| //===- DeltaManager.cpp - Runs Delta Passes to reduce Input ---------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file calls each specialized Delta pass in order to reduce the input IR |
| // file. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "DeltaManager.h" |
| #include "ReducerWorkItem.h" |
| #include "TestRunner.h" |
| #include "deltas/Delta.h" |
| #include "deltas/ReduceAliases.h" |
| #include "deltas/ReduceArguments.h" |
| #include "deltas/ReduceAttributes.h" |
| #include "deltas/ReduceBasicBlocks.h" |
| #include "deltas/ReduceDIMetadata.h" |
| #include "deltas/ReduceDbgRecords.h" |
| #include "deltas/ReduceFunctionBodies.h" |
| #include "deltas/ReduceFunctions.h" |
| #include "deltas/ReduceGlobalObjects.h" |
| #include "deltas/ReduceGlobalValues.h" |
| #include "deltas/ReduceGlobalVarInitializers.h" |
| #include "deltas/ReduceGlobalVars.h" |
| #include "deltas/ReduceIRReferences.h" |
| #include "deltas/ReduceInstructionFlags.h" |
| #include "deltas/ReduceInstructionFlagsMIR.h" |
| #include "deltas/ReduceInstructions.h" |
| #include "deltas/ReduceInstructionsMIR.h" |
| #include "deltas/ReduceInvokes.h" |
| #include "deltas/ReduceMemoryOperations.h" |
| #include "deltas/ReduceMetadata.h" |
| #include "deltas/ReduceModuleData.h" |
| #include "deltas/ReduceOpcodes.h" |
| #include "deltas/ReduceOperandBundles.h" |
| #include "deltas/ReduceOperands.h" |
| #include "deltas/ReduceOperandsSkip.h" |
| #include "deltas/ReduceOperandsToArgs.h" |
| #include "deltas/ReduceRegisterDefs.h" |
| #include "deltas/ReduceRegisterMasks.h" |
| #include "deltas/ReduceRegisterUses.h" |
| #include "deltas/ReduceSpecialGlobals.h" |
| #include "deltas/ReduceUsingSimplifyCFG.h" |
| #include "deltas/ReduceVirtualRegisters.h" |
| #include "deltas/RunIRPasses.h" |
| #include "deltas/SimplifyInstructions.h" |
| #include "deltas/StripDebugInfo.h" |
| #include "llvm/ADT/SmallSet.h" |
| #include "llvm/Support/CommandLine.h" |
| |
| using namespace llvm; |
| |
| using SmallStringSet = SmallSet<StringRef, 8>; |
| |
| extern cl::OptionCategory LLVMReduceOptions; |
| static cl::list<std::string> |
| DeltaPasses("delta-passes", |
| cl::desc("Delta passes to run, separated by commas. By " |
| "default, run all delta passes."), |
| cl::cat(LLVMReduceOptions), cl::CommaSeparated); |
| |
| static cl::list<std::string> |
| SkipDeltaPasses("skip-delta-passes", |
| cl::desc("Delta passes to not run, separated by commas. By " |
| "default, run all delta passes."), |
| cl::cat(LLVMReduceOptions), cl::CommaSeparated); |
| |
| #define DELTA_PASSES \ |
| do { \ |
| DELTA_PASS("strip-debug-info", stripDebugInfoDeltaPass) \ |
| DELTA_PASS("functions", reduceFunctionsDeltaPass) \ |
| DELTA_PASS("function-bodies", reduceFunctionBodiesDeltaPass) \ |
| DELTA_PASS("special-globals", reduceSpecialGlobalsDeltaPass) \ |
| DELTA_PASS("aliases", reduceAliasesDeltaPass) \ |
| DELTA_PASS("ifuncs", reduceIFuncsDeltaPass) \ |
| DELTA_PASS("simplify-conditionals-true", reduceConditionalsTrueDeltaPass) \ |
| DELTA_PASS("simplify-conditionals-false", \ |
| reduceConditionalsFalseDeltaPass) \ |
| DELTA_PASS("invokes", reduceInvokesDeltaPass) \ |
| DELTA_PASS("unreachable-basic-blocks", \ |
| reduceUnreachableBasicBlocksDeltaPass) \ |
| DELTA_PASS("basic-blocks", reduceBasicBlocksDeltaPass) \ |
| DELTA_PASS("simplify-cfg", reduceUsingSimplifyCFGDeltaPass) \ |
| DELTA_PASS("function-data", reduceFunctionDataDeltaPass) \ |
| DELTA_PASS("global-values", reduceGlobalValuesDeltaPass) \ |
| DELTA_PASS("global-objects", reduceGlobalObjectsDeltaPass) \ |
| DELTA_PASS("global-initializers", reduceGlobalsInitializersDeltaPass) \ |
| DELTA_PASS("global-variables", reduceGlobalsDeltaPass) \ |
| DELTA_PASS("di-metadata", reduceDIMetadataDeltaPass) \ |
| DELTA_PASS("dbg-records", reduceDbgRecordDeltaPass) \ |
| DELTA_PASS("metadata", reduceMetadataDeltaPass) \ |
| DELTA_PASS("named-metadata", reduceNamedMetadataDeltaPass) \ |
| DELTA_PASS("arguments", reduceArgumentsDeltaPass) \ |
| DELTA_PASS("instructions", reduceInstructionsDeltaPass) \ |
| DELTA_PASS("simplify-instructions", simplifyInstructionsDeltaPass) \ |
| DELTA_PASS("ir-passes", runIRPassesDeltaPass) \ |
| DELTA_PASS("operands-zero", reduceOperandsZeroDeltaPass) \ |
