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When allocating new temps during tcg_optmize, do not re-use any EBB temps that were used within the TB. We do not have any idea what span of the TB in which the temp was live. Introduce tcg_temp_ebb_reset_freed and use before tcg_optimize, as well as replacing the equivalent in plugin_gen_inject and tcg_func_start. Cc: qemu-stable@nongnu.org Fixes:fb04ab7ddd("tcg/optimize: Lower TCG_COND_TST{EQ,NE} if unsupported") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2711 Reported-by: wannacu <wannacu2049@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> (cherry picked from commit04e006ab36) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>