From 504abf4b3487beee1fcf052e14fe68319fcbc2fb Mon Sep 17 00:00:00 2001 From: Tomas Hruby Date: Thu, 18 Nov 2010 16:37:40 +0000 Subject: [PATCH] Inlining 64bit integer handling functions - if gcc/clang is used the C functions that use long long can be inlined to get better performance (yes, it makes difference) --- include/minix/u64.h | 163 +++++++++++++++++++++++- lib/libc/arch/i386/int64/Makefile.inc | 4 - lib/libc/arch/i386/int64/int64.c | 171 -------------------------- 3 files changed, 162 insertions(+), 176 deletions(-) delete mode 100644 lib/libc/arch/i386/int64/int64.c diff --git a/include/minix/u64.h b/include/minix/u64.h index bb0cf6c01..f8011f4e2 100644 --- a/include/minix/u64.h +++ b/include/minix/u64.h @@ -9,6 +9,8 @@ #include #endif +#if !defined(__LONG_LONG_SUPPORTED) + u64_t add64(u64_t i, u64_t j); u64_t add64u(u64_t i, unsigned j); u64_t add64ul(u64_t i, unsigned long j); @@ -40,7 +42,6 @@ u64_t xor64(u64_t a, u64_t b); u64_t and64(u64_t a, u64_t b); u64_t not64(u64_t a); -#if !defined(__LONG_LONG_SUPPORTED) #define is_zero64(i) ((i).lo == 0 && (i).hi == 0) #define make_zero64(i) do { (i).lo = (i).hi = 0; } while(0) @@ -50,9 +51,169 @@ u64_t not64(u64_t a); (i) = add64u((i), 1); \ } while(0) #else + +#include + #define is_zero64(i) ((i) == 0) #define make_zero64(i) ((i) = 0) #define neg64(i) ((i) = -(i)) + +static inline u64_t add64(u64_t i, u64_t j) +{ + return i + j; +} + +static inline u64_t add64u(u64_t i, unsigned j) +{ + return i + j; +} + +static inline u64_t add64ul(u64_t i, unsigned long j) +{ + return i + j; +} + +static inline int bsr64(u64_t i) +{ + int index; + u64_t mask; + + for (index = 63, mask = 1ULL << 63; index >= 0; --index, mask >>= 1) { + if (i & mask) + return index; + } + + return -1; +} + +static inline int cmp64(u64_t i, u64_t j) +{ + if (i > j) + return 1; + else if (i < j) + return -1; + else /* (i == j) */ + return 0; +} + +static inline int cmp64u(u64_t i, unsigned j) +{ + if (i > j) + return 1; + else if (i < j) + return -1; + else /* (i == j) */ + return 0; +} + +static inline int cmp64ul(u64_t i, unsigned long j) +{ + if (i > j) + return 1; + else if (i < j) + return -1; + else /* (i == j) */ + return 0; +} + +static inline unsigned cv64u(u64_t i) +{ +/* return ULONG_MAX if really big */ + if (i>>32) + return ULONG_MAX; + + return (unsigned)i; +} + +static inline unsigned long cv64ul(u64_t i) +{ +/* return ULONG_MAX if really big */ + if (i>>32) + return ULONG_MAX; + + return (unsigned long)i; +} + +static inline u64_t cvu64(unsigned i) +{ + return i; +} + +static inline u64_t cvul64(unsigned long i) +{ + return i; +} + +static inline unsigned diff64(u64_t i, u64_t j) +{ + return (unsigned)(i - j); +} + +static inline u64_t div64(u64_t i, u64_t j) +{ + return i / j; +} + +static inline u64_t rem64(u64_t i, u64_t j) +{ + return i % j; +} + +static inline unsigned long div64u(u64_t i, unsigned j) +{ + return (unsigned long)(i / j); +} + +static inline u64_t div64u64(u64_t i, unsigned j) +{ + return i / j; +} + +static inline unsigned rem64u(u64_t i, unsigned j) +{ + return (unsigned)(i % j); +} + +static inline unsigned long ex64lo(u64_t i) +{ + return (unsigned long)i; +} + +static inline unsigned long ex64hi(u64_t i) +{ + return (unsigned long)(i>>32); +} + +static inline u64_t make64(unsigned long lo, unsigned long hi) +{ + return ((u64_t)hi << 32) | (u64_t)lo; +} + +static inline u64_t mul64(u64_t