[Bug c/15114] New: -funit-at-a-time causes compilation of functions with variable length arrays to fail

[Bug c/15114] New: -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rsmith at xs4all dot nl]

Compiling matrix.c (matrix.i is included below) failed with -O2. I've narrowed
it down to the fact that -funit-at-a-time triggers the bug (-O2
-fno-unit-at-a-time does not trigger the bug).

gcc -v (from slackware/testing):
Reading specs from /usr/lib/gcc/i486-slackware-linux/3.4.0/specs
Configured with: ../gcc-3.4.0/configure --prefix=/usr --enable-shared
--enable-threads=posix --enable-__cxa_atexit --disable-checking --with-gnu-ld
--verbose --target=i486-slackware-linux --host=i486-slackware-linux
Thread model: posix
gcc version 3.4.0

Command line that produces the bug:
gcc -Wall -funit-at-a-time -c matrix.c

Compiler errors generated:
matrix.c: In function `mat_unity':
matrix.c:106: error: prior parameter's size depends on 'n'
matrix.c:106: error: prior parameter's size depends on 'n'
matrix.c:106: error: prior parameter's size depends on 'n'
matrix.c:106: error: prior parameter's size depends on 'n'
matrix.c:120: error: prior parameter's size depends on 'n'
matrix.c:120: error: prior parameter's size depends on 'n'
matrix.c:120: error: prior parameter's size depends on 'n'
matrix.c:120: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:134: error: prior parameter's size depends on 'n'
matrix.c:153: error: prior parameter's size depends on 'n'
matrix.c:153: error: prior parameter's size depends on 'n'
matrix.c:153: error: prior parameter's size depends on 'n'
matrix.c:153: error: prior parameter's size depends on 'n'
matrix.c:212: error: prior parameter's size depends on 'n'
matrix.c:212: error: prior parameter's size depends on 'n'
matrix.c:114: confused by earlier errors, bailing out

matrix.i, pre-processed matrix.c:
/*------------------- matrix.i -------------------*/
# 1 "matrix.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "matrix.c"
# 44 "matrix.c"
# 1 "/usr/include/assert.h" 1 3 4
# 36 "/usr/include/assert.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 291 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 292 "/usr/include/features.h" 2 3 4
# 314 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 315 "/usr/include/features.h" 2 3 4
# 37 "/usr/include/assert.h" 2 3 4
# 65 "/usr/include/assert.h" 3 4



extern void __assert_fail (__const char *__assertion, __const char *__file,
      unsigned int __line, __const char *__function)
     __attribute__ ((__noreturn__));


extern void __assert_perror_fail (int __errnum, __const char *__file,
      unsigned int __line,
      __const char *__function)
     __attribute__ ((__noreturn__));




extern void __assert (const char *__assertion, const char *__file, int __line)
     __attribute__ ((__noreturn__));



# 45 "matrix.c" 2
# 1 "/usr/include/stdio.h" 1 3 4
# 30 "/usr/include/stdio.h" 3 4




# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 213 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 3 4
typedef unsigned int size_t;
# 35 "/usr/include/stdio.h" 2 3 4

# 1 "/usr/include/bits/types.h" 1 3 4
# 28 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 29 "/usr/include/bits/types.h" 2 3 4


# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 32 "/usr/include/bits/types.h" 2 3 4


typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;


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;




__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;





__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
# 128 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 129 "/usr/include/bits/types.h" 2 3 4


typedef unsigned long long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned int __nlink_t;
typedef long int __off_t;
typedef long long int __off64_t;
typedef int __pid_t;
typedef struct { int __val[2]; } __fsid_t;
typedef long int __clock_t;
typedef unsigned long int __rlim_t;
typedef unsigned long long int __rlim64_t;
typedef unsigned int __id_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;

typedef int __daddr_t;
typedef long int __swblk_t;
typedef int __key_t;


typedef int __clockid_t;


typedef int __timer_t;


typedef long int __blksize_t;




typedef long int __blkcnt_t;
typedef long long int __blkcnt64_t;


typedef unsigned long int __fsblkcnt_t;
typedef unsigned long long int __fsblkcnt64_t;


typedef unsigned long int __fsfilcnt_t;
typedef unsigned long long int __fsfilcnt64_t;




typedef int __ssize_t;
typedef __off64_t __loff_t;
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;


typedef int __intptr_t;


typedef unsigned int __socklen_t;
# 37 "/usr/include/stdio.h" 2 3 4









typedef struct _IO_FILE FILE;





# 62 "/usr/include/stdio.h" 3 4
typedef struct _IO_FILE __FILE;
# 72 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/libio.h" 1 3 4
# 32 "/usr/include/libio.h" 3 4
# 1 "/usr/include/_G_config.h" 1 3 4
# 14 "/usr/include/_G_config.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 325 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 3 4
typedef long int wchar_t;
# 354 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 3 4
typedef unsigned int wint_t;
# 15 "/usr/include/_G_config.h" 2 3 4
# 24 "/usr/include/_G_config.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4

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

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 4
# 1 "/usr/include/gconv.h" 1 3 4
# 28 "/usr/include/gconv.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4
# 29 "/usr/include/gconv.h" 2 3 4


# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 32 "/usr/include/gconv.h" 2 3 4





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 wint_t (*__gconv_btowc_fct) (struct __gconv_step *, unsigned char);


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_btowc_fct __btowc_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 4
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 4
# 53 "/usr/include/libio.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stdarg.h" 1 3 4
# 43 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 54 "/usr/include/libio.h" 2 3 4
# 162 "/usr/include/libio.h" 3 4
struct _IO_jump_t; struct _IO_FILE;
# 172 "/usr/include/libio.h" 3 4
typedef void _IO_lock_t;





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



  int _pos;
# 195 "/usr/include/libio.h" 3 4
};


enum __codecvt_result
{
  __codecvt_ok,
  __codecvt_partial,
  __codecvt_error,
  __codecvt_noconv
};
# 263 "/usr/include/libio.h" 3 4
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 _flags2;

  __off_t _old_offset;



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



  _IO_lock_t *_lock;
# 311 "/usr/include/libio.h" 3 4
  __off64_t _offset;





  void *__pad1;
  void *__pad2;

  int _mode;

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

};


typedef struct _IO_FILE _IO_FILE;


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_;
# 350 "/usr/include/libio.h" 3 4
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);
# 402 "/usr/include/libio.h" 3 4
extern int __underflow (_IO_FILE *) ;
extern int __uflow (_IO_FILE *) ;
extern int __overflow (_IO_FILE *, int) ;
extern wint_t __wunderflow (_IO_FILE *) ;
extern wint_t __wuflow (_IO_FILE *) ;
extern wint_t __woverflow (_IO_FILE *, wint_t) ;
# 432 "/usr/include/libio.h" 3 4
extern int _IO_getc (_IO_FILE *__fp) ;
extern int _IO_putc (int __c, _IO_FILE *__fp) ;
extern int _IO_feof (_IO_FILE *__fp) ;
extern int _IO_ferror (_IO_FILE *__fp) ;

extern int _IO_peekc_locked (_IO_FILE *__fp) ;





extern void _IO_flockfile (_IO_FILE *) ;
extern void _IO_funlockfile (_IO_FILE *) ;
extern int _IO_ftrylockfile (_IO_FILE *) ;
# 462 "/usr/include/libio.h" 3 4
extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
   __gnuc_va_list, int *__restrict) ;
extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
    __gnuc_va_list) ;
extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t) ;
extern size_t _IO_sgetn (_IO_FILE *, void *, size_t) ;

