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//===- DomPrinter.cpp - DOT printer for the dominance trees ------------===//
//
// 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 defines '-dot-dom' and '-dot-postdom' analysis passes, which emit
// a dom.<fnname>.dot or postdom.<fnname>.dot file for each function in the
// program, with a graph of the dominance/postdominance tree of that
// function.
//
// There are also passes available to directly call dotty ('-view-dom' or
// '-view-postdom'). By appending '-only' like '-dot-dom-only' only the
// names of the bbs are printed, but the content is hidden.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/DomPrinter.h"
#include "llvm/Analysis/DOTGraphTraitsPass.h"
#include "llvm/Analysis/PostDominators.h"
#include "llvm/InitializePasses.h"
using namespace llvm;
void DominatorTree::viewGraph(const Twine &Name, const Twine &Title) {
#ifndef NDEBUG
ViewGraph(this, Name, false, Title);
#else
errs() << "DomTree dump not available, build with DEBUG\n";
#endif // NDEBUG
}
void DominatorTree::viewGraph() {
#ifndef NDEBUG
this->viewGraph("domtree", "Dominator Tree for function");
#else
errs() << "DomTree dump not available, build with DEBUG\n";
#endif // NDEBUG
}
namespace {
struct LegacyDominatorTreeWrapperPassAnalysisGraphTraits {
static DominatorTree *getGraph(DominatorTreeWrapperPass *DTWP) {
return &DTWP->getDomTree();
}
};
struct DomViewerWrapperPass
: public DOTGraphTraitsViewerWrapperPass<
DominatorTreeWrapperPass, false, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
DomViewerWrapperPass()
: DOTGraphTraitsViewerWrapperPass<
DominatorTreeWrapperPass, false, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits>("dom", ID) {
initializeDomViewerWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct DomOnlyViewerWrapperPass
: public DOTGraphTraitsViewerWrapperPass<
DominatorTreeWrapperPass, true, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
DomOnlyViewerWrapperPass()
: DOTGraphTraitsViewerWrapperPass<
DominatorTreeWrapperPass, true, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits>("domonly", ID) {
initializeDomOnlyViewerWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits {
static PostDominatorTree *getGraph(PostDominatorTreeWrapperPass *PDTWP) {
return &PDTWP->getPostDomTree();
}
};
struct PostDomViewerWrapperPass
: public DOTGraphTraitsViewerWrapperPass<
PostDominatorTreeWrapperPass, false, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
PostDomViewerWrapperPass()
: DOTGraphTraitsViewerWrapperPass<
PostDominatorTreeWrapperPass, false, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits>("postdom",
ID) {
initializePostDomViewerWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct PostDomOnlyViewerWrapperPass
: public DOTGraphTraitsViewerWrapperPass<
PostDominatorTreeWrapperPass, true, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
PostDomOnlyViewerWrapperPass()
: DOTGraphTraitsViewerWrapperPass<
PostDominatorTreeWrapperPass, true, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits>(
"postdomonly", ID) {
initializePostDomOnlyViewerWrapperPassPass(
*PassRegistry::getPassRegistry());
}
};
} // end anonymous namespace
char DomViewerWrapperPass::ID = 0;
INITIALIZE_PASS(DomViewerWrapperPass, "view-dom",
"View dominance tree of function", false, false)
char DomOnlyViewerWrapperPass::ID = 0;
INITIALIZE_PASS(DomOnlyViewerWrapperPass, "view-dom-only",
"View dominance tree of function (with no function bodies)",
false, false)
char PostDomViewerWrapperPass::ID = 0;
INITIALIZE_PASS(PostDomViewerWrapperPass, "view-postdom",
"View postdominance tree of function", false, false)
