104 lines · 3.7 KB · C
RawDownload
#ifndef __ALPHA_COMPILER_H#define __ALPHA_COMPILER_H /*  * Herein are macros we use when describing various patterns we want to GCC. * In all cases we can get better schedules out of the compiler if we hide * as little as possible inside inline assembly.  However, we want to be * able to know what we'll get out before giving up inline assembly.  Thus * these tests and macros. */ #if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3# define __kernel_insbl(val, shift)	__builtin_alpha_insbl(val, shift)# define __kernel_inswl(val, shift)	__builtin_alpha_inswl(val, shift)# define __kernel_insql(val, shift)	__builtin_alpha_insql(val, shift)# define __kernel_inslh(val, shift)	__builtin_alpha_inslh(val, shift)# define __kernel_extbl(val, shift)	__builtin_alpha_extbl(val, shift)# define __kernel_extwl(val, shift)	__builtin_alpha_extwl(val, shift)# define __kernel_cmpbge(a, b)		__builtin_alpha_cmpbge(a, b)# define __kernel_cttz(x)		__builtin_ctzl(x)# define __kernel_ctlz(x)		__builtin_clzl(x)# define __kernel_ctpop(x)		__builtin_popcountl(x)#else# define __kernel_insbl(val, shift)					\  ({ unsigned long __kir;						\     __asm__("insbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_inswl(val, shift)					\  ({ unsigned long __kir;						\     __asm__("inswl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_insql(val, shift)					\  ({ unsigned long __kir;						\     __asm__("insql %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_inslh(val, shift)					\  ({ unsigned long __kir;						\     __asm__("inslh %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_extbl(val, shift)					\  ({ unsigned long __kir;						\     __asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_extwl(val, shift)					\  ({ unsigned long __kir;						\     __asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val));	\     __kir; })# define __kernel_cmpbge(a, b)						\  ({ unsigned long __kir;						\     __asm__("cmpbge %r2,%1,%0" : "=r"(__kir) : "rI"(b), "rJ"(a));	\     __kir; })# define __kernel_cttz(x)						\  ({ unsigned long __kir;						\     __asm__("cttz %1,%0" : "=r"(__kir) : "r"(x));			\     __kir; })# define __kernel_ctlz(x)						\  ({ unsigned long __kir;						\     __asm__("ctlz %1,%0" : "=r"(__kir) : "r"(x));			\     __kir; })# define __kernel_ctpop(x)						\  ({ unsigned long __kir;						\     __asm__("ctpop %1,%0" : "=r"(__kir) : "r"(x));			\     __kir; })#endif  /*  * Beginning with EGCS 1.1, GCC defines __alpha_bwx__ when the BWX  * extension is enabled.  Previous versions did not define anything * we could test during compilation -- too bad, so sad. */ #if defined(__alpha_bwx__)#define __kernel_ldbu(mem)	(mem)#define __kernel_ldwu(mem)	(mem)#define __kernel_stb(val,mem)	((mem) = (val))#define __kernel_stw(val,mem)	((mem) = (val))#else#define __kernel_ldbu(mem)				\  ({ unsigned char __kir;				\     __asm__("ldbu %0,%1" : "=r"(__kir) : "m"(mem));	\     __kir; })#define __kernel_ldwu(mem)				\  ({ unsigned short __kir;				\     __asm__("ldwu %0,%1" : "=r"(__kir) : "m"(mem));	\     __kir; })#define __kernel_stb(val,mem) \  __asm__("stb %1,%0" : "=m"(mem) : "r"(val))#define __kernel_stw(val,mem) \  __asm__("stw %1,%0" : "=m"(mem) : "r"(val))#endif /* Some idiots over in <linux/compiler.h> thought inline should imply   always_inline.  This breaks stuff.  We'll include this file whenever   we run into such problems.  */ #include <linux/compiler.h>#undef inline#undef __inline__#undef __inline#undef __always_inline#define __always_inline		inline __attribute__((always_inline)) #endif /* __ALPHA_COMPILER_H */