cl::Hidden);
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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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static cl::opt<bool>
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DisableOptimizations("disable-opt",
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cl::desc("Do not run any optimization passes"));
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static cl::opt<bool>
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DisableInternalize("disable-internalize",
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cl::desc("Do not mark all symbols as internal"));
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static cl::opt<bool>
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StandardCompileOpts("std-compile-opts",
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cl::desc("Include the standard compile time optimizations"));
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static cl::opt<bool>
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StandardLinkOpts("std-link-opts",
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cl::desc("Include the standard link time optimizations"));
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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 clang -O1"));
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static cl::opt<bool>
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OptLevelO2("O2",
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cl::desc("Optimization level 2. Similar to clang -O2"));
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static cl::opt<bool>
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OptLevelOs("Os",
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cl::desc("Like -O2 with extra optimizations for size. Similar to clang -Os"));
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static cl::opt<bool>
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OptLevelOz("Oz",
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cl::desc("Like -Os but reduces code size further. Similar to clang -Oz"));
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static cl::opt<bool>
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OptLevelO3("O3",
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cl::desc("Optimization level 3. Similar to clang -O3"));
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static cl::opt<std::string>
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TargetTriple("mtriple", cl::desc("Override target triple for module"));
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static cl::opt<bool>
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UnitAtATime("funit-at-a-time",
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cl::desc("Enable IPO. This is same as llvm-gcc's -funit-at-a-time"),
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cl::init(true));
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static cl::opt<bool>
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DisableSimplifyLibCalls("disable-simplify-libcalls",
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cl::desc("Disable simplify-libcalls"));
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static cl::opt<bool>
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Quiet("q", cl::desc("Obsolete option"), cl::Hidden);
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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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static cl::opt<bool>
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AnalyzeOnly("analyze", cl::desc("Only perform analysis, no optimization"));
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static cl::opt<bool>
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PrintBreakpoints("print-breakpoints-for-testing",
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cl::desc("Print select breakpoints location for testing"));
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static cl::opt<std::string>
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DefaultDataLayout("default-data-layout",
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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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// ---------- Define Printers for module and function passes ------------
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namespace {
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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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raw_ostream &Out;
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std::string PassName;
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CallGraphSCCPassPrinter(const PassInfo *PI, raw_ostream &out) :
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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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}
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virtual bool runOnSCC(CallGraphSCC &SCC) {
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if (!Quiet)
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Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
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// Get and print pass...
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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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}
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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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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struct ModulePassPrinter : public ModulePass {
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static char ID;
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const PassInfo *PassToPrint;
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raw_ostream &Out;
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std::string PassName;
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ModulePassPrinter(const PassInfo *PI, raw_ostream &out)
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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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virtual bool runOnModule(Module &M) {
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if (!Quiet)
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Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
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// Get and print pass...
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out, &M);
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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AU.setPreservesAll();
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}
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};
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char ModulePassPrinter::ID = 0;
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struct FunctionPassPrinter : public FunctionPass {
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const PassInfo *PassToPrint;
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raw_ostream &Out;
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static char ID;
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std::string PassName;
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FunctionPassPrinter(const PassInfo *PI, raw_ostream &out)
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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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}
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virtual bool runOnFunction(Function &F) {
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if (!Quiet)
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Out << "Printing analysis '" << PassToPrint->getPassName()
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<< "' for function '" << F.getName() << "':\n";
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// Get and print pass...
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
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F.getParent());
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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AU.setPreservesAll();
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}
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};
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char FunctionPassPrinter::ID = 0;
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struct LoopPassPrinter : public LoopPass {
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static char ID;
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const PassInfo *PassToPrint;
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raw_ostream &Out;
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std::string PassName;
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LoopPassPrinter(const PassInfo *PI, raw_ostream &out) :
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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;
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}
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virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
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if (!Quiet)
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Out << "Printing analysis '" << PassToPrint->getPassName() << "':\n";
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// Get and print pass...
