[llvm-commits] [llvm] r46727 - /llvm/trunk/include/llvm/IntrinsicsX86.td
clattner at apple.com
Tue Feb 5 13:39:43 CST 2008
On Feb 5, 2008, at 11:37 AM, Evan Cheng wrote:
>> That means you have to know whether you've got SSE4.1 in the FE.
>> This is not an insuperable obstacle, but I think it's better to leave
>> dependencies in the BE when possible.
> Even with SSE4.1, it's a good idea to lower them to extract element
> instructions. X86ISelLoweringhas all the information necessary to
> determine what instructions to they should be selected to.
Do you mean 'even without SSE4.1'?
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