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Use the pass registration mechanism to populate command line options for
opt, not huge explicit gross tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3021 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
ccbb3bd6e4
commit
c0ce68bf4a
@ -12,116 +12,86 @@
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#include "llvm/Bytecode/WriteBytecodePass.h"
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#include "llvm/Assembly/PrintModulePass.h"
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#include "llvm/Analysis/Verifier.h"
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#include "llvm/Transforms/ConstantMerge.h"
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#include "llvm/Transforms/CleanupGCCOutput.h"
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#include "llvm/Transforms/LevelChange.h"
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#include "llvm/Transforms/FunctionInlining.h"
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#include "llvm/Transforms/ChangeAllocations.h"
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#include "llvm/Transforms/Scalar.h"
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#include "llvm/Transforms/IPO/SimpleStructMutation.h"
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#include "llvm/Transforms/IPO/Internalize.h"
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#include "llvm/Transforms/IPO/GlobalDCE.h"
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#include "llvm/Transforms/IPO/PoolAllocate.h"
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#include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
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#include "llvm/Transforms/Instrumentation/TraceValues.h"
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#include "llvm/Transforms/Instrumentation/ProfilePaths.h"
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#include "llvm/Transforms/Instrumentation/EmitFunctions.h"
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#include "llvm/Target/TargetData.h"
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#include "Support/CommandLine.h"
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#include "Support/Signals.h"
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#include <fstream>
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#include <memory>
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#include <algorithm>
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using std::cerr;
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// FIXME: This should be parameterizable eventually for different target
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// types...
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static TargetData TD("opt target");
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// Opts enum - All of the transformations we can do...
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enum Opts {
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// Basic optimizations
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dce, die, constprop, gcse, licm, inlining, constmerge,
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strip, mstrip, mergereturn, simplifycfg,
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// Miscellaneous Transformations
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raiseallocs, lowerallocs, funcresolve, cleangcc, lowerrefs,
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// Printing and verifying...
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print, printm, verify,
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// More powerful optimizations
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indvars, instcombine, sccp, adce, raise, reassociate, mem2reg, pinodes,
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// Instrumentation
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trace, tracem, paths, emitfuncs,
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// Interprocedural optimizations...
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internalize, globaldce, swapstructs, sortstructs, poolalloc,
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};
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static Pass *createPrintFunctionPass() {
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return new PrintFunctionPass("Current Function: \n", &cerr);
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}
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static Pass *createPrintModulePass() {
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return new PrintModulePass(&cerr);
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}
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static Pass *createLowerAllocationsPassNT() {
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return createLowerAllocationsPass(TD);
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}
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// OptTable - Correlate enum Opts to Pass constructors...
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//===----------------------------------------------------------------------===//
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// PassNameParser class - Make use of the pass registration mechanism to
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// automatically add a command line argument to opt for each pass.
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//
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struct {
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enum Opts OptID;
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Pass * (*PassCtor)();
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} OptTable[] = {
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{ dce , createDeadCodeEliminationPass },
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{ die , createDeadInstEliminationPass },
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{ constprop , createConstantPropogationPass },
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{ gcse , createGCSEPass },
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{ licm , createLICMPass },
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{ inlining , createFunctionInliningPass },
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{ constmerge , createConstantMergePass },
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{ strip , createSymbolStrippingPass },
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{ mstrip , createFullSymbolStrippingPass },
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{ mergereturn, createUnifyFunctionExitNodesPass },
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{ simplifycfg, createCFGSimplificationPass },
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namespace { // anonymous namespace for local class...
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class PassNameParser : public PassRegistrationListener,
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public cl::parser<const PassInfo*> {
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cl::Option *Opt;
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public:
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PassNameParser() : Opt(0) {}
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void initialize(cl::Option &O) {
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Opt = &O;
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cl::parser<const PassInfo*>::initialize(O);
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{ indvars , createIndVarSimplifyPass },
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{ instcombine, createInstructionCombiningPass },
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{ sccp , createSCCPPass },
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{ adce , createAggressiveDCEPass },
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{ raise , createRaisePointerReferencesPass },
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/* { reassociate, createReassociatePass },*/
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{ mem2reg , createPromoteMemoryToRegister },
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{ pinodes , createPiNodeInsertionPass },
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{ lowerrefs , createDecomposeMultiDimRefsPass },
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// Add all of the passes to the map that got initialized before 'this' did.
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enumeratePasses();
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}
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{ trace , createTraceValuesPassForBasicBlocks },
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{ tracem , createTraceValuesPassForFunction },
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{ paths , createProfilePathsPass },
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{ emitfuncs , createEmitFunctionTablePass },
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{ print , createPrintFunctionPass },
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{ printm , createPrintModulePass },
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{ verify , createVerifierPass },
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static inline bool ignorablePass(const PassInfo *P) {
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// Ignore non-selectable and non-constructible passes!
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return P->getPassArgument() == 0 ||
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(P->getNormalCtor() == 0 && P->getDataCtor() == 0);
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}
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{ raiseallocs, createRaiseAllocationsPass },
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{ lowerallocs, createLowerAllocationsPassNT },
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{ cleangcc , createCleanupGCCOutputPass },
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{ funcresolve, createFunctionResolvingPass },
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// Implement the PassRegistrationListener callbacks used to populate our map
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//
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virtual void passRegistered(const PassInfo *P) {
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if (ignorablePass(P) || !Opt) return;
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assert(findOption(P->getPassArgument()) == getNumOptions() &&
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"Two passes with the same argument attempted to be registered!");
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addLiteralOption(P->getPassArgument(), P, P->getPassName());
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Opt->addArgument(P->getPassArgument());
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}
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virtual void passEnumerate(const PassInfo *P) { passRegistered(P); }
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{ internalize, createInternalizePass },
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{ globaldce , createGlobalDCEPass },
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{ swapstructs, createSwapElementsPass },
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{ sortstructs, createSortElementsPass },
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{ poolalloc , createPoolAllocatePass },
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virtual void passUnregistered(const PassInfo *P) {
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if (ignorablePass(P) || !Opt) return;
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assert(findOption(P->getPassArgument()) != getNumOptions() &&
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"Registered Pass not in the pass map!");
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removeLiteralOption(P->getPassArgument());
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Opt->removeArgument(P->getPassArgument());
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}
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// ValLessThan - Provide a sorting comparator for Values elements...
