On Thu, Aug 25, 2011 at 8:34 AM, Richard Guenther
<richard.guent...@gmail.com> wrote:
> On Thu, Aug 25, 2011 at 8:20 AM, Artem Shinkarov
> <artyom.shinkar...@gmail.com> wrote:
>> Here is a cleaned-up patch without the hook. Mostly it works in a way
>> we discussed.
>>
>> So I think it is a right time to do something about vcond patterns,
>> which would allow me to get rid of conversions that I need to put all
>> over the code.
>>
>> Also at the moment the patch breaks lto frontend with a simple example:
>> #define vector(elcount, type) \
>> __attribute__((vector_size((elcount)*sizeof(type)))) type
>>
>> int main (int argc, char *argv[]) {
>> vector (4, float) f0;
>> vector (4, float) f1;
>>
>> f0 = f1 != f0
>> ? (vector (4, float)){-1,-1,-1,-1} : (vector (4, float)){0,0,0,0};
>>
>> return (int)f0[argc];
>> }
>>
>> test-lto.c:8:14: internal compiler error: in convert, at lto/lto-lang.c:1244
>>
>> I looked into the file, the conversion function is defined as
>> gcc_unreachable (). I am not very familiar with lto, so I don't really
>> know what is the right way to treat the conversions.
>
> convert cannot be called from the middle-end, instead use fold_convert.
Thanks, great. I didn't know that. Using fold_convert solves my
problem and make all my tests pass.
>
>> And I seriously need help with backend patterns.
>
> I'll look at the patch in detail later today.
Thanks,
Artem.
> Richard.
>
>>
>> Thanks,
>> Artem.
>>
>
