ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libecb/ecb.h
(Generate patch)

Comparing libecb/ecb.h (file contents):
Revision 1.136 by root, Tue Jun 17 05:51:31 2014 UTC vs.
Revision 1.139 by root, Tue Oct 14 14:39:06 2014 UTC

… …
90 * causing enormous grief in return for some better fake benchmark numbers. 90 * causing enormous grief in return for some better fake benchmark numbers.
91 * or so. 91 * or so.
92 * we try to detect these and simply assume they are not gcc - if they have 92 * we try to detect these and simply assume they are not gcc - if they have
93 * an issue with that they should have done it right in the first place. 93 * an issue with that they should have done it right in the first place.
94 */ 94 */
95#ifndef ECB_GCC_VERSION
96 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 95#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
97 #define ECB_GCC_VERSION(major,minor) 0 96 #define ECB_GCC_VERSION(major,minor) 0
98 #else 97#else
99 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 98 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
100 #endif 99#endif
100
101#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
102
103#if __clang__ && defined(__has_builtin)
104 #define ECB_CLANG_BUILTIN(x) __has_builtin(x)
105#else
106 #define ECB_CLANG_BUILTIN(x) 0
101#endif 107#endif
102 108
103#define ECB_CPP (__cplusplus+0) 109#define ECB_CPP (__cplusplus+0)
104#define ECB_CPP11 (__cplusplus >= 201103L) 110#define ECB_CPP11 (__cplusplus >= 201103L)
105 111
… …
298#define ECB_STRINGIFY_(a) # a 304#define ECB_STRINGIFY_(a) # a
299#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 305#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
300 306
301#define ecb_function_ ecb_inline 307#define ecb_function_ ecb_inline
302 308
303#if ECB_GCC_VERSION(3,1) 309#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
304 #define ecb_attribute(attrlist) __attribute__(attrlist) 310 #define ecb_attribute(attrlist) __attribute__(attrlist)
311#else
312 #define ecb_attribute(attrlist)
313#endif
314
315#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
305 #define ecb_is_constant(expr) __builtin_constant_p (expr) 316 #define ecb_is_constant(expr) __builtin_constant_p (expr)
306 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
307 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
308#else 317#else
309 #define ecb_attribute(attrlist)
310
311 /* possible C11 impl for integral types 318 /* possible C11 impl for integral types
312 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 319 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
313 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 320 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
314 321
315 #define ecb_is_constant(expr) 0 322 #define ecb_is_constant(expr) 0
323#endif
324
325#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
326 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
327#else
316 #define ecb_expect(expr,value) (expr) 328 #define ecb_expect(expr,value) (expr)
329#endif
330
331#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
332 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
333#else
317 #define ecb_prefetch(addr,rw,locality) 334 #define ecb_prefetch(addr,rw,locality)
318#endif 335#endif
319 336
320/* no emulation for ecb_decltype */ 337/* no emulation for ecb_decltype */
321#if ECB_GCC_VERSION(4,5) 338#if ECB_GCC_VERSION(4,5)
… …
360/* for compatibility to the rest of the world */ 377/* for compatibility to the rest of the world */
361#define ecb_likely(expr) ecb_expect_true (expr) 378#define ecb_likely(expr) ecb_expect_true (expr)
362#define ecb_unlikely(expr) ecb_expect_false (expr) 379#define ecb_unlikely(expr) ecb_expect_false (expr)
363 380
364/* count trailing zero bits and count # of one bits */ 381/* count trailing zero bits and count # of one bits */
365#if ECB_GCC_VERSION(3,4) 382#if ECB_GCC_VERSION(3,4) \
383 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
384 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
385 && ECB_CLANG_BUILTIN(__builtin_popcount))
366 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 386 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
367 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 387 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
368 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 388 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
369 #define ecb_ctz32(x) __builtin_ctz (x) 389 #define ecb_ctz32(x) __builtin_ctz (x)
370 #define ecb_ctz64(x) __builtin_ctzll (x) 390 #define ecb_ctz64(x) __builtin_ctzll (x)
… …
501ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 521ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
502ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 522ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
503ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 523ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
504ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 524ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
505 525
506#if ECB_GCC_VERSION(4,3) 526#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
507 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 527 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
508 #define ecb_bswap32(x) __builtin_bswap32 (x) 528 #define ecb_bswap32(x) __builtin_bswap32 (x)
509 #define ecb_bswap64(x) __builtin_bswap64 (x) 529 #define ecb_bswap64(x) __builtin_bswap64 (x)
510#else 530#else
511 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 531 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
… …
528 { 548 {
529 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 549 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
530 } 550 }
531#endif 551#endif
532 552
533#if ECB_GCC_VERSION(4,5) 553#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
534 #define ecb_unreachable() __builtin_unreachable () 554 #define ecb_unreachable() __builtin_unreachable ()
535#else 555#else
536 /* this seems to work fine, but gcc always emits a warning for it :/ */ 556 /* this seems to work fine, but gcc always emits a warning for it :/ */
537 ecb_inline void ecb_unreachable (void) ecb_noreturn; 557 ecb_inline void ecb_unreachable (void) ecb_noreturn;
538 ecb_inline void ecb_unreachable (void) { } 558 ecb_inline void ecb_unreachable (void) { }

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines