------- Comment #10 from jh at suse dot cz 2006-12-19 14:12 ------- Subject: Re: [4.2/4.3 regression] ICE with scheduling and __builtin_trap
> > cfgrtl.c: rtl_verify_flow_info () makes the same statement as > control_flow_insn_p (): > /* We may have a barrier inside a basic block before dead code > elimination. There is no BLOCK_FOR_INSN field in a barrier. */ Duh, I would consider HP's patch adding the hunk to verify_flow_info in 2004 as incorrect even if it was commited as obvious. Clearly we don't want to have barriers within basic blocks, dead code ellimination done or not, especially not at the scheduling time! (frankly, we don't want to have barriers at first place) I would suggest put that hunk in (it was probably just merge omision from my side) and try to remove the verify_flow_info bit and see if everything works. I can do it tonight or tomorrow unless you beat me. Honza -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29841
