diff options
Diffstat (limited to 'gcc/analyzer/supergraph.cc')
| -rw-r--r-- | gcc/analyzer/supergraph.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/analyzer/supergraph.cc b/gcc/analyzer/supergraph.cc index fd905ea..1dcc274 100644 --- a/gcc/analyzer/supergraph.cc +++ b/gcc/analyzer/supergraph.cc @@ -450,6 +450,8 @@ supernode::dump_dot (graphviz_out *gv, const dump_args_t &args) const pp_string (pp, "<TABLE BORDER=\"0\">"); pp_write_text_to_stream (pp); + bool had_row = false; + if (m_returning_call) { gv->begin_tr (); @@ -464,18 +466,22 @@ supernode::dump_dot (graphviz_out *gv, const dump_args_t &args) const if (args.m_node_annotator) args.m_node_annotator->add_stmt_annotations (gv, m_returning_call); pp_newline (pp); + + had_row = true; } if (entry_p ()) { pp_string (pp, "<TR><TD>ENTRY</TD></TR>"); pp_newline (pp); + had_row = true; } if (return_p ()) { pp_string (pp, "<TR><TD>EXIT</TD></TR>"); pp_newline (pp); + had_row = true; } /* Phi nodes. */ @@ -492,6 +498,7 @@ supernode::dump_dot (graphviz_out *gv, const dump_args_t &args) const args.m_node_annotator->add_stmt_annotations (gv, stmt); pp_newline (pp); + had_row = true; } /* Statements. */ @@ -508,6 +515,15 @@ supernode::dump_dot (graphviz_out *gv, const dump_args_t &args) const args.m_node_annotator->add_stmt_annotations (gv, stmt); pp_newline (pp); + had_row = true; + } + + /* Graphviz requires a TABLE element to have at least one TR + (and each TR to have at least one TD). */ + if (!had_row) + { + pp_string (pp, "<TR><TD>(empty)</TD></TR>"); + pp_newline (pp); } pp_string (pp, "</TABLE>>];\n\n"); |