dolphin

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JosJuice d00430470b JitArm64: Update registers last used before start of instruction

Let's reset m_last_used for each register that will be used
in an instruction before we start allocating any of them,
so that one of the earlier allocations doesn't spill a
register that we want in a later allocation. (We must still
also increment/reset m_last_used in R and RW, otherwise we
end up in trouble when emulating lmw/stmw since those access
more guest registers than there are available host registers.)

This should ensure that the asserts added earlier in this
pull request are never triggered.

2021-01-26 22:53:33 +01:00