https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71361
--- Comment #3 from amker at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #2)
> Any progress with this?
I had a patch which can resolve the reported regression, and generate even
better code than the original:
.L5:
movl (%esi,%ecx,4), %eax
movl -4128(%ebp), %edx
movl -4124(%ebp), %ebx
imull (%edi,%ecx,4), %ebx
imull %eax, %edx
imull -4124(%ebp), %eax
addl %ebx, %edx
movl -4128(%ebp), %ebx
imull (%edi,%ecx,4), %ebx
addl %ebx, %eax
movl -4132(%ebp), %ebx
movl %edx, (%ebx,%ecx,4)
movl -4136(%ebp), %ebx
movl %edx, (%edi,%ecx,4)
movl %eax, (%ebx,%ecx,4)
movl %eax, (%esi,%ecx,4)
addl -4140(%ebp), %ecx
cmpl $511, %ecx
jle .L5
But this patch is a complete rewrite of major part of IVOPT, which is a stage 1
work.
