target-arm: Don't set FP exceptions in recip, recip_sqrt estimate fns
The functions which do the core estimation algorithms for the VRSQRTE and VRECPE instructions should not set floating point exception flags, so use a local fp status for doing these calculations. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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