https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86569
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-07-18 CC| |msebor at gcc dot gnu.org See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=86567 Ever confirmed|0 |1 --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- Confirmed. See also bug 86567. $ cat t.C && gcc -S -fcompare-debug=-Wnonnull-compare t.C bool b; int main () { return ((!b) != 0); } xg++: error: t.C: -fcompare-debug failure (length)