1 | /* |
2 | * Copyright (c) 2015-2017, Intel Corporation |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * |
7 | * * Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
9 | * * Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * * Neither the name of Intel Corporation nor the names of its contributors |
13 | * may be used to endorse or promote products derived from this software |
14 | * without specific prior written permission. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | |
30 | #include "hs_compile.h" // for various hs_platform_info flags |
31 | #include "target_info.h" |
32 | #include "util/cpuid_flags.h" |
33 | |
34 | namespace ue2 { |
35 | |
36 | target_t get_current_target(void) { |
37 | hs_platform_info p; |
38 | p.cpu_features = cpuid_flags(); |
39 | p.tune = cpuid_tune(); |
40 | |
41 | return target_t(p); |
42 | } |
43 | |
44 | bool target_t::can_run_on_code_built_for(const target_t &code_target) const { |
45 | if (!has_avx2() && code_target.has_avx2()) { |
46 | return false; |
47 | } |
48 | |
49 | if (!has_avx512() && code_target.has_avx512()) { |
50 | return false; |
51 | } |
52 | |
53 | return true; |
54 | } |
55 | |
56 | target_t::target_t(const hs_platform_info &p) |
57 | : tune(p.tune), cpu_features(p.cpu_features) {} |
58 | |
59 | bool target_t::has_avx2(void) const { |
60 | return cpu_features & HS_CPU_FEATURES_AVX2; |
61 | } |
62 | |
63 | bool target_t::has_avx512(void) const { |
64 | return cpu_features & HS_CPU_FEATURES_AVX512; |
65 | } |
66 | |
67 | bool target_t::is_atom_class(void) const { |
68 | return tune == HS_TUNE_FAMILY_SLM || tune == HS_TUNE_FAMILY_GLM; |
69 | } |
70 | |
71 | } // namespace ue2 |
72 | |