[binutils-gdb] RISC-V: Zicbo{m, p, z} adjustments to riscv_multi_subset_supports_ext()

[Jan Beulich]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d2552ba3e08067a30a03e5770f6fd8bd33f6f798

commit d2552ba3e08067a30a03e5770f6fd8bd33f6f798
Author: Jan Beulich <jbeulich@suse.com>
Date:   Fri Oct 14 12:52:16 2022 +0200

    RISC-V: Zicbo{m,p,z} adjustments to riscv_multi_subset_supports_ext()
    
    The lack thereof did caused gas to issue "internal: unreachable
    INSN_CLASS_*" errors when trying to assemble respective insns without
    the feature(s) enabled via e.g. ".option arch, ...". Of course a proper
    hint towards the missing extension then wasn't given either.

Diff:
---
 bfd/elfxx-riscv.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index f0c91cc97f7..c89b1e53e92 100644
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -2445,6 +2445,12 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps,
     {
     case INSN_CLASS_I:
       return "i";
+    case INSN_CLASS_ZICBOM:
+      return "zicbom";
+    case INSN_CLASS_ZICBOP:
+      return "zicbop";
+    case INSN_CLASS_ZICBOZ:
+      return "zicboz";
     case INSN_CLASS_ZICSR:
       return "zicsr";
     case INSN_CLASS_ZIFENCEI: