SPIRV-Tools/source/opt/function.cpp
Diego Novillo 4a4632264e Add IR dumping functions to use during debugging.
When using lldb and/or gdb I frequently get odd std::string failures
when using the IR printing instructions we have now.  This adds the
methods  Instruction::Dump(), BasicBlock::Dump() and Function::Dump() to
emit the output of the pretty print to stderr.

With this I can now reliably print IR from gdb and lldb sessions.
2018-09-14 14:28:34 -04:00

114 lines
3.6 KiB
C++

// Copyright (c) 2016 Google Inc.
//
// 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 "source/opt/function.h"
#include <ostream>
#include <sstream>
namespace spvtools {
namespace opt {
Function* Function::Clone(IRContext* ctx) const {
Function* clone =
new Function(std::unique_ptr<Instruction>(DefInst().Clone(ctx)));
clone->params_.reserve(params_.size());
ForEachParam(
[clone, ctx](const Instruction* inst) {
clone->AddParameter(std::unique_ptr<Instruction>(inst->Clone(ctx)));
},
true);
clone->blocks_.reserve(blocks_.size());
for (const auto& b : blocks_) {
std::unique_ptr<BasicBlock> bb(b->Clone(ctx));
bb->SetParent(clone);
clone->AddBasicBlock(std::move(bb));
}
clone->SetFunctionEnd(std::unique_ptr<Instruction>(EndInst()->Clone(ctx)));
return clone;
}
void Function::ForEachInst(const std::function<void(Instruction*)>& f,
bool run_on_debug_line_insts) {
if (def_inst_) def_inst_->ForEachInst(f, run_on_debug_line_insts);
for (auto& param : params_) param->ForEachInst(f, run_on_debug_line_insts);
for (auto& bb : blocks_) bb->ForEachInst(f, run_on_debug_line_insts);
if (end_inst_) end_inst_->ForEachInst(f, run_on_debug_line_insts);
}
void Function::ForEachInst(const std::function<void(const Instruction*)>& f,
bool run_on_debug_line_insts) const {
if (def_inst_)
static_cast<const Instruction*>(def_inst_.get())
->ForEachInst(f, run_on_debug_line_insts);
for (const auto& param : params_)
static_cast<const Instruction*>(param.get())
->ForEachInst(f, run_on_debug_line_insts);
for (const auto& bb : blocks_)
static_cast<const BasicBlock*>(bb.get())->ForEachInst(
f, run_on_debug_line_insts);
if (end_inst_)
static_cast<const Instruction*>(end_inst_.get())
->ForEachInst(f, run_on_debug_line_insts);
}
void Function::ForEachParam(const std::function<void(const Instruction*)>& f,
bool run_on_debug_line_insts) const {
for (const auto& param : params_)
static_cast<const Instruction*>(param.get())
->ForEachInst(f, run_on_debug_line_insts);
}
BasicBlock* Function::InsertBasicBlockAfter(
std::unique_ptr<BasicBlock>&& new_block, BasicBlock* position) {
for (auto bb_iter = begin(); bb_iter != end(); ++bb_iter) {
if (&*bb_iter == position) {
new_block->SetParent(this);
++bb_iter;
bb_iter = bb_iter.InsertBefore(std::move(new_block));
return &*bb_iter;
}
}
assert(false && "Could not find insertion point.");
return nullptr;
}
std::ostream& operator<<(std::ostream& str, const Function& func) {
str << func.PrettyPrint();
return str;
}
void Function::Dump() const {
std::cerr << "Function #" << result_id() << "\n" << *this << "\n";
}
std::string Function::PrettyPrint(uint32_t options) const {
std::ostringstream str;
ForEachInst([&str, options](const Instruction* inst) {
str << inst->PrettyPrint(options);
if (inst->opcode() != SpvOpFunctionEnd) {
str << std::endl;
}
});
return str.str();
}
} // namespace opt
} // namespace spvtools