This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: [cft] subreg validation round 2
- From: Janis Johnson <janis187 at us dot ibm dot com>
- To: Bob Wilson <bwilson at tensilica dot com>
- Cc: rth at redhat dot com, gcc at gcc dot gnu dot org
- Date: Wed, 17 Nov 2004 14:31:28 -0800
- Subject: Re: [cft] subreg validation round 2
- References: <20041117184009.GA12257@redhat.com> <419BA411.5090801@tensilica.com>
On Wed, Nov 17, 2004 at 11:18:41AM -0800, Bob Wilson wrote:
>
> But speaking of picking up pieces after the fact....
>
> Your change to assign_parm_setup_block() on 2004-11-13 is causing/exposing
> a problem for Xtensa targets. Specifically, this piece:
>
> *************** assign_parm_setup_block (tree parm, stru
> *** 2648,2654 ****
...
>
> The Xtensa FUNCTION_ARG macro is returning a BLKmode REG for a 3-byte
> struct argument. This used to be converted to an SImode REG, but now it
> gets passed to gen_lowpart, which barfs on the BLKmode argument.
That change also causes several new test failures for powerpc64-linux
with -m64, which now ICE in gen_lowpart_common for a BLKmode argument.
Janis