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

extern void _IO_free_backup_area (_IO_FILE *) ;
# 73 "/usr/include/stdio.h" 2 3 4
# 86 "/usr/include/stdio.h" 3 4


typedef _G_fpos_t fpos_t;




# 138 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio_lim.h" 1 3 4
# 139 "/usr/include/stdio.h" 2 3 4



extern struct _IO_FILE *stdin;
extern struct _IO_FILE *stdout;
extern struct _IO_FILE *stderr;







extern int remove (__const char *__filename) ;

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






extern FILE *tmpfile (void) ;
# 171 "/usr/include/stdio.h" 3 4
extern char *tmpnam (char *__s) ;

# 181 "/usr/include/stdio.h" 3 4
extern char *tmpnam_r (char *__s) ;
# 193 "/usr/include/stdio.h" 3 4
extern char *tempnam (__const char *__dir, __const char *__pfx)
     __attribute__ ((__malloc__));





extern int fclose (FILE *__stream) ;

extern int fflush (FILE *__stream) ;




extern int fflush_unlocked (FILE *__stream) ;
# 216 "/usr/include/stdio.h" 3 4



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

extern FILE *freopen (__const char *__restrict __filename,
        __const char *__restrict __modes,
        FILE *__restrict __stream) ;
# 239 "/usr/include/stdio.h" 3 4

# 250 "/usr/include/stdio.h" 3 4
extern FILE *fdopen (int __fd, __const char *__modes) ;
# 271 "/usr/include/stdio.h" 3 4



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



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





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


extern void setlinebuf (FILE *__stream) ;





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

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

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


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

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

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





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

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

# 349 "/usr/include/stdio.h" 3 4


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

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

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

# 379 "/usr/include/stdio.h" 3 4


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


extern int getchar (void) ;








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




extern int fgetc_unlocked (FILE *__stream) ;





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


extern int putchar (int __c) ;








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




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





extern int getw (FILE *__stream) ;


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





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



extern char *gets (char *__s) ;

# 475 "/usr/include/stdio.h" 3 4


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


extern int puts (__const char *__s) ;



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



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

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

# 504 "/usr/include/stdio.h" 3 4
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
         size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
          size_t __n, FILE *__restrict __stream) ;





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

extern long int ftell (FILE *__stream) ;

extern void rewind (FILE *__stream) ;

# 544 "/usr/include/stdio.h" 3 4



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

extern int fsetpos (FILE *__stream, __const fpos_t *__pos) ;
# 563 "/usr/include/stdio.h" 3 4

# 573 "/usr/include/stdio.h" 3 4


extern void clearerr (FILE *__stream) ;

extern int feof (FILE *__stream) ;

extern int ferror (FILE *__stream) ;




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





extern void perror (__const char *__s) ;






# 1 "/usr/include/bits/sys_errlist.h" 1 3 4
# 27 "/usr/include/bits/sys_errlist.h" 3 4
extern int sys_nerr;
extern __const char *__const sys_errlist[];
# 600 "/usr/include/stdio.h" 2 3 4




extern int fileno (FILE *__stream) ;




extern int fileno_unlocked (FILE *__stream) ;






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


extern int pclose (FILE *__stream) ;





extern char *ctermid (char *__s) ;
# 653 "/usr/include/stdio.h" 3 4
extern void flockfile (FILE *__stream) ;



extern int ftrylockfile (FILE *__stream) ;


extern void funlockfile (FILE *__stream) ;
# 677 "/usr/include/stdio.h" 3 4

# 46 "matrix.c" 2
# 1 "/usr/include/stdlib.h" 1 3 4
# 33 "/usr/include/stdlib.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 34 "/usr/include/stdlib.h" 2 3 4


# 93 "/usr/include/stdlib.h" 3 4


typedef struct
  {
    int quot;
    int rem;
  } div_t;



typedef struct
  {
    long int quot;
    long int rem;
  } ldiv_t;



# 137 "/usr/include/stdlib.h" 3 4
extern size_t __ctype_get_mb_cur_max (void) ;




extern double atof (__const char *__nptr) __attribute__ ((__pure__));

extern int atoi (__const char *__nptr) __attribute__ ((__pure__));

extern long int atol (__const char *__nptr) __attribute__ ((__pure__));





__extension__ extern long long int atoll (__const char *__nptr)
     __attribute__ ((__pure__));





extern double strtod (__const char *__restrict __nptr,
        char **__restrict __endptr) ;

# 174 "/usr/include/stdlib.h" 3 4


extern long int strtol (__const char *__restrict __nptr,
   char **__restrict __endptr, int __base) ;

extern unsigned long int strtoul (__const char *__restrict __nptr,
      char **__restrict __endptr, int __base)
     ;




__extension__
extern long long int strtoq (__const char *__restrict __nptr,
        char **__restrict __endptr, int __base) ;

__extension__
extern unsigned long long int strtouq (__const char *__restrict __nptr,
           char **__restrict __endptr, int __base)
     ;





__extension__
extern long long int strtoll (__const char *__restrict __nptr,
         char **__restrict __endptr, int __base) ;

__extension__
extern unsigned long long int strtoull (__const char *__restrict __nptr,
     char **__restrict __endptr, int __base)
     ;

# 264 "/usr/include/stdlib.h" 3 4
extern double __strtod_internal (__const char *__restrict __nptr,
     char **__restrict __endptr, int __group)
     ;
extern float __strtof_internal (__const char *__restrict __nptr,
    char **__restrict __endptr, int __group)
     ;
extern long double __strtold_internal (__const char *__restrict __nptr,
           char **__restrict __endptr,
           int __group) ;

extern long int __strtol_internal (__const char *__restrict __nptr,
       char **__restrict __endptr,
       int __base, int __group) ;



extern unsigned long int __strtoul_internal (__const char *__restrict __nptr,
          char **__restrict __endptr,
          int __base, int __group) ;




__extension__
extern long long int __strtoll_internal (__const char *__restrict __nptr,
      char **__restrict __endptr,
      int __base, int __group) ;



__extension__
extern unsigned long long int __strtoull_internal (__const char *
         __restrict __nptr,
         char **__restrict __endptr,
         int __base, int __group)
     ;
# 408 "/usr/include/stdlib.h" 3 4
extern char *l64a (long int __n) ;


extern long int a64l (__const char *__s) __attribute__ ((__pure__));


# 1 "/usr/include/sys/types.h" 1 3 4
# 29 "/usr/include/sys/types.h" 3 4






typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;




typedef __loff_t loff_t;



typedef __ino_t ino_t;
# 62 "/usr/include/sys/types.h" 3 4
typedef __dev_t dev_t;




typedef __gid_t gid_t;




typedef __mode_t mode_t;




typedef __nlink_t nlink_t;




typedef __uid_t uid_t;





typedef __off_t off_t;
# 100 "/usr/include/sys/types.h" 3 4
typedef __pid_t pid_t;




typedef __id_t id_t;




typedef __ssize_t ssize_t;





typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;





typedef __key_t key_t;
# 133 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/time.h" 1 3 4
# 74 "/usr/include/time.h" 3 4


typedef __time_t time_t;