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
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L->getHeader()->getParent()->getParent());
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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AU.setPreservesAll();
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}
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};
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char LoopPassPrinter::ID = 0;
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struct RegionPassPrinter : public RegionPass {
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static char ID;
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const PassInfo *PassToPrint;
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raw_ostream &Out;
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std::string PassName;
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RegionPassPrinter(const PassInfo *PI, raw_ostream &out) : RegionPass(ID),
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PassToPrint(PI), Out(out) {
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std::string PassToPrintName = PassToPrint->getPassName();
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PassName = "RegionPass Printer: " + PassToPrintName;
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}
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virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
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if (!Quiet) {
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Out << "Printing analysis '" << PassToPrint->getPassName() << "' for "
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<< "region: '" << R->getNameStr() << "' in function '"
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<< R->getEntry()->getParent()->getName() << "':\n";
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}
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// Get and print pass...
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
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R->getEntry()->getParent()->getParent());
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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AU.setPreservesAll();
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}
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};
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char RegionPassPrinter::ID = 0;
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struct BasicBlockPassPrinter : public BasicBlockPass {
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const PassInfo *PassToPrint;
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raw_ostream &Out;
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static char ID;
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std::string PassName;
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BasicBlockPassPrinter(const PassInfo *PI, raw_ostream &out)
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: BasicBlockPass(ID), PassToPrint(PI), Out(out) {
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std::string PassToPrintName = PassToPrint->getPassName();
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PassName = "BasicBlockPass Printer: " + PassToPrintName;
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}
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virtual bool runOnBasicBlock(BasicBlock &BB) {
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if (!Quiet)
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Out << "Printing Analysis info for BasicBlock '" << BB.getName()
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<< "': Pass " << PassToPrint->getPassName() << ":\n";
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// Get and print pass...
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getAnalysisID<Pass>(PassToPrint->getTypeInfo()).print(Out,
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BB.getParent()->getParent());
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return false;
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}
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virtual const char *getPassName() const { return PassName.c_str(); }
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequiredID(PassToPrint->getTypeInfo());
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AU.setPreservesAll();
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}
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};
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char BasicBlockPassPrinter::ID = 0;
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struct BreakpointPrinter : public ModulePass {
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raw_ostream &Out;
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static char ID;
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BreakpointPrinter(raw_ostream &out)
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: ModulePass(ID), Out(out) {
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}
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void getContextName(DIDescriptor Context, std::string &N) {
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if (Context.isNameSpace()) {
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DINameSpace NS(Context);
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if (!NS.getName().empty()) {
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getContextName(NS.getContext(), N);
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N = N + NS.getName().str() + "::";
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}
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} else if (Context.isType()) {
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DIType TY(Context);
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if (!TY.getName().empty()) {
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getContextName(TY.getContext(), N);
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N = N + TY.getName().str() + "::";
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}
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}
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}
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virtual bool runOnModule(Module &M) {
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StringSet<> Processed;
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if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
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for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
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std::string Name;
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DISubprogram SP(NMD->getOperand(i));
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if (SP.Verify())
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getContextName(SP.getContext(), Name);
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Name = Name + SP.getDisplayName().str();
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if (!Name.empty() && Processed.insert(Name)) {
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Out << Name << "\n";
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}
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}
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return false;
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}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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} // anonymous namespace
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char BreakpointPrinter::ID = 0;
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static inline void addPass(PassManagerBase &PM, Pass *P) {
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// Add the pass to the pass manager...
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PM.add(P);
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// If we are verifying all of the intermediate steps, add the verifier...
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if (VerifyEach) PM.add(createVerifierPass());
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}
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/// AddOptimizationPasses - This routine adds optimization passes
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/// based on selected optimization level, OptLevel. This routine
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/// duplicates llvm-gcc behaviour.
