The following valid code snippet triggers an ICE on mainline when compiled with "-fprofile-arcs -fopenmp":
======================================================= void foo() { #pragma omp for for (int i=0; i<10; ++i) ; } ======================================================= bug.cc: In function 'void foo()': bug.cc:3: internal compiler error: in expand_omp_for_static_nochunk, at omp-low.c:2916 Please submit a full bug report, [etc.] If I add "schedule(dynamic)", I get a slightly different error: ======================================================= void foo() { #pragma omp for schedule(dynamic) for (int i=0; i<10; ++i) ; } ======================================================= bug.cc: In function 'void foo()': bug.cc:3: internal compiler error: in expand_omp_for_generic, at omp-low.c:2714 Please submit a full bug report, [etc.] -- Summary: [4.3 regression] ICE with "-fprofile-arcs -fopenmp" Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: ice-on-valid-code, monitored, openmp Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: reichelt at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34610