Buildv.sac appears to be missing reuse code

Bugzilla Link	910
Created on	Feb 14, 2012 17:08
Version	svn
OS	Linux
Architecture	PC
Attachments	a.out.awlf, a.out.wlf, crud.awlf, crud.wlf

Extended Description

Created an attachment (id=848)
C code generated by  sac2c -doawlf -nowlf -bopt
This code runs about twice as slow with -doawlf -nowlf as without:
use Array:all;
int main()
{
  x = with {
   ([0] <= iv=[i] < [2000]) : iota(i);
   } : fold( ++, [:int]);
  z = sum(x);
  StdIO::show(z);
 return(0);
}
The IL codes at -bopt look, to my not-tutored-enough eyeballs, to be
almost identical. However, the generated C code shows that
the -doawlf version contains 15 for()-loops, whereas the -doawlf
version has only 13.
sac2c -V
sac2c v1.00-beta (Haggis And Apple)
 developer rev 17729:MODIFIED linux-gnu_x86_64
 (Mon Feb 13 09:44:42 EST 2012 by sac)
This is not a new bug. Attached are the generated C codes and
the -bopt codes.