GNAT is a compiler, too

[Robert Dewar]

<<IMHO, we do not need to stress that GNAT is not a transpiler.  I know
that quite a few people believe this because older GNAT versions
generate a C source file by default (which does not contain any code
from the actual program), but these people won't read the manual
either. ;-)
>>

Actually by far the more important reasons are that

a) GNAT had Translator in the title

b) It used the gcc back end which many people still think of as meaning
the GNU C compiler.