llvm/tools/llvm-reduce/deltas/RunIRPasses.cpp

   1 //===- RunIRPasses.cpp ----------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "RunIRPasses.h"
  10 #include "Delta.h"
  11 #include "llvm/Passes/PassBuilder.h"
  12 #include "llvm/Support/CommandLine.h"
  13 #include "llvm/Support/ErrorHandling.h"
  14
  15 using namespace llvm;
  16
  17 extern cl::OptionCategory LLVMReduceOptions;
  18
  19 static cl::opt<std::string> PassPipeline(
  20     "ir-passes",
  21     cl::desc("A textual description of the pass pipeline, same as "
  22              "what's passed to `opt -passes`."),
  23     cl::init("function(sroa,instcombine,gvn,simplifycfg,infer-address-spaces)"),
  24     cl::cat(LLVMReduceOptions));
  25
  26 static void runPasses(Oracle &O, ReducerWorkItem &WorkItem) {
  27   Module &Program = WorkItem.getModule();
  28   LoopAnalysisManager LAM;
  29   FunctionAnalysisManager FAM;
  30   CGSCCAnalysisManager CGAM;
  31   ModuleAnalysisManager MAM;
  32
  33   PassInstrumentationCallbacks PIC;
  34   PIC.registerShouldRunOptionalPassCallback(
  35       [&](StringRef, Any) { return !O.shouldKeep(); });
  36   PassBuilder PB(nullptr, PipelineTuningOptions(), std::nullopt, &PIC);
  37
  38   PB.registerModuleAnalyses(MAM);
  39   PB.registerCGSCCAnalyses(CGAM);
  40   PB.registerFunctionAnalyses(FAM);
  41   PB.registerLoopAnalyses(LAM);
  42   PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
  43
  44   ModulePassManager MPM;
  45   if (auto Err = PB.parsePassPipeline(MPM, PassPipeline)) {
  46     errs() << toString(std::move(Err)) << "\n";
  47     report_fatal_error("Error constructing pass pipeline");
  48   }
  49   MPM.run(Program, MAM);
  50 }
  51
  52 void llvm::runIRPassesDeltaPass(TestRunner &Test) {
  53   runDeltaPass(Test, runPasses, "Running passes");
  54 }