I came across the following problem when trying to instrument the program. If I take the address of trees using build_fold_addr_expr at O2 the compiled programs crash (segmentation fault) at runtime. They run OK at O0. In this particular case I only took the addresses of var_decl and parm_decl nodes. What optimization could I be interfering with?
In fact I did not perform instrumentation for I noticed that the moment build_fold_addr_expr is called and it set the TREE_ADDRESSABLE flag the program would crash. thanks. -- dasarath
