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by onetwothreefour 4991 days ago
OS X does not use LLVM JIT.
1 comments

From the link:

> Mac OS X 10.4: Uses the LLVM JIT for optimizing many parts of the OpenGL pipeline, including emulating vertex/pixel shaders when hardware support is missing, performing texture format conversion before uploading to the GPU, efficiently packing GPU buffers for vertex submission, and many others.

> Mac OS X 10.6: The OpenCL GPGPU implementation is built on Clang and LLVM compiler technology. This requires parsing an extended dialect of C at runtime and JIT compiling it to run on the CPU, GPU, or both at the same time.

http://llvm.org/Users.html