[PATCH] sched: Do not reorder RTX_FRAME_RELATED_P insns (PR78029)

Segher Boessenkool segher@kernel.crashing.org
Wed Oct 26 13:49:00 GMT 2016


On Wed, Oct 26, 2016 at 03:13:06PM +0200, Bernd Schmidt wrote:
> On 10/26/2016 03:05 PM, Segher Boessenkool wrote:
> >2) We do not necessarily have all notes yet, if the port lets dwarf2cfi
> >create notes by itself.  Most (or even all?) ports do.
> 
> Hmm. Are you recording the insns in prologue_contains etc.?

I had a patch for that, I can resurrect it.

> You could 
> add dependencies for a prologue insn following an epilogue insn.

Good idea.  I'll have to think if that catches all cases though.
And it won't do anything for PR77687 (oh well).


Segher



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