http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46499
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2010-11-16 15:45:09 UTC --- Created attachment 22423 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22423 testcase causing RTL check ICE While reducing the testcase, I got to this, which crashes with RTL checking: $ gcc -O -fno-tree-ccp -fno-tree-dominator-opts pr46499.c pr46499.c: In function 'main': pr46499.c:14:1: internal compiler error: RTL check: expected elt 3 type 'B', have '0' (rtx barrier) in rtl_verify_flow_info_1, at cfgrtl.c:1846 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.