Re: [PATCH v4 01/27] tcg: Fix tcg_reg_alloc_dup*

[Alex Bennée]

Richard Henderson <richard.henderson@linaro.org> writes:

> The assignment to mem_coherent should be done with any
> modification, not simply with a newly allocated register.

What exactly does mem_coherent mean in this case? Is it that our
register store is potentially out of sync with live values in temp regs
or that we have memory loads and stores in flight?

I think it would be useful to add a doc patch for TCGTemp do specify
what the various fields mean. It would certainly help reviewers that
don't have it committed to memory ;-)

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro