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baaf989452
This Cl adds function variables to the SPIR-V output. This requires some refactoring to split function instructions and variables apart in the builder. Bug: tint:5 Change-Id: I4d0045f5a02311cf9a2803929c66c648278e3734 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18600 Reviewed-by: David Neto <dneto@google.com>
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// Copyright 2020 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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#include "src/writer/spirv/function.h"
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namespace tint {
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namespace writer {
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namespace spirv {
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Function::Function()
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: declaration_(Instruction{spv::Op::OpNop, {}}),
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label_op_(Operand::Int(0)) {}
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Function::Function(const Instruction& declaration,
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const Operand& label_op,
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const std::vector<Instruction>& params)
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: declaration_(declaration), label_op_(label_op), params_(params) {}
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Function::~Function() = default;
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void Function::iterate(std::function<void(const Instruction&)> cb) const {
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cb(declaration_);
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for (const auto& param : params_) {
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cb(param);
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}
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cb(Instruction{spv::Op::OpLabel, {label_op_}});
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for (const auto& var : vars_) {
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cb(var);
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}
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for (const auto& inst : instructions_) {
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cb(inst);
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}
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cb(Instruction{spv::Op::OpFunctionEnd, {}});
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}
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} // namespace spirv
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} // namespace writer
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} // namespace tint
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