[LLVMdev] Virtual register def doesn't dominate all uses
Boris Boesler
baembel at gmx.de
Wed Nov 5 07:14:41 PST 2014
Hi!
Am 05.11.2014 um 16:05 schrieb Tim Northover <t.p.northover at gmail.com>:
> Hi Boris,
>
> On 5 November 2014 06:47, Boris Boesler <baembel at gmx.de> wrote:
>> Cross-check: Move the MV-patterns from the beginning to the end. Voila, it works.
>
> It would be better to delete those patterns entirely. They'll always
> match (if asked) and never give a sane result.
Hm, these are no patterns like "def : Pat<..>;". These are patterns inside instructions, and I do have to specify them to use them in copyPhysReg(), don't I?
Boris
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