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yeppo
2017 Jan 12
2
The most efficient way to implement an integer based power function pow in LLVM
...100 cycles on some platforms).
> At the source level, what could the user do to decide that 1.28ULP is acceptable for his use-case?
Write x*x*x. =)
I can see an argument for adding a flag that allows a few ulp of error in math functions (roughly what Intel’s LA versions in MKL or some of the YEPPP implementations provide), but there is a question of how many users would actually find it and use it.
– Steve
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2017 Jan 12
2
The most efficient way to implement an integer based power function pow in LLVM
> On Jan 12, 2017, at 12:58 PM, Friedman, Eli via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> On 1/12/2017 9:33 AM, Mehdi Amini via llvm-dev wrote:
>>> On Jan 12, 2017, at 5:03 AM, Antoine Pitrou via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>>>
>>> On Mon, 9 Jan 2017 11:43:17 -0600
>>> Wei Ding via llvm-dev <llvm-dev at