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x86_64 performance patch.

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This commit is contained in:
Andy Polyakov
2002-12-14 20:45:39 +00:00
parent 7e201e9f73
commit 1cbdbcd587
12 changed files with 111 additions and 85 deletions
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17
crypto/rc5/rc5_locl.h
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@@ -149,6 +149,23 @@
#if defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)
#define ROTATE_l32(a,n) _lrotl(a,n)
#define ROTATE_r32(a,n) _lrotr(a,n)
#elif defined(__GNUC__) && __GNUC__>=2 && !defined(NO_ASM) && !defined(NO_INLINE_ASM)
# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
# define ROTATE_l32(a,n) ({ register unsigned int ret; \
asm ("roll %%cl,%0" \
: "=r"(ret) \
: "c"(n),"0"(a) \
: "cc"); \
ret; \
})
# define ROTATE_r32(a,n) ({ register unsigned int ret; \
asm ("rorl %%cl,%0" \
: "=r"(ret) \
: "c"(n),"0"(a) \
: "cc"); \
ret; \
})
# endif
#else
#define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>(32-(n&0x1f))))
#define ROTATE_r32(a,n) (((a)<<(32-(n&0x1f)))|(((a)&0xffffffff)>>(n&0x1f)))