-
Notifications
You must be signed in to change notification settings - Fork 89
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #33 from DataDog/elijah/1.3.4
Update vendored zstd c lib to 1.3.4
- Loading branch information
Showing
39 changed files
with
6,619 additions
and
2,976 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,216 @@ | ||
| /* | ||
| * Copyright (c) 2018-present, Facebook, Inc. | ||
| * All rights reserved. | ||
| * | ||
| * This source code is licensed under both the BSD-style license (found in the | ||
| * LICENSE file in the root directory of this source tree) and the GPLv2 (found | ||
| * in the COPYING file in the root directory of this source tree). | ||
| * You may select, at your option, one of the above-listed licenses. | ||
| */ | ||
|
|
||
| #ifndef ZSTD_COMMON_CPU_H | ||
| #define ZSTD_COMMON_CPU_H | ||
|
|
||
| /** | ||
| * Implementation taken from folly/CpuId.h | ||
| * https://github.com/facebook/folly/blob/master/folly/CpuId.h | ||
| */ | ||
|
|
||
| #include <string.h> | ||
|
|
||
| #include "mem.h" | ||
|
|
||
| #ifdef _MSC_VER | ||
| #include <intrin.h> | ||
| #endif | ||
|
|
||
| typedef struct { | ||
| U32 f1c; | ||
| U32 f1d; | ||
| U32 f7b; | ||
| U32 f7c; | ||
| } ZSTD_cpuid_t; | ||
|
|
||
| MEM_STATIC ZSTD_cpuid_t ZSTD_cpuid(void) { | ||
| U32 f1c = 0; | ||
| U32 f1d = 0; | ||
| U32 f7b = 0; | ||
| U32 f7c = 0; | ||
| #ifdef _MSC_VER | ||
| int reg[4]; | ||
| __cpuid((int*)reg, 0); | ||
| { | ||
| int const n = reg[0]; | ||
| if (n >= 1) { | ||
| __cpuid((int*)reg, 1); | ||
| f1c = (U32)reg[2]; | ||
| f1d = (U32)reg[3]; | ||
| } | ||
| if (n >= 7) { | ||
| __cpuidex((int*)reg, 7, 0); | ||
| f7b = (U32)reg[1]; | ||
| f7c = (U32)reg[2]; | ||
| } | ||
| } | ||
| #elif defined(__i386__) && defined(__PIC__) && !defined(__clang__) && defined(__GNUC__) | ||
| /* The following block like the normal cpuid branch below, but gcc | ||
| * reserves ebx for use of its pic register so we must specially | ||
| * handle the save and restore to avoid clobbering the register | ||
| */ | ||
| U32 n; | ||
| __asm__( | ||
| "pushl %%ebx\n\t" | ||
| "cpuid\n\t" | ||
| "popl %%ebx\n\t" | ||
| : "=a"(n) | ||
| : "a"(0) | ||
| : "ecx", "edx"); | ||
| if (n >= 1) { | ||
| U32 f1a; | ||
| __asm__( | ||
| "pushl %%ebx\n\t" | ||
| "cpuid\n\t" | ||
| "popl %%ebx\n\t" | ||
| : "=a"(f1a), "=c"(f1c), "=d"(f1d) | ||
| : "a"(1) | ||
| :); | ||
| } | ||
| if (n >= 7) { | ||
| __asm__( | ||
| "pushl %%ebx\n\t" | ||
| "cpuid\n\t" | ||
| "movl %%ebx, %%eax\n\r" | ||
| "popl %%ebx" | ||
| : "=a"(f7b), "=c"(f7c) | ||
| : "a"(7), "c"(0) | ||
| : "edx"); | ||
| } | ||
| #elif defined(__x86_64__) || defined(_M_X64) || defined(__i386__) | ||
| U32 n; | ||
| __asm__("cpuid" : "=a"(n) : "a"(0) : "ebx", "ecx", "edx"); | ||
