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- // Copyright (c) 2016 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.
- // This file contains utility functions for spv_parsed_operand_t.
- #include "source/parsed_operand.h"
- #include <cassert>
- #include "source/util/hex_float.h"
- namespace spvtools {
- void EmitNumericLiteral(std::ostream* out, const spv_parsed_instruction_t& inst,
- const spv_parsed_operand_t& operand) {
- if (operand.type != SPV_OPERAND_TYPE_LITERAL_INTEGER &&
- operand.type != SPV_OPERAND_TYPE_TYPED_LITERAL_NUMBER)
- return;
- if (operand.num_words < 1) return;
- // TODO(dneto): Support more than 64-bits at a time.
- if (operand.num_words > 2) return;
- const uint32_t word = inst.words[operand.offset];
- if (operand.num_words == 1) {
- switch (operand.number_kind) {
- case SPV_NUMBER_SIGNED_INT:
- *out << int32_t(word);
- break;
- case SPV_NUMBER_UNSIGNED_INT:
- *out << word;
- break;
- case SPV_NUMBER_FLOATING:
- if (operand.number_bit_width == 16) {
- *out << spvtools::utils::FloatProxy<spvtools::utils::Float16>(
- uint16_t(word & 0xFFFF));
- } else {
- // Assume 32-bit floats.
- *out << spvtools::utils::FloatProxy<float>(word);
- }
- break;
- default:
- break;
- }
- } else if (operand.num_words == 2) {
- // Multi-word numbers are presented with lower order words first.
- uint64_t bits =
- uint64_t(word) | (uint64_t(inst.words[operand.offset + 1]) << 32);
- switch (operand.number_kind) {
- case SPV_NUMBER_SIGNED_INT:
- *out << int64_t(bits);
- break;
- case SPV_NUMBER_UNSIGNED_INT:
- *out << bits;
- break;
- case SPV_NUMBER_FLOATING:
- // Assume only 64-bit floats.
- *out << spvtools::utils::FloatProxy<double>(bits);
- break;
- default:
- break;
- }
- }
- }
- } // namespace spvtools
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