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Re: [PATCH 3/4] x86: fold RegXMM/RegYMM/RegZMM into RegSIMD
>>> "H.J. Lu" <hjl.tools@gmail.com> 12/15/17 1:50 PM >>>
>On Fri, Dec 15, 2017 at 2:34 AM, Jan Beulich <JBeulich@suse.com> wrote:
>> @@ -5930,20 +5958,6 @@ finalize_imm (void)
>> }
>>
>> static int
>> -bad_implicit_operand (int xmm)
>> -{
>> - const char *ireg = xmm ? "xmm0" : "ymm0";
>> -
>> - if (intel_syntax)
>> - as_bad (_("the last operand of `%s' must be `%s%s'"),
>> - i.tm.name, register_prefix, ireg);
>> - else
>> - as_bad (_("the first operand of `%s' must be `%s%s'"),
>> - i.tm.name, register_prefix, ireg);
>> - return 0;
>> -}
>> -
>
>Will we miss the assembly operand error checking?
Not sure I understand what you mean. As the altered test case shows, error
messages are still present, just that they don't mention %xmm0 anymore. If
you mean something else, please explain. But keep in mind that things are
now more similar to GPR accumulator (i.e. %al etc) or FPU (%st(0)) handling,
where there is no such problem either. The template now requires %xmm0 to
be used.
Jan