85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
// Copyright 2022 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_TINT_IR_DISASSEMBLER_H_
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#define SRC_TINT_IR_DISASSEMBLER_H_
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#include <string>
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#include "src/tint/ir/binary.h"
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#include "src/tint/ir/block.h"
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#include "src/tint/ir/call.h"
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#include "src/tint/ir/if.h"
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#include "src/tint/ir/loop.h"
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#include "src/tint/ir/module.h"
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#include "src/tint/ir/switch.h"
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#include "src/tint/ir/unary.h"
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#include "src/tint/utils/hashmap.h"
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#include "src/tint/utils/hashset.h"
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#include "src/tint/utils/string_stream.h"
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namespace tint::ir {
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/// Helper class to disassemble the IR
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class Disassembler {
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public:
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/// Constructor
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/// @param mod the module
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explicit Disassembler(const Module& mod);
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~Disassembler();
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/// Returns the module as a string
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/// @returns the string representation of the module
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std::string Disassemble();
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/// Writes the block instructions to the stream
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/// @param b the block containing the instructions
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void EmitBlockInstructions(const Block* b);
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/// @returns the string representation
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std::string AsString() const { return out_.str(); }
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private:
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utils::StringStream& Indent();
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size_t IdOf(const Block* blk);
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std::string_view IdOf(const Value* node);
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void Walk(const Block* blk);
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void WalkInternal(const Block* blk);
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void EmitFunction(const Function* func);
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void EmitInstruction(const Instruction* inst);
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void EmitValueWithType(const Value* val);
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void EmitValue(const Value* val);
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void EmitArgs(const Call* call);
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void EmitBinary(const Binary* b);
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void EmitUnary(const Unary* b);
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void EmitBranch(const Branch* b);
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void EmitSwitch(const Switch* s);
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void EmitLoop(const Loop* l);
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void EmitIf(const If* i);
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const Module& mod_;
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utils::StringStream out_;
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utils::Hashset<const Block*, 32> visited_;
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utils::Hashmap<const Block*, size_t, 32> block_ids_;
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utils::Hashmap<const Value*, std::string, 32> value_ids_;
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uint32_t indent_size_ = 0;
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bool in_function_ = false;
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};
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} // namespace tint::ir
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#endif // SRC_TINT_IR_DISASSEMBLER_H_
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