> Thanks for the suggestions. > Is it possible to modify assembly files emitted after ltrans phase ? > IIUC, the linker invokes lto1 twice, for wpa and ltrans,and then links > the obtained object files which doesn't make it possible to hand edit > assembly files post ltrans ? > In particular, I wanted to modify calculix.ltrans16.ltrans.s, which > contains e_c3d to avoid the extra branch. > (If that doesn't work out, I can proceed with manually inlining in the > source and then modifying generated assembly).
It is not intended to work that way, but for smaller benchmark you can just keep the .s files, modify them and then compile again with gfortran *.s or so. Honza > > Thanks, > Prathamesh > > > > Richard. > > > > > Thanks, > > > Prathamesh > > > > > > > > > which corresponds to the following loop in line 1014. > > > > > do n1=1,3 > > > > > s(iii1,jjj1)=s(iii1,jjj1) > > > > > & +anisox(m1,k1,n1,l1) > > > > > & *w(k1,l1)*vo(i1,m1)*vo(j1,n1) > > > > > & *weight > > > > > > > > > > I am not sure why would hoisting have any direct effect on this loop > > > > > except perhaps that hoisting allocated more reigsters, and led to > > > > > increased register pressure. Perhaps that's why it's using highered > > > > > number regs for code-gen in inlined version ? However disabling > > > > > hoisting in blocks 173 and 181, also leads to overall 6 extra spills > > > > > (by grepping for str to sp), so > > > > > hoisting is also helping here ? I am not sure how to proceed further, > > > > > and would be grateful for suggestions. > > > > > > > > > > Thanks, > > > > > Prathamesh
