For support/regression/tests/gcc-torture-execute-const-addr-expr-1.c I get the error message "error 129: pointer types incompatible" in the mcs51-huge, mcs51-large, ds390 and hc08 port (all other ports are unaffected) in current svn (revision #7117). To reproduce remove the #if 0 in that file. I do not see why the types should be incompatible. They look like normal pointers to int to me.
Philipp
The AST for the initial value does not conform to a format that initValPointer() knows how to handle.
Fixed in reversion #9192.