mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 15:00:06 +00:00
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
// Copyright (c) 2017 Google 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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// Validates correctness of derivative SPIR-V instructions.
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#include "validate.h"
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#include "diagnostic.h"
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#include "opcode.h"
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#include "val/instruction.h"
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#include "val/validation_state.h"
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namespace libspirv {
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// Validates correctness of derivative instructions.
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spv_result_t DerivativesPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst) {
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const SpvOp opcode = static_cast<SpvOp>(inst->opcode);
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const uint32_t result_type = inst->type_id;
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switch (opcode) {
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case SpvOpDPdx:
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case SpvOpDPdy:
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case SpvOpFwidth:
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case SpvOpDPdxFine:
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case SpvOpDPdyFine:
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case SpvOpFwidthFine:
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case SpvOpDPdxCoarse:
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case SpvOpDPdyCoarse:
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case SpvOpFwidthCoarse: {
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if (!_.IsFloatScalarOrVectorType(result_type)) {
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Result Type to be float scalar or vector type: "
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<< spvOpcodeString(opcode);
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}
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const uint32_t p_type = _.GetOperandTypeId(inst, 2);
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if (p_type != result_type) {
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected P type and Result Type to be the same: "
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<< spvOpcodeString(opcode);
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}
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// All derivative opcodes require Fragment execution model.
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// This needs to be checked elsewhere.
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break;
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}
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default:
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break;
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}
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return SPV_SUCCESS;
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}
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} // namespace libspirv
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