search for: __builtin_fpaccuracy

...aching a Clang patch which adds this metadata to single precision floating point division instructions in OpenCL (which are accurate to 2.5ulp, per OpenCL 1.1 s7.4). I would imagine that in the future we may want to allow the user to control the level of accuracy (one idea is that we can provide a __builtin_fpaccuracy function, which could be used like this): __builtin_fpaccuracy(x/y, 2) // compute x/y with a maximum error of 2ulp The backend is not my area of expertise, so I won't venture to say how difficult it would be to recognise and act on the attribute there. Alternatives ------------ I am proposi...

...which adds this metadata > to single precision floating point division instructions in OpenCL > (which are accurate to 2.5ulp, per OpenCL 1.1 s7.4). I would imagine > that in the future we may want to allow the user to control the level > of accuracy (one idea is that we can provide a __builtin_fpaccuracy > function, which could be used like this): > > __builtin_fpaccuracy(x/y, 2) // compute x/y with a maximum error of 2ulp > > The backend is not my area of expertise, so I won't venture to say > how difficult it would be to recognise and act on the attribute there. > >...

...adata > > to single precision floating point division instructions in OpenCL > > (which are accurate to 2.5ulp, per OpenCL 1.1 s7.4). I would imagine > > that in the future we may want to allow the user to control the level > > of accuracy (one idea is that we can provide a __builtin_fpaccuracy > > function, which could be used like this): > > > > __builtin_fpaccuracy(x/y, 2) // compute x/y with a maximum error of > 2ulp > > > > The backend is not my area of expertise, so I won't venture to say > > how difficult it would be to recognise and act o...