mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-22 19:50:05 +00:00
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
// 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_LITERAL_FLOAT &&
|
|
operand.type != SPV_OPERAND_TYPE_TYPED_LITERAL_NUMBER &&
|
|
operand.type != SPV_OPERAND_TYPE_OPTIONAL_LITERAL_INTEGER &&
|
|
operand.type != SPV_OPERAND_TYPE_OPTIONAL_TYPED_LITERAL_INTEGER)
|
|
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
|