Re: [PATCH 20/30] tcg/loongarch: Implement setcond ops

[Richard Henderson]

On 9/20/21 1:04 AM, WANG Xuerui wrote:

+    switch (cond) {
+    case TCG_COND_EQ:
+        tcg_out_opc_sub_d(s, ret, arg1, arg2);
+        tcg_out_opc_sltui(s, ret, ret, 1);
+        break;
+    case TCG_COND_NE:
+        tcg_out_opc_sub_d(s, ret, arg1, arg2);
+        tcg_out_opc_sltu(s, ret, TCG_REG_ZERO, ret);
+        break;

You accept zero as input; you'll want to skip the subtract in that case.

r~