Displaying 1 result from an estimated 1 matches for "4c50066c".
2018 Aug 29
3
[FPEnv] FNEG instruction
On Wed, 29 Aug 2018 at 07:51, Cameron McInally via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> The current thinking is that FNEG(X) and FSUB(-0.0, X) are not the same operation when X is a NaN or 0.
Do you mean denormals (when flushed) rather than 0 there? AFAIK it's
OK for 0 itself.
> So, the xforms in question should only be valid under Fast-Math conditions.
We could