[PATCH] riscv: Allow -Wno-psabi to turn off ABI warnings [PR91229]

[Jakub Jelinek via Gcc-patches]

Hi!

While checking if all targets honor -Wno-psabi for ABI related warnings
or messages, I found that almost all do, except for riscv.
In the testsuite when we want to ignore ABI related messages we
typically use -Wno-psabi -w, but it would be nice to get rid of those
-w uses eventually.

The following allows silencing those warnings with -Wno-psabi rather than
just -w even on riscv.

Ok for trunk?

2022-03-15  Jakub Jelinek  <ja...@redhat.com>

        PR target/91229
        * config/riscv/riscv.cc (riscv_pass_aggregate_in_fpr_pair_p,
        riscv_pass_aggregate_in_fpr_and_gpr_p): Pass OPT_Wpsabi instead of 0
        to warning calls.

--- gcc/config/riscv/riscv.cc.jj        2022-03-07 15:00:17.239592719 +0100
+++ gcc/config/riscv/riscv.cc   2022-03-15 11:20:37.823661044 +0100
@@ -2918,8 +2918,8 @@ riscv_pass_aggregate_in_fpr_pair_p (cons
 
   if ((n_old != n_new) && (warned == 0))
     {
-      warning (0, "ABI for flattened struct with zero-length bit-fields "
-              "changed in GCC 10");
+      warning (OPT_Wpsabi, "ABI for flattened struct with zero-length "
+                          "bit-fields changed in GCC 10");
       warned = 1;
     }
 
@@ -2960,8 +2960,8 @@ riscv_pass_aggregate_in_fpr_and_gpr_p (c
           && (num_int_old != num_int_new || num_float_old != num_float_new)))
       && (warned == 0))
     {
-      warning (0, "ABI for flattened struct with zero-length bit-fields "
-              "changed in GCC 10");
+      warning (OPT_Wpsabi, "ABI for flattened struct with zero-length "
+                          "bit-fields changed in GCC 10");
       warned = 1;
     }
 

        Jakub