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tcg/riscv: Accept constant first argument to sub_vec

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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>
This commit is contained in:
Richard Henderson 2024-10-15 19:04:55 +00:00
parent c283c0748a
commit dc9cd4ec12
2 changed files with 7 additions and 2 deletions
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1
tcg/riscv/tcg-target-con-set.h
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@ -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)

8
tcg/riscv/tcg-target.c.inc
View File

@ -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: