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<p class="MsoNormal"><span lang="EN-US">If write a kernel function declare a sampler_t without using the sampler.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">__kernel void kernel_func(sampler_t sp) { }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When user tries to set it using clSetKernelArg(k,0, sizeof(cl_sampler), &sampler), he will get INVALID_ARG_SIZE error.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The reason looks like the kernel argument was processed as FunctionArgument::VALUE instead of FunctionArgument::SAMPLER.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So, user passed sizeof(cl_sampler) which is 8, but the arg_size get from kernel is 4 on 64bit system.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This bug comes from PIGLIT api test cl-set-kernel-arg.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Ruiling<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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