Following testcase fails when dumping RTL debug files (-da): --cut here-- int e[1024];
int foo (void) { int i; for (i = 0; i < 1024; i++) e[i] = i; return 0; } --cut here-- gcc -O2 -ftree-parallelize-loops=2 -da r.c <built-in>: In function âfoo._loopfn.0â: <built-in>:0:0: internal compiler error: vector VEC(int,base) index domain error, in locator_location at cfglayout.c:517 Please submit a full bug report, <etc>. Somehow annoying bug, since it breaks debugging. -- Summary: ICE with -ftree-parallelize-loops=2 in locator_location at cfglayout.c:517 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ubizjak at gmail dot com GCC build triplet: x86_64-pc-gnu-linux GCC host triplet: x86_64-pc-gnu-linux GCC target triplet: x86_64-pc-gnu-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41256