------- Comment #2 from rguenth at gcc dot gnu dot org 2007-11-28 12:15 ------- The two patches reduce the boostrap-debug failures that re-appear with reverting the part that fixes
> http://gcc.gnu.org/ml/gcc-patches/2007-07/msg01745.html regresses the property > that code output with -g must be the same as that without -g. make > bootstrap-debug demonstrates that several files miscompare after this patch, > and don't if the patch is reversed. to ./lcm.o differs ./cfghooks.o differs ./postreload.o differs ./cfgloopmanip.o differs from several dozen miscompares. My bet is that this is because we process the unexpanded_vars list in non-UID order at expansion time. I'm testing a patch that sorts them after UID before expanding (we could also keep a bitmap now with the first patch, but that would be more work now). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34255
