http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56457
Bug #: 56457 Summary: Bogus warning: loop-invariant.c:786:20: error: unused variable ‘regno’ when building vax-*-* Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Keywords: build, diagnostic Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: amyl...@gcc.gnu.org Blocks: 44756 Host: i686-pc-linux-gnu Target: vax-linux-gnu, vax-netbsdelf ../../../gcc/gcc/loop-invariant.c: In function ‘bool check_dependency(basic_block, df_ref, bitmap)’: ../../../gcc/gcc/loop-invariant.c:786:20: error: unused variable ‘regno’ [-Werror=unused-variable] unsigned int regno = DF_REF_REGNO (use); ^ cc1plus: all warnings being treated as errors