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// 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 bitwise instructions.
#include "source/diagnostic.h"
#include "source/opcode.h"
#include "source/spirv_target_env.h"
#include "source/val/instruction.h"
#include "source/val/validate.h"
#include "source/val/validation_state.h"
namespace spvtools {
namespace val {
// Validates when base and result need to be the same type
spv_result_t ValidateBaseType(ValidationState_t& _, const Instruction* inst,
const uint32_t base_type) {
const SpvOp opcode = inst->opcode();
if (!_.IsIntScalarType(base_type) && !_.IsIntVectorType(base_type)) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< _.VkErrorID(4781)
<< "Expected int scalar or vector type for Base operand: "
<< spvOpcodeString(opcode);
}
// Vulkan has a restriction to 32 bit for base
if (spvIsVulkanEnv(_.context()->target_env)) {
if (_.GetBitWidth(base_type) != 32) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< _.VkErrorID(4781)
<< "Expected 32-bit int type for Base operand: "
<< spvOpcodeString(opcode);
}
}
// OpBitCount just needs same number of components
if (base_type != inst->type_id() && opcode != SpvOpBitCount) {
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Base Type to be equal to Result Type: "
<< spvOpcodeString(opcode);
}
return SPV_SUCCESS;
}
// Validates correctness of bitwise instructions.
spv_result_t BitwisePass(ValidationState_t& _, const Instruction* inst) {
const SpvOp opcode = inst->opcode();
const uint32_t result_type = inst->type_id();
switch (opcode) {
case SpvOpShiftRightLogical:
case SpvOpShiftRightArithmetic:
case SpvOpShiftLeftLogical: {
if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected int scalar or vector type as Result Type: "
<< spvOpcodeString(opcode);
const uint32_t result_dimension = _.GetDimension(result_type);
const uint32_t base_type = _.GetOperandTypeId(inst, 2);
const uint32_t shift_type = _.GetOperandTypeId(inst, 3);
if (!base_type ||
(!_.IsIntScalarType(base_type) && !_.IsIntVectorType(base_type)))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Base to be int scalar or vector: "
<< spvOpcodeString(opcode);
if (_.GetDimension(base_type) != result_dimension)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Base to have the same dimension "
<< "as Result Type: " << spvOpcodeString(opcode);
if (_.GetBitWidth(base_type) != _.GetBitWidth(result_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Base to have the same bit width "
<< "as Result Type: " << spvOpcodeString(opcode);
if (!shift_type ||
(!_.IsIntScalarType(shift_type) && !_.IsIntVectorType(shift_type)))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Shift to be int scalar or vector: "
<< spvOpcodeString(opcode);
if (_.GetDimension(shift_type) != result_dimension)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Shift to have the same dimension "
<< "as Result Type: " << spvOpcodeString(opcode);
break;
}
case SpvOpBitwiseOr:
case SpvOpBitwiseXor:
case SpvOpBitwiseAnd:
case SpvOpNot: {
if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected int scalar or vector type as Result Type: "
<< spvOpcodeString(opcode);
const uint32_t result_dimension = _.GetDimension(result_type);
const uint32_t result_bit_width = _.GetBitWidth(result_type);
for (size_t operand_index = 2; operand_index < inst->operands().size();
++operand_index) {
const uint32_t type_id = _.GetOperandTypeId(inst, operand_index);
if (!type_id ||
(!_.IsIntScalarType(type_id) && !_.IsIntVectorType(type_id)))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected int scalar or vector as operand: "
<< spvOpcodeString(opcode) << " operand index "
<< operand_index;
if (_.GetDimension(type_id) != result_dimension)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected operands to have the same dimension "
<< "as Result Type: " << spvOpcodeString(opcode)
<< " operand index " << operand_index;
if (_.GetBitWidth(type_id) != result_bit_width)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected operands to have the same bit width "
<< "as Result Type: " << spvOpcodeString(opcode)
<< " operand index " << operand_index;
}
break;
}
case SpvOpBitFieldInsert: {
const uint32_t base_type = _.GetOperandTypeId(inst, 2);
const uint32_t insert_type = _.GetOperandTypeId(inst, 3);
const uint32_t offset_type = _.GetOperandTypeId(inst, 4);
const uint32_t count_type = _.GetOperandTypeId(inst, 5);
if (spv_result_t error = ValidateBaseType(_, inst, base_type)) {
return error;
}
if (insert_type != result_type)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Insert Type to be equal to Result Type: "
<< spvOpcodeString(opcode);
if (!offset_type || !_.IsIntScalarType(offset_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Offset Type to be int scalar: "
<< spvOpcodeString(opcode);
if (!count_type || !_.IsIntScalarType(count_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Count Type to be int scalar: "
<< spvOpcodeString(opcode);
break;
}
case SpvOpBitFieldSExtract:
case SpvOpBitFieldUExtract: {
const uint32_t base_type = _.GetOperandTypeId(inst, 2);
const uint32_t offset_type = _.GetOperandTypeId(inst, 3);
const uint32_t count_type = _.GetOperandTypeId(inst, 4);
if (spv_result_t error = ValidateBaseType(_, inst, base_type)) {
return error;
}
if (!offset_type || !_.IsIntScalarType(offset_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Offset Type to be int scalar: "
<< spvOpcodeString(opcode);
if (!count_type || !_.IsIntScalarType(count_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Count Type to be int scalar: "
<< spvOpcodeString(opcode);
break;
}
case SpvOpBitReverse: {
const uint32_t base_type = _.GetOperandTypeId(inst, 2);
if (spv_result_t error = ValidateBaseType(_, inst, base_type)) {
return error;
}
break;
}
case SpvOpBitCount: {
if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected int scalar or vector type as Result Type: "
<< spvOpcodeString(opcode);
const uint32_t base_type = _.GetOperandTypeId(inst, 2);
const uint32_t base_dimension = _.GetDimension(base_type);
const uint32_t result_dimension = _.GetDimension(result_type);
if (spv_result_t error = ValidateBaseType(_, inst, base_type)) {
return error;
}
if (base_dimension != result_dimension)
return _.diag(SPV_ERROR_INVALID_DATA, inst)
<< "Expected Base dimension to be equal to Result Type "
"dimension: "
<< spvOpcodeString(opcode);
break;
}
default:
break;
}
return SPV_SUCCESS;
}
} // namespace val
} // namespace spvtools
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