[Bug rtl-optimization/55290] sparseset by design depends on uninitialised values but valgrind doesn't get it

2012-11-12 Thread steven at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55290



Steven Bosscher steven at gcc dot gnu.org changed:



   What|Removed |Added



 CC||steven at gcc dot gnu.org

Summary|LRA depends on  |sparseset by design depends

   |uninitialised values|on uninitialised values but

   ||valgrind doesn't get it



--- Comment #1 from Steven Bosscher steven at gcc dot gnu.org 2012-11-12 
20:41:19 UTC ---

Looks like a valgrind bug to me. There is a VALGRIND_DISCARD for this

in sparseset.c:39.

[Bug rtl-optimization/55290] sparseset by design depends on uninitialised values but valgrind doesn't get it

2012-11-12 Thread jakub at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55290



Jakub Jelinek jakub at gcc dot gnu.org changed:



   What|Removed |Added



 Status|UNCONFIRMED |RESOLVED

 CC||jakub at gcc dot gnu.org

 Resolution||DUPLICATE



--- Comment #2 from Jakub Jelinek jakub at gcc dot gnu.org 2012-11-13 
07:29:25 UTC ---

But VALGRIND_DISCARD expands to nothing unless --enable-checking=valgrind

(which is terribly expensive and thus usually not enabled).



*** This bug has been marked as a duplicate of bug 54783 ***