Re: [PATCH, gcc7, aarch64] Add arithmetic overflow patterns

[Michael Collison]

Hi Richard,

Note that this patch appears to depend on your previous patch:
https://gcc.gnu.org/ml/gcc-patches/2016-01/txtDPaXOBMuOB.txt

for the definition of define_mode_attr DWI. I was looking at this patch 
as I was working on Bugzilla 68543 which this will address.

Regards,

Michael Collison