lowering errors during compilation pgf90/linux9

i am porting some f90 programs from digital unix to linux9. i am compiling with pgf90.but during compilation i am encountering lots of lowering errors like bad ast type or lowering error 3.Can anybody explain me about cause of these errors

Hi jagroop,

These are compiler errors. Can you please send a report to trs@pgroup.com? Please include compiler version, your OS, a description of the error with the full text, and, if possible, an example of the code which exhibits the error.

Thank you,
Mat