diff mbox series

Make graph dumps use graphviz format

Message ID 20240502070103.3793A384AB4C@sourceware.org
State New
Headers show
Series Make graph dumps use graphviz format | expand

Commit Message

Richard Biener May 2, 2024, 7 a.m. UTC 
SLP build eventually uses graphds graphs, the following makes its
dump use graphviz format so you can easily visualize it.

Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.

	* graphds.cc (dump_graph): Dump in graphviz format.
---
 gcc/graphds.cc | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/gcc/graphds.cc b/gcc/graphds.cc
index 17d08966f53..ed5bfeb2808 100644
--- a/gcc/graphds.cc
+++ b/gcc/graphds.cc
@@ -31,22 +31,17 @@  dump_graph (FILE *f, struct graph *g)
   int i;
   struct graph_edge *e;
 
+  fprintf (f, "digraph {\n");
   for (i = 0; i < g->n_vertices; i++)
     {
-      if (!g->vertices[i].pred
-	  && !g->vertices[i].succ)
-	continue;
-
-      fprintf (f, "%d (%d)\t<-", i, g->vertices[i].component);
+      fprintf (f, "\"%d\" [label=\"%d (%d): %p\"];\n",
+	       i, i, g->vertices[i].component, g->vertices[i].data);
       for (e = g->vertices[i].pred; e; e = e->pred_next)
-	fprintf (f, " %d", e->src);
-      fprintf (f, "\n");
-
-      fprintf (f, "\t->");
+	fprintf (f, "\"%d\" -> \"%d\" [label=\"%p\"];\n", e->src, e->dest, e->data);
       for (e = g->vertices[i].succ; e; e = e->succ_next)
-	fprintf (f, " %d", e->dest);
-      fprintf (f, "\n");
+	fprintf (f, "\"%d\" -> \"%d\";\n", e->src, e->dest);
     }
+  fprintf (f, "}\n");
 }
 
 /* Creates a new graph with N_VERTICES vertices.  */