char PostDomOnlyViewerWrapperPass::ID = 0;
INITIALIZE_PASS(PostDomOnlyViewerWrapperPass, "view-postdom-only",
"View postdominance tree of function "
"(with no function bodies)",
false, false)
namespace {
struct DomPrinterWrapperPass
: public DOTGraphTraitsPrinterWrapperPass<
DominatorTreeWrapperPass, false, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
DomPrinterWrapperPass()
: DOTGraphTraitsPrinterWrapperPass<
DominatorTreeWrapperPass, false, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits>("dom", ID) {
initializeDomPrinterWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct DomOnlyPrinterWrapperPass
: public DOTGraphTraitsPrinterWrapperPass<
DominatorTreeWrapperPass, true, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
DomOnlyPrinterWrapperPass()
: DOTGraphTraitsPrinterWrapperPass<
DominatorTreeWrapperPass, true, DominatorTree *,
LegacyDominatorTreeWrapperPassAnalysisGraphTraits>("domonly", ID) {
initializeDomOnlyPrinterWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct PostDomPrinterWrapperPass
: public DOTGraphTraitsPrinterWrapperPass<
PostDominatorTreeWrapperPass, false, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
PostDomPrinterWrapperPass()
: DOTGraphTraitsPrinterWrapperPass<
PostDominatorTreeWrapperPass, false, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits>("postdom",
ID) {
initializePostDomPrinterWrapperPassPass(*PassRegistry::getPassRegistry());
}
};
struct PostDomOnlyPrinterWrapperPass
: public DOTGraphTraitsPrinterWrapperPass<
PostDominatorTreeWrapperPass, true, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits> {
static char ID;
PostDomOnlyPrinterWrapperPass()
: DOTGraphTraitsPrinterWrapperPass<
PostDominatorTreeWrapperPass, true, PostDominatorTree *,
LegacyPostDominatorTreeWrapperPassAnalysisGraphTraits>(
"postdomonly", ID) {
initializePostDomOnlyPrinterWrapperPassPass(
*PassRegistry::getPassRegistry());
}
};
} // end anonymous namespace
char DomPrinterWrapperPass::ID = 0;
INITIALIZE_PASS(DomPrinterWrapperPass, "dot-dom",
"Print dominance tree of function to 'dot' file", false, false)
char DomOnlyPrinterWrapperPass::ID = 0;
INITIALIZE_PASS(DomOnlyPrinterWrapperPass, "dot-dom-only",
"Print dominance tree of function to 'dot' file "
"(with no function bodies)",
false, false)
char PostDomPrinterWrapperPass::ID = 0;
INITIALIZE_PASS(PostDomPrinterWrapperPass, "dot-postdom",
"Print postdominance tree of function to 'dot' file", false,
false)
char PostDomOnlyPrinterWrapperPass::ID = 0;
INITIALIZE_PASS(PostDomOnlyPrinterWrapperPass, "dot-postdom-only",
"Print postdominance tree of function to 'dot' file "
"(with no function bodies)",
false, false)
// Create methods available outside of this file, to use them
// "include/llvm/LinkAllPasses.h". Otherwise the pass would be deleted by
// the link time optimization.
FunctionPass *llvm::createDomPrinterWrapperPassPass() {
return new DomPrinterWrapperPass();
}
FunctionPass *llvm::createDomOnlyPrinterWrapperPassPass() {
return new DomOnlyPrinterWrapperPass();
}
FunctionPass *llvm::createDomViewerWrapperPassPass() {
return new DomViewerWrapperPass();
}
FunctionPass *llvm::createDomOnlyViewerWrapperPassPass() {
return new DomOnlyViewerWrapperPass();
}
FunctionPass *llvm::createPostDomPrinterWrapperPassPass() {
return new PostDomPrinterWrapperPass();
}
FunctionPass *llvm::createPostDomOnlyPrinterWrapperPassPass() {
return new PostDomOnlyPrinterWrapperPass();
}
FunctionPass *llvm::createPostDomViewerWrapperPassPass() {
return new PostDomViewerWrapperPass();
}
FunctionPass *llvm::createPostDomOnlyViewerWrapperPassPass() {
return new PostDomOnlyViewerWrapperPass();
}
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