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I have a problem in that the Sun compiler (admittidly not the latest
version)

sparrow /export/home/drkirkby/Mlucas_src % cc -V
cc: Sun WorkShop 6 update 2 C 5.3 2001/05/15

seems to exit with an "illegal instruction" when compiling a bit of code
with the -fast option. This is not the executable program produced by
the compiler that is crashing, but the compiler itself. I don't use the
Sun compiler much, but have had it installed a few years with no hassle
, but this bit of code seems to create problems.

It's not the latest version of the compiler, so but perhaps someone with
a later one would check it, since if there is a bug in the current code,
I guess Sun would want to know about it. Perhaps a 4-year old compiler
they will be less concerned about, although if there is a patch I would
not mind it.

Without the -fast option, the compiler works fine.

The source is for finding large prime numbers

http://www.mersenne.org/

which finds primes of the form

M = 2^p -1

where M is always prime if p is prime. Hence if you find a large p that
is prime, you can get find huge Mersenne Prime M.

The actual bit of source for finding primes I'm trying to compile is at:

ftp://hogranch.com/pub/mayer/src/C/M...0.21.04.tar.gz

It seems to be the file

/usr/local/stow/ForteDeveloper6Update2/SUNWspro/WS6U2/bin/cg

in my compiler setup that is exiting with an illegal instruction. (the
'cc' is linked to /usr/local/bin/cc).


System is Sun Ultra 80, 4 x 450 MHz, 4GB RAM, Solaris 9 8/03
s9s_u4wos_08a SPARC, Generic_117171-15.

Here's the output of the compilation stage.


sparrow /export/home/drkirkby/Mlucas_src % cc -o Mlucas -fast *.c -lm
cc: Warning: -xarch=native has been explicitly specified, or implicitly
specified by a macro option, -xarch=native on this architecture implies
-xarch=v8plusa which generates code that does not run on pre UltraSPARC
processors
Mlucas.c:
"Mlucas.c", line 1026: warning: statement not reached
^Csparrow /export/home/drkirkby/Mlucas_src % cc -o Mlucas -fast -lm *.c
cc: Warning: -xarch=native has been explicitly specified, or implicitly
specified by a macro option, -xarch=native on this architecture implies
-xarch=v8plusa which generates code that does not run on pre UltraSPARC
processors
Mlucas.c:
"Mlucas.c", line 1026: warning: statement not reached
br.c:
mers_mod_square.c:
qfloat.c:
radix10_ditN_cy_dif1.c:
radix11_ditN_cy_dif1.c:
radix12_ditN_cy_dif1.c:
radix13_ditN_cy_dif1.c:
radix14_ditN_cy_dif1.c:
radix15_ditN_cy_dif1.c:
radix16_dif_dit_pass.c:
radix16_ditN_cy_dif1.c:
radix16_wrapper_ini.c:
radix16_wrapper_square.c:
radix18_ditN_cy_dif1.c:
radix20_ditN_cy_dif1.c:
radix22_ditN_cy_dif1.c:
radix24_ditN_cy_dif1.c:
"radix24_ditN_cy_dif1.c", line 1351: warning: newline not last character
in file
radix26_ditN_cy_dif1.c:
radix28_ditN_cy_dif1.c:
radix30_ditN_cy_dif1.c:
radix32_dif_dit_pass.c:
radix32_ditN_cy_dif1.c:
radix32_wrapper_ini.c:
radix32_wrapper_square.c:
radix36_ditN_cy_dif1.c:
radix5_ditN_cy_dif1.c:
radix6_ditN_cy_dif1.c:
radix7_ditN_cy_dif1.c:
radix8_dif_dit_pass.c:
cc: Fatal error in
/usr/local/bin/../stow/ForteDeveloper6Update2/SUNWspro/bin/../WS6U2/bin/cg
: Illegal Instruction

sparrow /export/home/drkirkby/Mlucas_src % cc -V
cc: Sun WorkShop 6 update 2 C 5.3 2001/05/15
usage: cc [ options] files. Use 'cc -flags' for details
sparrow /export/home/drkirkby/Mlucas_src % which cc
/usr/local/bin/cc
sparrow /export/home/drkirkby/Mlucas_src % ls -l /usr/local/bin/cc
lrwxrwxrwx 1 root other 46 Mar 20 2003 /usr/local/bin/cc
-> ../stow/ForteDeveloper6Update2/SUNWspro/bin/cc
sparrow /export/home/drkirkby/Mlucas_src %

--
Dr. David Kirkby,
G8WRB

Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/