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///
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/// OptLevel - Optimization Level
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static void AddOptimizationPasses(PassManagerBase &MPM,FunctionPassManager &FPM,
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unsigned OptLevel, unsigned SizeLevel) {
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FPM.add(createVerifierPass()); // Verify that input is correct
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PassManagerBuilder Builder;
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Builder.OptLevel = OptLevel;
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Builder.SizeLevel = SizeLevel;
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if (DisableInline) {
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// No inlining pass
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} else if (OptLevel > 1) {
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unsigned Threshold = 225;
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if (SizeLevel == 1) // -Os
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Threshold = 75;
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else if (SizeLevel == 2) // -Oz
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Threshold = 25;
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if (OptLevel > 2)
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Threshold = 275;
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Builder.Inliner = createFunctionInliningPass(Threshold);
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} else {
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Builder.Inliner = createAlwaysInlinerPass();
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}
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Builder.DisableUnitAtATime = !UnitAtATime;
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Builder.DisableUnrollLoops = OptLevel == 0;
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Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
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Builder.populateFunctionPassManager(FPM);
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Builder.populateModulePassManager(MPM);
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}
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static void AddStandardCompilePasses(PassManagerBase &PM) {
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PM.add(createVerifierPass()); // Verify that input is correct
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// If the -strip-debug command line option was specified, do it.
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if (StripDebug)
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addPass(PM, createStripSymbolsPass(true));
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if (DisableOptimizations) return;
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// -std-compile-opts adds the same module passes as -O3.
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PassManagerBuilder Builder;
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if (!DisableInline)
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Builder.Inliner = createFunctionInliningPass();
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Builder.OptLevel = 3;
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Builder.DisableSimplifyLibCalls = DisableSimplifyLibCalls;
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Builder.populateModulePassManager(PM);
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}
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static void AddStandardLinkPasses(PassManagerBase &PM) {
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PM.add(createVerifierPass()); // Verify that input is correct
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// If the -strip-debug command line option was specified, do it.
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if (StripDebug)
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addPass(PM, createStripSymbolsPass(true));
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if (DisableOptimizations) return;
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PassManagerBuilder Builder;
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Builder.populateLTOPassManager(PM, /*Internalize=*/ !DisableInternalize,
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/*RunInliner=*/ !DisableInline);
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}
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//===----------------------------------------------------------------------===//
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// CodeGen-related helper functions.
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//
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static TargetOptions GetTargetOptions() {
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TargetOptions Options;
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Options.LessPreciseFPMADOption = EnableFPMAD;
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Options.NoFramePointerElim = DisableFPElim;
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Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
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Options.AllowFPOpFusion = FuseFPOps;
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Options.UnsafeFPMath = EnableUnsafeFPMath;
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Options.NoInfsFPMath = EnableNoInfsFPMath;
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Options.NoNaNsFPMath = EnableNoNaNsFPMath;
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Options.HonorSignDependentRoundingFPMathOption =
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EnableHonorSignDependentRoundingFPMath;
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Options.UseSoftFloat = GenerateSoftFloatCalls;
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if (FloatABIForCalls != FloatABI::Default)
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Options.FloatABIType = FloatABIForCalls;
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Options.NoZerosInBSS = DontPlaceZerosInBSS;
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Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
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Options.DisableTailCalls = DisableTailCalls;
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Options.StackAlignmentOverride = OverrideStackAlignment;
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Options.RealignStack = EnableRealignStack;
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Options.TrapFuncName = TrapFuncName;
|
|
Options.PositionIndependentExecutable = EnablePIE;
|
|
Options.EnableSegmentedStacks = SegmentedStacks;
|
|
Options.UseInitArray = UseInitArray;
|
|
Options.SSPBufferSize = SSPBufferSize;
|
|
return Options;
|
|
}
|
|
|
|
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.
|
|
static TargetMachine* GetTargetMachine(std::string TripleStr) {
|
|
if (TripleStr.empty())
|
|
return 0;
|
|
|
|
// Get the target specific parser.
