[Bug c/14330] New: using -O3 causes a core whereas -O2 and under work

[Bug c/14330] New: using -O3 causes a core whereas -O2 and under work

[ml at slack dot net]

The code is from erlang configure: fpe-conftest.c. Compiling said file using -O3
causes it to core whereas using -O2 or under works fine.

system: Solaris x86 5.8

command line: gcc -O3 fpe-conftest.c; a.out # gives a core files
              gcc -O2 fpe-conftest.c; a.out # works file

fpe-conftest.i: gcc -O3 | gcc -O2 | gcc fpe-conftest.c produce the same .i files
# 1 "fpe-test.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "fpe-test.c"

# 1 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 1 3 4
# 14 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
# 1 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdarg.h" 1 3 4
# 43 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 15 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 2 3 4
# 34 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
#pragma ident "@(#)stdio.h	1.78	99/12/08 SMI" 

# 1 "/usr/include/iso/stdio_iso.h" 1 3 4
# 32 "/usr/include/iso/stdio_iso.h" 3 4
#pragma ident "@(#)stdio_iso.h	1.2	99/10/25 SMI"


# 1 "/usr/include/sys/feature_tests.h" 1 3 4
# 13 "/usr/include/sys/feature_tests.h" 3 4
#pragma ident "@(#)feature_tests.h	1.18	99/07/26 SMI"

# 1 "/usr/include/sys/isa_defs.h" 1 3 4
# 9 "/usr/include/sys/isa_defs.h" 3 4
#pragma ident "@(#)isa_defs.h	1.20	99/05/04 SMI"
# 16 "/usr/include/sys/feature_tests.h" 2 3 4
# 36 "/usr/include/iso/stdio_iso.h" 2 3 4
# 1 "/usr/include/sys/va_list.h" 1 3 4
# 9 "/usr/include/sys/va_list.h" 3 4
#pragma ident "@(#)va_list.h	1.12	99/05/04 SMI"
# 26 "/usr/include/sys/va_list.h" 3 4
typedef void *__va_list;
# 37 "/usr/include/iso/stdio_iso.h" 2 3 4
# 1 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio_tag.h" 1 3 4
# 18 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio_tag.h" 3 4
#pragma ident "@(#)stdio_tag.h	1.3	98/04/20 SMI"
# 30 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio_tag.h" 3 4
typedef struct __FILE __FILE;
# 38 "/usr/include/iso/stdio_iso.h" 2 3 4
# 1 "/usr/include/stdio_impl.h" 1 3 4
# 9 "/usr/include/stdio_impl.h" 3 4
#pragma ident "@(#)stdio_impl.h	1.8	99/06/10 SMI"
# 22 "/usr/include/stdio_impl.h" 3 4
typedef int ssize_t;
# 38 "/usr/include/stdio_impl.h" 3 4
struct __FILE
{




        ssize_t _cnt;
        unsigned char *_ptr;

        unsigned char *_base;
        unsigned char _flag;
        unsigned char _file;
        unsigned __orientation:2;
        unsigned __ionolock:1;
        unsigned __filler:5;
};
# 39 "/usr/include/iso/stdio_iso.h" 2 3 4
# 59 "/usr/include/iso/stdio_iso.h" 3 4
typedef long long __longlong_t;
# 75 "/usr/include/iso/stdio_iso.h" 3 4
typedef __FILE FILE;







typedef unsigned int size_t;




typedef long fpos_t;
# 147 "/usr/include/iso/stdio_iso.h" 3 4
extern __FILE __iob[60];
# 164 "/usr/include/iso/stdio_iso.h" 3 4
extern int remove(const char *);
extern int rename(const char *, const char *);
extern FILE *tmpfile(void);
extern char *tmpnam(char *);
extern int fclose(FILE *);
extern int fflush(FILE *);
extern FILE *fopen(const char *, const char *);
extern FILE *freopen(const char *, const char *, FILE *);
extern void setbuf(FILE *, char *);
extern int setvbuf(FILE *, char *, int, size_t);

extern int fprintf(FILE *, const char *, ...);

extern int fscanf(FILE *, const char *, ...);

extern int printf(const char *, ...);

extern int scanf(const char *, ...);

extern int sprintf(char *, const char *, ...);

extern int sscanf(const char *, const char *, ...);
extern int vfprintf(FILE *, const char *, __va_list);
extern int vprintf(const char *, __va_list);
extern int vsprintf(char *, const char *, __va_list);
extern int fgetc(FILE *);
extern char *fgets(char *, int, FILE *);
extern int fputc(int, FILE *);
extern int fputs(const char *, FILE *);


