From 1dc4fe70128db05237a00eda6eb15e2b44deb31f Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 5 Sep 2020 17:03:35 -0700 Subject: tcg/optimize: Fold dup2_vec When the two arguments are identical, this can be reduced to dup_vec or to mov_vec from a tcg_constant_vec. Signed-off-by: Richard Henderson --- tcg/optimize.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'tcg/optimize.c') diff --git a/tcg/optimize.c b/tcg/optimize.c index 53aa8e5329..220f4601d5 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1109,6 +1109,21 @@ void tcg_optimize(TCGContext *s) } goto do_default; + case INDEX_op_dup2_vec: + assert(TCG_TARGET_REG_BITS == 32); + if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) { + tmp = arg_info(op->args[1])->val; + if (tmp == arg_info(op->args[2])->val) { + tcg_opt_gen_movi(s, op, op->args[0], tmp); + break; + } + } else if (args_are_copies(op->args[1], op->args[2])) { + op->opc = INDEX_op_dup_vec; + TCGOP_VECE(op) = MO_32; + nb_iargs = 1; + } + goto do_default; + CASE_OP_32_64(not): CASE_OP_32_64(neg): CASE_OP_32_64(ext8s): -- cgit v1.2.3