# 92 "/usr/include/time.h" 3 4
typedef __clockid_t clockid_t;
# 104 "/usr/include/time.h" 3 4
typedef __timer_t timer_t;
# 134 "/usr/include/sys/types.h" 2 3 4
# 147 "/usr/include/sys/types.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 148 "/usr/include/sys/types.h" 2 3 4



typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 191 "/usr/include/sys/types.h" 3 4
typedef int int8_t __attribute__ ((__mode__ (__QI__)));
typedef int int16_t __attribute__ ((__mode__ (__HI__)));
typedef int int32_t __attribute__ ((__mode__ (__SI__)));
typedef int int64_t __attribute__ ((__mode__ (__DI__)));


typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));

typedef int register_t __attribute__ ((__mode__ (__word__)));
# 213 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 37 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/endian.h" 1 3 4
# 38 "/usr/include/endian.h" 2 3 4
# 214 "/usr/include/sys/types.h" 2 3 4


# 1 "/usr/include/sys/select.h" 1 3 4
# 31 "/usr/include/sys/select.h" 3 4
# 1 "/usr/include/bits/select.h" 1 3 4
# 32 "/usr/include/sys/select.h" 2 3 4


# 1 "/usr/include/bits/sigset.h" 1 3 4
# 23 "/usr/include/bits/sigset.h" 3 4
typedef int __sig_atomic_t;




typedef struct
  {
    unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
  } __sigset_t;
# 35 "/usr/include/sys/select.h" 2 3 4



typedef __sigset_t sigset_t;





# 1 "/usr/include/time.h" 1 3 4
# 118 "/usr/include/time.h" 3 4
struct timespec
  {
    __time_t tv_sec;
    long int tv_nsec;
  };
# 45 "/usr/include/sys/select.h" 2 3 4

# 1 "/usr/include/bits/time.h" 1 3 4
# 67 "/usr/include/bits/time.h" 3 4
struct timeval
  {
    __time_t tv_sec;
    __suseconds_t tv_usec;
  };
# 47 "/usr/include/sys/select.h" 2 3 4


typedef __suseconds_t suseconds_t;





typedef long int __fd_mask;
# 67 "/usr/include/sys/select.h" 3 4
typedef struct
  {






    __fd_mask __fds_bits[1024 / (8 * sizeof (__fd_mask))];


  } fd_set;






typedef __fd_mask fd_mask;
# 99 "/usr/include/sys/select.h" 3 4







extern int select (int __nfds, fd_set *__restrict __readfds,
     fd_set *__restrict __writefds,
     fd_set *__restrict __exceptfds,
     struct timeval *__restrict __timeout) ;
# 122 "/usr/include/sys/select.h" 3 4

# 217 "/usr/include/sys/types.h" 2 3 4


# 1 "/usr/include/sys/sysmacros.h" 1 3 4
# 220 "/usr/include/sys/types.h" 2 3 4
# 231 "/usr/include/sys/types.h" 3 4
typedef __blkcnt_t blkcnt_t;



typedef __fsblkcnt_t fsblkcnt_t;



typedef __fsfilcnt_t fsfilcnt_t;
# 266 "/usr/include/sys/types.h" 3 4
# 1 "/usr/include/bits/pthreadtypes.h" 1 3 4
# 23 "/usr/include/bits/pthreadtypes.h" 3 4
# 1 "/usr/include/bits/sched.h" 1 3 4
# 83 "/usr/include/bits/sched.h" 3 4
struct __sched_param
  {
    int __sched_priority;
  };
# 24 "/usr/include/bits/pthreadtypes.h" 2 3 4


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;





__extension__ typedef long long __pthread_cond_align_t;




typedef struct
{
  struct _pthread_fastlock __c_lock;
  _pthread_descr __c_waiting;
  char __padding[48 - sizeof (struct _pthread_fastlock)
   - sizeof (_pthread_descr) - sizeof (__pthread_cond_align_t)];
  __pthread_cond_align_t __align;
} 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;
# 150 "/usr/include/bits/pthreadtypes.h" 3 4
typedef unsigned long int pthread_t;
# 267 "/usr/include/sys/types.h" 2 3 4



# 415 "/usr/include/stdlib.h" 2 3 4






extern long int random (void) ;


extern void srandom (unsigned int __seed) ;





extern char *initstate (unsigned int __seed, char *__statebuf,
   size_t __statelen) ;



extern char *setstate (char *__statebuf) ;







struct random_data
  {
    int32_t *fptr;
    int32_t *rptr;
    int32_t *state;
    int rand_type;
    int rand_deg;
    int rand_sep;
    int32_t *end_ptr;
  };

extern int random_r (struct random_data *__restrict __buf,
       int32_t *__restrict __result) ;

extern int srandom_r (unsigned int __seed, struct random_data *__buf) ;

extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
   size_t __statelen,
   struct random_data *__restrict __buf) ;

extern int setstate_r (char *__restrict __statebuf,
         struct random_data *__restrict __buf) ;






extern int rand (void) ;

extern void srand (unsigned int __seed) ;




extern int rand_r (unsigned int *__seed) ;







extern double drand48 (void) ;
extern double erand48 (unsigned short int __xsubi[3]) ;


extern long int lrand48 (void) ;
extern long int nrand48 (unsigned short int __xsubi[3]) ;


extern long int mrand48 (void) ;
extern long int jrand48 (unsigned short int __xsubi[3]) ;


extern void srand48 (long int __seedval) ;
extern unsigned short int *seed48 (unsigned short int __seed16v[3]) ;
extern void lcong48 (unsigned short int __param[7]) ;





struct drand48_data
  {
    unsigned short int __x[3];
    unsigned short int __old_x[3];
    unsigned short int __c;
    unsigned short int __init;
    unsigned long long int __a;
  };


extern int drand48_r (struct drand48_data *__restrict __buffer,
        double *__restrict __result) ;
extern int erand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        double *__restrict __result) ;


extern int lrand48_r (struct drand48_data *__restrict __buffer,
        long int *__restrict __result) ;
extern int nrand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        long int *__restrict __result) ;


extern int mrand48_r (struct drand48_data *__restrict __buffer,
        long int *__restrict __result) ;
extern int jrand48_r (unsigned short int __xsubi[3],
        struct drand48_data *__restrict __buffer,
        long int *__restrict __result) ;


extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
     ;

extern int seed48_r (unsigned short int __seed16v[3],
       struct drand48_data *__buffer) ;

extern int lcong48_r (unsigned short int __param[7],
        struct drand48_data *__buffer) ;









extern void *malloc (size_t __size) __attribute__ ((__malloc__));

extern void *calloc (size_t __nmemb, size_t __size)
     __attribute__ ((__malloc__));







extern void *realloc (void *__ptr, size_t __size) __attribute__ ((__malloc__));

extern void free (void *__ptr) ;




extern void cfree (void *__ptr) ;



# 1 "/usr/include/alloca.h" 1 3 4
# 25 "/usr/include/alloca.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 26 "/usr/include/alloca.h" 2 3 4







extern void *alloca (size_t __size) ;






# 577 "/usr/include/stdlib.h" 2 3 4




extern void *valloc (size_t __size) __attribute__ ((__malloc__));
# 590 "/usr/include/stdlib.h" 3 4


extern void abort (void) __attribute__ ((__noreturn__));



extern int atexit (void (*__func) (void)) ;





extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
     ;






extern void exit (int __status) __attribute__ ((__noreturn__));

# 622 "/usr/include/stdlib.h" 3 4


extern char *getenv (__const char *__name) ;




extern char *__secure_getenv (__const char *__name) ;





extern int putenv (char *__string) ;





extern int setenv (__const char *__name, __const char *__value, int __replace)
     ;


extern int unsetenv (__const char *__name) ;






extern int clearenv (void) ;
# 661 "/usr/include/stdlib.h" 3 4
extern char *mktemp (char *__template) ;







extern int mkstemp (char *__template) ;
# 688 "/usr/include/stdlib.h" 3 4
extern char *mkdtemp (char *__template) ;





extern int system (__const char *__command) ;

