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From: "Boehm, Hans" <hans_boehm@hp.com>
To: "'Andrew Haley'" <aph@cambridge.redhat.com>,
	"Boehm, Hans" <hans_boehm@hp.com>
Cc: "'java@gcc.gnu.org'" <java@gcc.gnu.org>,
	"'tromey@redhat.com'" <tromey@redhat.com>
Subject: RE: Problem with interpreted double operations on IA64
Date: Tue, 09 Apr 2002 09:43:00 -0000	[thread overview]
Message-ID: <40700B4C02ABD5119F000090278766443BF19E@hplex1.hpl.hp.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 1251 bytes --]

It's attached, but probably not very informative; __java_double is
understood by the front end.  But it's a bit hard for me to follow what it
does with it, or why it exists as a type distinct from double.

Hans

> -----Original Message-----
> From: Andrew Haley [mailto:aph@cambridge.redhat.com]
> Sent: Tuesday, April 09, 2002 9:37 AM
> To: Boehm, Hans
> Cc: 'java@gcc.gnu.org'; 'tromey@redhat.com'
> Subject: Problem with interpreted double operations on IA64
> 
> 
> Boehm, Hans writes:
>  > Could someone point me at a description of exactly how 
> type __java_double
>  > should differ from double?  As far as I can tell, 
> __java_double is used
>  > primarily by the interpreter?  On X86 this seems to work 
> correctly.  On IA64
>  > (and perhaps other 64-bit platforms?), it seems to get 
> confused about the
>  > low order bits.  This means that "double precision" results in the
>  > interpreter are computed at most to single precision 
> accuracy.  Here's a C++
>  > example to demonstrate the issue.  Gij runs into the same 
> problems, causing
>  > scimark to fail, etc.  (This is with a very recent 3.1 tree.)
> 
> Weird.  Could you please run gcc with '-save-temps -dD' and let us
> have the double.ii file you get?
> 
> Andrew.
> 


[-- Attachment #2: double.ii --]
[-- Type: application/octet-stream, Size: 25205 bytes --]

# 1 "double.cc"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "double.cc"
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 1 3
# 37 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
# 1 "/usr/include/features.h" 1 3
# 283 "/usr/include/features.h" 3
# 1 "/usr/include/sys/cdefs.h" 1 3
# 284 "/usr/include/features.h" 2 3
# 312 "/usr/include/features.h" 3
# 1 "/usr/include/gnu/stubs.h" 1 3
# 313 "/usr/include/features.h" 2 3
# 38 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 2 3

extern "C" {



# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 201 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 3
typedef long unsigned int size_t;
# 44 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 2 3

# 1 "/usr/include/bits/types.h" 1 3
# 29 "/usr/include/bits/types.h" 3
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 30 "/usr/include/bits/types.h" 2 3


typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;
typedef unsigned long int __u_quad_t;
typedef long int __quad_t;
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;
typedef __quad_t *__qaddr_t;

typedef __uint64_t __dev_t;
typedef __uint32_t __uid_t;
typedef __uint32_t __gid_t;
typedef __uint64_t __ino_t;
typedef __uint64_t __ino64_t;
typedef __uint32_t __mode_t;
typedef __uint64_t __nlink_t;
typedef __int64_t __off_t;
typedef __int64_t __off64_t;
typedef __int64_t __loff_t;
typedef __int32_t __pid_t;
typedef __int64_t __ssize_t;
typedef __uint64_t __rlim_t;
typedef __uint64_t __rlim64_t;
typedef __int64_t __blkcnt_t;
typedef __int64_t __blkcnt64_t;
typedef __uint64_t __fsblkcnt_t;
typedef __uint64_t __fsblkcnt64_t;
typedef __uint64_t __fsfilcnt_t;
typedef __uint64_t __fsfilcnt64_t;
typedef __uint32_t __id_t;

typedef struct
  {
    int __val[2];
  } __fsid_t;


typedef int __daddr_t;
typedef char *__caddr_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef long int __swblk_t;
typedef long int __clock_t;
typedef int __key_t;


typedef int __clockid_t;


typedef int __timer_t;


typedef int __ipc_pid_t;


typedef long int __blksize_t;






typedef int __t_scalar_t;
typedef unsigned int __t_uscalar_t;


typedef long int __intptr_t;


typedef unsigned int __socklen_t;



