diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index ab83daab877..036a0d2a4e0 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -995,6 +995,7 @@ Builder.CreateResume(UnwindData); --> +
+ The PTX back-end is still experimental, but is fairly usable for compute kernels + in LLVM 3.0. Most scalar arithmetic is implemented, as well as intrinsics to + access the special PTX registers and sync instructions. The major missing + pieces are texture/sampler support and some vector operations.
+ +That said, the backend is already being used for domain-specific languages + and works well with the libclc + library to supply OpenCL built-ins. With it, you can use Clang to compile + OpenCL code into PTX and execute it by loading the resulting PTX as a binary + blob using the nVidia OpenCL library. It has been tested with several OpenCL + programs, including some from the nVidia GPU Computing SDK, and the performance + is on par with the nVidia compiler.
+ +