> Gcc only does this work in the second pass, but what's the
> point? Is it wrong or just not necessary in the first sched
> pass?
Regardless of the target architecture from the correctness point of view sched1
can be disabled. sched1 has as purpose shortening live ranges.
Short live ranges allo
"Amker.Cheng" writes:
>I'm currently studying implementation of instruction sched in gcc.
>
> it is possible to schedule insns directly from queue in case
> there is nothing better to do and there are still vacant dispatch slots
> in the current cycle.
>
> Gcc only does this work in the secon
