-#ifdef __alpha__
-/* the symbols are considered non exported so a br immediate is generated */
-#define __hidden __attribute__((visibility("hidden")))
-#else
-#define __hidden
-#endif
-
-#if defined(__alpha__)
-/* Suggested by Richard Henderson. This will result in code like
- ldah $0,__op_param1($29) !gprelhigh
- lda $0,__op_param1($0) !gprellow
- We can then conveniently change $29 to $31 and adapt the offsets to
- emit the appropriate constant. */
-extern int __op_param1 __hidden;
-extern int __op_param2 __hidden;
-extern int __op_param3 __hidden;
-#define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
-#define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
-#define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
-#else
-#if defined(__APPLE__)
-static int __op_param1, __op_param2, __op_param3;
-#else
-extern int __op_param1, __op_param2, __op_param3;
-#endif
-#define PARAM1 ((long)(&__op_param1))
-#define PARAM2 ((long)(&__op_param2))
-#define PARAM3 ((long)(&__op_param3))
-#endif /* !defined(__alpha__) */
-
-extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
-
-#if defined(_WIN32) || defined(__APPLE__)
-#define ASM_NAME(x) "_" #x
-#else
-#define ASM_NAME(x) #x
-#endif
-
-#if defined(__i386__)
-#define EXIT_TB() asm volatile ("ret")
-#define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
-#elif defined(__x86_64__)
-#define EXIT_TB() asm volatile ("ret")
-#define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
-#elif defined(__powerpc__)
-#define EXIT_TB() asm volatile ("blr")
-#define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
-#elif defined(__s390__)
-#define EXIT_TB() asm volatile ("br %r14")
-#define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
-#elif defined(__alpha__)
-#define EXIT_TB() asm volatile ("ret")
-#elif defined(__ia64__)
-#define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
-#define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \
- ASM_NAME(__op_gen_label) #n)
-#elif defined(__sparc__)
-#define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0; nop")
-#define GOTO_LABEL_PARAM(n) asm volatile ("ba " ASM_NAME(__op_gen_label) #n ";nop")