# 712 "/usr/include/stdlib.h" 3 4
extern char *realpath (__const char *__restrict __name,
         char *__restrict __resolved) ;






typedef int (*__compar_fn_t) (__const void *, __const void *);









extern void *bsearch (__const void *__key, __const void *__base,
        size_t __nmemb, size_t __size, __compar_fn_t __compar);



extern void qsort (void *__base, size_t __nmemb, size_t __size,
     __compar_fn_t __compar);



extern int abs (int __x) __attribute__ ((__const__));
extern long int labs (long int __x) __attribute__ ((__const__));












extern div_t div (int __numer, int __denom)
     __attribute__ ((__const__));
extern ldiv_t ldiv (long int __numer, long int __denom)
     __attribute__ ((__const__));

# 776 "/usr/include/stdlib.h" 3 4
extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign) ;




extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign) ;




extern char *gcvt (double __value, int __ndigit, char *__buf) ;




extern char *qecvt (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign) ;
extern char *qfcvt (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign) ;
extern char *qgcvt (long double __value, int __ndigit, char *__buf) ;




extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign, char *__restrict __buf,
     size_t __len) ;
extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt,
     int *__restrict __sign, char *__restrict __buf,
     size_t __len) ;

extern int qecvt_r (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign,
      char *__restrict __buf, size_t __len) ;
extern int qfcvt_r (long double __value, int __ndigit,
      int *__restrict __decpt, int *__restrict __sign,
      char *__restrict __buf, size_t __len) ;







extern int mblen (__const char *__s, size_t __n) ;


extern int mbtowc (wchar_t *__restrict __pwc,
     __const char *__restrict __s, size_t __n) ;


extern int wctomb (char *__s, wchar_t __wchar) ;



extern size_t mbstowcs (wchar_t *__restrict __pwcs,
   __const char *__restrict __s, size_t __n) ;

extern size_t wcstombs (char *__restrict __s,
   __const wchar_t *__restrict __pwcs, size_t __n)
     ;








extern int rpmatch (__const char *__response) ;
# 908 "/usr/include/stdlib.h" 3 4
extern int getloadavg (double __loadavg[], int __nelem) ;






# 47 "matrix.c" 2
# 1 "/usr/include/string.h" 1 3 4
# 28 "/usr/include/string.h" 3 4





# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 34 "/usr/include/string.h" 2 3 4




extern void *memcpy (void *__restrict __dest,
       __const void *__restrict __src, size_t __n) ;


extern void *memmove (void *__dest, __const void *__src, size_t __n)
     ;






extern void *memccpy (void *__restrict __dest, __const void *__restrict __src,
        int __c, size_t __n)
     ;





extern void *memset (void *__s, int __c, size_t __n) ;


extern int memcmp (__const void *__s1, __const void *__s2, size_t __n)
     __attribute__ ((__pure__));


extern void *memchr (__const void *__s, int __c, size_t __n)
      __attribute__ ((__pure__));

# 80 "/usr/include/string.h" 3 4


extern char *strcpy (char *__restrict __dest, __const char *__restrict __src)
     ;

extern char *strncpy (char *__restrict __dest,
        __const char *__restrict __src, size_t __n) ;


extern char *strcat (char *__restrict __dest, __const char *__restrict __src)
     ;

extern char *strncat (char *__restrict __dest, __const char *__restrict __src,
        size_t __n) ;


extern int strcmp (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));

extern int strncmp (__const char *__s1, __const char *__s2, size_t __n)
     __attribute__ ((__pure__));


extern int strcoll (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));

extern size_t strxfrm (char *__restrict __dest,
         __const char *__restrict __src, size_t __n) ;

# 126 "/usr/include/string.h" 3 4
extern char *strdup (__const char *__s) __attribute__ ((__malloc__));
# 160 "/usr/include/string.h" 3 4


extern char *strchr (__const char *__s, int __c) __attribute__ ((__pure__));

extern char *strrchr (__const char *__s, int __c) __attribute__ ((__pure__));











extern size_t strcspn (__const char *__s, __const char *__reject)
     __attribute__ ((__pure__));


extern size_t strspn (__const char *__s, __const char *__accept)
     __attribute__ ((__pure__));

extern char *strpbrk (__const char *__s, __const char *__accept)
     __attribute__ ((__pure__));

extern char *strstr (__const char *__haystack, __const char *__needle)
     __attribute__ ((__pure__));



extern char *strtok (char *__restrict __s, __const char *__restrict __delim)
     ;




extern char *__strtok_r (char *__restrict __s,
    __const char *__restrict __delim,
    char **__restrict __save_ptr) ;

extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim,
         char **__restrict __save_ptr) ;
# 228 "/usr/include/string.h" 3 4


extern size_t strlen (__const char *__s) __attribute__ ((__pure__));

# 241 "/usr/include/string.h" 3 4


extern char *strerror (int __errnum) ;




extern char *strerror_r (int __errnum, char *__buf, size_t __buflen) ;




extern void __bzero (void *__s, size_t __n) ;



extern void bcopy (__const void *__src, void *__dest, size_t __n) ;


extern void bzero (void *__s, size_t __n) ;


extern int bcmp (__const void *__s1, __const void *__s2, size_t __n)
     __attribute__ ((__pure__));


extern char *index (__const char *__s, int __c) __attribute__ ((__pure__));


extern char *rindex (__const char *__s, int __c) __attribute__ ((__pure__));



extern int ffs (int __i) __attribute__ ((__const__));
# 287 "/usr/include/string.h" 3 4
extern int strcasecmp (__const char *__s1, __const char *__s2)
     __attribute__ ((__pure__));


extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n)
     __attribute__ ((__pure__));
# 309 "/usr/include/string.h" 3 4
extern char *strsep (char **__restrict __stringp,
       __const char *__restrict __delim) ;
# 379 "/usr/include/string.h" 3 4

# 48 "matrix.c" 2
# 1 "/usr/include/unistd.h" 1 3 4
# 28 "/usr/include/unistd.h" 3 4

# 175 "/usr/include/unistd.h" 3 4
# 1 "/usr/include/bits/posix_opt.h" 1 3 4
# 176 "/usr/include/unistd.h" 2 3 4
# 199 "/usr/include/unistd.h" 3 4
# 1 "/usr/lib/gcc/i486-slackware-linux/3.4.0/include/stddef.h" 1 3 4
# 200 "/usr/include/unistd.h" 2 3 4
# 240 "/usr/include/unistd.h" 3 4
typedef __intptr_t intptr_t;






typedef __socklen_t socklen_t;
# 260 "/usr/include/unistd.h" 3 4
extern int access (__const char *__name, int __type) ;
# 290 "/usr/include/unistd.h" 3 4
extern __off_t lseek (int __fd, __off_t __offset, int __whence) ;
# 306 "/usr/include/unistd.h" 3 4
extern int close (int __fd) ;



extern ssize_t read (int __fd, void *__buf, size_t __nbytes) ;


extern ssize_t write (int __fd, __const void *__buf, size_t __n) ;
# 353 "/usr/include/unistd.h" 3 4
extern int pipe (int __pipedes[2]) ;
# 362 "/usr/include/unistd.h" 3 4
extern unsigned int alarm (unsigned int __seconds) ;
# 371 "/usr/include/unistd.h" 3 4
extern unsigned int sleep (unsigned int __seconds) ;