extern int getc(FILE *);
extern int putc(int, FILE *);



extern int getchar(void);
extern int putchar(int);

extern char *gets(char *);
extern int puts(const char *);
extern int ungetc(int, FILE *);
extern size_t fread(void *, size_t, size_t, FILE *);
extern size_t fwrite(const void *, size_t, size_t, FILE *);
extern int fgetpos(FILE *, fpos_t *);
extern int fseek(FILE *, long, int);
extern int fsetpos(FILE *, const fpos_t *);
extern long ftell(FILE *);
extern void rewind(FILE *);


extern void clearerr(FILE *);
extern int feof(FILE *);
extern int ferror(FILE *);

extern void perror(const char *);


extern int __filbuf(FILE *);
extern int __flsbuf(int, FILE *);
# 37 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 2 3 4
# 105 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
typedef long off_t;







typedef __longlong_t off64_t;
# 123 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
typedef __longlong_t fpos64_t;
# 151 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern unsigned char _sibuf[], _sobuf[];
# 193 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern unsigned char *_bufendtab[];
extern FILE *_lastbuf;
# 229 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern void setbuffer(FILE *, char *, size_t);
extern int setlinebuf(FILE *);





extern int snprintf(char *, size_t, const char *, ...);




extern int vsnprintf(char *, size_t, const char *, __gnuc_va_list);
# 250 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern FILE *fdopen(int, const char *);
extern char *ctermid(char *);
extern int fileno(FILE *);
# 276 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern FILE *popen(const char *, const char *);
extern char *cuserid(char *);
extern char *tempnam(const char *, const char *);
extern int getopt(int, char *const *, const char *);

extern int getsubopt(char **, char *const *, char **);

extern char *optarg;
extern int optind, opterr, optopt;
extern int getw(FILE *);
extern int putw(int, FILE *);
extern int pclose(FILE *);







extern int fseeko(FILE *, off_t, int);
extern off_t ftello(FILE *);
# 305 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/stdio.h" 3 4
extern FILE *fopen64(const char *, const char *);
extern FILE *freopen64(const char *, const char *, FILE *);
extern FILE *tmpfile64(void);
extern int fgetpos64(FILE *, fpos64_t *);
extern int fsetpos64(FILE *, const fpos64_t *);
extern int fseeko64(FILE *, off64_t, int);
extern off64_t ftello64(FILE *);
# 3 "fpe-test.c" 2
# 1 "/usr/include/signal.h" 1 3 4
# 17 "/usr/include/signal.h" 3 4
#pragma ident "@(#)signal.h	1.38	99/08/10 SMI" 





# 1 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 1 3 4
# 26 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
#pragma ident "@(#)types.h	1.69	03/08/07 SMI"







# 1 "/usr/include/sys/machtypes.h" 1 3 4
# 9 "/usr/include/sys/machtypes.h" 3 4
#pragma ident "@(#)machtypes.h	1.8	99/05/04 SMI"





# 1 "/usr/include/ia32/sys/machtypes.h" 1 3 4
# 9 "/usr/include/ia32/sys/machtypes.h" 3 4
#pragma ident "@(#)machtypes.h	1.1	99/05/04 SMI"
# 24 "/usr/include/ia32/sys/machtypes.h" 3 4
typedef struct _label_t { long val[6]; } label_t;



typedef unsigned char lock_t;
# 16 "/usr/include/sys/machtypes.h" 2 3 4
# 35 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h"
2 3 4
# 46 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
# 1 "/usr/include/sys/int_types.h" 1 3 4
# 9 "/usr/include/sys/int_types.h" 3 4
#pragma ident "@(#)int_types.h	1.6	97/08/20 SMI"
# 62 "/usr/include/sys/int_types.h" 3 4
typedef char int8_t;





typedef short int16_t;
typedef int int32_t;




typedef long long int64_t;



typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;




typedef unsigned long long uint64_t;
# 94 "/usr/include/sys/int_types.h" 3 4
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
# 110 "/usr/include/sys/int_types.h" 3 4
typedef int intptr_t;
typedef unsigned int uintptr_t;







typedef char int_least8_t;





typedef short int_least16_t;
typedef int int_least32_t;




typedef long long int_least64_t;



typedef unsigned char uint_least8_t;
typedef unsigned short uint_least16_t;
typedef unsigned int uint_least32_t;




