diff options
| -rw-r--r-- | gas/config/tc-i386.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 6e2f6e5..cdd3b55 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -11485,6 +11485,16 @@ s_insn (int dummy ATTRIBUTE_UNUSED) for (j = i.imm_operands; j < i.operands; ++j) { + /* Look for 8-bit operands that use old registers. */ + if (i.vec_encoding != vex_encoding_default + && flag_code == CODE_64BIT + && i.types[j].bitfield.class == Reg + && i.types[j].bitfield.byte + && !(i.op[j].regs->reg_flags & RegRex64) + && i.op[j].regs->reg_num > 3) + as_bad (_("can't encode register '%s%s' with VEX/XOP/EVEX"), + register_prefix, i.op[j].regs->reg_name); + i.types[j].bitfield.instance = InstanceNone; if (operand_type_check (i.types[j], disp)) |