240 lines
9.1 KiB
C++
240 lines
9.1 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 bitwise 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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namespace {
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// Returns operand word for given instruction and operand index.
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// The operand is expected to only have one word.
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inline uint32_t GetOperandWord(const spv_parsed_instruction_t* inst,
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size_t operand_index) {
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assert(operand_index < inst->num_operands);
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const spv_parsed_operand_t& operand = inst->operands[operand_index];
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assert(operand.num_words == 1);
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return inst->words[operand.offset];
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}
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// Returns the type id of instruction operand at |operand_index|.
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// The operand is expected to be an id.
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inline uint32_t GetOperandTypeId(ValidationState_t& _,
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const spv_parsed_instruction_t* inst,
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size_t operand_index) {
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return _.GetTypeId(GetOperandWord(inst, operand_index));
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}
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} // namespace
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// Validates correctness of bitwise instructions.
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spv_result_t BitwisePass(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 SpvOpShiftRightLogical:
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case SpvOpShiftRightArithmetic:
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case SpvOpShiftLeftLogical: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t result_dimension = _.GetDimension(result_type);
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const uint32_t base_type = GetOperandTypeId(_, inst, 2);
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const uint32_t shift_type = GetOperandTypeId(_, inst, 3);
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if (!base_type ||
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(!_.IsIntScalarType(base_type) && !_.IsIntVectorType(base_type)))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base to be int scalar or vector: "
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<< spvOpcodeString(opcode);
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if (_.GetDimension(base_type) != result_dimension)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base to have the same dimension "
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<< "as Result Type: " << spvOpcodeString(opcode);
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if (_.GetBitWidth(base_type) != _.GetBitWidth(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base to have the same bit width "
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<< "as Result Type: " << spvOpcodeString(opcode);
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if (!shift_type ||
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(!_.IsIntScalarType(shift_type) && !_.IsIntVectorType(shift_type)))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Shift to be int scalar or vector: "
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<< spvOpcodeString(opcode);
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if (_.GetDimension(shift_type) != result_dimension)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Shift to have the same dimension "
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<< "as Result Type: " << spvOpcodeString(opcode);
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break;
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}
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case SpvOpBitwiseOr:
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case SpvOpBitwiseXor:
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case SpvOpBitwiseAnd:
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case SpvOpNot: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t result_dimension = _.GetDimension(result_type);
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const uint32_t result_bit_width = _.GetBitWidth(result_type);
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for (size_t operand_index = 2; operand_index < inst->num_operands;
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++operand_index) {
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const uint32_t type_id = GetOperandTypeId(_, inst, operand_index);
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if (!type_id ||
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(!_.IsIntScalarType(type_id) && !_.IsIntVectorType(type_id)))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector as operand: "
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<< spvOpcodeString(opcode) << " operand index "
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<< operand_index;
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if (_.GetDimension(type_id) != result_dimension)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected operands to have the same dimension "
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<< "as Result Type: " << spvOpcodeString(opcode)
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<< " operand index " << operand_index;
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if (_.GetBitWidth(type_id) != result_bit_width)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected operands to have the same bit width "
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<< "as Result Type: " << spvOpcodeString(opcode)
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<< " operand index " << operand_index;
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}
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break;
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}
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case SpvOpBitFieldInsert: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t base_type = GetOperandTypeId(_, inst, 2);
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const uint32_t insert_type = GetOperandTypeId(_, inst, 3);
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const uint32_t offset_type = GetOperandTypeId(_, inst, 4);
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const uint32_t count_type = GetOperandTypeId(_, inst, 5);
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if (base_type != result_type)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base Type to be equal to Result Type: "
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<< spvOpcodeString(opcode);
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if (insert_type != result_type)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Insert Type to be equal to Result Type: "
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<< spvOpcodeString(opcode);
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if (!offset_type || !_.IsIntScalarType(offset_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Offset Type to be int scalar: "
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<< spvOpcodeString(opcode);
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if (!count_type || !_.IsIntScalarType(count_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Count Type to be int scalar: "
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<< spvOpcodeString(opcode);
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break;
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}
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case SpvOpBitFieldSExtract:
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case SpvOpBitFieldUExtract: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t base_type = GetOperandTypeId(_, inst, 2);
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const uint32_t offset_type = GetOperandTypeId(_, inst, 3);
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const uint32_t count_type = GetOperandTypeId(_, inst, 4);
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if (base_type != result_type)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base Type to be equal to Result Type: "
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<< spvOpcodeString(opcode);
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if (!offset_type || !_.IsIntScalarType(offset_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Offset Type to be int scalar: "
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<< spvOpcodeString(opcode);
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if (!count_type || !_.IsIntScalarType(count_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Count Type to be int scalar: "
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<< spvOpcodeString(opcode);
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break;
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}
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case SpvOpBitReverse: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t base_type = GetOperandTypeId(_, inst, 2);
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if (base_type != result_type)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base Type to be equal to Result Type: "
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<< spvOpcodeString(opcode);
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break;
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}
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case SpvOpBitCount: {
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if (!_.IsIntScalarType(result_type) && !_.IsIntVectorType(result_type))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected int scalar or vector type as Result Type: "
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<< spvOpcodeString(opcode);
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const uint32_t base_type = GetOperandTypeId(_, inst, 2);
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if (!base_type ||
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(!_.IsIntScalarType(base_type) && !_.IsIntVectorType(base_type)))
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base Type to be int scalar or vector: "
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<< spvOpcodeString(opcode);
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const uint32_t base_dimension = _.GetDimension(base_type);
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const uint32_t result_dimension = _.GetDimension(result_type);
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if (base_dimension != result_dimension)
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return _.diag(SPV_ERROR_INVALID_DATA)
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<< "Expected Base dimension to be equal to Result Type "
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"dimension: "
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<< spvOpcodeString(opcode);
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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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