typedef unsigned long long uint_least64_t;
# 47 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h"
2 3 4
# 63 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef long long longlong_t;
typedef unsigned long long u_longlong_t;
# 86 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef long t_scalar_t;
typedef unsigned long t_uscalar_t;





typedef unsigned char uchar_t;
typedef unsigned short ushort_t;
typedef unsigned int uint_t;
typedef unsigned long ulong_t;

typedef char *caddr_t;
typedef long daddr_t;
typedef short cnt_t;


typedef ulong_t paddr_t;
# 119 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef int ptrdiff_t;
# 128 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef ulong_t pfn_t;
typedef ulong_t pgcnt_t;
typedef long spgcnt_t;

typedef uchar_t use_t;
typedef short sysid_t;
typedef short index_t;
typedef void *timeout_id_t;
typedef void *bufcall_id_t;
# 166 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef ulong_t ino_t;
typedef long blkcnt_t;
typedef ulong_t fsblkcnt_t;
typedef ulong_t fsfilcnt_t;
# 184 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef u_longlong_t ino64_t;
typedef longlong_t blkcnt64_t;
typedef u_longlong_t fsblkcnt64_t;
typedef u_longlong_t fsfilcnt64_t;






typedef long blksize_t;





typedef enum { B_FALSE, B_TRUE } boolean_t;
# 211 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef int64_t pad64_t;
typedef uint64_t upad64_t;
# 224 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef longlong_t offset_t;
typedef u_longlong_t u_offset_t;
typedef u_longlong_t len_t;
typedef longlong_t diskaddr_t;







typedef union {
        offset_t _f;
        struct {
                int32_t _l;
                int32_t _u;
        } _p;
} lloff_t;
# 255 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef union {
        diskaddr_t _f;
        struct {
                int32_t _l;
                int32_t _u;
        } _p;
} lldaddr_t;
# 274 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef uint_t k_fltset_t;
# 288 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef long id_t;






typedef uint_t useconds_t;



typedef long suseconds_t;
# 309 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef ulong_t major_t;
typedef ulong_t minor_t;





typedef short pri_t;
# 329 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef ushort_t o_mode_t;
typedef short o_dev_t;
typedef ushort_t o_uid_t;
typedef o_uid_t o_gid_t;
typedef short o_nlink_t;
typedef short o_pid_t;
typedef ushort_t o_ino_t;





typedef int key_t;



typedef ulong_t mode_t;







typedef long uid_t;



typedef uid_t gid_t;

typedef id_t taskid_t;
typedef id_t projid_t;






typedef uint_t pthread_t;
typedef uint_t pthread_key_t;

typedef struct _pthread_mutex {
        struct {
                uint16_t __pthread_mutex_flag1;
                uint8_t __pthread_mutex_flag2;
                uint8_t __pthread_mutex_ceiling;
                uint16_t __pthread_mutex_type;
                uint16_t __pthread_mutex_magic;
        } __pthread_mutex_flags;
        union {
                struct {
                        uint8_t __pthread_mutex_pad[8];
                } __pthread_mutex_lock64;
                struct {
                        uint32_t __pthread_ownerpid;
                        uint32_t __pthread_lockword;
                } __pthread_mutex_lock32;
                upad64_t __pthread_mutex_owner64;
        } __pthread_mutex_lock;
        upad64_t __pthread_mutex_data;
} pthread_mutex_t;

typedef struct _pthread_cond {
        struct {
                uint8_t __pthread_cond_flag[4];
                uint16_t __pthread_cond_type;
                uint16_t __pthread_cond_magic;
        } __pthread_cond_flags;
        upad64_t __pthread_cond_data;
} pthread_cond_t;




typedef struct _pthread_rwlock {
        int32_t __pthread_rwlock_readers;
        uint16_t __pthread_rwlock_type;
        uint16_t __pthread_rwlock_magic;
        upad64_t __pthread_rwlock_pad1[3];
        upad64_t __pthread_rwlock_pad2[2];
        upad64_t __pthread_rwlock_pad3[2];
} pthread_rwlock_t;




typedef struct _pthread_attr {
        void *__pthread_attrp;
} pthread_attr_t;




typedef struct _pthread_mutexattr {
        void *__pthread_mutexattrp;
} pthread_mutexattr_t;




typedef struct _pthread_condattr {
        void *__pthread_condattrp;
} pthread_condattr_t;




typedef struct _once {
        upad64_t __pthread_once_pad[4];
} pthread_once_t;





typedef struct _pthread_rwlockattr {
        void *__pthread_rwlockattrp;
} pthread_rwlockattr_t;

typedef ulong_t dev_t;





typedef ulong_t nlink_t;
typedef long pid_t;
# 486 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef long time_t;




typedef long clock_t;




typedef int clockid_t;




typedef int timer_t;






typedef unsigned char unchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
# 562 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 3 4
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
typedef struct _quad { int val[2]; } quad_t;
typedef quad_t quad;






