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https://github.com/KhronosGroup/SPIRV-Tools
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c2013e248b
Currently it is impossible to invalidate the constnat and type manager. However, the compact ids pass changes the ids for the types and constants, which makes them invalid. This change will make them analyses that have to been explicitly marked as preserved by passes. This will allow compact ids to invalidate them. Fixes #2220.
88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
// Copyright (c) 2018 The Khronos Group Inc.
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// Copyright (c) 2018 Valve Corporation
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// Copyright (c) 2018 LunarG Inc.
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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 SOURCE_OPT_PROPAGATE_LINES_PASS_H_
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#define SOURCE_OPT_PROPAGATE_LINES_PASS_H_
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#include "source/opt/function.h"
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#include "source/opt/ir_context.h"
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#include "source/opt/pass.h"
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namespace spvtools {
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namespace opt {
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namespace {
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// Constructor Parameters
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static const int kLinesPropagateLines = 0;
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static const int kLinesEliminateDeadLines = 1;
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} // anonymous namespace
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// See optimizer.hpp for documentation.
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class ProcessLinesPass : public Pass {
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using LineProcessFunction =
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std::function<bool(Instruction*, uint32_t*, uint32_t*, uint32_t*)>;
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public:
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ProcessLinesPass(uint32_t func_id);
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~ProcessLinesPass() override = default;
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const char* name() const override { return "propagate-lines"; }
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// See optimizer.hpp for this pass' user documentation.
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Status Process() override;
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IRContext::Analysis GetPreservedAnalyses() override {
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return IRContext::kAnalysisDefUse |
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IRContext::kAnalysisInstrToBlockMapping |
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IRContext::kAnalysisDecorations | IRContext::kAnalysisCombinators |
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IRContext::kAnalysisCFG | IRContext::kAnalysisDominatorAnalysis |
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IRContext::kAnalysisNameMap | IRContext::kAnalysisConstants |
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IRContext::kAnalysisTypes;
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}
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private:
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// If |inst| has no debug line instruction, create one with
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// |file_id, line, col|. If |inst| has debug line instructions, set
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// |file_id, line, col| from the last. |file_id| equals 0 indicates no line
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// info is available. Return true if |inst| modified.
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bool PropagateLine(Instruction* inst, uint32_t* file_id, uint32_t* line,
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uint32_t* col);
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// If last debug line instruction of |inst| matches |file_id, line, col|,
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// delete all debug line instructions of |inst|. If they do not match,
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// replace all debug line instructions of |inst| with new line instruction
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// set from |file_id, line, col|. If |inst| has no debug line instructions,
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// do not modify |inst|. |file_id| equals 0 indicates no line info is
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// available. Return true if |inst| modified.
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bool EliminateDeadLines(Instruction* inst, uint32_t* file_id, uint32_t* line,
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uint32_t* col);
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// Apply lpfn() to all type, constant, global variable and function
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// instructions in their physical order.
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bool ProcessLines();
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// A function that calls either PropagateLine or EliminateDeadLines.
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// Initialized by the class constructor.
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LineProcessFunction line_process_func_;
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};
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} // namespace opt
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} // namespace spvtools
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#endif // SOURCE_OPT_PROPAGATE_LINES_PASS_H_
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