1308e022e1
Some files talk about the MIT license. This code was contributed under CLA and was relicensed to the OpenSSL licence when imported. Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de> (Merged from https://github.com/openssl/openssl/pull/5105)
30 lines
907 B
C
30 lines
907 B
C
/*
|
|
* Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
|
|
* Copyright 2016 Cryptography Research, Inc.
|
|
*
|
|
* Licensed under the OpenSSL license (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*
|
|
* Originally written by Mike Hamburg
|
|
*/
|
|
|
|
#ifndef __ARCH_ARCH_32_ARCH_INTRINSICS_H__
|
|
#define __ARCH_ARCH_32_ARCH_INTRINSICS_H__
|
|
|
|
#define ARCH_WORD_BITS 32
|
|
|
|
static __inline__ __attribute((always_inline,unused))
|
|
uint32_t word_is_zero(uint32_t a) {
|
|
/* let's hope the compiler isn't clever enough to optimize this. */
|
|
return (((uint64_t)a)-1)>>32;
|
|
}
|
|
|
|
static __inline__ __attribute((always_inline,unused))
|
|
uint64_t widemul(uint32_t a, uint32_t b) {
|
|
return ((uint64_t)a) * b;
|
|
}
|
|
|
|
#endif /* __ARCH_ARM_32_ARCH_INTRINSICS_H__ */
|
|
|