extern __useconds_t ualarm (__useconds_t __value, __useconds_t __interval)
     ;



extern int usleep (__useconds_t __useconds) ;





extern int pause (void) ;



extern int chown (__const char *__file, __uid_t __owner, __gid_t __group)
     ;



extern int fchown (int __fd, __uid_t __owner, __gid_t __group) ;




extern int lchown (__const char *__file, __uid_t __owner, __gid_t __group)
     ;




extern int chdir (__const char *__path) ;



extern int fchdir (int __fd) ;
# 423 "/usr/include/unistd.h" 3 4
extern char *getcwd (char *__buf, size_t __size) ;
# 436 "/usr/include/unistd.h" 3 4
extern char *getwd (char *__buf) ;




extern int dup (int __fd) ;


extern int dup2 (int __fd, int __fd2) ;


extern char **__environ;







extern int execve (__const char *__path, char *__const __argv[],
     char *__const __envp[]) ;
# 467 "/usr/include/unistd.h" 3 4
extern int execv (__const char *__path, char *__const __argv[]) ;



extern int execle (__const char *__path, __const char *__arg, ...) ;



extern int execl (__const char *__path, __const char *__arg, ...) ;



extern int execvp (__const char *__file, char *__const __argv[]) ;




extern int execlp (__const char *__file, __const char *__arg, ...) ;




extern int nice (int __inc) ;




extern void _exit (int __status) __attribute__ ((__noreturn__));





# 1 "/usr/include/bits/confname.h" 1 3 4
# 25 "/usr/include/bits/confname.h" 3 4
enum
  {
    _PC_LINK_MAX,

    _PC_MAX_CANON,

    _PC_MAX_INPUT,

    _PC_NAME_MAX,

    _PC_PATH_MAX,

    _PC_PIPE_BUF,

    _PC_CHOWN_RESTRICTED,

    _PC_NO_TRUNC,

    _PC_VDISABLE,

    _PC_SYNC_IO,

    _PC_ASYNC_IO,

    _PC_PRIO_IO,

    _PC_SOCK_MAXBUF,

    _PC_FILESIZEBITS,

    _PC_REC_INCR_XFER_SIZE,

    _PC_REC_MAX_XFER_SIZE,

    _PC_REC_MIN_XFER_SIZE,

    _PC_REC_XFER_ALIGN,

    _PC_ALLOC_SIZE_MIN,

    _PC_SYMLINK_MAX

  };


