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tcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32 

Rather than hard-coding use of mulu2_i32, allow muluh_i32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2014-03-26 11:01:30 -07:00
parent df9ebea53e
commit f46fc4e6a9
1 changed files with 2 additions and 4 deletions
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6
tcg/tcg-op.h
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@ -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);