mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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81 lines
3.2 KiB
C++
81 lines
3.2 KiB
C++
// Copyright (c) 2016 Google Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and/or associated documentation files (the
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// "Materials"), to deal in the Materials without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Materials, and to
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// permit persons to whom the Materials are furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Materials.
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//
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// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
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// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
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// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
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// https://www.khronos.org/registry/
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//
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// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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#ifndef LIBSPIRV_OPT_PASSES_H_
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#define LIBSPIRV_OPT_PASSES_H_
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#include <memory>
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#include "module.h"
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#include "pass.h"
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namespace spvtools {
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namespace opt {
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// A null pass that does nothing.
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class NullPass : public Pass {
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const char* name() const override { return "null"; }
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bool Process(ir::Module*) override { return false; }
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};
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// The optimization pass for removing debug instructions (as documented in
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// Section 3.32.2 of the SPIR-V spec).
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class StripDebugInfoPass : public Pass {
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public:
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const char* name() const override { return "strip-debug"; }
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bool Process(ir::Module* module) override;
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};
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// The transformation pass that specializes the value of spec constants to
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// their default values. This pass only processes the spec constants that have
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// Spec ID decorations (defined by OpSpecConstant, OpSpecConstantTrue and
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// OpSpecConstantFalse instructions) and replaces them with their front-end
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// version counterparts (OpConstant, OpConstantTrue and OpConstantFalse). The
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// corresponding Spec ID annotation instructions will also be removed. This
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// pass does not fold the newly added front-end constants and does not process
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// other spec constants defined by OpSpecConstantComposite or OpSpecConstantOp.
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class FreezeSpecConstantValuePass : public Pass {
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public:
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const char* name() const override { return "freeze-spec-const"; }
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bool Process(ir::Module*) override;
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};
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// The optimization pass to remove dead constants, including front-end
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// contants: defined by OpConstant, OpConstantComposite, OpConstantTrue and
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// OpConstantFalse; and spec constants: defined by OpSpecConstant,
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// OpSpecConstantComposite, OpSpecConstantTrue, OpSpecConstantFalse and
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// OpSpecConstantOp.
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class EliminateDeadConstantPass : public Pass {
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public:
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const char* name() const override { return "eliminate-dead-const"; }
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bool Process(ir::Module*) override;
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};
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} // namespace opt
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_PASSES_H_
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