From: Richard Henderson <[email protected]>
> Pull the "op r, a, i => mov r, a" optimization into a function, and use them
> int the
> outer-most logical operations.
Typo: "int" -> "in".
> - /* Simplify expression for "op r, a, const => mov r, a" cases */
> - switch (opc) {
> - CASE_OP_32_64_VEC(add):
> - CASE_OP_32_64_VEC(sub):
> - CASE_OP_32_64_VEC(or):
> - CASE_OP_32_64_VEC(xor):
> - CASE_OP_32_64_VEC(andc):
> - CASE_OP_32_64(shl):
> - CASE_OP_32_64(shr):
> - CASE_OP_32_64(sar):
> - CASE_OP_32_64(rotl):
> - CASE_OP_32_64(rotr):
> - if (!arg_is_const(op->args[1])
> - && arg_is_const(op->args[2])
> - && arg_info(op->args[2])->val == 0) {
> - tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[1]);
> - continue;
> - }
> - break;
> - CASE_OP_32_64_VEC(and):
> - CASE_OP_32_64_VEC(orc):
You missed adding 'fold_xi_to_x(ctx, op, -1)' to fold_orc() in this commit.
It ended up being added in patch 42, but it should be here.
And should we use fold_xi_to_x() to optimize multiply and divide when i==1, too?
--
Luis Pires
Instituto de Pesquisas ELDORADO
Aviso Legal - Disclaimer <https://www.eldorado.org.br/disclaimer.html>
