------- Comment #2 from amacleod at redhat dot com 2006-11-17 19:28 -------
A .i file would have been handy. IN any case thats easily worked around.
The issue here isn't that the lifetoime of something is being extended since
the tree optimizers already made __res function scope. The problem is that it
is defined to be a specific register:
register long long unsigned int __res __asm__ (*r2);
and when its copied to
t_10 = __res
that is OK as well. t_10 is then used a single time a few stmts away, and this
triggers TER to substitute __res at t_10's use location.
The simplest and obvious fix I think would be to disable expansion of an
expression if the base variable is an __asm__ like that. So it would leave the
copy of __res to t_10 and disallow t_10 to be subsituted.
I think this will resolve the problem, and I will look at it shortly.
--
amacleod at redhat dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |amacleod at redhat dot com
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-11-17 19:28:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29877
