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

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.

2022-03-15  Jakub Jelinek  <jakub@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.

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 7da9d37..ee756aa 100644 (file)
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -2918,8 +2918,8 @@ riscv_pass_aggregate_in_fpr_pair_p (const_tree type,
 
   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 (const_tree type,
           && (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;
     }