enum
  {
    _SC_ARG_MAX,

    _SC_CHILD_MAX,

    _SC_CLK_TCK,

    _SC_NGROUPS_MAX,

    _SC_OPEN_MAX,

    _SC_STREAM_MAX,

    _SC_TZNAME_MAX,

    _SC_JOB_CONTROL,

    _SC_SAVED_IDS,

    _SC_REALTIME_SIGNALS,

    _SC_PRIORITY_SCHEDULING,

    _SC_TIMERS,

    _SC_ASYNCHRONOUS_IO,

    _SC_PRIORITIZED_IO,

    _SC_SYNCHRONIZED_IO,

    _SC_FSYNC,

    _SC_MAPPED_FILES,

    _SC_MEMLOCK,

    _SC_MEMLOCK_RANGE,

    _SC_MEMORY_PROTECTION,

    _SC_MESSAGE_PASSING,

    _SC_SEMAPHORES,

    _SC_SHARED_MEMORY_OBJECTS,

    _SC_AIO_LISTIO_MAX,

    _SC_AIO_MAX,

    _SC_AIO_PRIO_DELTA_MAX,

    _SC_DELAYTIMER_MAX,

    _SC_MQ_OPEN_MAX,

    _SC_MQ_PRIO_MAX,

    _SC_VERSION,

    _SC_PAGESIZE,


    _SC_RTSIG_MAX,

    _SC_SEM_NSEMS_MAX,

    _SC_SEM_VALUE_MAX,

    _SC_SIGQUEUE_MAX,

    _SC_TIMER_MAX,




    _SC_BC_BASE_MAX,

    _SC_BC_DIM_MAX,

    _SC_BC_SCALE_MAX,

    _SC_BC_STRING_MAX,

    _SC_COLL_WEIGHTS_MAX,

    _SC_EQUIV_CLASS_MAX,

    _SC_EXPR_NEST_MAX,

    _SC_LINE_MAX,

    _SC_RE_DUP_MAX,

    _SC_CHARCLASS_NAME_MAX,


    _SC_2_VERSION,

    _SC_2_C_BIND,

    _SC_2_C_DEV,

    _SC_2_FORT_DEV,

    _SC_2_FORT_RUN,

    _SC_2_SW_DEV,

    _SC_2_LOCALEDEF,


    _SC_PII,

    _SC_PII_XTI,

    _SC_PII_SOCKET,

    _SC_PII_INTERNET,

    _SC_PII_OSI,

    _SC_POLL,

    _SC_SELECT,

    _SC_UIO_MAXIOV,

    _SC_IOV_MAX = _SC_UIO_MAXIOV,

    _SC_PII_INTERNET_STREAM,

    _SC_PII_INTERNET_DGRAM,

    _SC_PII_OSI_COTS,

    _SC_PII_OSI_CLTS,

    _SC_PII_OSI_M,

    _SC_T_IOV_MAX,



    _SC_THREADS,

    _SC_THREAD_SAFE_FUNCTIONS,

    _SC_GETGR_R_SIZE_MAX,

    _SC_GETPW_R_SIZE_MAX,

    _SC_LOGIN_NAME_MAX,

    _SC_TTY_NAME_MAX,

    _SC_THREAD_DESTRUCTOR_ITERATIONS,

    _SC_THREAD_KEYS_MAX,

    _SC_THREAD_STACK_MIN,

    _SC_THREAD_THREADS_MAX,

    _SC_THREAD_ATTR_STACKADDR,

    _SC_THREAD_ATTR_STACKSIZE,

    _SC_THREAD_PRIORITY_SCHEDULING,

    _SC_THREAD_PRIO_INHERIT,

    _SC_THREAD_PRIO_PROTECT,

    _SC_THREAD_PROCESS_SHARED,


    _SC_NPROCESSORS_CONF,

    _SC_NPROCESSORS_ONLN,

    _SC_PHYS_PAGES,

    _SC_AVPHYS_PAGES,

    _SC_ATEXIT_MAX,

    _SC_PASS_MAX,


    _SC_XOPEN_VERSION,

    _SC_XOPEN_XCU_VERSION,

    _SC_XOPEN_UNIX,

    _SC_XOPEN_CRYPT,

    _SC_XOPEN_ENH_I18N,

    _SC_XOPEN_SHM,


    _SC_2_CHAR_TERM,

    _SC_2_C_VERSION,

    _SC_2_UPE,


    _SC_XOPEN_XPG2,

    _SC_XOPEN_XPG3,

    _SC_XOPEN_XPG4,


    _SC_CHAR_BIT,

    _SC_CHAR_MAX,

    _SC_CHAR_MIN,

    _SC_INT_MAX,

    _SC_INT_MIN,

    _SC_LONG_BIT,

    _SC_WORD_BIT,

    _SC_MB_LEN_MAX,

    _SC_NZERO,

    _SC_SSIZE_MAX,

    _SC_SCHAR_MAX,

    _SC_SCHAR_MIN,

    _SC_SHRT_MAX,

    _SC_SHRT_MIN,

    _SC_UCHAR_MAX,

    _SC_UINT_MAX,

    _SC_ULONG_MAX,

    _SC_USHRT_MAX,


    _SC_NL_ARGMAX,

    _SC_NL_LANGMAX,

    _SC_NL_MSGMAX,

    _SC_NL_NMAX,

    _SC_NL_SETMAX,

    _SC_NL_TEXTMAX,


    _SC_XBS5_ILP32_OFF32,

    _SC_XBS5_ILP32_OFFBIG,

    _SC_XBS5_LP64_OFF64,

    _SC_XBS5_LPBIG_OFFBIG,


    _SC_XOPEN_LEGACY,

    _SC_XOPEN_REALTIME,

    _SC_XOPEN_REALTIME_THREADS,


    _SC_ADVISORY_INFO,

    _SC_BARRIERS,

    _SC_BASE,

    _SC_C_LANG_SUPPORT,

    _SC_C_LANG_SUPPORT_R,

    _SC_CLOCK_SELECTION,

    _SC_CPUTIME,

    _SC_THREAD_CPUTIME,

    _SC_DEVICE_IO,

    _SC_DEVICE_SPECIFIC,

    _SC_DEVICE_SPECIFIC_R,

    _SC_FD_MGMT,

    _SC_FIFO,

    _SC_PIPE,

    _SC_FILE_ATTRIBUTES,

    _SC_FILE_LOCKING,

    _SC_FILE_SYSTEM,

    _SC_MONOTONIC_CLOCK,

    _SC_MULTI_PROCESS,

    _SC_SINGLE_PROCESS,

    _SC_NETWORKING,

    _SC_READER_WRITER_LOCKS,

    _SC_SPIN_LOCKS,

    _SC_REGEXP,

    _SC_REGEX_VERSION,

    _SC_SHELL,

    _SC_SIGNALS,

    _SC_SPAWN,

    _SC_SPORADIC_SERVER,

    _SC_THREAD_SPORADIC_SERVER,

    _SC_SYSTEM_DATABASE,

    _SC_SYSTEM_DATABASE_R,

    _SC_TIMEOUTS,

    _SC_TYPED_MEMORY_OBJECTS,

    _SC_USER_GROUPS,

    _SC_USER_GROUPS_R,

    _SC_2_PBS,

    _SC_2_PBS_ACCOUNTING,

    _SC_2_PBS_LOCATE,

    _SC_2_PBS_MESSAGE,

    _SC_2_PBS_TRACK,

    _SC_SYMLOOP_MAX,

    _SC_STREAMS,

    _SC_2_PBS_CHECKPOINT,


    _SC_V6_ILP32_OFF32,

    _SC_V6_ILP32_OFFBIG,

    _SC_V6_LP64_OFF64,

    _SC_V6_LPBIG_OFFBIG,


    _SC_HOST_NAME_MAX,

    _SC_TRACE,

    _SC_TRACE_EVENT_FILTER,

    _SC_TRACE_INHERIT,

    _SC_TRACE_LOG

  };


enum
  {
    _CS_PATH,


    _CS_V6_WIDTH_RESTRICTED_ENVS,


    _CS_GNU_LIBC_VERSION,

    _CS_GNU_LIBPTHREAD_VERSION,


    _CS_LFS_CFLAGS = 1000,

    _CS_LFS_LDFLAGS,

    _CS_LFS_LIBS,

    _CS_LFS_LINTFLAGS,

    _CS_LFS64_CFLAGS,

    _CS_LFS64_LDFLAGS,

    _CS_LFS64_LIBS,

    _CS_LFS64_LINTFLAGS,


    _CS_XBS5_ILP32_OFF32_CFLAGS = 1100,

    _CS_XBS5_ILP32_OFF32_LDFLAGS,

    _CS_XBS5_ILP32_OFF32_LIBS,

    _CS_XBS5_ILP32_OFF32_LINTFLAGS,

    _CS_XBS5_ILP32_OFFBIG_CFLAGS,

    _CS_XBS5_ILP32_OFFBIG_LDFLAGS,

    _CS_XBS5_ILP32_OFFBIG_LIBS,

    _CS_XBS5_ILP32_OFFBIG_LINTFLAGS,

    _CS_XBS5_LP64_OFF64_CFLAGS,

    _CS_XBS5_LP64_OFF64_LDFLAGS,

    _CS_XBS5_LP64_OFF64_LIBS,

    _CS_XBS5_LP64_OFF64_LINTFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_CFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_LDFLAGS,

    _CS_XBS5_LPBIG_OFFBIG_LIBS,

    _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,


    _CS_POSIX_V6_ILP32_OFF32_CFLAGS,

    _CS_POSIX_V6_ILP32_OFF32_LDFLAGS,

    _CS_POSIX_V6_ILP32_OFF32_LIBS,

    _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,

    _CS_POSIX_V6_ILP32_OFFBIG_LIBS,

    _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS,

    _CS_POSIX_V6_LP64_OFF64_CFLAGS,

    _CS_POSIX_V6_LP64_OFF64_LDFLAGS,

    _CS_POSIX_V6_LP64_OFF64_LIBS,

    _CS_POSIX_V6_LP64_OFF64_LINTFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,

    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS

  };
# 501 "/usr/include/unistd.h" 2 3 4


extern long int pathconf (__const char *__path, int __name) ;


extern long int fpathconf (int __fd, int __name) ;


extern long int sysconf (int __name) __attribute__ ((__const__));



extern size_t confstr (int __name, char *__buf, size_t __len) ;




extern __pid_t getpid (void) ;


extern __pid_t getppid (void) ;




extern __pid_t getpgrp (void) ;
# 536 "/usr/include/unistd.h" 3 4
extern __pid_t __getpgid (__pid_t __pid) ;
# 545 "/usr/include/unistd.h" 3 4
extern int setpgid (__pid_t __pid, __pid_t __pgid) ;
# 562 "/usr/include/unistd.h" 3 4
extern int setpgrp (void) ;
# 580 "/usr/include/unistd.h" 3 4
extern __pid_t setsid (void) ;







extern __uid_t getuid (void) ;


extern __uid_t geteuid (void) ;


extern __gid_t getgid (void) ;


extern __gid_t getegid (void) ;




extern int getgroups (int __size, __gid_t __list[]) ;
# 613 "/usr/include/unistd.h" 3 4
extern int setuid (__uid_t __uid) ;




extern int setreuid (__uid_t __ruid, __uid_t __euid) ;




extern int seteuid (__uid_t __uid) ;






extern int setgid (__gid_t __gid) ;




extern int setregid (__gid_t __rgid, __gid_t __egid) ;




extern int setegid (__gid_t __gid) ;
# 665 "/usr/include/unistd.h" 3 4
extern __pid_t fork (void) ;






extern __pid_t vfork (void) ;





extern char *ttyname (int __fd) ;



extern int ttyname_r (int __fd, char *__buf, size_t __buflen) ;



extern int isatty (int __fd) ;





extern int ttyslot (void) ;




extern int link (__const char *__from, __const char *__to) ;



extern int symlink (__const char *__from, __const char *__to) ;




extern int readlink (__const char *__restrict __path, char *__restrict __buf,
       size_t __len) ;



extern int unlink (__const char *__name) ;


extern int rmdir (__const char *__path) ;



extern __pid_t tcgetpgrp (int __fd) ;


extern int tcsetpgrp (int __fd, __pid_t __pgrp_id) ;



extern char *getlogin (void) ;
# 735 "/usr/include/unistd.h" 3 4
extern int setlogin (__const char *__name) ;
# 744 "/usr/include/unistd.h" 3 4
# 1 "/usr/include/getopt.h" 1 3 4
# 47 "/usr/include/getopt.h" 3 4
extern char *optarg;
# 61 "/usr/include/getopt.h" 3 4
extern int optind;




