On Tue, 28 Oct 2014, Jakub Jelinek wrote:
> On Tue, Oct 21, 2014 at 10:28:40AM +0100, Thomas Preud'homme wrote:
> > --- a/gcc/tree-ssa-math-opts.c
> > +++ b/gcc/tree-ssa-math-opts.c
> > @@ -1916,7 +1916,8 @@ find_bswap_or_nop_1 (gimple stmt, struct
> > symbolic_number *n, int limit)
> > i
> From: Jakub Jelinek [mailto:ja...@redhat.com]
> Sent: Tuesday, October 28, 2014 12:27 PM
>
> Thomas, you know the code better, can you from the fix figure out
> a testcase that current trunk miscompiles or doesn't optimize
> because of this bug?
Here you are (see attachment).
Best regards,
Th
M
> To: 'Jakub Jelinek'; Richard Biener
> Cc: GCC Patches
> Subject: RE: [PATCH] Fix up sign extension in bswap
>
> > From: Jakub Jelinek [mailto:ja...@redhat.com]
> > Sent: Tuesday, October 28, 2014 12:27 PM
> >
> > Thomas, you know the code bette
On Wed, Oct 29, 2014 at 09:36:02AM -, Thomas Preud'homme wrote:
> Bummer. Why didn't my MUA warned me on this one?
I think this is ok for trunk with proper ChangeLog entry.
Jakub
> From: Jakub Jelinek [mailto:ja...@redhat.com]
> Sent: Wednesday, October 29, 2014 9:41 AM
>
> I think this is ok for trunk with proper ChangeLog entry.
Done with following ChangeLog entry:
2014-10-29 Thomas Preud'homme
* gcc.dg/optimize-bswapsi-1.c (swap32_e): New bswap test.
