[EMAIL PROTECTED] wrote:
I guess the combiner generates something like
a trucation pattern when special constant are detected.
The combiner also takse a similiar action in pattern
See the section of the documentation that talks about instruction
canonicalization.
http://gcc.gnu.org/onlinedocs/gccint/Insn-Canonicalizations.html
See in particular the last bullet.
Also, as Joern mentioned, you should try stepping through try_combine to
see what is really happening.
--
Jim Wilson, GNU Tools Support, http://www.specifix.com
