Consider the following Fortran snippet: subroutine sub integer :: nRead !$omp critical if (nRead<3) return !$omp end critical end subroutine
Compiling this with "gfortran -fopenmp" results in a segfault (with 4.4.1 and current trunk on x86_64-unknown-linux-gnu). The backtrace is: #0 0x0000000000a0abcc in main_block_label (label=0x7ffff7f64180) at /home/jweil/gcc45/trunk/gcc/tree-cfg.c:1064 #1 0x0000000000a0b157 in cleanup_dead_labels () at /home/jweil/gcc45/trunk/gcc/tree-cfg.c:1192 #2 0x0000000000a08f27 in build_gimple_cfg (seq=0x7ffff7f54600) at /home/jweil/gcc45/trunk/gcc/tree-cfg.c:201 #3 0x0000000000a08fd1 in execute_build_cfg () at /home/jweil/gcc45/trunk/gcc/tree-cfg.c:238 #4 0x0000000000907d9b in execute_one_pass (pass=0x16c4dc0) at /home/jweil/gcc45/trunk/gcc/passes.c:1556 #5 0x0000000000907f8f in execute_pass_list (pass=0x16c4dc0) at /home/jweil/gcc45/trunk/gcc/passes.c:1611 #6 0x0000000000a7fe21 in tree_lowering_passes (fn=0x7ffff7f63f00) at /home/jweil/gcc45/trunk/gcc/tree-optimize.c:364 #7 0x0000000000cc9f23 in cgraph_lower_function (node=0x7ffff7e7d4e0) at /home/jweil/gcc45/trunk/gcc/cgraphunit.c:499 #8 0x0000000000ccadf3 in cgraph_analyze_function (node=0x7ffff7e7d4e0) at /home/jweil/gcc45/trunk/gcc/cgraphunit.c:847 #9 0x0000000000ccb347 in cgraph_analyze_functions () at /home/jweil/gcc45/trunk/gcc/cgraphunit.c:979 #10 0x0000000000ccb7b8 in cgraph_finalize_compilation_unit () at /home/jweil/gcc45/trunk/gcc/cgraphunit.c:1084 #11 0x00000000008aa088 in write_global_declarations () at /home/jweil/gcc45/trunk/gcc/langhooks.c:309 #12 0x00000000009fe59d in compile_file () at /home/jweil/gcc45/trunk/gcc/toplev.c:1061 #13 0x0000000000a00775 in do_compile () at /home/jweil/gcc45/trunk/gcc/toplev.c:2387 #14 0x0000000000a0084b in toplev_main (argc=3, argv=0x7fffffffe2c8) at /home/jweil/gcc45/trunk/gcc/toplev.c:2429 #15 0x00000000005dbcac in main (argc=3, argv=0x7fffffffe2c8) at /home/jweil/gcc45/trunk/gcc/main.c:35 -- Summary: ICE with -fopenmp Product: gcc Version: 4.5.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: janus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42484