[Piglit] Maybe some mistake in cl builtin-char-abs-1.0.generated

[Aaron Watry]

abs() always produces an unsigned output type.  So your example below should end up using:

> vstore2(uchar2 vect,  int offset,  uchar* out);

--Aaron

On Jun 28, 2013, at 3:59 AM, He Junyan <junyan.he at inbox.com> wrote:

> about test case "builtin-char-abs-1.0.generated"
> 
> The kernel will generate as:
> 
> kernel void test_2_abs_char(global uchar* out, global char* in0){
>   vstore2(abs(vload2(0, in0)), 0, out);
> }
> 
> Which will cause the vstore function fail.
> 
> here, I think the vstore2 will have the prototype:
> vstore2(char2 vect,  int offset,  uchar* out);
> 
> but the spec says:
> void vstoren (gentypen data, size_t offset, __local gentype *p)
> 
> So the gentype must be same, and there is no builtin conversion rule between uchar2 to char2 or uchar * to char *,
> this case will always fail.
> 
> Please uniform the in and out type
> 
> 
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