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2014 Sep 04
2
[LLVMdev] Please benchmark new x86 vector shuffle lowering, planning to make it the default very soon!
Greetings all,
As you may have noticed, there is a new vector shuffle lowering path in the
X86 backend. You can try it out with the
'-x86-experimental-vector-shuffle-lowering' flag to llc, or '-mllvm
-x86-experimental-vector-shuffle-lowering' to clang. Please test it out!
There may be some correctness bugs, I'm still fuzz testing it to shake them
out. But I expect fairly few