# 1 "/usr/include/sys/select.h" 1 3 4
# 12 "/usr/include/sys/select.h" 3 4
#pragma ident "@(#)select.h	1.16	98/04/27 SMI" 




# 1 "/usr/include/sys/time.h" 1 3 4
# 23 "/usr/include/sys/time.h" 3 4
#pragma ident "@(#)time.h	2.67	03/08/07 SMI" 
# 50 "/usr/include/sys/time.h" 3 4
struct timeval {
        time_t tv_sec;
        suseconds_t tv_usec;
};
# 83 "/usr/include/sys/time.h" 3 4
struct timezone {
        int tz_minuteswest;
        int tz_dsttime;
};
# 101 "/usr/include/sys/time.h" 3 4
# 1 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h" 1 3 4
# 102 "/usr/include/sys/time.h" 2 3 4
# 156 "/usr/include/sys/time.h" 3 4
struct itimerval {
        struct timeval it_interval;
        struct timeval it_value;
};
# 204 "/usr/include/sys/time.h" 3 4
typedef longlong_t hrtime_t;
# 321 "/usr/include/sys/time.h" 3 4
int adjtime(struct timeval *, struct timeval *);
# 332 "/usr/include/sys/time.h" 3 4
int getitimer(int, struct itimerval *);
int utimes(const char *, const struct timeval *);



int setitimer(int, struct itimerval *, struct itimerval *);
# 370 "/usr/include/sys/time.h" 3 4
int settimeofday(struct timeval *, void *);

hrtime_t gethrtime(void);
hrtime_t gethrvtime(void);
# 390 "/usr/include/sys/time.h" 3 4
int gettimeofday(struct timeval *, void *);
# 411 "/usr/include/sys/time.h" 3 4
# 1 "/usr/include/time.h" 1 3 4
# 16 "/usr/include/time.h" 3 4
#pragma ident "@(#)time.h	1.39	99/08/10 SMI" 



# 1 "/usr/include/iso/time_iso.h" 1 3 4
# 28 "/usr/include/iso/time_iso.h" 3 4
#pragma ident "@(#)time_iso.h	1.1	99/08/09 SMI" 
# 69 "/usr/include/iso/time_iso.h" 3 4
struct tm {
        int tm_sec;
        int tm_min;
        int tm_hour;
        int tm_mday;
        int tm_mon;
        int tm_year;
        int tm_wday;
        int tm_yday;
        int tm_isdst;
};




extern char *asctime(const struct tm *);
extern clock_t clock(void);
extern char *ctime(const time_t *);
extern double difftime(time_t, time_t);
extern struct tm *gmtime(const time_t *);
extern struct tm *localtime(const time_t *);
extern time_t mktime(struct tm *);
extern time_t time(time_t *);
extern size_t strftime(char *, size_t, const char *, const struct tm *);
# 21 "/usr/include/time.h" 2 3 4
# 67 "/usr/include/time.h" 3 4
extern char *strptime(const char *, const char *, struct tm *);
# 83 "/usr/include/time.h" 3 4
# 1 "/usr/include/sys/time_impl.h" 1 3 4
# 15 "/usr/include/sys/time_impl.h" 3 4
#pragma ident "@(#)time_impl.h	1.5	99/10/05 SMI"
# 36 "/usr/include/sys/time_impl.h" 3 4
typedef struct timespec {
        time_t tv_sec;
        long tv_nsec;
} timespec_t;
# 60 "/usr/include/sys/time_impl.h" 3 4
typedef struct timespec timestruc_t;
# 79 "/usr/include/sys/time_impl.h" 3 4
typedef struct itimerspec {
        struct timespec it_interval;
        struct timespec it_value;
} itimerspec_t;
# 84 "/usr/include/time.h" 2 3 4
# 98 "/usr/include/time.h" 3 4
union sigval {
        int sival_int;
        void *sival_ptr;
};




struct sigevent {
        int sigev_notify;
        int sigev_signo;
        union sigval sigev_value;
        void (*sigev_notify_function)(union sigval);
        pthread_attr_t *sigev_notify_attributes;
        int __sigev_pad2;
};


extern int clock_getres(clockid_t, struct timespec *);
extern int clock_gettime(clockid_t, struct timespec *);
extern int clock_settime(clockid_t, const struct timespec *);
extern int timer_create(clockid_t, struct sigevent *, timer_t *);
extern int timer_delete(timer_t);
extern int timer_getoverrun(timer_t);
extern int timer_gettime(timer_t, struct itimerspec *);
extern int timer_settime(timer_t, int, const struct itimerspec *,
                struct itimerspec *);
extern int nanosleep(const struct timespec *, struct timespec *);




extern void tzset(void);

extern char *tzname[2];


extern long _sysconf(int);






extern long timezone;
extern int daylight;





extern int cftime(char *, char *, const time_t *);
extern int ascftime(char *, const char *, const struct tm *);
extern long altzone;




extern struct tm *getdate(const char *);






extern int getdate_err;
# 412 "/usr/include/sys/time.h" 2 3 4
# 424 "/usr/include/sys/time.h" 3 4
# 1 "/usr/include/sys/select.h" 1 3 4
# 425 "/usr/include/sys/time.h" 2 3 4
# 18 "/usr/include/sys/select.h" 2 3 4
# 45 "/usr/include/sys/select.h" 3 4
typedef long fd_mask;

typedef long fds_mask;
# 73 "/usr/include/sys/select.h" 3 4
typedef struct fd_set {



        long fds_bits[(((1024)+(((sizeof (fds_mask) * 8))-1))/((sizeof
(fds_mask) * 8)))];
} fd_set;
# 97 "/usr/include/sys/select.h" 3 4
extern int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
# 575 "/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/sys/types.h"
2 3 4
# 24 "/usr/include/signal.h" 2 3 4


# 1 "/usr/include/iso/signal_iso.h" 1 3 4
# 28 "/usr/include/iso/signal_iso.h" 3 4
#pragma ident "@(#)signal_iso.h	1.1	99/08/09 SMI"


# 1 "/usr/include/sys/iso/signal_iso.h" 1 3 4
# 28 "/usr/include/sys/iso/signal_iso.h" 3 4
#pragma ident "@(#)signal_iso.h	1.1	99/08/09 SMI" 

# 1 "/usr/include/sys/unistd.h" 1 3 4
# 25 "/usr/include/sys/unistd.h" 3 4
#pragma ident "@(#)unistd.h	1.37	98/10/28 SMI" 
# 31 "/usr/include/sys/iso/signal_iso.h" 2 3 4
# 80 "/usr/include/sys/iso/signal_iso.h" 3 4
extern long _sysconf(int);
# 32 "/usr/include/iso/signal_iso.h" 2 3 4
# 41 "/usr/include/iso/signal_iso.h" 3 4
typedef int sig_atomic_t;






extern void (*signal(int, void (*)(int)))(int);

extern int raise(int);
# 27 "/usr/include/signal.h" 2 3 4
# 1 "/usr/include/sys/signal.h" 1 3 4
# 16 "/usr/include/sys/signal.h" 3 4
#pragma ident "@(#)signal.h	1.54	99/07/26 SMI" 
# 35 "/usr/include/sys/signal.h" 3 4
# 1 "/usr/include/sys/siginfo.h" 1 3 4
# 16 "/usr/include/sys/siginfo.h" 3 4
#pragma ident "@(#)siginfo.h	1.54	98/03/27 SMI" 
# 126 "/usr/include/sys/siginfo.h" 3 4
# 1 "/usr/include/sys/machsig.h" 1 3 4
# 16 "/usr/include/sys/machsig.h" 3 4
#pragma ident "@(#)machsig.h	1.10	99/08/15 SMI"
# 39 "/usr/include/sys/machsig.h" 3 4
# 1 "/usr/include/vm/faultcode.h" 1 3 4
# 34 "/usr/include/vm/faultcode.h" 3 4
#pragma ident "@(#)faultcode.h	1.15	92/07/14 SMI" 
# 60 "/usr/include/vm/faultcode.h" 3 4
typedef int faultcode_t;
# 40 "/usr/include/sys/machsig.h" 2 3 4
# 127 "/usr/include/sys/siginfo.h" 2 3 4
# 221 "/usr/include/sys/siginfo.h" 3 4
typedef struct siginfo {



        int si_signo;
        int si_code;
        int si_errno;



        union {

                int __pad[((128 / sizeof (int)) - 3)];

                struct {
                        pid_t __pid;
                        union {
                                struct {
                                        uid_t __uid;