# 1 "/usr/include/bits/pthreadtypes.h" 1 3
# 23 "/usr/include/bits/pthreadtypes.h" 3
# 1 "/usr/include/bits/sched.h" 1 3
# 68 "/usr/include/bits/sched.h" 3
struct __sched_param
  {
    int __sched_priority;
  };
# 24 "/usr/include/bits/pthreadtypes.h" 2 3


struct _pthread_fastlock
{
  long int __status;
  int __spinlock;

};



typedef struct _pthread_descr_struct *_pthread_descr;





typedef struct __pthread_attr_s
{
  int __detachstate;
  int __schedpolicy;
  struct __sched_param __schedparam;
  int __inheritsched;
  int __scope;
  size_t __guardsize;
  int __stackaddr_set;
  void *__stackaddr;
  size_t __stacksize;
} pthread_attr_t;



typedef struct
{
  struct _pthread_fastlock __c_lock;
  _pthread_descr __c_waiting;
} pthread_cond_t;



typedef struct
{
  int __dummy;
} pthread_condattr_t;


typedef unsigned int pthread_key_t;





typedef struct
{
  int __m_reserved;
  int __m_count;
  _pthread_descr __m_owner;
  int __m_kind;
  struct _pthread_fastlock __m_lock;
} pthread_mutex_t;



typedef struct
{
  int __mutexkind;
} pthread_mutexattr_t;



typedef int pthread_once_t;




typedef struct _pthread_rwlock_t
{
  struct _pthread_fastlock __rw_lock;
  int __rw_readers;
  _pthread_descr __rw_writer;
  _pthread_descr __rw_read_waiting;
  _pthread_descr __rw_write_waiting;
  int __rw_kind;
  int __rw_pshared;
} pthread_rwlock_t;



typedef struct
{
  int __lockkind;
  int __pshared;
} pthread_rwlockattr_t;




typedef volatile int pthread_spinlock_t;


typedef struct {
  struct _pthread_fastlock __ba_lock;
  int __ba_required;
  int __ba_present;
  _pthread_descr __ba_waiting;
} pthread_barrier_t;


typedef struct {
  int __pshared;
} pthread_barrierattr_t;





typedef unsigned long int pthread_t;
# 114 "/usr/include/bits/types.h" 2 3
# 46 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 2 3
# 54 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
typedef struct _IO_FILE FILE;
# 64 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
typedef struct _IO_FILE __FILE;
# 74 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
# 1 "/usr/include/libio.h" 1 3
# 32 "/usr/include/libio.h" 3
# 1 "/usr/include/_G_config.h" 1 3
# 14 "/usr/include/_G_config.h" 3
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 321 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 3
typedef unsigned int wint_t;
# 15 "/usr/include/_G_config.h" 2 3
# 24 "/usr/include/_G_config.h" 3
# 1 "/usr/include/wchar.h" 1 3
# 48 "/usr/include/wchar.h" 3
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 49 "/usr/include/wchar.h" 2 3

# 1 "/usr/include/bits/wchar.h" 1 3
# 51 "/usr/include/wchar.h" 2 3
# 67 "/usr/include/wchar.h" 3
typedef struct
{
  int __count;
  union
  {
    wint_t __wch;
    char __wchb[4];
  } __value;
} __mbstate_t;
# 25 "/usr/include/_G_config.h" 2 3

typedef struct
{
  __off_t __pos;
  __mbstate_t __state;
} _G_fpos_t;
typedef struct
{
  __off64_t __pos;
  __mbstate_t __state;
} _G_fpos64_t;
# 44 "/usr/include/_G_config.h" 3
# 1 "/usr/include/gconv.h" 1 3
# 28 "/usr/include/gconv.h" 3
# 1 "/usr/include/wchar.h" 1 3
# 48 "/usr/include/wchar.h" 3
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 49 "/usr/include/wchar.h" 2 3
# 29 "/usr/include/gconv.h" 2 3

# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stddef.h" 1 3
# 31 "/usr/include/gconv.h" 2 3





enum
{
  __GCONV_OK = 0,
  __GCONV_NOCONV,
  __GCONV_NODB,
  __GCONV_NOMEM,

  __GCONV_EMPTY_INPUT,
  __GCONV_FULL_OUTPUT,
  __GCONV_ILLEGAL_INPUT,
  __GCONV_INCOMPLETE_INPUT,

  __GCONV_ILLEGAL_DESCRIPTOR,
  __GCONV_INTERNAL_ERROR
};



enum
{
  __GCONV_IS_LAST = 0x0001,
  __GCONV_IGNORE_ERRORS = 0x0002
};



struct __gconv_step;
struct __gconv_step_data;
struct __gconv_loaded_object;
struct __gconv_trans_data;



typedef int (*__gconv_fct) (struct __gconv_step *, struct __gconv_step_data *,
                            __const unsigned char **, __const unsigned char *,
                            unsigned char **, size_t *, int, int);


typedef int (*__gconv_init_fct) (struct __gconv_step *);
typedef void (*__gconv_end_fct) (struct __gconv_step *);



typedef int (*__gconv_trans_fct) (struct __gconv_step *,
                                  struct __gconv_step_data *, void *,
                                  __const unsigned char *,
                                  __const unsigned char **,
                                  __const unsigned char *, unsigned char **,
                                  size_t *);


typedef int (*__gconv_trans_context_fct) (void *, __const unsigned char *,
                                          __const unsigned char *,
                                          unsigned char *, unsigned char *);


typedef int (*__gconv_trans_query_fct) (__const char *, __const char ***,
                                        size_t *);


typedef int (*__gconv_trans_init_fct) (void **, const char *);
typedef void (*__gconv_trans_end_fct) (void *);

struct __gconv_trans_data
{

  __gconv_trans_fct __trans_fct;
  __gconv_trans_context_fct __trans_context_fct;
  __gconv_trans_end_fct __trans_end_fct;
  void *__data;
  struct __gconv_trans_data *__next;
};



struct __gconv_step
{
  struct __gconv_loaded_object *__shlib_handle;
  __const char *__modname;

  int __counter;

  char *__from_name;
  char *__to_name;

  __gconv_fct __fct;
  __gconv_init_fct __init_fct;
  __gconv_end_fct __end_fct;



  int __min_needed_from;
  int __max_needed_from;
  int __min_needed_to;
  int __max_needed_to;


  int __stateful;

  void *__data;
};



struct __gconv_step_data
{
  unsigned char *__outbuf;
  unsigned char *__outbufend;



  int __flags;



  int __invocation_counter;



  int __internal_use;

  __mbstate_t *__statep;
  __mbstate_t __state;



  struct __gconv_trans_data *__trans;
};



typedef struct __gconv_info
{
  size_t __nsteps;
  struct __gconv_step *__steps;
  __extension__ struct __gconv_step_data __data [];
} *__gconv_t;
# 45 "/usr/include/_G_config.h" 2 3
typedef union
{
  struct __gconv_info __cd;
  struct
  {
    struct __gconv_info __cd;
    struct __gconv_step_data __data;
  } __combined;
} _G_iconv_t;

typedef int _G_int16_t __attribute__ ((__mode__ (__HI__)));
typedef int _G_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
# 33 "/usr/include/libio.h" 2 3
# 53 "/usr/include/libio.h" 3
# 1 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdarg.h" 1 3
# 43 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdarg.h" 3
typedef __builtin_va_list __gnuc_va_list;
# 54 "/usr/include/libio.h" 2 3
# 160 "/usr/include/libio.h" 3
struct _IO_jump_t; struct _IO_FILE;
# 170 "/usr/include/libio.h" 3
typedef void _IO_lock_t;





struct _IO_marker {
  struct _IO_marker *_next;
  struct _IO_FILE *_sbuf;



  int _pos;
# 193 "/usr/include/libio.h" 3
};


enum __codecvt_result
{
  __codecvt_ok,
  __codecvt_partial,
  __codecvt_error,
  __codecvt_noconv
};
# 261 "/usr/include/libio.h" 3
struct _IO_FILE {
  int _flags;




  char* _IO_read_ptr;
  char* _IO_read_end;
  char* _IO_read_base;
  char* _IO_write_base;
  char* _IO_write_ptr;
  char* _IO_write_end;
  char* _IO_buf_base;
  char* _IO_buf_end;

  char *_IO_save_base;
  char *_IO_backup_base;
  char *_IO_save_end;

  struct _IO_marker *_markers;

  struct _IO_FILE *_chain;

  int _fileno;
  int _blksize;
  __off_t _old_offset;



  unsigned short _cur_column;
  signed char _vtable_offset;
  char _shortbuf[1];



