! { dg-do compile } ! { dg-options "-O3 -ffast-math -fdump-tree-reassoc1" } subroutine anisonl(w,vo,anisox,s,ii1,jj1,weight) integer ii1,jj1,i1,iii1,j1,jjj1,k1,l1,m1,n1 real*8 w(3,3),vo(3,3),anisox(3,3,3,3),s(60,60),weight ! ! This routine replaces the following lines in e_c3d.f for ! an anisotropic material ! do i1=1,3 iii1=ii1+i1-1 do j1=1,3 jjj1=jj1+j1-1 do k1=1,3 do l1=1,3 s(iii1,jjj1)=s(iii1,jjj1) & +anisox(i1,k1,j1,l1)*w(k1,l1)*weight do m1=1,3 s(iii1,jjj1)=s(iii1,jjj1) & +anisox(i1,k1,m1,l1)*w(k1,l1) & *vo(j1,m1)*weight & +anisox(m1,k1,j1,l1)*w(k1,l1) & *vo(i1,m1)*weight 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 enddo enddo enddo enddo enddo enddo return end ! There should be 22 multiplications left after un-distributing ! weigth, w(k1,l1), vo(i1,m1) and vo(j1,m1) on the innermost two ! unrolled loops. ! { dg-final { scan-tree-dump-times "\[0-9\] \\\* " 22 "reassoc1" } } ! { dg-final { cleanup-tree-dump "reassoc1" } }