                                        union sigval __value;



                                } __kill;
                                struct {
                                        clock_t __utime;
                                        int __status;
                                        clock_t __stime;
                                } __cld;
                        } __pdata;
                } __proc;

                struct {
                        void *__addr;
                        int __trapno;
                        caddr_t __pc;
                } __fault;

                struct {

                        int __fd;
                        long __band;
                } __file;

                struct {
                        caddr_t __faddr;


                        timestruc_t __tstamp;



                        short __syscall;
                        char __nsysarg;
                        char __fault;
                        long __sysarg[8];
                        int __mstate[10];
                } __prof;

        } __data;

} siginfo_t;
# 354 "/usr/include/sys/siginfo.h" 3 4
typedef struct k_siginfo {
        int si_signo;
        int si_code;
        int si_errno;



        union {
                struct {
                        pid_t __pid;
                        union {
                                struct {
                                        uid_t __uid;
                                        union sigval __value;
                                } __kill;
                                struct {
                                        clock_t __utime;
                                        int __status;
                                        clock_t __stime;
                                } __cld;
                        } __pdata;
                } __proc;

                struct {
                        void *__addr;
                        int __trapno;
                        caddr_t __pc;
                } __fault;

                struct {

                        int __fd;
                        long __band;
                } __file;

                struct {
                        caddr_t __faddr;



                        timestruc_t __tstamp;



                        short __syscall;
                        char __nsysarg;
                        char __fault;



                } __prof;

        } __data;

} k_siginfo_t;

typedef struct sigqueue {
        struct sigqueue *sq_next;
        k_siginfo_t sq_info;
        void (*sq_func)(struct sigqueue *);
        void *sq_backptr;

} sigqueue_t;
# 36 "/usr/include/sys/signal.h" 2 3 4






typedef struct {
        unsigned int __sigbits[4];
} sigset_t;
# 58 "/usr/include/sys/signal.h" 3 4
typedef struct {
        unsigned int __sigbits[2];
} k_sigset_t;
# 76 "/usr/include/sys/signal.h" 3 4
struct sigaction {
        int sa_flags;
        union {



                void (*_handler)();




                void (*_sigaction)(int, siginfo_t *, void *);

        } _funcptr;
        sigset_t sa_mask;

        int sa_resv[2];

};
# 173 "/usr/include/sys/signal.h" 3 4
typedef struct sigaltstack {



        void *ss_sp;
        size_t ss_size;
        int ss_flags;
} stack_t;
# 202 "/usr/include/sys/signal.h" 3 4
typedef struct signotify_id {
        pid_t sn_pid;
        int sn_index;
        int sn_pad;
} signotify_id_t;
# 232 "/usr/include/sys/signal.h" 3 4
struct sigstack {
        void *ss_sp;
        int ss_onstack;
};
# 28 "/usr/include/signal.h" 2 3 4
# 46 "/usr/include/signal.h" 3 4
extern const char **_sys_siglistp;
extern const int _sys_siglistn;
# 57 "/usr/include/signal.h" 3 4
extern int kill(pid_t, int);
extern int sigaction(int, const struct sigaction *, struct sigaction *);

extern int sigaddset(sigset_t *, int);
extern int sigdelset(sigset_t *, int);
extern int sigemptyset(sigset_t *);
extern int sigfillset(sigset_t *);
extern int sigismember(const sigset_t *, int);

extern int sigpending(sigset_t *);
extern int sigprocmask(int, const sigset_t *, sigset_t *);
extern int sigsuspend(const sigset_t *);




# 1 "/usr/include/sys/procset.h" 1 3 4
# 16 "/usr/include/sys/procset.h" 3 4
#pragma ident "@(#)procset.h	1.20	00/02/14 SMI" 
# 41 "/usr/include/sys/procset.h" 3 4
typedef enum

        idtype

                {
        P_PID,
        P_PPID,
        P_PGID,

        P_SID,
        P_CID,
        P_UID,
        P_GID,
        P_ALL,
        P_LWPID,
        P_TASKID,
        P_PROJID
} idtype_t;
# 67 "/usr/include/sys/procset.h" 3 4
typedef enum idop {
        POP_DIFF,


