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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">OpenCL predefines many overloaded builtin functions (‘builtin’ in the sense of OpenCL spec) which are not defined in Clang. As such, to compile OpenCL kernels which call OpenCL ‘builtin’ functions, a header file declaring these functions
is needed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The khronos OpenCL header files can be found at these links:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoPlainText"><a href="https://github.com/KhronosGroup/SPIR/blob/spirv-1.0/lib/Headers/opencl-20.h">https://github.com/KhronosGroup/SPIR/blob/spirv-1.0/lib/Headers/opencl-20.h</a><o:p></o:p></p>
<p class="MsoPlainText"><a href="https://github.com/KhronosGroup/SPIR/blob/spirv-1.0/lib/Headers/opencl-12.h">https://github.com/KhronosGroup/SPIR/blob/spirv-1.0/lib/Headers/opencl-12.h</a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoNormal">I am wondering if upstreaming these header files to Clang trunk at clang/lib/Headers would save the OpenCL users the trouble of downloading these header files from different places.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also with these header files upstreamed, we could make them implicitly included so that users do not need to include them explicitly.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Your feedback is welcome.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sam<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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