extern int opterr;



extern int optopt;
# 145 "/usr/include/getopt.h" 3 4
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts);
# 745 "/usr/include/unistd.h" 2 3 4







extern int gethostname (char *__name, size_t __len) ;






extern int sethostname (__const char *__name, size_t __len) ;



extern int sethostid (long int __id) ;





extern int getdomainname (char *__name, size_t __len) ;
extern int setdomainname (__const char *__name, size_t __len) ;





extern int vhangup (void) ;


extern int revoke (__const char *__file) ;







extern int profil (unsigned short int *__sample_buffer, size_t __size,
     size_t __offset, unsigned int __scale) ;





extern int acct (__const char *__name) ;



extern char *getusershell (void) ;
extern void endusershell (void) ;
extern void setusershell (void) ;





extern int daemon (int __nochdir, int __noclose) ;






extern int chroot (__const char *__path) ;



extern char *getpass (__const char *__prompt) ;





extern int fsync (int __fd) ;






extern long int gethostid (void) ;


extern void sync (void) ;




extern int getpagesize (void) __attribute__ ((__const__));




extern int truncate (__const char *__file, __off_t __length) ;
# 859 "/usr/include/unistd.h" 3 4
extern int ftruncate (int __fd, __off_t __length) ;
# 875 "/usr/include/unistd.h" 3 4
extern int getdtablesize (void) ;
# 884 "/usr/include/unistd.h" 3 4
extern int brk (void *__addr) ;





extern void *sbrk (intptr_t __delta) ;
# 905 "/usr/include/unistd.h" 3 4
extern long int syscall (long int __sysno, ...) ;
# 925 "/usr/include/unistd.h" 3 4
extern int lockf (int __fd, int __cmd, __off_t __len) ;
# 956 "/usr/include/unistd.h" 3 4
extern int fdatasync (int __fildes) ;
# 1001 "/usr/include/unistd.h" 3 4
extern int pthread_atfork (void (*__prepare) (void),
      void (*__parent) (void),
      void (*__child) (void)) ;



# 49 "matrix.c" 2
# 1 "matrix.h" 1
# 52 "matrix.h"



extern int mat_unity(int n, double a[n][n]);


extern int mat_cpy(int n, double a[n][n], double b[n][n]);


extern int mat_xform(int n, double m[n][n], double v[n], double mv[n]);


extern int mat_mul(int n, double a[n][n], double b[n][n], double ab[n][n]);


extern int mat_inv(int n, double m[n][n], double i[n][n]);


extern int mat_print(char *name, int n, double m[n][n]);


# 50 "matrix.c" 2
# 80 "matrix.c"
int mat_unity(int n, double a[n][n]);
int mat_cpy(int n, double a[n][n], double b[n][n]);
int mat_xform(int n, double m[n][n], double v[n], double mv[n]);
int mat_mul(int n, double a[n][n], double b[n][n], double ab[n][n]);
int mat_inv(int n, double m[n][n], double i[n][n]);
int mat_print(char *name, int n, double m[n][n]);



int mat_unity(int n, double a[n][n])
{
 int r, c;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 92,
__PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);
 for (r=0; r<n; r++) {
  for (c=0; c<n; c++) {
   if (r==c) {
    a[r][c] = 1.0;
   } else {
    a[r][c] = 0.0;
   }
  }
 }
 return 0;
}

int mat_cpy(int n, double a[n][n], double b[n][n])
{
 int r, c;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 109,
__PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);

 for (r=0; r<n; r++) {
  for (c=0; c<n; c++) {
   b[r][c] = a[r][c];
  }
 }
 return 0;
}

int mat_xf(int n, double m[n][n], double v[n], double mv[n])
{
 int r, c;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 123,
__PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);
 for (r=0; r<n; r++) {
  mv[r] = 0.0;
  for (c=0; c<n; c++) {
   mv[r] += m[r][c]*v[c];
  }
 }
 return 0;
}

int mat_mul(int n, double a[n][n], double b[n][n], double ab[n][n])
{
 int r, c, t;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 137,
__PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);
 for (r=0; r<n; r++) {
  for (c=0; c<n; c++) {
   ab[r][c] = 0.0;
   for (t=0; t<n; t++) {
    ab[r][c] += a[r][t]*b[t][c];
   }
   if (ab[r][c] < 1e-8) {
    ab[r][c] = 0.0;
   }
  }
 }
 return 0;
}

int mat_inv(int n, double m[n][n], double i[n][n])
{
 int r, c, t;
 double m2[n][n], inv[n][n], factor;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 157,
__PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);
 mat_cpy(n, m, m2);
 mat_unity(n, inv);



 for (t=0; t<n-1; t++) {
  if (m2[t][t] == 0) {
   return 2;
  }
  for (r=t+1; r<n; r++) {
   factor=m2[r][t]/m2[t][t];
   for (c=0; c<n; c++) {
    inv[r][c] -= factor*inv[t][c];
    if (c<=t) {
     m2[r][c]=0;
    } else {
     m2[r][c] -= factor*m2[t][c];
    }
   }
  }


 }



 for (t=n-1; t>0; t--) {
  for (r=t-1; r>=0; r--) {
   factor = m2[r][t]/m2[t][t];
   for (c=n-1; c>=0; c--) {
    if (c==t) {
     m2[r][c] = 0;
    }
    inv[r][c]-=factor*inv[t][c];
   }
  }


 }


 for (r=0; r<n; r++) {
  for (c=0; c<n; c++) {
   inv[r][c] /= m2[r][r];
  }
  m2[r][r] = 1.0;
 }


 mat_cpy(n, inv, i);
 return 0;
}

int mat_print(char *name, int n, double m[n][n])
{
 int r, c;
 ((void) ((n>0) ? 0 : (__assert_fail ("n>0", "matrix.c", 215,
__PRETTY_FUNCTION__), 0)));
 ((void) ((name!=((void *)0)) ? 0 : (__assert_fail ("name!=((void *)0)",
"matrix.c", 216, __PRETTY_FUNCTION__), 0)));
 if (!(n>0)) return (1);
 if (!(name!=((void *)0))) return (2);
 printf("matrix %s =\n", name);
 for (r=0; r<n; r++) {
  for (c=0; c<n; c++) {
   if (c==0) {
    printf("|%g ", m[r][c]);
   } else if (c==n-1) {
    printf("%g|\n", m[r][c]);
   } else {
    printf("%g ", m[r][c]);
   }
  }
 }
 return 0;
}

/*------------------- matrix.i -------------------*/

-- 
           Summary: -funit-at-a-time causes compilation of functions with
                    variable length arrays to fail
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rsmith at xs4all dot nl
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i486-slackware-linux
  GCC host triplet: i486-slackware-linux
GCC target triplet: i486-slackware-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug c/15114] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rsmith at xs4all dot nl]

------- Additional Comments From rsmith at xs4all dot nl  2004-04-24 12:21 -------
Created an attachment (id=6156)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6156&action=view)
preprocessed source code of the file producing the bug.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug c/15114] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-24 13:50 -------
I can confirm this but I do not know if this valid GNU C at all.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug c/15114] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[schwab at suse dot de]

------- Additional Comments From schwab at suse dot de  2004-04-24 14:56 -------
IMHO it is valid C99. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug c/15114] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rsmith at xs4all dot nl]

------- Additional Comments From rsmith at xs4all dot nl  2004-04-24 15:31 -------
Subject: Re:  -funit-at-a-time causes compilation of functions with variable length arrays to fail

On Sat, Apr 24, 2004 at 01:50:34PM -0000, pinskia at gcc dot gnu dot org wrote:
> 
> I can confirm this but I do not know if this valid GNU C at all.
> 

Variable Length Arrays are a C99 feature. The code in question compiled
without warnings with 3.3.3. 

