target-arm: Use tcg_gen_extrh_i64_i32
Usually, eliminate an operation from the translator by combining a shift with an extract. In the case of gen_set_NZ64, we don't need a boolean value for cpu_ZF, merely a non-zero value. Given that we can extract both halves of a 64-bit input in one call, this simplifies the code. Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRichard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-12-git-send-email-rth@twiddle.net Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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