RE: [PATCH v4 42/51] tcg/optimize: Stop forcing z_mask to "garbage" for 32-bit values

[Luis Fernando Fujita Pires]

From: Richard Henderson <richard.henderson@linaro.org>
> This "garbage" setting pre-dates the addition of the type changing opcodes
> INDEX_op_ext_i32_i64, INDEX_op_extu_i32_i64, and
> INDEX_op_extr{l,h}_i64_i32.
> 
> So now we have a definitive points at which to adjust z_mask to eliminate such
> bits from the 32-bit operands.
> 
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  tcg/optimize.c | 35 ++++++++++++++++-------------------
>  1 file changed, 16 insertions(+), 19 deletions(-)

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>

--
Luis Pires
Instituto de Pesquisas ELDORADO
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