aboutsummaryrefslogtreecommitdiff
path: root/openssl/crypto/bn/bn_lcl.h
diff options
context:
space:
mode:
Diffstat (limited to 'openssl/crypto/bn/bn_lcl.h')
-rw-r--r--openssl/crypto/bn/bn_lcl.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/openssl/crypto/bn/bn_lcl.h b/openssl/crypto/bn/bn_lcl.h
index eecfd8cc9..817c773b6 100644
--- a/openssl/crypto/bn/bn_lcl.h
+++ b/openssl/crypto/bn/bn_lcl.h
@@ -282,16 +282,23 @@ extern "C" {
# endif
# elif defined(__mips) && (defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# if defined(__GNUC__) && __GNUC__>=2
-# define BN_UMULT_HIGH(a,b) ({ \
+# if __GNUC__>=4 && __GNUC_MINOR__>=4 /* "h" constraint is no more since 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; \
asm ("dmultu %1,%2" \
: "=h"(ret) \
: "r"(a), "r"(b) : "l"); \
ret; })
-# define BN_UMULT_LOHI(low,high,a,b) \
+# define BN_UMULT_LOHI(low,high,a,b)\
asm ("dmultu %2,%3" \
: "=l"(low),"=h"(high) \
: "r"(a), "r"(b));
+# endif
# endif
# endif /* cpu */
#endif /* OPENSSL_NO_ASM */