cc9a6ed09d
The passID is not currently stored in Pass but this avoids the unused variable warning. The passID is used to uniquely identify passes, currently this is only stored/used in PassInfo. PiperOrigin-RevId: 220485662
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
//===- CFGFunctionViewGraph.h - View/write graphviz graphs ------*- C++ -*-===//
|
|
//
|
|
// Copyright 2019 The MLIR Authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
// =============================================================================
|
|
|
|
#include "mlir/Transforms/CFGFunctionViewGraph.h"
|
|
#include "mlir/IR/CFGFunctionGraphTraits.h"
|
|
|
|
using namespace mlir;
|
|
|
|
namespace llvm {
|
|
|
|
// Specialize DOTGraphTraits to produce more readable output.
|
|
template <>
|
|
struct llvm::DOTGraphTraits<const CFGFunction *>
|
|
: public DefaultDOTGraphTraits {
|
|
using DefaultDOTGraphTraits::DefaultDOTGraphTraits;
|
|
|
|
static std::string getNodeLabel(const BasicBlock *basicBlock,
|
|
const CFGFunction *);
|
|
};
|
|
|
|
std::string llvm::DOTGraphTraits<const CFGFunction *>::getNodeLabel(
|
|
const BasicBlock *basicBlock, const CFGFunction *) {
|
|
// Reuse the print output for the node labels.
|
|
std::string outStreamStr;
|
|
raw_string_ostream os(outStreamStr);
|
|
basicBlock->print(os);
|
|
std::string &outStr = os.str();
|
|
|
|
if (outStr[0] == '\n')
|
|
outStr.erase(outStr.begin());
|
|
|
|
// Process string output to left justify the block.
|
|
for (unsigned i = 0; i != outStr.length(); ++i) {
|
|
if (outStr[i] == '\n') {
|
|
outStr[i] = '\\';
|
|
outStr.insert(outStr.begin() + i + 1, 'l');
|
|
}
|
|
}
|
|
|
|
return outStr;
|
|
}
|
|
|
|
} // end namespace llvm
|
|
|
|
void mlir::viewGraph(const CFGFunction &function, const llvm::Twine &name,
|
|
bool shortNames, const llvm::Twine &title,
|
|
llvm::GraphProgram::Name program) {
|
|
llvm::ViewGraph(&function, name, shortNames, title, program);
|
|
}
|
|
|
|
llvm::raw_ostream &mlir::writeGraph(llvm::raw_ostream &os,
|
|
const CFGFunction *function,
|
|
bool shortNames, const llvm::Twine &title) {
|
|
return llvm::WriteGraph(os, function, shortNames, title);
|
|
}
|
|
|
|
void mlir::CFGFunction::viewGraph() const {
|
|
::mlir::viewGraph(*this, llvm::Twine("cfgfunc ") + getName().str());
|
|
}
|
|
|
|
namespace {
|
|
struct PrintCFGPass : public FunctionPass {
|
|
PrintCFGPass(llvm::raw_ostream &os = llvm::errs(), bool shortNames = false,
|
|
const llvm::Twine &title = "")
|
|
: FunctionPass(&PrintCFGPass::passID), os(os), shortNames(shortNames),
|
|
title(title) {}
|
|
PassResult runOnCFGFunction(CFGFunction *function) override {
|
|
mlir::writeGraph(os, function, shortNames, title);
|
|
return success();
|
|
}
|
|
|
|
static char passID;
|
|
|
|
private:
|
|
llvm::raw_ostream &os;
|
|
bool shortNames;
|
|
const llvm::Twine &title;
|
|
};
|
|
} // namespace
|
|
|
|
char PrintCFGPass::passID = 0;
|
|
|
|
FunctionPass *mlir::createPrintCFGGraphPass(llvm::raw_ostream &os,
|
|
bool shortNames,
|
|
const llvm::Twine &title) {
|
|
return new PrintCFGPass(os, shortNames, title);
|
|
}
|
|
|
|
static PassRegistration<PrintCFGPass> pass("print-cfg-graph",
|
|
"Print CFG graph per function");
|