This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: RFC: ssa subvariables for complex types
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Aldy Hernandez <aldyh at redhat dot com>
- Cc: law at redhat dot com, gcc at gcc dot gnu dot org
- Date: Wed, 19 Apr 2006 11:32:40 -0400
- Subject: Re: RFC: ssa subvariables for complex types
- References: <20060417200929.GA25045@redhat.com>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Aldy Hernandez wrote:
> How does this look?
>
I think I'd rather fix DCE/DSE independently of SFTs. Excessive
reliance on the pseudo scalarization given by SFTs brings problems of
its own.
We could explore that idea we talked about before where we would
coalesce partial definitions into one. So, if all the VDEFs in one
store are killed by separate partial defs downstream, then the whole
store is dead. Note that here we need to distinguish 'partial' from
'may' (aliased) defs. The latter do not constitute a partial kill.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (GNU/Linux)
iD8DBQFERlgYUTa2oAUaiwQRArYaAJ4l+lyo32VY3kl5MbiljgxFb8t39wCfYDJt
3YRxyQ48sk9pydgdo+Th3Y8=
=mwua
-----END PGP SIGNATURE-----