https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98178
Bug ID: 98178 Summary: Combine splitter does not split to single instruction Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: ubizjak at gmail dot com Target Milestone: --- Created attachment 49697 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49697&action=edit Proof-of-concept target patch to reimplement shift insn splitters The PoC patch is trying to reimplement x86 "Avoid useless masking of count operand" define_insn_and_split shift patterns with a combine splitter approach, similar to PR96226.