Displaying 3 results from an estimated 3 matches for "vec_double".
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v_double
2008 Jul 29
2
[LLVMdev] Vector types as function arguments and interfacing with C
...add(<2 x double> %a, <2 x double> %b) nounwind {
%c = add <2 x double> %a, %b
ret <2 x double> %c
}
and then call it from C code. What is the appropriate translation of
the <2 x double> vector type into C? I've tried packed structs and
"typedef double vec_double __attribute__ ((__vector_size__ (16)))" but
in both cases, it seems that GCC passes these in as pointers rather
than in registers.
Brendan Younger
2008 Jul 29
0
[LLVMdev] Vector types as function arguments and interfacing with C
...double> %b) nounwind {
> %c = add <2 x double> %a, %b
> ret <2 x double> %c
> }
>
> and then call it from C code. What is the appropriate translation of
> the <2 x double> vector type into C? I've tried packed structs and
> "typedef double vec_double __attribute__ ((__vector_size__ (16)))" but
> in both cases, it seems that GCC passes these in as pointers rather
> than in registers.
try reading about the gcc vector extensions in the "C Extensions" chapter
of the gcc docs.
Ciao,
Duncan.
2008 Jul 29
1
[LLVMdev] Vector types as function arguments and interfacing with C
...{
>> %c = add <2 x double> %a, %b
>> ret <2 x double> %c
>> }
>>
>> and then call it from C code. What is the appropriate translation of
>> the <2 x double> vector type into C? I've tried packed structs and
>> "typedef double vec_double __attribute__ ((__vector_size__ (16)))"
>> but
>> in both cases, it seems that GCC passes these in as pointers rather
>> than in registers.
>
> try reading about the gcc vector extensions in the "C Extensions"
> chapter
> of the gcc docs.
I have tri...