[PATCH] Fix PR31703, a bug in the shift lim code I added

[Richard Guenther]

On Thu, 26 Apr 2007, H. J. Lu wrote:

> On Thu, Apr 26, 2007 at 04:33:12PM +0200, Richard Guenther wrote:
> > 
> > I forgot to consider the case we have a widened result.  The simple
> > fix is to always create a new lhs for storing the bittest result rather
> > than trying to re-use the old one.
> > 
> > Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.  I'll
> > apply after that finished.
> > 
> > Richard.
> > 
> > 2007-04-26  Richard Guenther  <rguenther@suse.de>
> > 
> > 	PR tree-optimization/31703
> > 	* tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
> > 	the right type for the target of the bittest.
> > 
> > 	* gcc.c-torture/compile/pr31703.c: New testcase.
> > 
> 
> Can you make it a runtime testcase since gcc miscompiled it on
> 64bit host?

I tried but failed to.

Richard.