aarch64: Mark clearbhb as a pseudo instruction

This was an early name for the clrbhb hint instruction.  Some software
was written with the old name before it was renamed, so we support it
for assembly but should never use it in disassembly.

This patch has no functional change, because we already pick (by
default) the last matching alias in the opcode table, and clrbhb is
listed later than clearbhb.

diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index 28230aa08f29e789194439ebcd133d17c942f6c7..ae268b0778e8df544273c57cb59ad058644d6b73 100644 (file)
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -4607,7 +4607,7 @@ const struct aarch64_opcode aarch64_opcode_table[] =
   CORE_INSN ("esb", 0xd503221f, 0xffffffff, ic_system, 0, OP0 (), {}, F_ALIAS),
   CORE_INSN ("psb", 0xd503223f, 0xffffffff, ic_system, 0, OP1 (BARRIER_PSB), {}, F_ALIAS),
   CORE_INSN ("tsb", 0xd503225f, 0xffffffff, ic_system, 0, OP1 (BARRIER_PSB), {}, F_ALIAS),
-  CORE_INSN ("clearbhb", 0xd50322df, 0xffffffff, ic_system, 0, OP0 (), {}, F_ALIAS),
+  CORE_INSN ("clearbhb", 0xd50322df, 0xffffffff, ic_system, 0, OP0 (), {}, F_ALIAS | F_PSEUDO),
   CORE_INSN ("clrex", 0xd503305f, 0xfffff0ff, ic_system, 0, OP1 (UIMM4), {}, F_OPD0_OPT | F_DEFAULT (0xF)),
   CORE_INSN ("dsb", 0xd503309f, 0xfffff0ff, ic_system, 0, OP1 (BARRIER), {}, F_HAS_ALIAS),
   XS_INSN ("dsb", 0xd503323f, 0xfffff3ff, ic_system, OP1 (BARRIER_DSB_NXS), {}, F_HAS_ALIAS),