https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112356
Bug ID: 112356 Summary: `x == MIN & x > y` is not optimized to 0 if x was casted to signed from unsigned Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: tree-optimization Assignee: pinskia at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- Take: ``` #include <limits.h> signed f2_1( unsigned x, signed y) { signed xs = x; signed t = x == INT_MIN; signed t1 = xs > y; return t & t1; } ``` This is not optimized to 0.