| DELTA_PASS("operands-one", reduceOperandsOneDeltaPass) \ |
| DELTA_PASS("operands-nan", reduceOperandsNaNDeltaPass) \ |
| DELTA_PASS("operands-to-args", reduceOperandsToArgsDeltaPass) \ |
| DELTA_PASS("operands-skip", reduceOperandsSkipDeltaPass) \ |
| DELTA_PASS("operand-bundles", reduceOperandBundesDeltaPass) \ |
| DELTA_PASS("attributes", reduceAttributesDeltaPass) \ |
| DELTA_PASS("module-data", reduceModuleDataDeltaPass) \ |
| DELTA_PASS("opcodes", reduceOpcodesDeltaPass) \ |
| DELTA_PASS("volatile", reduceVolatileInstructionsDeltaPass) \ |
| DELTA_PASS("atomic-ordering", reduceAtomicOrderingDeltaPass) \ |
| DELTA_PASS("syncscopes", reduceAtomicSyncScopesDeltaPass) \ |
| DELTA_PASS("instruction-flags", reduceInstructionFlagsDeltaPass) \ |
| } while (false) |
| |
| #define DELTA_PASSES_MIR \ |
| do { \ |
| DELTA_PASS("instructions", reduceInstructionsMIRDeltaPass) \ |
| DELTA_PASS("ir-instruction-references", \ |
| reduceIRInstructionReferencesDeltaPass) \ |
| DELTA_PASS("ir-block-references", reduceIRBlockReferencesDeltaPass) \ |
| DELTA_PASS("ir-function-references", reduceIRFunctionReferencesDeltaPass) \ |
| DELTA_PASS("instruction-flags", reduceInstructionFlagsMIRDeltaPass) \ |
| DELTA_PASS("register-uses", reduceRegisterUsesMIRDeltaPass) \ |
| DELTA_PASS("register-defs", reduceRegisterDefsMIRDeltaPass) \ |
| DELTA_PASS("register-hints", reduceVirtualRegisterHintsDeltaPass) \ |
| DELTA_PASS("register-masks", reduceRegisterMasksMIRDeltaPass) \ |
| } while (false) |
| |
| static void runAllDeltaPasses(TestRunner &Tester, |
| const SmallStringSet &SkipPass) { |
| #define DELTA_PASS(NAME, FUNC) \ |
| if (!SkipPass.count(NAME)) { \ |
| FUNC(Tester); \ |
| } |
| if (Tester.getProgram().isMIR()) { |
| DELTA_PASSES_MIR; |
| } else { |
| DELTA_PASSES; |
| } |
| #undef DELTA_PASS |
| } |
| |
| static void runDeltaPassName(TestRunner &Tester, StringRef PassName) { |
| #define DELTA_PASS(NAME, FUNC) \ |
| if (PassName == NAME) { \ |
| FUNC(Tester); \ |
| return; \ |
| } |
| if (Tester.getProgram().isMIR()) { |
| DELTA_PASSES_MIR; |
| } else { |
| DELTA_PASSES; |
| } |
| #undef DELTA_PASS |
| |
| // We should have errored on unrecognized passes before trying to run |
| // anything. |
| llvm_unreachable("unknown delta pass"); |
| } |
| |
| void llvm::printDeltaPasses(raw_ostream &OS) { |
| OS << "Delta passes (pass to `--delta-passes=` as a comma separated list):\n"; |
| #define DELTA_PASS(NAME, FUNC) OS << " " << NAME << "\n"; |
| OS << " IR:\n"; |
| DELTA_PASSES; |
| OS << " MIR:\n"; |
| DELTA_PASSES_MIR; |
| #undef DELTA_PASS |
| } |
| |
| // Built a set of available delta passes. |
| static void collectPassNames(const TestRunner &Tester, |
| SmallStringSet &NameSet) { |
| #define DELTA_PASS(NAME, FUNC) NameSet.insert(NAME); |
| if (Tester.getProgram().isMIR()) { |
| DELTA_PASSES_MIR; |
| } else { |
| DELTA_PASSES; |
| } |
| #undef DELTA_PASS |
| } |
| |
| /// Verify all requested or skipped passes are valid names, and return them in a |
| /// set. |
| static SmallStringSet handlePassList(const TestRunner &Tester, |
| const cl::list<std::string> &PassList) { |
| SmallStringSet AllPasses; |
| collectPassNames(Tester, AllPasses); |
| |
| SmallStringSet PassSet; |
| for (StringRef PassName : PassList) { |
| if (!AllPasses.count(PassName)) { |
| errs() << "unknown pass \"" << PassName << "\"\n"; |
| exit(1); |
| } |
| |
| PassSet.insert(PassName); |
| } |
| |
| return PassSet; |
| } |
| |
| void llvm::runDeltaPasses(TestRunner &Tester, int MaxPassIterations) { |
| uint64_t OldComplexity = Tester.getProgram().getComplexityScore(); |
| |
| SmallStringSet RunPassSet, SkipPassSet; |
| |
| if (!DeltaPasses.empty()) |
| RunPassSet = handlePassList(Tester, DeltaPasses); |
| |
| if (!SkipDeltaPasses.empty()) |
| SkipPassSet = handlePassList(Tester, SkipDeltaPasses); |
| |
| for (int Iter = 0; Iter < MaxPassIterations; ++Iter) { |
| if (DeltaPasses.empty()) { |
| runAllDeltaPasses(Tester, SkipPassSet); |
| } else { |
| for (StringRef PassName : DeltaPasses) { |
| if (!SkipPassSet.count(PassName)) |
| runDeltaPassName(Tester, PassName); |
| } |
| } |
| |
| uint64_t NewComplexity = Tester.getProgram().getComplexityScore(); |
| if (NewComplexity >= OldComplexity) |
| break; |
| OldComplexity = NewComplexity; |
| } |
| } |
