https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54589

[Umesh Kalappa]

Hi Richard,

for the subjected issue , we found few suggestions to handle the issue like

 1. be more conservative(target specific) and defining the peephole in
the md file to handle the patterns like add,shl and movl to "shlq and
movl"
 2. like you mentioned  in fwprop/combiner .

we would like to know your inputs /suggestions before we go ahead with
the patch.

Thank you
~Umesh