|
|
std::string Error;
|
|
Triple TheTriple(Triple::normalize(TargetTriple));
|
|
|
|
const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
|
|
Error);
|
|
if (!TheTarget) {
|
|
return 0;
|
|
}
|
|
|
|
// 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(),
|
|
MCPU, FeaturesStr, GetTargetOptions(),
|
|
RelocModel, CMModel,
|
|
GetCodeGenOptLevel());
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// main for opt
|
|
//
|
|
int main(int argc, char **argv) {
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
llvm::PrettyStackTraceProgram X(argc, argv);
|
|
|
|
// Enable debug stream buffering.
|
|
EnableDebugBuffering = true;
|
|
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
|
LLVMContext &Context = getGlobalContext();
|
|
|
|
InitializeAllTargets();
|
|
InitializeAllTargetMCs();
|
|
|
|
// Initialize passes
|
|
PassRegistry &Registry = *PassRegistry::getPassRegistry();
|
|
initializeCore(Registry);
|
|
initializeScalarOpts(Registry);
|
|
initializeVectorization(Registry);
|
|
initializeIPO(Registry);
|
|
initializeAnalysis(Registry);
|
|
initializeIPA(Registry);
|
|
initializeTransformUtils(Registry);
|
|
initializeInstCombine(Registry);
|
|
initializeInstrumentation(Registry);
|
|
initializeTarget(Registry);
|
|
|
|
cl::ParseCommandLineOptions(argc, argv,
|
|
"llvm .bc -> .bc modular optimizer and analysis printer\n");
|
|
|
|
if (AnalyzeOnly && NoOutput) {
|
|
errs() << argv[0] << ": analyze mode conflicts with no-output mode.\n";
|
|
return 1;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// If we are supposed to override the target triple, do so now.
|
|
if (!TargetTriple.empty())
|
|
M->setTargetTriple(Triple::normalize(TargetTriple));
|
|
|
|
// Figure out what stream we are supposed to write to...
|
|
OwningPtr<tool_output_file> Out;
|
|
if (NoOutput) {
|
|
if (!OutputFilename.empty())
|
|
errs() << "WARNING: The -o (output filename) option is ignored when\n"
|
|
"the --disable-output option is used.\n";
|
|
} else {
|
|
// Default to standard output.
|
|
if (OutputFilename.empty())
|
|
OutputFilename = "-";
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
// 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->os(), !Quiet))
|
|
NoOutput = true;
|
|
|
|
// Create a PassManager to hold and optimize the collection of passes we are
|
|
// about to build.
|
|
//
|
|
PassManager Passes;
|
|
|
|
// Add an appropriate TargetLibraryInfo pass for the module's triple.
|
|
TargetLibraryInfo *TLI = new TargetLibraryInfo(Triple(M->getTargetTriple()));
|
|
|
|
// The -disable-simplify-libcalls flag actually disables all builtin optzns.
|
|
if (DisableSimplifyLibCalls)
|
|
TLI->disableAllFunctions();
|
|
Passes.add(TLI);
|
|
|
|
// Add an appropriate DataLayout instance for this module.
|
|
DataLayout *TD = 0;
|
|
const std::string &ModuleDataLayout = M.get()->getDataLayout();
|
|
if (!ModuleDataLayout.empty())
|
|
TD = new DataLayout(ModuleDataLayout);
|
|
else if (!DefaultDataLayout.empty())
|
|
TD = new DataLayout(DefaultDataLayout);
|
|
|
|
if (TD)
|
|
Passes.add(TD);
|
|
|
|
std::auto_ptr<TargetMachine> TM(GetTargetMachine(TargetTriple));
|
|
if (TM.get()) {
|
|
Passes.add(new TargetTransformInfo(TM->getScalarTargetTransformInfo(),
|
|
TM->getVectorTargetTransformInfo()));
|
|
}
|
|
|
|
OwningPtr<FunctionPassManager> FPasses;
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
|
|
FPasses.reset(new FunctionPassManager(M.get()));
|
|
if (TD)
|
|
FPasses->add(new DataLayout(*TD));
|
|
}
|
|
|
|
if (PrintBreakpoints) {
|
|
// Default to standard output.
