On Thu, May 19, 2016 at 9:27 AM, Richard Sandiford
wrote:
> There doesn't seem to have been any fallout from the fix for PR69400
> and it applies cleanly to gcc-5-branch.
>
> Bootstrapped & regression-tested on x86_64-linux-ngu. OK for gcc 5?
Ok.
Thanks,
Richard.
> Thanks,
> Richard
>
>
> Back
There doesn't seem to have been any fallout from the fix for PR69400
and it applies cleanly to gcc-5-branch.
Bootstrapped & regression-tested on x86_64-linux-ngu. OK for gcc 5?
Thanks,
Richard
Backport from mainline:
gcc/
2016-01-26 Richard Sandiford
PR tree-optimization/69400
On Fri, Jan 22, 2016 at 09:43:52AM +, Richard Sandiford wrote:
> gcc/
> PR tree-optimization/69400
> * wide-int.cc (wi_pack): Take the precision as argument and
> perform canonicalization here rather than in the callers.
> Use the main loop to handle all full-width HWIs.
As described in the PR, wi::divmod_internal was sign- rather than
zero-extending a modulus result in cases where the result has fewer
HWIs than the precision and the upper bit of the upper HWI was set.
This patch tries to make things more robust by getting wi_pack
to handle the canonicalisation st