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typedef std::pair<const char*,
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std::pair<const PassInfo*, const char*> > ValType;
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static bool ValLessThan(const ValType &VT1, const ValType &VT2) {
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return std::string(VT1.first) < std::string(VT2.first);
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}
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// printOptionInfo - Print out information about this option. Override the
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// default implementation to sort the table before we print...
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virtual void printOptionInfo(const cl::Option &O, unsigned GlobalWidth) const{
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PassNameParser *PNP = const_cast<PassNameParser*>(this);
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std::sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan);
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cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth);
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}
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};
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} // end anonymous namespace
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// Command line option handling code...
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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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OptimizationList(cl::desc("Optimizations available:"));
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// Other command line options...
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//
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static cl::opt<string>
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InputFilename(cl::Positional, cl::desc("<input bytecode>"), cl::init("-"));
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@ -142,55 +112,18 @@ Quiet("q", cl::desc("Don't print modifying pass names"));
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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::list<enum Opts>
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OptimizationList(cl::desc("Optimizations available:"), cl::values(
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clEnumVal(dce , "Dead Code Elimination"),
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clEnumVal(die , "Dead Instruction Elimination"),
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clEnumVal(constprop , "Simple constant propogation"),
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clEnumVal(gcse , "Global Common Subexpression Elimination"),
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clEnumVal(licm , "Loop Invariant Code Motion"),
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clEnumValN(inlining , "inline", "Function integration"),
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clEnumVal(constmerge , "Merge identical global constants"),
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clEnumVal(strip , "Strip symbols"),
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clEnumVal(mstrip , "Strip module symbols"),
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clEnumVal(mergereturn, "Unify function exit nodes"),
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clEnumVal(simplifycfg, "CFG Simplification"),
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clEnumVal(indvars , "Simplify Induction Variables"),
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clEnumVal(instcombine, "Combine redundant instructions"),
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clEnumVal(sccp , "Sparse Conditional Constant Propogation"),
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clEnumVal(adce , "Aggressive DCE"),
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clEnumVal(reassociate, "Reassociate expressions"),
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clEnumVal(mem2reg , "Promote alloca locations to registers"),
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clEnumVal(pinodes , "Insert Pi nodes after definitions"),
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clEnumVal(internalize, "Mark all fn's internal except for main"),
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clEnumVal(globaldce , "Remove unreachable globals"),
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clEnumVal(swapstructs, "Swap structure types around"),
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clEnumVal(sortstructs, "Sort structure elements"),
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clEnumVal(poolalloc , "Pool allocate disjoint datastructures"),
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clEnumVal(raiseallocs, "Raise allocations from calls to instructions"),
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clEnumVal(lowerallocs, "Lower allocations from instructions to calls (TD)"),
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clEnumVal(cleangcc , "Cleanup GCC Output"),
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clEnumVal(funcresolve, "Resolve calls to foo(...) to foo(<concrete types>)"),
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clEnumVal(raise , "Raise to Higher Level"),
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clEnumVal(trace , "Insert BB and Function trace code"),
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clEnumVal(tracem , "Insert Function trace code only"),
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clEnumVal(paths , "Insert path profiling instrumentation"),
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clEnumVal(emitfuncs , "Insert function pointer table"),
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clEnumVal(print , "Print working function to stderr"),
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clEnumVal(printm , "Print working module to stderr"),
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clEnumVal(verify , "Verify module is well formed"),
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clEnumVal(lowerrefs , "Decompose multi-dimensional structure/array refs to use one index per instruction"),
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0));
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//===----------------------------------------------------------------------===//
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// main for opt
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//
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int main(int argc, char **argv) {
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cl::ParseCommandLineOptions(argc, argv,
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" llvm .bc -> .bc modular optimizer\n");
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// FIXME: This should be parameterizable eventually for different target
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// types...
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TargetData TD("opt target");
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// Load the input module...
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std::auto_ptr<Module> M(ParseBytecodeFile(InputFilename));
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if (M.get() == 0) {
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@ -226,15 +159,17 @@ int main(int argc, char **argv) {
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// Create a new optimization pass for each one specified on the command line
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for (unsigned i = 0; i < OptimizationList.size(); ++i) {
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enum Opts Opt = OptimizationList[i];
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for (unsigned j = 0; j < sizeof(OptTable)/sizeof(OptTable[0]); ++j)
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if (Opt == OptTable[j].OptID) {
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Passes.add(OptTable[j].PassCtor());
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break;
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}
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const PassInfo *Opt = OptimizationList[i];
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if (Opt->getNormalCtor())
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Passes.add(Opt->getNormalCtor()());
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else if (Opt->getDataCtor())
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Passes.add(Opt->getDataCtor()(TD)); // Pass dummy target data...
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else
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cerr << "Cannot create pass: " << Opt->getPassName() << "\n";
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if (PrintEachXForm)
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Passes.add(new PrintModulePass(&std::cerr));
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Passes.add(new PrintModulePass(&cerr));
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}
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// Check that the module is well formed on completion of optimization
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