diff options
| -rw-r--r-- | tcg/mips/tcg-target.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c index 064db464b1..e97980df0b 100644 --- a/tcg/mips/tcg-target.c +++ b/tcg/mips/tcg-target.c @@ -1271,6 +1271,9 @@ static void tcg_out_addsub2(TCGContext *s, TCGReg rl, TCGReg rh, TCGReg al, if (cbl) { tcg_out_opc_imm(s, OPC_ADDIU, rl, al, bl); tcg_out_opc_imm(s, OPC_SLTIU, TCG_TMP0, rl, bl); + } else if (rl == al && rl == bl) { + tcg_out_opc_sa(s, OPC_SRL, TCG_TMP0, al, 31); + tcg_out_opc_reg(s, OPC_ADDU, rl, al, bl); } else { tcg_out_opc_reg(s, OPC_ADDU, rl, al, bl); tcg_out_opc_reg(s, OPC_SLTU, TCG_TMP0, rl, (rl == bl ? al : bl)); |