https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120604
--- Comment #14 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>: https://gcc.gnu.org/g:03e87c78d399e7fd9510a7db3025a9ed1393e874 commit r16-1483-g03e87c78d399e7fd9510a7db3025a9ed1393e874 Author: Uros Bizjak <ubiz...@gmail.com> Date: Thu Jun 12 14:03:50 2025 +0200 i386: Fix signed integer overflow in ix86_expand_int_movcc, part 2 [PR120604] Make sure we can represent the difference between two 64-bit DImode immediate values in 64-bit HOST_WIDE_INT and return false if this is not the case. ix86_expand_int_movcc is used in mov<mode>cc expaner. Expander will FAIL when the function returns false and middle-end will retry expansion with values forced to registers. PR target/120604 gcc/ChangeLog: * config/i386/i386-expand.cc (ix86_expand_int_movcc): Make sure we can represent the difference between two 64-bit DImode immediate values in 64-bit HOST_WIDE_INT.
