2 Commits

Author	SHA1	Message	Date
Jan Vesely	03937bdec3	tan: Port from amd_builtins ... v2: fixup constant precision Passes piglit on turks and carrizo. Passes CTS on carrizo Fixes half_tan to pass CTS on carrizo Acked-By: Aaron Watry <awatry@gmail.com> Tested-By: Aaron Watry <awatry@gmail.com> Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu> llvm-svn: 322979	2018-01-19 18:57:19 +00:00
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	2014-09-10 15:43:35 +00:00