Another set of floating point optimisation attemps

[axic]

[codecov[bot]]

Codecov Report

Merging #828 (3581284) into master (3581284) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 3581284 differs from pull request most recent head a5edb7c. Consider uploading reports for the commit a5edb7c to get more accurate results

@@           Coverage Diff           @@
##           master     #828   +/-   ##
=======================================
  Coverage   99.27%   99.27%           
=======================================
  Files          88       88           
  Lines       13296    13296           
=======================================
  Hits        13200    13200           
  Misses         96       96           

Flag	Coverage Δ
rust	98.48% <0.00%> (ø)
spectests	89.92% <0.00%> (ø)
unittests	99.22% <0.00%> (ø)
unittests-32	99.32% <0.00%> (ø)

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