  _IO_lock_t *_lock;
# 305 "/usr/include/libio.h" 3
  __off64_t _offset;





  void *__pad1;
  void *__pad2;

  int _mode;

  char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];

};





struct _IO_FILE_plus;

extern struct _IO_FILE_plus _IO_2_1_stdin_;
extern struct _IO_FILE_plus _IO_2_1_stdout_;
extern struct _IO_FILE_plus _IO_2_1_stderr_;
# 344 "/usr/include/libio.h" 3
typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);







typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf,
                                 size_t __n);







typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w);


typedef int __io_close_fn (void *__cookie);




typedef __io_read_fn cookie_read_function_t;
typedef __io_write_fn cookie_write_function_t;
typedef __io_seek_fn cookie_seek_function_t;
typedef __io_close_fn cookie_close_function_t;


typedef struct
{
  __io_read_fn *read;
  __io_write_fn *write;
  __io_seek_fn *seek;
  __io_close_fn *close;
} _IO_cookie_io_functions_t;
typedef _IO_cookie_io_functions_t cookie_io_functions_t;

struct _IO_cookie_file;


extern void _IO_cookie_init (struct _IO_cookie_file *__cfile, int __read_write,
                             void *__cookie, _IO_cookie_io_functions_t __fns);




extern "C" {


extern int __underflow (_IO_FILE *) throw ();
extern int __uflow (_IO_FILE *) throw ();
extern int __overflow (_IO_FILE *, int) throw ();
extern wint_t __wunderflow (_IO_FILE *) throw ();
extern wint_t __wuflow (_IO_FILE *) throw ();
extern wint_t __woverflow (_IO_FILE *, wint_t) throw ();
# 426 "/usr/include/libio.h" 3
extern int _IO_getc (_IO_FILE *__fp) throw ();
extern int _IO_putc (int __c, _IO_FILE *__fp) throw ();
extern int _IO_feof (_IO_FILE *__fp) throw ();
extern int _IO_ferror (_IO_FILE *__fp) throw ();

extern int _IO_peekc_locked (_IO_FILE *__fp) throw ();





extern void _IO_flockfile (_IO_FILE *) throw ();
extern void _IO_funlockfile (_IO_FILE *) throw ();
extern int _IO_ftrylockfile (_IO_FILE *) throw ();
# 456 "/usr/include/libio.h" 3
extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
                        __gnuc_va_list, int *__restrict) throw ();
extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
                         __gnuc_va_list) throw ();
extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t) throw ();
extern size_t _IO_sgetn (_IO_FILE *, void *, size_t) throw ();

extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int) throw ();
extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int) throw ();

extern void _IO_free_backup_area (_IO_FILE *) throw ();
# 512 "/usr/include/libio.h" 3
}
# 75 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 2 3




typedef __gnuc_va_list __not_va_list__;
# 89 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
typedef _G_fpos_t fpos_t;




typedef _G_fpos64_t fpos64_t;
# 138 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
# 1 "/usr/include/bits/stdio_lim.h" 1 3
# 139 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 2 3



extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;
# 153 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern int remove (__const char *__filename) throw ();

extern int rename (__const char *__old, __const char *__new) throw ();




extern FILE *tmpfile (void) throw ();
# 169 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern FILE *tmpfile64 (void) throw ();


extern char *tmpnam (char *__s) throw ();




extern char *tmpnam_r (char *__s) throw ();
# 189 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern char *tempnam (__const char *__dir, __const char *__pfx)
     throw () __attribute__ ((__malloc__));




extern int fclose (FILE *__stream) throw ();

extern int fflush (FILE *__stream) throw ();



extern int fflush_unlocked (FILE *__stream) throw ();




extern int fcloseall (void) throw ();





extern FILE *fopen (__const char *__restrict __filename,
                    __const char *__restrict __modes) throw ();

