http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46440
Summary: [4.5/4.6 Regression] ICE: in rtl_verify_flow_info, at cfgrtl.c:2165 with -fstack-protector-all -fno-tree-dominator-opts -fno-tree-fre Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 22375 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22375 reduced testcase (from gcc.dg/tree-ssa/pr17141-2.c) Compiler output: $ gcc -O -fstack-protector-all -fno-tree-dominator-opts -fno-tree-fre pr46440.c pr46440.c: In function 'foo': pr46440.c:16:1: error: verify_flow_info: Incorrect fallthru 2->3 pr46440.c:16:1: error: wrong insn in the fallthru edge (barrier 15 24 33) pr46440.c:16:1: internal compiler error: in rtl_verify_flow_info, at cfgrtl.c:2165 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Tested revisions: r166509 - crash r153685 - crash 4.5 r166509 - crash 4.4 r166509 - OK