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Re: [PR46602] sel-sched: move toporder checking


On 11/24/2010 05:29 AM, Alexander Monakov wrote:
Hi,

After the fix for PR 46204, we can enter maybe_tidy_empty_bb with invalid
topological order, but will make no attempt to recompute it (instead the caller,
tidy_control_flow, will do it later).  That leads to an ICE in verify_backedges.

Rather than bringing back some complexity into maybe_tidy_empty_bb to allow it
to recompute toporder again, I'd like to move verify_backedges into the caller
that creates edges between unrelated BBs, thus breaking toporder.

Bootstrapped and regtested on x86_64-linux, ia64-linux (+ with sel-sched
enabled at -O2), OK for trunk?

2010-11-24 Alexander Monakov<amonakov@ispras.ru>

	PR rtl-optimization/46602
	* sel-sched-ir.c (maybe_tidy_empty_bb): Move checking ...
	(tidy_control_flow): Here.


OK, thanks for the patch.



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