https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85164
David Binderman <dcb314 at hotmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org --- Comment #1 from David Binderman <dcb314 at hotmail dot com> --- Still going wrong. Here is another test case: $ ~/gcc/results.263471.ubsan/bin/gcc -c -O2 bug456.c ../../trunk/gcc/poly-int.h:1941:12: runtime error: negation of -9223372036854775808 cannot be represented in type 'long int'; cast to an unsigned type to negate this value to itself $ more bug456.c int a; long b; void c() { b = -9223372036854775807L - 1 - a; } $