Please,help with Ada compiler

[Serguei Kouratov]

Dear friends,
I have performance problems with ADA compiler inculded in Mingw gcc 3.4.2.
Due to my work I had to port existing C++ code to ADA code as result I
got performance
5-10 times LESS then in C++.
All algorithms was related to simple array processings in simple loops.
I could understand 10-20% degradation related to run-time checking,
but not 500% !!!
I try to use O3, but with the same results :(

Could somebody hint me any way to resolve this problem ?
Or confirm "Ada implementation in 3.4.2 is not comparable by
performance with C++"