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I definitely support this. In fact we were about to send a very similar proposal. The main difference I can see between this proposal and ours was that we named the attribute "noduplicate". I graciously defer to James on the bikeshade color issue. Michael -----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of James Molloy Sent: Saturday, December 01, 2012 18:03 To: llvmdev at cs.uiuc.edu Subject: [LLVMdev] [RFC] "noclone" function attribute Hi, OpenCL ha...

...hael.m.kuperstein at intel.com> wrote: > I definitely support this. > > In fact we were about to send a very similar proposal. The main difference I can see between this proposal and ours was that we named the attribute "noduplicate". > I graciously defer to James on the bikeshade color issue. Yes, this sort of functionality is useful. A few requests though: 1) please name it "noduplicate". "cloning" has other naming implications in llvm related to function bodies, but calls to a noduplicate function should not be duplicated in any way (e.g. tail dupli...

Hi, OpenCL has a "barrier" function with very specific semantics, and there is currently no analogue to model this in LLVM. This has been touched on by the SPIR folks but I don't believe they put forward a proposal. The barrier function is a special function that ensures that all workitems executing a kernel have executed up to that point before execution on any workitem can