diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2024-10-15 19:04:55 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-10-22 11:57:25 -0700 |
| commit | dc9cd4ec12074a762ca9f41a822a27aa702284d4 (patch) | |
| tree | a9b774c6b60987344dbe5b36667b9697990389c5 /tcg | |
| parent | c283c0748a01ec05f24d5aa24409f42b459e8938 (diff) | |
tcg/riscv: Accept constant first argument to sub_vec
Use vrsub.vi to subtract from a constant.
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/riscv/tcg-target-con-set.h | 1 | ||||
| -rw-r--r-- | tcg/riscv/tcg-target.c.inc | 8 |
2 files changed, 7 insertions, 2 deletions
diff --git a/tcg/riscv/tcg-target-con-set.h b/tcg/riscv/tcg-target-con-set.h index 97e6ecdb0f..d8ce5414f5 100644 --- a/tcg/riscv/tcg-target-con-set.h +++ b/tcg/riscv/tcg-target-con-set.h @@ -25,6 +25,7 @@ C_O0_I2(v, r) C_O1_I1(v, r) C_O1_I1(v, v) C_O1_I2(v, v, v) +C_O1_I2(v, vK, v) C_O1_I2(v, v, vK) C_O1_I2(v, v, vL) C_O1_I4(v, v, vL, vK, vK) diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index ce8d6d0293..1ce2f291d3 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -2350,7 +2350,11 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_sub_vec: set_vtype_len_sew(s, type, vece); - tcg_out_opc_vv(s, OPC_VSUB_VV, a0, a1, a2); + if (const_args[1]) { + tcg_out_opc_vi(s, OPC_VRSUB_VI, a0, a2, a1); + } else { + tcg_out_opc_vv(s, OPC_VSUB_VV, a0, a1, a2); + } break; case INDEX_op_and_vec: set_vtype_len(s, type); @@ -2565,7 +2569,7 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) case INDEX_op_xor_vec: return C_O1_I2(v, v, vK); case INDEX_op_sub_vec: - return C_O1_I2(v, v, v); + return C_O1_I2(v, vK, v); case INDEX_op_cmp_vec: return C_O1_I2(v, v, vL); case INDEX_op_cmpsel_vec: |