https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83396
--- Comment #82 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Author: aoliva Date: Tue Dec 19 17:50:31 2017 New Revision: 255833 URL: https://gcc.gnu.org/viewcvs?rev=255833&root=gcc&view=rev Log: [SFN] start rtl block with label, then markers Emitting markers before labels turned out to not be worth the trouble. The markers outside BBs confuse the ebb scheduler, and they don't add any useful information. I'll arrange for markers to be moved past labels, even in gimple, but for now this will fix the two remaining known problems on ia64. for gcc/ChangeLog PR bootstrap/83396 * cfgexpand.c (expand_gimple_basic_block): Expand label first, even if there are markers before it. * cfgrtl.c (rtl_verify_bb_layout): Reject DEBUG_INSNs outside BBs. Modified: trunk/gcc/ChangeLog trunk/gcc/cfgexpand.c trunk/gcc/cfgrtl.c