diff options
Diffstat (limited to 'gcc/graph.c')
| -rw-r--r-- | gcc/graph.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/graph.c b/gcc/graph.c index 51837308bb4..1ecfdf0b761 100644 --- a/gcc/graph.c +++ b/gcc/graph.c @@ -213,7 +213,8 @@ draw_cfg_nodes_for_loop (pretty_printer *pp, int funcdef_no, unsigned int i; const char *fillcolors[3] = { "grey88", "grey77", "grey66" }; - if (loop->latch != EXIT_BLOCK_PTR) + if (loop->header != NULL + && loop->latch != EXIT_BLOCK_PTR) pp_printf (pp, "\tsubgraph cluster_%d_%d {\n" "\tstyle=\"filled\";\n" @@ -229,6 +230,9 @@ draw_cfg_nodes_for_loop (pretty_printer *pp, int funcdef_no, for (struct loop *inner = loop->inner; inner; inner = inner->next) draw_cfg_nodes_for_loop (pp, funcdef_no, inner); + if (loop->header == NULL) + return; + if (loop->latch == EXIT_BLOCK_PTR) body = get_loop_body (loop); else |