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https://github.com/c64scene-ar/llvm-6502.git
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57418d8f54
LazyCallGraph analysis framework. Wire it up all the way through the opt driver and add some very basic testing that we can build pass pipelines including these components. Still a lot more to do in terms of testing that all of this works, but the basic pieces are here. There is a *lot* of boiler plate here. It's something I'm going to actively look at reducing, but I don't have any immediate ideas that don't end up making the code terribly complex in order to fold away the boilerplate. Until I figure out something to minimize the boilerplate, almost all of this is based on the code for the existing pass managers, copied and heavily adjusted to suit the needs of the CGSCC pass management layer. The actual CG management still has a bunch of FIXMEs in it. Notably, we don't do *any* updating of the CG as it is potentially invalidated. I wanted to get this in place to motivate the new analysis, and add update APIs to the analysis and the pass management layers in concert to make sure that the *right* APIs are present. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206745 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
//===- NewPMDriver.cpp - Driver for opt with new PM -----------------------===//
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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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/// \file
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///
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/// This file is just a split of the code that logically belongs in opt.cpp but
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/// that includes the new pass manager headers.
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///
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//===----------------------------------------------------------------------===//
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#include "NewPMDriver.h"
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#include "Passes.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Analysis/CGSCCPassManager.h"
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#include "llvm/Analysis/LazyCallGraph.h"
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#include "llvm/Bitcode/BitcodeWriterPass.h"
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ToolOutputFile.h"
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using namespace llvm;
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using namespace opt_tool;
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bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
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tool_output_file *Out, StringRef PassPipeline,
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OutputKind OK, VerifierKind VK) {
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FunctionAnalysisManager FAM;
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CGSCCAnalysisManager CGAM;
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ModuleAnalysisManager MAM;
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#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
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MAM.registerPass(CREATE_PASS);
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#include "PassRegistry.def"
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#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
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CGAM.registerPass(CREATE_PASS);
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#include "PassRegistry.def"
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#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
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FAM.registerPass(CREATE_PASS);
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#include "PassRegistry.def"
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// Cross register the analysis managers through their proxies.
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MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
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MAM.registerPass(CGSCCAnalysisManagerModuleProxy(CGAM));
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CGAM.registerPass(FunctionAnalysisManagerCGSCCProxy(FAM));
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CGAM.registerPass(ModuleAnalysisManagerCGSCCProxy(MAM));
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FAM.registerPass(CGSCCAnalysisManagerFunctionProxy(CGAM));
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FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
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ModulePassManager MPM;
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if (VK > VK_NoVerifier)
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MPM.addPass(VerifierPass());
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if (!parsePassPipeline(MPM, PassPipeline, VK == VK_VerifyEachPass)) {
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errs() << Arg0 << ": unable to parse pass pipeline description.\n";
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return false;
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}
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if (VK > VK_NoVerifier)
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MPM.addPass(VerifierPass());
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// Add any relevant output pass at the end of the pipeline.
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switch (OK) {
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case OK_NoOutput:
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break; // No output pass needed.
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case OK_OutputAssembly:
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MPM.addPass(PrintModulePass(Out->os()));
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break;
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case OK_OutputBitcode:
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MPM.addPass(BitcodeWriterPass(Out->os()));
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break;
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}
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// Before executing passes, print the final values of the LLVM options.
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cl::PrintOptionValues();
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// Now that we have all of the passes ready, run them.
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MPM.run(&M, &MAM);
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// Declare success.
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if (OK != OK_NoOutput)
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Out->keep();
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return true;
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}
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