------- Comment #13 from hubicka at gcc dot gnu dot org 2009-02-22 14:46 ------- There are obviously giant trees of blocks that have all variables unused and no statements in them coming from the early inliner. I am getting convinced we can safely prune those even at -g3: user can not breakpoint into the block in any way and can't ask for the value....
So I guess we could be at -g eliminating inner blocks with no used variables and no statements just keeping around blocks with statements including the unused vars so we can get proper "optimized out" debugger info. I will prepare patch for this. Honza -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37709
