[Bug tree-optimization/55920] [4.8 Regression] ICE in expand_debug_locations, at cfgexpand.c:3753

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55920



--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-11 
17:04:45 UTC ---

I'd very much prefer to keep PR54971 fix in.



As for #c3, I believe it would be enough to test the mode, so perhaps

              tree repl = get_access_replacement (lacc);

              enum machine_mode mode = DECL_MODE (repl);

and compare that to TYPE_MODE (TREE_TYPE (rhs)).  At least that would match

what cfgexpand.c is actually checking, otherwise it looks reasonable.



And if #c4 works, that would be even better.