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llvmpipe: document issue with LLVM 2.8 and earlier with AVX

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Brian Paul 2011-04-07 13:43:00 -06:00
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commit 06613b7b3a
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src/gallium/drivers/llvmpipe/README
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@ -13,6 +13,10 @@ Requirements
See /proc/cpuinfo to know what your CPU supports.
- LLVM. Version 2.8 recommended. 2.6 or later required.
NOTE: LLVM 2.8 and earlier will not work on systems that support the
Intel AVX extensions (e.g. Sandybridge). LLVM's code generator will
fail when trying to emit AVX instructions. This was fixed in LLVM 2.9.
For Linux, on a recent Debian based distribution do: