Aaron Watry 947bdd059a
math: Add tan implementation ...
Uses the algorithm:
tan(x) = sin(x) / sqrt(1-sin^2(x))
An alternative is:
tan(x) = sin(x) / cos(x)
Which produces more verbose bitcode and longer assembly.
Either way, the generated bitcode seems pretty nasty and a more optimized
but still precise-enough solution is welcome.
Signed-off-by: Aaron Watry <awatry@gmail.com >
Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu >
llvm-svn: 217511
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