Hi! As mentioned in the PR, the problem here is that the Ada FE needs to modify global_options after toplevel.c (process_options), but as for LTO we now use optimization_{default,current}_node for options of functions without specifial optimization node, it means the changed options aren't reflected in there.
Fixed thusly, bootstrapped/regtested on x86_64-linux, ok for trunk? 2015-02-06 Jakub Jelinek <ja...@redhat.com> PR middle-end/64340 * gcc-interface/trans.c (gigi): Recreate optimization_default_node and optimization_current_node after tweaking global_options. --- gcc/ada/gcc-interface/trans.c.jj 2015-01-12 18:56:10.000000000 +0100 +++ gcc/ada/gcc-interface/trans.c 2015-02-06 16:39:04.353363393 +0100 @@ -678,6 +678,11 @@ gigi (Node_Id gnat_root, if (No_Strict_Aliasing_CP) flag_strict_aliasing = 0; + /* Save the current optimization options again after the above possible + global_options changes. */ + optimization_default_node = build_optimization_node (&global_options); + optimization_current_node = optimization_default_node; + /* Now translate the compilation unit proper. */ Compilation_Unit_to_gnu (gnat_root); Jakub