SPIRV-Tools/source/val/validate_atomics.cpp
2019-01-07 13:19:24 -05:00

230 lines
8.5 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 atomic SPIR-V instructions.
#include "source/val/validate.h"
#include "source/diagnostic.h"
#include "source/opcode.h"
#include "source/spirv_target_env.h"
#include "source/util/bitutils.h"
#include "source/val/instruction.h"
#include "source/val/validate_memory_semantics.h"
#include "source/val/validate_scopes.h"
#include "source/val/validation_state.h"
namespace spvtools {
namespace val {
// Validates correctness of atomic instructions.
spv_result_t AtomicsPass(ValidationState_t& _, const Instruction* inst) {
const SpvOp opcode = inst->opcode();
const uint32_t result_type = inst->type_id();
switch (opcode) {
case SpvOpAtomicLoad:
case SpvOpAtomicStore:
case SpvOpAtomicExchange:
case SpvOpAtomicCompareExchange:
case SpvOpAtomicCompareExchangeWeak:
case SpvOpAtomicIIncrement:
case SpvOpAtomicIDecrement:
case SpvOpAtomicIAdd:
case SpvOpAtomicISub:
case SpvOpAtomicSMin:
case SpvOpAtomicUMin:
case SpvOpAtomicSMax:
case SpvOpAtomicUMax:
case SpvOpAtomicAnd:
case SpvOpAtomicOr:
case SpvOpAtomicXor:
case SpvOpAtomicFlagTestAndSet:
case SpvOpAtomicFlagClear: {
if (_.HasCapability(SpvCapabilityKernel) &&
(opcode == SpvOpAtomicLoad || opcode == SpvOpAtomicExchange ||
opcode == SpvOpAtomicCompareExchange)) {
if (!_.IsFloatScalarType(result_type) &&
!_.IsIntScalarType(result_type)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Result Type to be int or float scalar type";
}
} else if (opcode == SpvOpAtomicFlagTestAndSet) {
if (!_.IsBoolScalarType(result_type)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Result Type to be bool scalar type";
}
} else if (opcode == SpvOpAtomicFlagClear || opcode == SpvOpAtomicStore) {
assert(result_type == 0);
} else {
if (!_.IsIntScalarType(result_type)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Result Type to be int scalar type";
}
if (spvIsVulkanEnv(_.context()->target_env) &&
_.GetBitWidth(result_type) != 32) {
switch (opcode) {
case SpvOpAtomicSMin:
case SpvOpAtomicUMin:
case SpvOpAtomicSMax:
case SpvOpAtomicUMax:
case SpvOpAtomicAnd:
case SpvOpAtomicOr:
case SpvOpAtomicXor:
case SpvOpAtomicIAdd:
case SpvOpAtomicLoad:
case SpvOpAtomicStore:
case SpvOpAtomicExchange:
case SpvOpAtomicCompareExchange: {
if (_.GetBitWidth(result_type) == 64 &&
!_.HasCapability(SpvCapabilityInt64Atomics))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": 64-bit atomics require the Int64Atomics "
"capability";
} break;
default:
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": according to the Vulkan spec atomic Result Type "
"needs "
"to be a 32-bit int scalar type";
}
}
}
uint32_t operand_index =
opcode == SpvOpAtomicFlagClear || opcode == SpvOpAtomicStore ? 0 : 2;
const uint32_t pointer_type = _.GetOperandTypeId(inst, operand_index++);
uint32_t data_type = 0;
uint32_t storage_class = 0;
if (!_.GetPointerTypeInfo(pointer_type, &data_type, &storage_class)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer to be of type OpTypePointer";
}
switch (storage_class) {
case SpvStorageClassUniform:
case SpvStorageClassWorkgroup:
case SpvStorageClassCrossWorkgroup:
case SpvStorageClassGeneric:
case SpvStorageClassAtomicCounter:
case SpvStorageClassImage:
case SpvStorageClassStorageBuffer:
case SpvStorageClassPhysicalStorageBufferEXT:
break;
default:
if (spvIsOpenCLEnv(_.context()->target_env)) {
if (storage_class != SpvStorageClassFunction) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer Storage Class to be Uniform, "
"Workgroup, CrossWorkgroup, Generic, AtomicCounter, "
"Image, StorageBuffer or Function";
}
} else {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer Storage Class to be Uniform, "
"Workgroup, CrossWorkgroup, Generic, AtomicCounter, "
"Image or StorageBuffer";
}
}
if (opcode == SpvOpAtomicFlagTestAndSet ||
opcode == SpvOpAtomicFlagClear) {
if (!_.IsIntScalarType(data_type) || _.GetBitWidth(data_type) != 32) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer to point to a value of 32-bit int type";
}
} else if (opcode == SpvOpAtomicStore) {
if (!_.IsFloatScalarType(data_type) && !_.IsIntScalarType(data_type)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer to be a pointer to int or float "
<< "scalar type";
}
} else {
if (data_type != result_type) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Pointer to point to a value of type Result "
"Type";
}
}
auto memory_scope = inst->GetOperandAs<const uint32_t>(operand_index++);
if (auto error = ValidateMemoryScope(_, inst, memory_scope)) {
return error;
}
if (auto error = ValidateMemorySemantics(_, inst, operand_index++))
return error;
if (opcode == SpvOpAtomicCompareExchange ||
opcode == SpvOpAtomicCompareExchangeWeak) {
if (auto error = ValidateMemorySemantics(_, inst, operand_index++))
return error;
}
if (opcode == SpvOpAtomicStore) {
const uint32_t value_type = _.GetOperandTypeId(inst, 3);
if (value_type != data_type) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Value type and the type pointed to by "
"Pointer to be the same";
}
} else if (opcode != SpvOpAtomicLoad && opcode != SpvOpAtomicIIncrement &&
opcode != SpvOpAtomicIDecrement &&
opcode != SpvOpAtomicFlagTestAndSet &&
opcode != SpvOpAtomicFlagClear) {
const uint32_t value_type = _.GetOperandTypeId(inst, operand_index++);
if (value_type != result_type) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Value to be of type Result Type";
}
}
if (opcode == SpvOpAtomicCompareExchange ||
opcode == SpvOpAtomicCompareExchangeWeak) {
const uint32_t comparator_type =
_.GetOperandTypeId(inst, operand_index++);
if (comparator_type != result_type) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< spvOpcodeString(opcode)
<< ": expected Comparator to be of type Result Type";
}
}
break;
}
default:
break;
}
return SPV_SUCCESS;
}
} // namespace val
} // namespace spvtools