It also matches one of the examples in the GCC info files. :-)

OTOH, the status page [http://gcc.gnu.org/gcc-3.4/c99status.html] lists
VLA's as "broken".

But as far as I can tell the compiled code works fine, just like it did
when compiled with 3.3.3. 

In my laymans eyes it looks like some kind of parser error, because it
complains about the function 'mat_unity' and then references the
definitions of other functions:

| matrix.c: In function `mat_unity':
The function mat_unity starts at line 89, and stops at line 104.

|matrix.c:106: error: prior parameter's size depends on 'n'
|matrix.c:106: error: prior parameter's size depends on 'n'
|matrix.c:106: error: prior parameter's size depends on 'n'
|matrix.c:106: error: prior parameter's size depends on 'n'
|...

Line 106 is the start of the function mat_cpy.

Just guessing, but maybe the parser forgets to close the function context
when -funit-at-a-time is active?

I'm using -fno-unit-at-a-time as a workaround, but "this scheme may not be
supported by future releases of GCC" according to
[http://gcc.gnu.org/gcc-3.4/changes.html].

Roland


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug optimization/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-04-25 13:38 -------
Here's a simple testcase: 
--------------- 
void foo (int n, double a[n][n]) {} 
void bar (int n, double a[n][n]) {} 
--------------- 
 
g/x> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -c a.i  
 
g/x> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -c -O2 a.i  
a.i: In function `foo': 
a.i:2: error: prior parameter's size depends on 'n' 
a.i:2: error: prior parameter's size depends on 'n' 
 
One actually needs two function definitions, and as has previously 
been observed: the error message refers to function 'foo', but 
prints line 2, which is in function 'bar'. This leads me to 
speculate that unit-at-a-time somehow manages to confuse the 
arguments of the two function declarations. 
 
Jan, this is your field, would you mind taking a look? 
 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
          Component|c                           |optimization
     Ever Confirmed|                            |1
      Known to fail|                            |3.4.0 3.5.0
      Known to work|                            |3.3.4
   Last reconfirmed|0000-00-00 00:00:00         |2004-04-25 13:38:16
               date|                            |
            Summary|-funit-at-a-time causes     |[3.4/3.5 regression] -funit-
                   |compilation of functions    |at-a-time causes compilation
                   |with variable length arrays |of functions with variable
                   |to fail                     |length arrays to fail
   Target Milestone|---                         |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug optimization/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-25 13:56 -------
It has nothing to do with getting the parameter decls mixed up but the problem is that the RTL for the 
parameter has not be made yet, why it works with one function is most likely unit-at-a-time acts as 
non-unit-at-a-time mode. 


Breakpoint 4, expand_expr_real_1 (exp=0x41650180, target=0x41654738, tmode=VOIDmode, 
modifier=EXPAND_NORMAL, alt_rtl=0x0) at /Users/pinskia/src/gcc-tree-ssa/gcc/gcc/expr.c:6510
6510          if (!DECL_RTL_SET_P (exp))
(gdb) p debug_generic_expr (exp)
n<D1083>
$1 = void
(gdb) continue
Continuing.

Breakpoint 4, expand_expr_real_1 (exp=0x41650180, target=0x41654768, tmode=VOIDmode, 
modifier=EXPAND_NORMAL, alt_rtl=0x0) at /Users/pinskia/src/gcc-tree-ssa/gcc/gcc/expr.c:6510
6510          if (!DECL_RTL_SET_P (exp))
(gdb) p debug_generic_expr (exp)
n<D1083>
$2 = void
(gdb) continue
Continuing.

Breakpoint 4, expand_expr_real_1 (exp=0x41650780, target=0x41654798, tmode=VOIDmode, 
modifier=EXPAND_NORMAL, alt_rtl=0x0) at /Users/pinskia/src/gcc-tree-ssa/gcc/gcc/expr.c:6510
6510          if (!DECL_RTL_SET_P (exp))
(gdb) p debug_generic_expr (exp)
n<D1087>
$3 = void
(gdb) continue
Continuing.

pr15114.c: In function `foo':
pr15114.c:2: error: prior parameter's size depends on 'n'

Breakpoint 4, expand_expr_real_1 (exp=0x41650780, target=0x416547c8, tmode=VOIDmode, 
modifier=EXPAND_NORMAL, alt_rtl=0x0) at /Users/pinskia/src/gcc-tree-ssa/gcc/gcc/expr.c:6510
6510          if (!DECL_RTL_SET_P (exp))
(gdb) p debug_generic_expr (exp)
n<D1087>
$4 = void
(gdb) continue

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug optimization/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-27 15:32 -------
*** Bug 15170 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ilgis at num dot uni-sb dot
                   |                            |de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug optimization/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rth at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rth at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-06-21 21:35 -------
Jan, Richard -- we need a solution to this problem.  What's the status?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rth at redhat dot com]

------- Additional Comments From rth at redhat dot com  2004-06-21 21:47 -------
Subject: Re:  [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

On Mon, Jun 21, 2004 at 09:35:21PM -0000, mmitchel at gcc dot gnu dot org wrote:
> Jan, Richard -- we need a solution to this problem.  What's the status?

Incredibly nasty.  I may be able to come up with some hack for 3.4.2,
but 3.5 will require large reorganizations of assign_parms.


r~


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4/3.5 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-06-22 08:20 -------
Postponed until GCC 3.4.2 sinc RTH things this is going to be very hard to fix.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.1                       |3.4.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-07-29 15:05 -------
Broken
: Search converges between 2003-09-04-trunk (#342) and 2003-09-05-trunk (#343).

Fixed on the mainline
: Search converges between 2004-07-02-trunk (#477) and 2004-07-04-trunk (#478).

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|3.4.0 3.5.0                 |3.4.0
      Known to work|3.3.4                       |3.3.4 3.5.0
            Summary|[3.4/3.5 regression] -funit-|[3.4 regression] -funit-at-
                   |at-a-time causes compilation|a-time causes compilation of
                   |of functions with variable  |functions with variable
                   |length arrays to fail       |length arrays to fail


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-08-29 18:22 -------
Postponed until GCC 3.5.0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.2                       |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2004-09-02 07:23 -------
Fixed for 3.5; not planning to work on it for 3.4.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|rth at gcc dot gnu dot org  |unassigned at gcc dot gnu
                   |                            |dot org
             Status|ASSIGNED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [4.0 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-09 20:36 -------
Fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to work|3.3.4 3.5.0                 |3.3.4 4.0
         Resolution|                            |FIXED
            Summary|[3.4 regression] -funit-at- |[4.0 regression] -funit-at-
                   |a-time causes compilation of|a-time causes compilation of
                   |functions with variable     |functions with variable
                   |length arrays to fail       |length arrays to fail


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-26 21:15 -------
*** Bug 17682 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-30 15:18 -------
*** Bug 17750 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bashley at myrealbox dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114

[Bug middle-end/15114] [3.4 regression] -funit-at-a-time causes compilation of functions with variable length arrays to fail

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-12-16 16:50 -------
*** Bug 19033 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bonzo at lib dot msu dot ru


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15114