Avoid division by very small entries when extracting singularvalues, and explicitly handle the 1x1 complex case.
Avoid division by very small entries when extracting singularvalues, and explicitly handle the 1x1 complex case.

ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,pasuka/eigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,ritsu1228/eigen,ritsu1228/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,pasuka/eigen