> 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
Hi all:
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 second pass, but what's the point
