------- Comment #1 from jamborm at gcc dot gnu dot org 2009-07-14 16:32 -------
OK, I have now added this to my todo list. The simple tweaks would be
simple. On the other hand, if DCE is clever, it still might figure
out a structure is dead at some code paths while I don't even attempt
to and still remove some statements.
> only loads from a structure or only stores to a structure
> probably should be simply skipped.
I've been thinking about not scalarizing accesses that occur only once
too. Thinking about it more, I wonder whether requiring at least one
load and a store or at least two loads is a good idea. (Load and
store for the case where we store something to an aggregate first and
then load it and two loads for the case when we can finally get away
with one.)
I'll try to come up with something this simple quickly and hopefully
we can benchmark it over the weekend or so...
--
jamborm at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|mjambor at suse dot cz |jamborm at gcc dot gnu dot
| |org
AssignedTo|unassigned at gcc dot gnu |jamborm at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-07-14 16:32:37
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40744