extern FILE *freopen (__const char *__restrict __filename,
                      __const char *__restrict __modes,
                      FILE *__restrict __stream) throw ();
# 233 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern FILE *fopen64 (__const char *__restrict __filename,
                      __const char *__restrict __modes) throw ();
extern FILE *freopen64 (__const char *__restrict __filename,
                        __const char *__restrict __modes,
                        FILE *__restrict __stream) throw ();




extern FILE *fdopen (int __fd, __const char *__modes) throw ();





extern FILE *fopencookie (void *__restrict __magic_cookie,
                          __const char *__restrict __modes,
                          _IO_cookie_io_functions_t __io_funcs) throw ();


extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes) throw ();




extern FILE *open_memstream (char **__restrict __bufloc,
                             size_t *__restrict __sizeloc) throw ();





extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) throw ();



extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
                    int __modes, size_t __n) throw ();




extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
                       size_t __size) throw ();


extern void setlinebuf (FILE *__stream) throw ();




extern int fprintf (FILE *__restrict __stream,
                    __const char *__restrict __format, ...) throw ();

extern int printf (__const char *__restrict __format, ...) throw ();

extern int sprintf (char *__restrict __s,
                    __const char *__restrict __format, ...) throw ();


extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
                     __gnuc_va_list __arg) throw ();

extern int vprintf (__const char *__restrict __format, __gnuc_va_list __arg)
     throw ();

extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
                     __gnuc_va_list __arg) throw ();



extern int snprintf (char *__restrict __s, size_t __maxlen,
                     __const char *__restrict __format, ...)
     throw () __attribute__ ((__format__ (__printf__, 3, 4)));

extern int vsnprintf (char *__restrict __s, size_t __maxlen,
                      __const char *__restrict __format, __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__printf__, 3, 0)));





extern int vasprintf (char **__restrict __ptr, __const char *__restrict __f,
                      __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__printf__, 2, 0)));
extern int __asprintf (char **__restrict __ptr,
                       __const char *__restrict __fmt, ...)
     throw () __attribute__ ((__format__ (__printf__, 2, 3)));
extern int asprintf (char **__restrict __ptr,
                     __const char *__restrict __fmt, ...)
     throw () __attribute__ ((__format__ (__printf__, 2, 3)));


extern int vdprintf (int __fd, __const char *__restrict __fmt,
                     __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
     throw () __attribute__ ((__format__ (__printf__, 2, 3)));




extern int fscanf (FILE *__restrict __stream,
                   __const char *__restrict __format, ...) throw ();

extern int scanf (__const char *__restrict __format, ...) throw ();

extern int sscanf (__const char *__restrict __s,
                   __const char *__restrict __format, ...) throw ();



extern int vfscanf (FILE *__restrict __s, __const char *__restrict __format,
                    __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__scanf__, 2, 0)));


extern int vscanf (__const char *__restrict __format, __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__scanf__, 1, 0)));


extern int vsscanf (__const char *__restrict __s,
                    __const char *__restrict __format, __gnuc_va_list __arg)
     throw () __attribute__ ((__format__ (__scanf__, 2, 0)));




extern int fgetc (FILE *__stream) throw ();
extern int getc (FILE *__stream) throw ();


extern int getchar (void) throw ();







extern int getc_unlocked (FILE *__stream) throw ();
extern int getchar_unlocked (void) throw ();




extern int fgetc_unlocked (FILE *__stream) throw ();




extern int fputc (int __c, FILE *__stream) throw ();
extern int putc (int __c, FILE *__stream) throw ();


extern int putchar (int __c) throw ();







extern int fputc_unlocked (int __c, FILE *__stream) throw ();




extern int putc_unlocked (int __c, FILE *__stream) throw ();
extern int putchar_unlocked (int __c) throw ();





extern int getw (FILE *__stream) throw ();


extern int putw (int __w, FILE *__stream) throw ();




extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
     throw ();



extern char *fgets_unlocked (char *__restrict __s, int __n,
                             FILE *__restrict __stream) throw ();




extern char *gets (char *__s) throw ();
# 437 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern __ssize_t __getdelim (char **__restrict __lineptr,
                               size_t *__restrict __n, int __delimiter,
                               FILE *__restrict __stream) throw ();
extern __ssize_t getdelim (char **__restrict __lineptr,
                             size_t *__restrict __n, int __delimiter,
                             FILE *__restrict __stream) throw ();


