https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69922
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #37780|0 |1
is obsolete| |
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-02-24
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 37781
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37781&action=edit
gcc6-pr69922.patch
Untested fix, which just avoids folding if an artificial TREE_NO_WARNING
comparison is turned into something it doesn't understand. There is always the
hope that GIMPLE optimizations will optimize it later on; if there are
important
folding patterns we could easily detect and propagate TREE_NO_WARNING to (e.g.
one level of COND_EXPR optimized by fold_binary_op_with_conditional_arg perhaps
could be handled), then those can be added incrementally.
