https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126286
--- Comment #2 from Dylan Rees <Dylan.Rees at arm dot com> ---
Having looked at the object code of this patch versus the one just before I can
see nothing but the expected code changes. Functionally the code looks
identical but the structure has altered since this patch results in earlier
vector-duplication/broadcast scheduling. The majority of code difference is
call/jump
displacements caused by the smaller code layout but I found no obvious
functional issues.
Functions that have changed:
* update_u:
- Expected patch behaviour is present, scalar coefficient calculations are
grouped first, followed by vbroadcastsd operations.
- Stack usage drops.
* imp_gauge_force.constprop.0:
- Stack usage drops.
- Eliminates a few instructions.
- Control flow and call count remain unchanged.
* add_force_to_mom:
- Instruction count and control flow are unchanged.
- Instruction form, register allocation and structural changes appear
algebraically equivalent and do not introduce extra work.
* u_shift_fermion:
- Only redundant alignment NOP padding is shortened.
