https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123792
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Wilco Dijkstra <[email protected]>: https://gcc.gnu.org/g:3cb7c85eebd985509eae977a45d081b9038ce6ec commit r16-7064-g3cb7c85eebd985509eae977a45d081b9038ce6ec Author: Wilco Dijkstra <[email protected]> Date: Fri Jan 23 17:48:00 2026 +0000 AArch64: Allow invert for shift counts [PR 123792] Optimize 1 << (31 - x) into 1 << ~x. This fixes part of PR 123792. gcc: PR target/123792 * config/aarch64/aarch64.md (aarch64_<optab>_reg_minus<mode>3): Add support for invert in shift count. gcc/testsuite: PR target/123792 * gcc.target/aarch64/pr123792.c: New test.
