Fix for PR14824: Optimization arm_ldst_opt inserts newly generated instruction vldmia at incorrect position

[Renato Golin]

On 27 March 2013 12:50, Stepan Dyatkovskiy <stpworld at narod.ru> wrote:

> Hello guys,
> Well I introduced unit-regs-in-use set, and reg-to-unit-regs map. Now each
> time we add load operation it just resolves unit-regs affected and checks
> case when new operation overrides some previous one.
> If I detect the "override" fact, well I scan all previous load operations
> and remove ones were overridden.
>

Hi Stepan,

Sorry for the delay, but the patch looks good as far as I can tell in this
early morning review. ;)

If no one else objects, and you ran all appropriate tests (including
check-all and possibly the test-suite on at least one platform), I'm ok
with it.

cheers,
--renato
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