/src/spirv-tools/source/parsed_operand.cpp
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1 | | // Copyright (c) 2016 Google Inc. |
2 | | // |
3 | | // Licensed under the Apache License, Version 2.0 (the "License"); |
4 | | // you may not use this file except in compliance with the License. |
5 | | // You may obtain a copy of the License at |
6 | | // |
7 | | // http://www.apache.org/licenses/LICENSE-2.0 |
8 | | // |
9 | | // Unless required by applicable law or agreed to in writing, software |
10 | | // distributed under the License is distributed on an "AS IS" BASIS, |
11 | | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | | // See the License for the specific language governing permissions and |
13 | | // limitations under the License. |
14 | | |
15 | | // This file contains utility functions for spv_parsed_operand_t. |
16 | | |
17 | | #include "source/parsed_operand.h" |
18 | | |
19 | | #include <cassert> |
20 | | #include "source/util/hex_float.h" |
21 | | |
22 | | namespace spvtools { |
23 | | |
24 | | void EmitNumericLiteral(std::ostream* out, const spv_parsed_instruction_t& inst, |
25 | 143k | const spv_parsed_operand_t& operand) { |
26 | 143k | if (operand.type != SPV_OPERAND_TYPE_LITERAL_INTEGER && |
27 | 143k | operand.type != SPV_OPERAND_TYPE_LITERAL_FLOAT && |
28 | 143k | operand.type != SPV_OPERAND_TYPE_TYPED_LITERAL_NUMBER && |
29 | 143k | operand.type != SPV_OPERAND_TYPE_OPTIONAL_LITERAL_INTEGER && |
30 | 143k | operand.type != SPV_OPERAND_TYPE_OPTIONAL_TYPED_LITERAL_INTEGER) |
31 | 0 | return; |
32 | 143k | if (operand.num_words < 1) return; |
33 | | // TODO(dneto): Support more than 64-bits at a time. |
34 | 142k | if (operand.num_words > 2) return; |
35 | | |
36 | 142k | const uint32_t word = inst.words[operand.offset]; |
37 | 142k | if (operand.num_words == 1) { |
38 | 141k | switch (operand.number_kind) { |
39 | 32.0k | case SPV_NUMBER_SIGNED_INT: |
40 | 32.0k | *out << int32_t(word); |
41 | 32.0k | break; |
42 | 93.4k | case SPV_NUMBER_UNSIGNED_INT: |
43 | 93.4k | *out << word; |
44 | 93.4k | break; |
45 | 16.3k | case SPV_NUMBER_FLOATING: |
46 | 16.3k | switch (operand.fp_encoding) { |
47 | 0 | case SPV_FP_ENCODING_IEEE754_BINARY16: |
48 | 0 | *out << spvtools::utils::FloatProxy<spvtools::utils::Float16>( |
49 | 0 | uint16_t(word & 0xFFFF)); |
50 | 0 | break; |
51 | 0 | case SPV_FP_ENCODING_IEEE754_BINARY32: |
52 | 0 | *out << spvtools::utils::FloatProxy<float>(word); |
53 | 0 | break; |
54 | 0 | case SPV_FP_ENCODING_FLOAT8_E4M3: |
55 | 0 | *out << spvtools::utils::FloatProxy<spvtools::utils::Float8_E4M3>( |
56 | 0 | uint8_t(word & 0xFF)); |
57 | 0 | break; |
58 | 0 | case SPV_FP_ENCODING_FLOAT8_E5M2: |
59 | 0 | *out << spvtools::utils::FloatProxy<spvtools::utils::Float8_E5M2>( |
60 | 0 | uint8_t(word & 0xFF)); |
61 | 0 | break; |
62 | | // TODO Bfloat16 |
63 | 16.2k | case SPV_FP_ENCODING_UNKNOWN: |
64 | 16.2k | switch (operand.number_bit_width) { |
65 | 933 | case 16: |
66 | 933 | *out << spvtools::utils::FloatProxy<spvtools::utils::Float16>( |
67 | 933 | uint16_t(word & 0xFFFF)); |
68 | 933 | break; |
69 | 14.5k | case 32: |
70 | 14.5k | *out << spvtools::utils::FloatProxy<float>(word); |
71 | 14.5k | break; |
72 | 16.2k | } |
73 | 16.3k | default: |
74 | 16.3k | break; |
75 | 16.3k | } |
76 | 16.3k | break; |
77 | 16.3k | default: |
78 | 0 | break; |
79 | 141k | } |
80 | 141k | } else if (operand.num_words == 2) { |
81 | | // Multi-word numbers are presented with lower order words first. |
82 | 798 | uint64_t bits = |
83 | 798 | uint64_t(word) | (uint64_t(inst.words[operand.offset + 1]) << 32); |
84 | 798 | switch (operand.number_kind) { |
85 | 239 | case SPV_NUMBER_SIGNED_INT: |
86 | 239 | *out << int64_t(bits); |
87 | 239 | break; |
88 | 240 | case SPV_NUMBER_UNSIGNED_INT: |
89 | 240 | *out << bits; |
90 | 240 | break; |
91 | 319 | case SPV_NUMBER_FLOATING: |
92 | | // Assume only 64-bit floats. |
93 | 319 | *out << spvtools::utils::FloatProxy<double>(bits); |
94 | 319 | break; |
95 | 0 | default: |
96 | 0 | break; |
97 | 798 | } |
98 | 798 | } |
99 | 142k | } |
100 | | } // namespace spvtools |