diff options
| -rw-r--r-- | tcg/optimize.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index c8ae50bc91..35532a1e03 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -668,6 +668,26 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, } args += 3; break; + CASE_OP_32_64(deposit): + if (temps[args[1]].state == TCG_TEMP_CONST + && temps[args[2]].state == TCG_TEMP_CONST) { + gen_opc_buf[op_index] = op_to_movi(op); + tmp = ((1ull << args[4]) - 1); + tmp = (temps[args[1]].val & ~(tmp << args[3])) + | ((temps[args[2]].val & tmp) << args[3]); + tcg_opt_gen_movi(gen_args, args[0], tmp); + gen_args += 2; + } else { + reset_temp(args[0]); + gen_args[0] = args[0]; + gen_args[1] = args[1]; + gen_args[2] = args[2]; + gen_args[3] = args[3]; + gen_args[4] = args[4]; + gen_args += 5; + } + args += 5; + break; CASE_OP_32_64(setcond): tmp = do_constant_folding_cond(op, args[1], args[2], args[3]); if (tmp != 2) { |