        POP_AND,


        POP_OR,


        POP_XOR


} idop_t;







typedef struct procset {
        idop_t p_op;




        idtype_t p_lidtype;


        id_t p_lid;

        idtype_t p_ridtype;


        id_t p_rid;
} procset_t;
# 74 "/usr/include/signal.h" 2 3 4
extern int gsignal(int);
extern int (*ssignal(int, int (*)(int)))(int);
extern int sigsend(idtype_t, id_t, int);
extern int sigsendset(const procset_t *, int);
extern int sig2str(int, char *);
extern int str2sig(const char *, int *);






extern void (*bsd_signal(int, void (*)(int)))(int);
extern int killpg(pid_t, int);
extern int siginterrupt(int, int);
extern int sigaltstack(const stack_t *, stack_t *);
extern int sighold(int);
extern int sigignore(int);
extern int sigpause(int);
extern int sigrelse(int);
extern void (*sigset(int, void (*)(int)))(int);
extern int sigstack(struct sigstack *, struct sigstack *);







extern int pthread_kill(pthread_t, int);
extern int pthread_sigmask(int, const sigset_t *, sigset_t *);
extern int sigwaitinfo(const sigset_t *, siginfo_t *);
extern int sigtimedwait(const sigset_t *, siginfo_t *, const struct timespec *);
extern int sigqueue(pid_t, int, const union sigval);
# 206 "/usr/include/signal.h" 3 4
extern int sigwait(sigset_t *);
# 4 "fpe-test.c" 2
# 1 "/usr/include/stdlib.h" 1 3 4
# 16 "/usr/include/stdlib.h" 3 4
#pragma ident "@(#)stdlib.h	1.47	99/11/03 SMI" 

# 1
"/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/iso/stdlib_iso.h"
1 3 4
# 37
"/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/iso/stdlib_iso.h" 3 4
#pragma ident "@(#)stdlib_iso.h	1.2	99/12/21 SMI" 
# 46
"/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/iso/stdlib_iso.h" 3 4
extern unsigned char __ctype[];
# 57
"/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/iso/stdlib_iso.h" 3 4
typedef struct {
        int quot;
        int rem;
} div_t;

typedef struct {
        long quot;
        long rem;
} ldiv_t;
# 96
"/opt/LCLsfw/gnu/lib/gcc-lib/i686-pc-solaris2.8/3.3.3/include/iso/stdlib_iso.h" 3 4
typedef long wchar_t;






extern void abort(void);
extern int abs(int);
extern int atexit(void (*)(void));
extern double atof(const char *);
extern int atoi(const char *);
extern long int atol(const char *);
extern void *bsearch(const void *, const void *, size_t, size_t,
        int (*)(const void *, const void *));
extern void *calloc(size_t, size_t);
extern div_t div(int, int);
extern void exit(int);
extern void free(void *);
extern char *getenv(const char *);
extern long int labs(long);
extern ldiv_t ldiv(long, long);
extern void *malloc(size_t);
extern int mblen(const char *, size_t);
extern size_t mbstowcs(wchar_t *, const char *, size_t);
extern int mbtowc(wchar_t *, const char *, size_t);
extern void qsort(void *, size_t, size_t,
        int (*)(const void *, const void *));
extern int rand(void);
extern void *realloc(void *, size_t);
extern void srand(unsigned int);
extern double strtod(const char *, char **);
extern long int strtol(const char *, char **, int);
extern unsigned long int strtoul(const char *, char **, int);
extern int system(const char *);
extern int wctomb(char *, wchar_t);
extern size_t wcstombs(char *, const wchar_t *, size_t);
# 19 "/usr/include/stdlib.h" 2 3 4
# 68 "/usr/include/stdlib.h" 3 4
typedef struct {
        long long quot;
        long long rem;
} lldiv_t;
# 112 "/usr/include/stdlib.h" 3 4
extern void _exithandle(void);




extern double drand48(void);
extern double erand48(unsigned short *);
extern long jrand48(unsigned short *);
extern void lcong48(unsigned short *);
extern long lrand48(void);
extern long mrand48(void);
extern long nrand48(unsigned short *);
extern unsigned short *seed48(unsigned short *);
extern void srand48(long);
extern int putenv(char *);
extern void setkey(const char *);
# 144 "/usr/include/stdlib.h" 3 4
extern void swab(const char *, char *, ssize_t);





extern int mkstemp(char *);




extern int mkstemp64(char *);





extern long a64l(const char *);
extern char *ecvt(double, int, int *, int *);
extern char *fcvt(double, int, int *, int *);
extern char *gcvt(double, int, char *);
extern int getsubopt(char **, char *const *, char **);
extern int grantpt(int);
extern char *initstate(unsigned, char *, size_t);
extern char *l64a(long);
extern char *mktemp(char *);
extern char *ptsname(int);
extern long random(void);
extern char *realpath(const char *, char *);
extern char *setstate(const char *);
extern void srandom(unsigned);
extern int ttyslot(void);
extern int unlockpt(int);
extern void *valloc(size_t);




