A member of our team was working on some switch statement optimizations,
and ran into a situation that seems a little curious on the face of it.
Consider these two test variants:
int
test_switch_1 (unsigned int *index, int i)
Great, thanks! Results are good on this specific test case. Seems like
a nice thing to add in 4.8.
On Fri, 2012-01-27 at 18:40 +0100, Michael Matz wrote:
> Hi,
>
> On Fri, 27 Jan 2012, William J. Schm
On Fri, 2012-02-24 at 16:07 +0800, Jiangning Liu wrote:
> Hi,
>
> For the small case below, there are some redundant PHI expression stmt
> generated, and finally cause back-end generates redundant copy instructions
> due to some reasons around IRA.
>
> int *l, *r, *g;
> void test_func(int n)
> {
On Tue, 2012-02-28 at 11:21 +0100, Richard Guenther wrote:
> On Tue, Feb 28, 2012 at 9:33 AM, Jiangning Liu wrote:
> >
> >
> >> -Original Message-
> >> From: Jiangning Liu
> >> Sent: Tuesday, February 28, 2012 4:07 PM
> >> To: Jiangning
On Tue, 2012-02-28 at 11:03 -0600, William J. Schmidt wrote:
> I think this is probably a problem with how cprop_into_successor_phis
> works. It only propagates into immediate successors of a block. In
> this case copies are propagated from bb12 into phis in bb13 and bb14 (of
> whi
On Tue, 2012-02-28 at 11:52 -0600, William J. Schmidt wrote:
> On Tue, 2012-02-28 at 11:03 -0600, William J. Schmidt wrote:
>
> > I think this is probably a problem with how cprop_into_successor_phis
> > works. It only propagates into immediate successors of a block. In
&g
Greetings,
I've been debugging a Fedora 17 build problem on ppc64-redhat-linux, and
ran into an issue with bitsizetype. I have a patch that fixes the
problem, but I'm not yet convinced it's the right fix. I'm hoping
someone here can help me sort it out.
The problem occurs when compiling some Ja
On Wed, 2012-05-09 at 13:47 -0700, Andrew Pinski wrote:
> On Wed, May 9, 2012 at 1:36 PM, William J. Schmidt
> wrote:
> > Greetings,
> >
> > I've been debugging a Fedora 17 build problem on ppc64-redhat-linux, and
> > ran into an issue with bitsizetype. I have
I'm investigating another build failure for Fedora 17 (based on 4.7).
The failing compile from the build log is as follows:
/bin/sh ./libtool --tag=CC
--mode=compile
/builddir/build/BUILD/gcc-4.7.0-20120504/obj-ppc64-redhat-linux/./gcc/xgcc
-B/builddir/build/BUILD/gcc-4.7.0-20120504/obj-ppc64-r
On Sat, 2012-07-14 at 01:00 +0200, Steven Bosscher wrote:
> Andreas Enge wrote:
> >
> > powerpc-ibm-aix5.3.0.0, s390-linux-gnu,
>
> Perhaps Bill Schmidt can help here?
>
Unfortunately not, at least not directly. David Bernstein and Andreas
Krebbel, respectively, might be able to point you to t
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