https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
Martin Jambor jamborm at gcc dot gnu.org changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #10 from Martin Jambor jamborm at gcc dot gnu.org ---
Honza, given what you wrote in
https://gcc.gnu.org/ml/gcc-patches/2014-12/msg01033.html
do you want to take over this bug?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #6 from Marek Polacek mpolacek at gcc dot gnu.org ---
It appears that devirt changes
_4 = this_1(D)-D.2680;
OBJ_TYPE_REF(_3;(struct top)_4-0) (_4);
into
_4 = this_1(D)-D.2680;
__builtin_unreachable (_4);
but __builtin_unreachable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #7 from Marek Polacek mpolacek at gcc dot gnu.org ---
And if it is:
diff --git a/gcc/sanopt.c b/gcc/sanopt.c
index ce9fbcf..77b88f7 100644
--- a/gcc/sanopt.c
+++ b/gcc/sanopt.c
@@ -646,20 +646,21 @@ pass_sanopt::execute (function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #8 from Jakub Jelinek jakub at gcc dot gnu.org ---
I think it is a gimple-fold/ipa-devirt etc. bug.
__builtin_unreachable doesn't have any arguments, so pretending it has is
broken and also a missed optimization, in the IL we think
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
Martin Jambor jamborm at gcc dot gnu.org changed:
What|Removed |Added
Assignee|mpolacek at gcc dot gnu.org|jamborm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #4 from Martin Jambor jamborm at gcc dot gnu.org ---
(In reply to Marek Polacek from comment #3)
Recently I rewrote the implementation of -fsanitize=unreachable and now I
get an Illegal instruction on the testcase attached. So is
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
Marek Polacek mpolacek at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |ASSIGNED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
Martin Jambor jamborm at gcc dot gnu.org changed:
What|Removed |Added
CC||mpolacek at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
--- Comment #3 from Marek Polacek mpolacek at gcc dot gnu.org ---
Recently I rewrote the implementation of -fsanitize=unreachable and now I get
an Illegal instruction on the testcase attached. So is there anything else to
do?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61591
Jan Hubicka hubicka at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
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