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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #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) #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; }) #endif #ifdef __alpha_cix__ # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 # define __kernel_cttz(x) __builtin_ctzl(x) # define __kernel_ctlz(x) __builtin_clzl(x) # define __kernel_ctpop(x) __builtin_popcountl(x) # else # 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 #else # define __kernel_cttz(x) \ ({ unsigned long __kir; \ __asm__(".arch ev67; cttz %1,%0" : "=r"(__kir) : "r"(x)); \ __kir; }) # define __kernel_ctlz(x) \ ({ unsigned long __kir; \ __asm__(".arch ev67; ctlz %1,%0" : "=r"(__kir) : "r"(x)); \ __kir; }) # define __kernel_ctpop(x) \ ({ unsigned long __kir; \ __asm__(".arch ev67; 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)) #endif #endif /* __ALPHA_COMPILER_H */