i, u64_t j) +{ + return i * j; +} + +static inline u64_t mul64u(unsigned long i, unsigned j) +{ + return (u64_t)i * j; +} + +static inline u64_t sub64(u64_t i, u64_t j) +{ + return i - j; +} + +static inline u64_t sub64u(u64_t i, unsigned j) +{ + return i - j; +} + +static inline u64_t sub64ul(u64_t i, unsigned long j) +{ + return i - j; +} + #endif #endif /* _MINIX__U64_H */ diff --git a/lib/libc/arch/i386/int64/Makefile.inc b/lib/libc/arch/i386/int64/Makefile.inc index 9e9f7b7a3..b3d7fa5ba 100644 --- a/lib/libc/arch/i386/int64/Makefile.inc +++ b/lib/libc/arch/i386/int64/Makefile.inc @@ -1,7 +1,6 @@ # int64 sources .PATH: ${.CURDIR}/arch/${ARCH}/int64 -.if ${COMPILER_TYPE} == "ack" SRCS+= \ add64.S \ add64u.S \ @@ -18,6 +17,3 @@ SRCS+= \ mul64u.S \ sub64.S \ sub64u.S -.elif ${COMPILER_TYPE} == "gnu" -SRCS+= int64.c -.endif diff --git a/lib/libc/arch/i386/int64/int64.c b/lib/libc/arch/i386/int64/int64.c deleted file mode 100644 index 8d7bd8396..000000000 --- a/lib/libc/arch/i386/int64/int64.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * This file implements 64-bit arithmentic functions. These functions will - * go away once clang is ready. - * - * It will only work with GCC and clang. - * - */ - -#include -#include - -#if !defined(__LONG_LONG_SUPPORTED) -#error "ERROR: This file requires long long support" -#endif - - -u64_t add64(u64_t i, u64_t j) -{ - return i + j; -} - -u64_t add64u(u64_t i, unsigned j) -{ - return i + j; -} - -u64_t add64ul(u64_t i, unsigned long j) -{ - return i + j; -} - -int bsr64(u64_t i) -{ - int index; - u64_t mask; - - for (index = 63, mask = 1ULL << 63; index >= 0; --index, mask >>= 1) { - if (i & mask) - return index; - } - - return -1; -} - -int cmp64(u64_t i, u64_t j) -{ - if (i > j) - return 1; - else if (i < j) - return -1; - else /* (i == j) */ - return 0; -} - -int cmp64u(u64_t i, unsigned j) -{ - if (i > j) - return 1; - else if (i < j) - return -1; - else /* (i == j) */ - return 0; -} - -int cmp64ul(u64_t i, unsigned long j) -{ - if (i > j) - return 1; - else if (i < j) - return -1; - else /* (i == j) */ - return 0; -} - -unsigned cv64u(u64_t i) -{ -/* return ULONG_MAX if really big */ - if (i>>32) - return ULONG_MAX; - - return (unsigned)i; -} - -unsigned long cv64ul(u64_t i) -{ -/* return ULONG_MAX if really big */ - if (i>>32) - return ULONG_MAX; - - return (unsigned long)i; -} - -u64_t cvu64(unsigned i) -{ - return i; -} - -u64_t cvul64(unsigned long i) -{ - return i; -} - -unsigned diff64(u64_t i, u64_t j) -{ - return (unsigned)(i - j); -} - -u64_t div64(u64_t i, u64_t j) -{ - return i / j; -} - -u64_t rem64(u64_t i, u64_t j) -{ - return i % j; -} - -unsigned long div64u(u64_t i, unsigned j) -{ - return (unsigned long)(i / j); -} - -u64_t div64u64(u64_t i, unsigned j) -{ - return i / j; -} - -unsigned rem64u(u64_t i, unsigned j) -{ - return (unsigned)(i % j); -} - -unsigned long ex64lo(u64_t i) -{ - return (unsigned long)i; -} - -unsigned long ex64hi(u64_t i) -{ - return (unsigned long)(i>>32); -} - -u64_t make64(unsigned long lo, unsigned long hi) -{ - return ((u64_t)hi << 32) | (u64_t)lo; -} - -u64_t mul64(u64_t i, u64_t j) -{ - return i * j; -} - -u64_t mul64u(unsigned long i, unsigned j) -{ - return (u64_t)i * j; -} - -u64_t sub64(u64_t i, u64_t j) -{ - return i - j; -} - -u64_t sub64u(u64_t i, unsigned j) -{ - return i - j; -} - -u64_t sub64ul(u64_t i, unsigned long j) -{ - return i - j; -} -- 2.44.0