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H A Dtcg-target.c.incdiff 3ea9be33400f14305565a9a094cb6031c07183d5 Wed Apr 05 20:43:47 CDT 2023 Richard Henderson <richard.henderson@linaro.org> tcg/riscv: Conditionalize tcg_out_exts_i32_i64

Since TCG_TYPE_I32 values are kept sign-extended in registers, via "w"
instructions, we don't need to extend if the register matches.
This is already relied upon by comparisons.

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>