|
|
if (!Out) {
|
|
if (OutputFilename.empty())
|
|
OutputFilename = "-";
|
|
|
|
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;
|
|
}
|
|
|
|
// 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 (StandardLinkOpts &&
|
|
StandardLinkOpts.getPosition() < PassList.getPosition(i)) {
|
|
AddStandardLinkPasses(Passes);
|
|
StandardLinkOpts = false;
|
|
}
|
|
|
|
if (OptLevelO1 && OptLevelO1.getPosition() < PassList.getPosition(i)) {
|
|
AddOptimizationPasses(Passes, *FPasses, 1, 0);
|
|
OptLevelO1 = false;
|
|
}
|
|
|
|
if (OptLevelO2 && OptLevelO2.getPosition() < PassList.getPosition(i)) {
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 0);
|
|
OptLevelO2 = false;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (OptLevelO3 && OptLevelO3.getPosition() < PassList.getPosition(i)) {
|
|
AddOptimizationPasses(Passes, *FPasses, 3, 0);
|
|
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) {
|
|
PassKind Kind = P->getPassKind();
|
|
addPass(Passes, P);
|
|
|
|
if (AnalyzeOnly) {
|
|
switch (Kind) {
|
|
case PT_BasicBlock:
|
|
Passes.add(new BasicBlockPassPrinter(PassInf, Out->os()));
|
|
break;
|
|
case PT_Region:
|
|
Passes.add(new RegionPassPrinter(PassInf, Out->os()));
|
|
break;
|
|
case PT_Loop:
|
|
Passes.add(new LoopPassPrinter(PassInf, Out->os()));
|
|
break;
|
|
case PT_Function:
|
|
Passes.add(new FunctionPassPrinter(PassInf, Out->os()));
|
|
break;
|
|
case PT_CallGraphSCC:
|
|
Passes.add(new CallGraphSCCPassPrinter(PassInf, Out->os()));
|
|
break;
|
|
default:
|
|
Passes.add(new ModulePassPrinter(PassInf, Out->os()));
|
|
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 (StandardLinkOpts) {
|
|
AddStandardLinkPasses(Passes);
|
|
StandardLinkOpts = false;
|
|
}
|
|
|
|
if (OptLevelO1)
|
|
AddOptimizationPasses(Passes, *FPasses, 1, 0);
|
|
|
|
if (OptLevelO2)
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 0);
|
|
|
|
if (OptLevelOs)
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 1);
|
|
|
|
if (OptLevelOz)
|
|
AddOptimizationPasses(Passes, *FPasses, 2, 2);
|
|
|
|
if (OptLevelO3)
|
|
AddOptimizationPasses(Passes, *FPasses, 3, 0);
|
|
|
|
if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
|
|
FPasses->doInitialization();
|
|
for (Module::iterator F = M->begin(), E = M->end(); F != E; ++F)
|
|
FPasses->run(*F);
|
|
FPasses->doFinalization();
|
|
}
|
|
|
|
// Check that the module is well formed on completion of optimization
|
|
if (!NoVerify && !VerifyEach)
|
|
Passes.add(createVerifierPass());
|
|
|
|
// Write bitcode or assembly to the output as the last step...
|
|
if (!NoOutput && !AnalyzeOnly) {
|
|
if (OutputAssembly)
|
|
Passes.add(createPrintModulePass(&Out->os()));
|
|
else
|
|
Passes.add(createBitcodeWriterPass(Out->os()));
|
|
}
|
|
|
|
// Before executing passes, print the final values of the LLVM options.
|
|
cl::PrintOptionValues();
|
|
|
|
// Now that we have all of the passes ready, run them.
|
|
Passes.run(*M.get());
|
|
|
|
// Declare success.
|
|
if (!NoOutput || PrintBreakpoints)
|
|
Out->keep();
|
|
|
|
return 0;
|
|
}
|