extern __ssize_t getline (char **__restrict __lineptr,
                            size_t *__restrict __n,
                            FILE *__restrict __stream) throw ();




extern int fputs (__const char *__restrict __s, FILE *__restrict __stream)
     throw ();



extern int fputs_unlocked (__const char *__restrict __s,
                           FILE *__restrict __stream) throw ();



extern int puts (__const char *__s) throw ();



extern int ungetc (int __c, FILE *__stream) throw ();



extern size_t fread (void *__restrict __ptr, size_t __size,
                     size_t __n, FILE *__restrict __stream) throw ();

extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
                      size_t __n, FILE *__restrict __s) throw ();



extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
                              size_t __n, FILE *__restrict __stream) throw ();
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
                               size_t __n, FILE *__restrict __stream) throw ();




extern int fseek (FILE *__stream, long int __off, int __whence) throw ();

extern long int ftell (FILE *__stream) throw ();

extern void rewind (FILE *__stream) throw ();
# 500 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern int fseeko (FILE *__stream, __off_t __off, int __whence) throw ();

extern __off_t ftello (FILE *__stream) throw ();



extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos)
     throw ();

extern int fsetpos (FILE *__stream, __const fpos_t *__pos) throw ();
# 534 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence) throw ();
extern __off64_t ftello64 (FILE *__stream) throw ();
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos)
     throw ();
extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos) throw ();



extern void clearerr (FILE *__stream) throw ();

extern int feof (FILE *__stream) throw ();

extern int ferror (FILE *__stream) throw ();



extern void clearerr_unlocked (FILE *__stream) throw ();
extern int feof_unlocked (FILE *__stream) throw ();
extern int ferror_unlocked (FILE *__stream) throw ();




extern void perror (__const char *__s) throw ();




extern int sys_nerr;
extern __const char *__const sys_errlist[];


extern int _sys_nerr;
extern __const char *__const _sys_errlist[];





extern int fileno (FILE *__stream) throw ();




extern int fileno_unlocked (FILE *__stream) throw ();






extern FILE *popen (__const char *__command, __const char *__modes) throw ();


extern int pclose (FILE *__stream) throw ();





extern char *ctermid (char *__s) throw ();





extern char *cuserid (char *__s) throw ();




struct obstack;


extern int obstack_printf (struct obstack *__restrict __obstack,
                           __const char *__restrict __format, ...) throw ();
extern int obstack_vprintf (struct obstack *__restrict __obstack,
                            __const char *__restrict __format,
                            __gnuc_va_list __args) throw ();







extern void flockfile (FILE *__stream) throw ();



extern int ftrylockfile (FILE *__stream) throw ();


extern void funlockfile (FILE *__stream) throw ();
# 644 "/home/hboehm/gcc3.1/usr/lib/gcc-lib/ia64-unknown-linux/3.1/include/stdio.h" 3
}
# 2 "double.cc" 2

__java_double jdiv (__java_double x, __java_double y) {
  return x/y;
}


double div (double x, double y) {
  return x/y;
}


int main()
{
  __java_double jx=2.0, jy=3.0;
  double x=2.0, y=3.0;
  double result, jresult;

  jresult = jdiv(jx, jy);
  result = div(x, y);

  printf("%20.15f %20.15f\n", result, jresult);
}

             reply	other threads:[~2002-04-09 16:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-09  9:43 Boehm, Hans [this message]
2002-04-09 10:01 ` Andrew Haley
2002-04-09 10:30 ` Per Bothner
2002-04-09 11:15 ` C++: __java_double expressions promote to float Andrew Haley
2002-04-10  1:20   ` Mark Mitchell
2002-04-10  6:13   ` Jason Merrill
2002-04-10  9:45     ` Andrew Haley
2002-04-10  9:47       ` Jason Merrill
2002-04-10 10:14         ` Andrew Haley
  -- strict thread matches above, loose matches on Subject: below --
2002-04-09  9:37 Problem with interpreted double operations on IA64 Boehm, Hans
2002-04-09  9:43 ` Andrew Haley
2002-04-09 10:51 ` Tom Tromey

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