Skip to content

Commit

Permalink
tcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32
Browse files Browse the repository at this point in the history
Rather than hard-coding use of mulu2_i32, allow muluh_i32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
  • Loading branch information
rth7680 committed Apr 18, 2014
1 parent df9ebea commit f46fc4e
Showing 1 changed file with 2 additions and 4 deletions.
6 changes: 2 additions & 4 deletions tcg/tcg-op.h
Expand Up @@ -2437,14 +2437,12 @@ static inline void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh,
tcg_gen_op3_i32(INDEX_op_mulsh_i32, rh, arg1, arg2);
tcg_gen_mov_i32(rl, t);
tcg_temp_free_i32(t);
} else if (TCG_TARGET_REG_BITS == 32 && TCG_TARGET_HAS_mulu2_i32) {
} else if (TCG_TARGET_REG_BITS == 32) {
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
TCGv_i32 t2 = tcg_temp_new_i32();
TCGv_i32 t3 = tcg_temp_new_i32();
tcg_gen_op4_i32(INDEX_op_mulu2_i32, t0, t1, arg1, arg2);
/* Allow the optimizer room to replace mulu2 with two moves. */
tcg_gen_op0(INDEX_op_nop);
tcg_gen_mulu2_i32(t0, t1, arg1, arg2);
/* Adjust for negative inputs. */
tcg_gen_sari_i32(t2, arg1, 31);
tcg_gen_sari_i32(t3, arg2, 31);
Expand Down

0 comments on commit f46fc4e

Please sign in to comment.