| if (n >= 1) { | ||
| U32 f1a; | ||
| __asm__("cpuid" : "=a"(f1a), "=c"(f1c), "=d"(f1d) : "a"(1) : "ebx"); | ||
| } | ||
| if (n >= 7) { | ||
| U32 f7a; | ||
| __asm__("cpuid" | ||
| : "=a"(f7a), "=b"(f7b), "=c"(f7c) | ||
| : "a"(7), "c"(0) | ||
| : "edx"); | ||
| } | ||
| #endif | ||
| { | ||
| ZSTD_cpuid_t cpuid; | ||
| cpuid.f1c = f1c; | ||
| cpuid.f1d = f1d; | ||
| cpuid.f7b = f7b; | ||
| cpuid.f7c = f7c; | ||
| return cpuid; | ||
| } | ||
| } | ||
|
|
||
| #define X(name, r, bit) \ | ||
| MEM_STATIC int ZSTD_cpuid_##name(ZSTD_cpuid_t const cpuid) { \ | ||
| return ((cpuid.r) & (1U << bit)) != 0; \ | ||
| } | ||
|
|
||
| /* cpuid(1): Processor Info and Feature Bits. */ | ||
| #define C(name, bit) X(name, f1c, bit) | ||
| C(sse3, 0) | ||
| C(pclmuldq, 1) | ||
| C(dtes64, 2) | ||
| C(monitor, 3) | ||
| C(dscpl, 4) | ||
| C(vmx, 5) | ||
| C(smx, 6) | ||
| C(eist, 7) | ||
| C(tm2, 8) | ||
| C(ssse3, 9) | ||
| C(cnxtid, 10) | ||
| C(fma, 12) | ||
| C(cx16, 13) | ||
| C(xtpr, 14) | ||
| C(pdcm, 15) | ||
| C(pcid, 17) | ||
| C(dca, 18) | ||
| C(sse41, 19) | ||
| C(sse42, 20) | ||
| C(x2apic, 21) | ||
| C(movbe, 22) | ||
| C(popcnt, 23) | ||
| C(tscdeadline, 24) | ||
| C(aes, 25) | ||
| C(xsave, 26) | ||
| C(osxsave, 27) | ||
| C(avx, 28) | ||
| C(f16c, 29) | ||
| C(rdrand, 30) | ||
| #undef C | ||
| #define D(name, bit) X(name, f1d, bit) | ||
| D(fpu, 0) | ||
| D(vme, 1) | ||
| D(de, 2) | ||
| D(pse, 3) | ||
| D(tsc, 4) | ||
| D(msr, 5) | ||
| D(pae, 6) | ||
| D(mce, 7) | ||
| D(cx8, 8) | ||
| D(apic, 9) | ||
| D(sep, 11) | ||
| D(mtrr, 12) | ||
| D(pge, 13) | ||
| D(mca, 14) | ||
| D(cmov, 15) | ||
| D(pat, 16) | ||
| D(pse36, 17) | ||
| D(psn, 18) | ||
| D(clfsh, 19) | ||
| D(ds, 21) | ||
| D(acpi, 22) | ||
| D(mmx, 23) | ||
| D(fxsr, 24) | ||
| D(sse, 25) | ||
| D(sse2, 26) | ||
| D(ss, 27) | ||
| D(htt, 28) | ||
| D(tm, 29) | ||
| D(pbe, 31) | ||
| #undef D | ||
|
|
||
| /* cpuid(7): Extended Features. */ | ||
| #define B(name, bit) X(name, f7b, bit) | ||
| B(bmi1, 3) | ||
| B(hle, 4) | ||
| B(avx2, 5) | ||
| B(smep, 7) | ||
| B(bmi2, 8) | ||
| B(erms, 9) | ||
| B(invpcid, 10) | ||
| B(rtm, 11) | ||
| B(mpx, 14) | ||
| B(avx512f, 16) | ||
| B(avx512dq, 17) | ||
| B(rdseed, 18) | ||
| B(adx, 19) | ||
| B(smap, 20) | ||
| B(avx512ifma, 21) | ||
| B(pcommit, 22) | ||
| B(clflushopt, 23) | ||
| B(clwb, 24) | ||
| B(avx512pf, 26) | ||
| B(avx512er, 27) | ||
| B(avx512cd, 28) | ||
| B(sha, 29) | ||
| B(avx512bw, 30) | ||
| B(avx512vl, 31) | ||
| #undef B | ||
| #define C(name, bit) X(name, f7c, bit) | ||
| C(prefetchwt1, 0) | ||
| C(avx512vbmi, 1) | ||
| #undef C | ||
|
|
||
| #undef X | ||
|
|
||
| #endif /* ZSTD_COMMON_CPU_H */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.