diff options
Diffstat (limited to 'gas/config/tc-ppc.c')
| -rw-r--r-- | gas/config/tc-ppc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c index 868258f..fc8b9a07 100644 --- a/gas/config/tc-ppc.c +++ b/gas/config/tc-ppc.c @@ -1249,6 +1249,7 @@ ppc_setup_opcodes (void) const struct powerpc_macro *macro; const struct powerpc_macro *macro_end; bfd_boolean bad_insn = FALSE; + unsigned long prev_opcode = 0; if (ppc_hash != NULL) hash_die (ppc_hash); @@ -1296,6 +1297,17 @@ ppc_setup_opcodes (void) { const unsigned char *o; unsigned long omask = op->mask; + unsigned long major_opcode = PPC_OP (op->opcode); + + /* The major opcodes had better be sorted. Code in the disassembler + assumes the insns are sorted according to major opcode. */ + if (major_opcode < prev_opcode) + { + as_bad (_("major opcode is not sorted for %s"), + op->name); + bad_insn = TRUE; + } + prev_opcode = major_opcode; /* The mask had better not trim off opcode bits. */ if ((op->opcode & omask) != op->opcode) |