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Unified Diff: Modules/_blake2/impl/blake2-config.h

Issue 26798: add BLAKE2 to hashlib
Patch Set: Created 3 years, 2 months ago
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new file mode 100644
index 0000000000000000000000000000000000000000..40455b120ff0512d7bf26be21993da0beb67e1dc
--- /dev/null
+++ b/Modules/_blake2/impl/blake2-config.h
@@ -0,0 +1,74 @@
+/*
+ BLAKE2 reference source code package - optimized C implementations
+
+ Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
+ terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
+ your option. The terms of these licenses can be found at:
+
+ - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
+ - OpenSSL license : https://www.openssl.org/source/license.html
+ - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
+
+ More information about the BLAKE2 hash function can be found at
+ https://blake2.net.
+*/
+#pragma once
+#ifndef __BLAKE2_CONFIG_H__
+#define __BLAKE2_CONFIG_H__
+
+/* These don't work everywhere */
+#if defined(__SSE2__) || defined(__x86_64__) || defined(__amd64__)
+#define HAVE_SSE2
+#endif
+
+#if defined(__SSSE3__)
+#define HAVE_SSSE3
+#endif
+
+#if defined(__SSE4_1__)
+#define HAVE_SSE41
+#endif
+
+#if defined(__AVX__)
+#define HAVE_AVX
+#endif
+
+#if defined(__XOP__)
+#define HAVE_XOP
+#endif
+
+
+#ifdef HAVE_AVX2
+#ifndef HAVE_AVX
+#define HAVE_AVX
+#endif
+#endif
+
+#ifdef HAVE_XOP
+#ifndef HAVE_AVX
+#define HAVE_AVX
+#endif
+#endif
+
+#ifdef HAVE_AVX
+#ifndef HAVE_SSE41
+#define HAVE_SSE41
+#endif
+#endif
+
+#ifdef HAVE_SSE41
+#ifndef HAVE_SSSE3
+#define HAVE_SSSE3
+#endif
+#endif
+
+#ifdef HAVE_SSSE3
+#define HAVE_SSE2
+#endif
+
+#if !defined(HAVE_SSE2)
+#error "This code requires at least SSE2."
+#endif
+
+#endif
+
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