[LLVMdev] Best way for JIT to query whether llvm.fma.* is fast?
jingyue at google.com
Wed Dec 10 12:55:31 PST 2014
Does TargetLowering::isFMAFasterThanFMulAndFAdd (
On Wed, Dec 10, 2014 at 12:48 PM, Robison, Arch <arch.robison at intel.com>
> For the Julia language JIT, we’d like be able to tell whether the
> llvm.fma.* intrinsic has hardware support. What’s the best way to query
> LLVM (JIT) for this information?
> The information would be used in situations where the user wants to use
> different algorithms depending on whether FMA hardware is present or not.
> - Arch D. Robison
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
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