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Re: Altivec Linux support in GCC
>>>>> "Michel" == Michel LESPINASSE <walken at zoy dot org> writes:
> On Mon, Apr 14, 2003 at 12:49:48PM -0500, Kumar Gala wrote:
>> 1. What are there two options to enable the support? (-maltivec
>> -mabi=altivec). If I have a Linux PPC targeted GCC why do I need to
>> tell it to use the abi to get altivec code generation? This just seems
>> confusing to the user (I dont have to specify the abi for any other
>> option).
Still, only the minority of users do this.
I agree with y'all that -maltivec without -mabi=altivec is useful,
what I have argued for in the past (and again now), is having
-maltivec imply -mabi=altivec as the default. Then, if you want the
functionality you describe, use -maltivec -mabi=no-altivec.
Previously when I brought this up, no one gave any arguments as to why
we can't have -maltivec imply an ABI change by default and then use
-mabi=no-altivec if you want the odd-ball case.
6 out of 10 emails I get wrt altivec "bugs" I answer with "have you
passed -mabi=altivec"? Clearly, this is confusing to the average user
who just wants to use AltiVec features as advertised in the
documentation (PIM).
Aldy