On 12.04.2018 0:55, Alexander Monakov wrote:
> As noted in PR 85354, we cannot simply invoke cfg_cleanup after dominators are
> computed, because they may become invalid but neither freed nor recomputed, so
> this trips checking in flow_loops_find.
>
> We can move cleanup_cfg earlier (and run it f
As noted in PR 85354, we cannot simply invoke cfg_cleanup after dominators are
computed, because they may become invalid but neither freed nor recomputed, so
this trips checking in flow_loops_find.
We can move cleanup_cfg earlier (and run it for all sel-sched invocations, not
only when pipelining)
Hello,
On 10.04.2018 17:40, Alexander Monakov wrote:
> Hi,
>
> We have this code in sel-sched.c sel_region_init():
>
> 6918 /* Init correct liveness sets on each instruction of a single-block
> loop.
> 6919 This is the only situation when we can't update liveness when
> calling
> 6920
Hi,
We have this code in sel-sched.c sel_region_init():
6918 /* Init correct liveness sets on each instruction of a single-block loop.
6919 This is the only situation when we can't update liveness when calling
6920 compute_live for the first insn of the loop. */
6921 if (current_lo