extern int dup2(int, int);
extern char *qecvt(long double, int, int *, int *);
extern char *qfcvt(long double, int, int *, int *);
extern char *qgcvt(long double, int, char *);
extern char *getcwd(char *, size_t);
extern const char *getexecname(void);
extern char *getlogin(void);
extern int getopt(int, char *const *, const char *);
extern char *optarg;
extern int optind, opterr, optopt;
extern char *getpass(const char *);
extern char *getpassphrase(const char *);
extern int getpw(uid_t, char *);
extern int isatty(int);
extern void *memalign(size_t, size_t);
extern char *ttyname(int);


extern long long atoll(const char *);
extern long long llabs(long long);
extern lldiv_t lldiv(long long, long long);
extern char *lltostr(long long, char *);
extern long long strtoll(const char *, char **, int);
extern unsigned long long strtoull(const char *, char **, int);
extern char *ulltostr(unsigned long long, char *);
# 5 "fpe-test.c" 2

volatile int erl_fp_exception;

static void unmask_fpe(void)
{
    unsigned short cw;
    __asm__ __volatile__("fstcw %0" : "=m"(cw));
    cw &= ~(0x01|0x04|0x08);
    __asm__ __volatile__("fldcw %0" : : "m"(cw));
}

static __inline__ int check_fpe(double f)
{
    __asm__ __volatile__("fwait" : "=m"(erl_fp_exception) : "m"(f));
    if (!erl_fp_exception)
       return 0;
    __asm__ __volatile__("fninit");
    unmask_fpe();
    return 1;
}

static void fpe_sig_handler(int sig)
{
    erl_fp_exception = 1;
}

static void do_init(void)
{
    signal(8, fpe_sig_handler);
    unmask_fpe();
}

double a = 3.23e133;
double b = 3.57e257;
double res;

void do_fmul(void)
{
    res = a * b;
}

int do_check(void)
{
    if (check_fpe(res)) {
       fprintf((&__iob[2]), "res = %g, FPE worked\n", res);
       return 0;
    } else {
       fprintf((&__iob[2]), "res = %g, FPE failed\n", res);
       return 1;
    }
}

int main(int argc, const char **argv)
{
    if (argc == 3) {
       a = atof(argv[1]);
       b = atof(argv[2]);
    }
    do_init();
    do_fmul();
    return do_check();
}

-- 
           Summary: using -O3 causes a core whereas -O2 and under work
           Product: gcc
           Version: 3.3.3
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ml at slack dot net
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-solaris2.8
  GCC host triplet: i686-pc-solaris2.8
GCC target triplet: i686-pc-solaris2.8


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330

[Bug optimization/14330] using -O3 causes a core whereas -O2 and under work

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal
          Component|c                           |optimization
           Keywords|                            |wrong-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330

[Bug target/14330] using -O3 causes a core whereas -O2 and under work

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-26 15:50 -------
Does -O2 -finline-functions also give a core file?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|optimization                |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330

[Bug target/14330] using -O3 causes a core whereas -O2 and under work

[ml at slack dot net]

------- Additional Comments From ml at slack dot net  2004-03-31 03:53 -------
Subject: Re:  using -O3 causes a core whereas -O2 and under
 work

here are the results I got executing the binary on my solaris x86 box:

    gcc -finline-functions fpe-test.c         works
    gcc -O -finline-functions fpe-test.c      cores
    gcc -O2 -finline-functions fpe-test.c     cores


On 26 Mar 2004, pinskia at gcc dot gnu dot org wrote:

>
> ------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-26 15:50 -------
> Does -O2 -finline-functions also give a core file?
>
> --
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>           Component|optimization                |target
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330
>
> ------- You are receiving this mail because: -------
> You reported the bug, or are watching the reporter.
>
>
>
>



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330

[Bug target/14330] using -O3 causes a core whereas -O2 and under work

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-10-11 11:09 -------
Created an attachment (id=7322)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7322&action=view)
Testcase

Attacched the testcase. In future, please do not copy & paste large testcases
into a comment, but just attacch them.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330

[Bug target/14330] using -O3 causes a core whereas -O2 and under work

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-11 11:55 -------
I think this is case where asm __volatile__ can be moved around (not scheduled though).

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330