diff options
Diffstat (limited to 'cpu_features.c')
| -rw-r--r-- | cpu_features.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/cpu_features.c b/cpu_features.c index 70f01be..877d5f2 100644 --- a/cpu_features.c +++ b/cpu_features.c @@ -1,6 +1,6 @@ /* cpu_features.c -- Processor features detection. * - * Copyright 2018 The Chromium Authors. All rights reserved. + * Copyright 2018 The Chromium Authors * Use of this source code is governed by a BSD-style license that can be * found in the Chromium source repository LICENSE file. */ @@ -18,13 +18,16 @@ /* TODO(cavalcantii): remove checks for x86_flags on deflate. */ #if defined(ARMV8_OS_MACOS) -/* crc32 is a baseline feature in ARMv8.1-A, and macOS running on arm64 is new - * enough that this can be assumed without runtime detection. */ +/* Crypto extensions (crc32/pmull) are a baseline feature in ARMv8.1-A, and + * OSX running on arm64 is new enough that these can be assumed without + * runtime detection. + */ int ZLIB_INTERNAL arm_cpu_enable_crc32 = 1; +int ZLIB_INTERNAL arm_cpu_enable_pmull = 1; #else int ZLIB_INTERNAL arm_cpu_enable_crc32 = 0; -#endif int ZLIB_INTERNAL arm_cpu_enable_pmull = 0; +#endif int ZLIB_INTERNAL x86_cpu_enable_sse2 = 0; int ZLIB_INTERNAL x86_cpu_enable_ssse3 = 0; int ZLIB_INTERNAL x86_cpu_enable_simd = 0; |