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bn/bn_lcl.h: use __int128 whenever possible, not only on MIPS.

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Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Andy Polyakov 2017-07-27 22:29:06 +02:00
parent 46288370bf
commit 7aca329824
1 changed files with 9 additions and 11 deletions
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20
crypto/bn/bn_lcl.h
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@ -370,7 +370,13 @@ struct bn_gencb_st {
* *
* <appro@fy.chalmers.se> * <appro@fy.chalmers.se>
*/ */
# if defined(__alpha) && (defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT)) # if defined(__SIZEOF_INT128__) && __SIZEOF_INT128__==16 && \
(defined(SIXRY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# define BN_UMULT_HIGH(a,b) (((__uint128_t)(a)*(b))>>64)
# define BN_UMULT_LOHI(low,high,a,b) ({ \
__uint128_t ret=(__uint128_t)(a)*(b); \
(high)=ret>>64; (low)=ret; })
# elif defined(__alpha) && (defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT))
# if defined(__DECC) # if defined(__DECC)
# include <c_asm.h> # include <c_asm.h>
# define BN_UMULT_HIGH(a,b) (BN_ULONG)asm("umulh %a0,%a1,%v0",(a),(b)) # define BN_UMULT_HIGH(a,b) (BN_ULONG)asm("umulh %a0,%a1,%v0",(a),(b))
@ -418,24 +424,16 @@ unsigned __int64 _umul128(unsigned __int64 a, unsigned __int64 b,
# endif # endif
# elif defined(__mips) && (defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG)) # elif defined(__mips) && (defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# if defined(__GNUC__) && __GNUC__>=2 # if defined(__GNUC__) && __GNUC__>=2
# if defined(__SIZEOF_INT128__) && __SIZEOF_INT128__==16 # define BN_UMULT_HIGH(a,b) ({ \
/* "h" constraint is not an option on R6 and was removed in 4.4 */
# define BN_UMULT_HIGH(a,b) (((__uint128_t)(a)*(b))>>64)
# define BN_UMULT_LOHI(low,high,a,b) ({ \
__uint128_t ret=(__uint128_t)(a)*(b); \
(high)=ret>>64; (low)=ret; })
# else
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \ register BN_ULONG ret; \
asm ("dmultu %1,%2" \ asm ("dmultu %1,%2" \
: "=h"(ret) \ : "=h"(ret) \
: "r"(a), "r"(b) : "l"); \ : "r"(a), "r"(b) : "l"); \
ret; }) ret; })
# define BN_UMULT_LOHI(low,high,a,b)\ # define BN_UMULT_LOHI(low,high,a,b) \
asm ("dmultu %2,%3" \ asm ("dmultu %2,%3" \
: "=l"(low),"=h"(high) \ : "=l"(low),"=h"(high) \
: "r"(a), "r"(b)); : "r"(a), "r"(b));
# endif
# endif # endif
# elif defined(__aarch64__) && defined(SIXTY_FOUR_BIT_LONG) # elif defined(__aarch64__) && defined(SIXTY_FOUR_BIT_LONG)
# if defined(__GNUC__) && __GNUC__>=2 # if defined(__GNUC__) && __GNUC__>=2