mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-01 23:40:04 +00:00
d35a78db57
Fixes #4960 * Switches to using enum classes with an underlying type to avoid undefined behaviour
114 lines
4.1 KiB
C++
114 lines
4.1 KiB
C++
// Copyright (c) 2017 Google Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Validates correctness of derivative SPIR-V instructions.
|
|
|
|
#include "source/val/validate.h"
|
|
|
|
#include <string>
|
|
|
|
#include "source/diagnostic.h"
|
|
#include "source/opcode.h"
|
|
#include "source/val/instruction.h"
|
|
#include "source/val/validation_state.h"
|
|
|
|
namespace spvtools {
|
|
namespace val {
|
|
|
|
// Validates correctness of derivative instructions.
|
|
spv_result_t DerivativesPass(ValidationState_t& _, const Instruction* inst) {
|
|
const spv::Op opcode = inst->opcode();
|
|
const uint32_t result_type = inst->type_id();
|
|
|
|
switch (opcode) {
|
|
case spv::Op::OpDPdx:
|
|
case spv::Op::OpDPdy:
|
|
case spv::Op::OpFwidth:
|
|
case spv::Op::OpDPdxFine:
|
|
case spv::Op::OpDPdyFine:
|
|
case spv::Op::OpFwidthFine:
|
|
case spv::Op::OpDPdxCoarse:
|
|
case spv::Op::OpDPdyCoarse:
|
|
case spv::Op::OpFwidthCoarse: {
|
|
if (!_.IsFloatScalarOrVectorType(result_type)) {
|
|
return _.diag(SPV_ERROR_INVALID_DATA, inst)
|
|
<< "Expected Result Type to be float scalar or vector type: "
|
|
<< spvOpcodeString(opcode);
|
|
}
|
|
if (!_.ContainsSizedIntOrFloatType(result_type, spv::Op::OpTypeFloat,
|
|
32)) {
|
|
return _.diag(SPV_ERROR_INVALID_DATA, inst)
|
|
<< "Result type component width must be 32 bits";
|
|
}
|
|
|
|
const uint32_t p_type = _.GetOperandTypeId(inst, 2);
|
|
if (p_type != result_type) {
|
|
return _.diag(SPV_ERROR_INVALID_DATA, inst)
|
|
<< "Expected P type and Result Type to be the same: "
|
|
<< spvOpcodeString(opcode);
|
|
}
|
|
_.function(inst->function()->id())
|
|
->RegisterExecutionModelLimitation([opcode](spv::ExecutionModel model,
|
|
std::string* message) {
|
|
if (model != spv::ExecutionModel::Fragment &&
|
|
model != spv::ExecutionModel::GLCompute) {
|
|
if (message) {
|
|
*message =
|
|
std::string(
|
|
"Derivative instructions require Fragment or GLCompute "
|
|
"execution model: ") +
|
|
spvOpcodeString(opcode);
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
_.function(inst->function()->id())
|
|
->RegisterLimitation([opcode](const ValidationState_t& state,
|
|
const Function* entry_point,
|
|
std::string* message) {
|
|
const auto* models = state.GetExecutionModels(entry_point->id());
|
|
const auto* modes = state.GetExecutionModes(entry_point->id());
|
|
if (models &&
|
|
models->find(spv::ExecutionModel::GLCompute) != models->end() &&
|
|
(!modes ||
|
|
(modes->find(spv::ExecutionMode::DerivativeGroupLinearNV) ==
|
|
modes->end() &&
|
|
modes->find(spv::ExecutionMode::DerivativeGroupQuadsNV) ==
|
|
modes->end()))) {
|
|
if (message) {
|
|
*message = std::string(
|
|
"Derivative instructions require "
|
|
"DerivativeGroupQuadsNV "
|
|
"or DerivativeGroupLinearNV execution mode for "
|
|
"GLCompute execution model: ") +
|
|
spvOpcodeString(opcode);
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return SPV_SUCCESS;
|
|
}
|
|
|
|
} // namespace val
|
|
} // namespace spvtools
|