Common Report Var(flag_optimize_sibling_calls)
Optimize sibling and tail recursive calls
+fpre-ipa-mem-report
+Common Report Var(pre_ipa_mem_report)
+Report on memory allocation before interprocedural optimization
+
+fpost-ipa-mem-report
+Common Report Var(post_ipa_mem_report)
+Report on memory allocation before interprocedural optimization
+
fpack-struct
Common Report Var(flag_pack_struct)
Pack structure members together without holes