tcg: check CF_PARALLEL instead of parallel_cpus
Thereby decoupling the resulting translated code from the current state of the system. The tb->cflags field is not passed to tcg generation functions. So we add a field to TCGContext, storing there a copy of tb->cflags. Most architectures have <= 32 registers, which results in a 4-byte hole in TCGContext. Use this hole for the new field. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NEmilio G. Cota <cota@braap.org> Signed-off-by: NRichard Henderson <richard.henderson@linaro.org>
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