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Re: ill effect of <register>+<constant>


>>> Andreas Schwab <schwab@suse.de> 21.09.07 19:30 >>>
>"Dave Korn" <dave.korn@artimi.com> writes:
>
>>   I don't see how removing an unused and non-useful feature would really count
>> as "crippling".  I'm not suggesting it should be disabled for ppc, but for
>> x86, really .... what could conceivably be the use?
>
>There are many more architectures besides ppc and x86.  Almost all of
>them have numbered registers.

... including (what I would call broken) side effects like being able to use register
names that don't fit the instruction they're used with or the inability to deduce
the originally intended register from its number (e.g. when using equates of
registers in .cfi_* directives, which is currently really broken and which I
indicated I want to get fixed [at least for those architectures that permit fixing,
i.e. those where I *can* deduce the register from the GAS register number
and hence translate it to a proper Dwarf2 one]).

Jan


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