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Diffstat (limited to 'contrib/gcc/ginclude/va-i860.h')
| -rw-r--r-- | contrib/gcc/ginclude/va-i860.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/contrib/gcc/ginclude/va-i860.h b/contrib/gcc/ginclude/va-i860.h new file mode 100644 index 0000000..9b9908a --- /dev/null +++ b/contrib/gcc/ginclude/va-i860.h @@ -0,0 +1,211 @@ +/* Note: We must use the name __builtin_savregs. GCC attaches special + significance to that name. In particular, regardless of where in a + function __builtin_saveregs is called, GCC moves the call up to the + very start of the function. */ + + +/* Define __gnuc_va_list. */ + +#ifndef __GNUC_VA_LIST +#define __GNUC_VA_LIST + +typedef union { + float __freg[8]; + double __dreg[4]; +} __f_regs; + +typedef struct { +#if defined (__SVR4__) || defined (__svr4__) || defined (__alliant__) || defined (__PARAGON__) + __f_regs __float_regs; long __ireg[12]; +#else /* pre-SVR4 */ + long __ireg[12]; __f_regs __float_regs; +#endif +} __va_saved_regs; + +typedef struct { +#if defined(__SVR4__) || defined(__svr4__) || defined(__alliant__) || defined (__PARAGON__) + unsigned __ireg_used; /* How many int regs consumed 'til now? */ + unsigned __freg_used; /* How many flt regs consumed 'til now? */ + long *__reg_base; /* Address of where we stored the regs. */ + long * __mem_ptr; /* Address of memory overflow args area. */ +#else /* pre-SVR4 */ + long *__reg_base; /* Address of where we stored the regs. */ + long * __mem_ptr; /* Address of memory overflow args area. */ + unsigned __ireg_used; /* How many int regs consumed 'til now? */ + unsigned __freg_used; /* How many flt regs consumed 'til now? */ +#endif +} __gnuc_va_list; +#endif /* not __GNUC_VA_LIST */ + +/* If this is for internal libc use, don't define anything but + __gnuc_va_list. */ +#if defined (_STDARG_H) || defined (_VARARGS_H) + +#if !defined(_STDARG_H) + +/* varargs support */ +#define va_alist __builtin_va_alist +#if defined (__PARAGON__) +#define va_dcl int va_alist; +#else /* __PARAGON__ */ +#define va_dcl +#endif /* __PARAGON__ */ +#define va_start(pvar) ((pvar) = * (__gnuc_va_list *) __builtin_saveregs ()) + +#else /* STDARG.H */ + +/* ANSI alternative. */ +/* Note that CUMULATIVE_ARGS elements are measured in bytes on the i860, + so we divide by 4 to get # of registers. */ +#define va_start(pvar, firstarg) \ + ((pvar) = *(__gnuc_va_list *) __builtin_saveregs (), \ + (pvar).__ireg_used = __builtin_args_info (0) / 4, \ + (pvar).__freg_used = __builtin_args_info (1) / 4, \ + (pvar).__mem_ptr = __builtin_next_arg (firstarg)) + +#endif /* _STDARG_H */ + +/* Values returned by __builtin_classify_type. */ + +#ifndef va_end +enum { + __no_type_class = -1, + __void_type_class, + __integer_type_class, + __char_type_class, + __enumeral_type_class, + __boolean_type_class, + __pointer_type_class, + __reference_type_class, + __offset_type_class, + __real_type_class, + __complex_type_class, + __function_type_class, + __method_type_class, + __record_type_class, + __union_type_class, + __array_type_class, + __string_type_class, + __set_type_class, + __file_type_class, + __lang_type_class +}; + +void va_end (__gnuc_va_list); /* Defined in libgcc.a */ +#endif +#define va_end(__va) ((void) 0) + +#define __NUM_PARM_FREGS 8 +#define __NUM_PARM_IREGS 12 + +#define __savereg(__va) ((__va_saved_regs *) ((__va).__reg_base)) + +/* This macro works both for SVR4 and pre-SVR4 environments. */ + +/* Note that parameters are always aligned at least to a word boundary + (when passed) regardless of what GCC's __alignof__ operator says. */ + +/* Make allowances here for adding 128-bit (long double) floats someday. */ + +#if 0 /* What was this for? */ +#ifndef __GNU_VA_LIST +#define __ireg_used ireg_used +#define __freg_used freg_used +#define __mem_ptr mem_ptr +#define __reg_base reg_base +#endif +#endif /* 0 */ + +/* Avoid errors if compiling GCC v2 with GCC v1. */ +#if __GNUC__ == 1 +#define __extension__ +#endif + +#define va_arg(__va, __type) \ +__extension__ \ +(* (__type *) \ +({ \ + register void *__rv; /* result value */ \ + register unsigned __align; \ + switch (__builtin_classify_type (* (__type *) 0)) \ + { \ + case __real_type_class: \ + switch (sizeof (__type)) \ + { \ + case sizeof (float): \ + case sizeof (double): \ + if ((__va).__freg_used < __NUM_PARM_FREGS - 1) \ + { \ + if (((__va).__freg_used & 1) != 0) \ + (__va).__freg_used++; /* skip odd */ \ + __rv = &__savereg((__va))->__float_regs.__freg[(__va).__freg_used];\ + (__va).__freg_used += 2; \ + } \ + else \ + { \ + if ((((unsigned) (__va).__mem_ptr) & (sizeof(double)-1)) != 0) \ + (__va).__mem_ptr++; /* skip odd */ \ + __rv = (__va).__mem_ptr; \ + (__va).__mem_ptr += 2; \ + } \ + if (sizeof (__type) == sizeof (float)) \ + { \ + *((float *) __rv) = *((double *) __rv); \ + *(((long *) __rv) + 1) = 0xfff00001; \ + } \ + break; \ + default: \ + abort (); \ + } \ + break; \ + case __void_type_class: \ + case __integer_type_class: \ + case __char_type_class: \ + case __enumeral_type_class: \ + case __boolean_type_class: \ + case __pointer_type_class: \ + case __reference_type_class: \ + case __offset_type_class: \ + if (sizeof (__type) <= 4) \ + { \ + __rv = ((__va).__ireg_used < __NUM_PARM_IREGS \ + ? (&__savereg((__va))->__ireg[(__va).__ireg_used++]) \ + : (__va).__mem_ptr++); \ + break; \ + } \ + else if ((__va).__ireg_used + sizeof (__type) / 4 <= __NUM_PARM_IREGS) \ + { \ + __rv = &__savereg((__va))->__ireg[(__va).__ireg_used]; \ + (__va).__ireg_used += sizeof (__type) / 4; \ + break; \ + } \ + /* Fall through to fetch from memory. */ \ + case __record_type_class: \ + case __union_type_class: \ + __align = (__alignof__ (__type) < sizeof (long) \ + ? sizeof (long) \ + : __alignof__ (__type)); \ + (__va).__mem_ptr \ + = (long *) \ + ((((unsigned) (__va).__mem_ptr) + (__align-1)) & ~(__align-1)); \ + __rv = (__va).__mem_ptr; \ + (__va).__mem_ptr \ + += ((sizeof (__type) + sizeof (long) - 1) / sizeof (long)); \ + break; \ + case __complex_type_class: \ + case __function_type_class: \ + case __method_type_class: \ + case __array_type_class: \ + case __string_type_class: \ + case __set_type_class: \ + case __file_type_class: \ + case __lang_type_class: \ + case __no_type_class: \ + default: \ + abort (); \ + } \ + __rv; \ +})) + +#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */ + |
