[gcc/devel/ranger] analyzer: show BBs in .dot dumps

[Aldy Hernandez]

https://gcc.gnu.org/g:73f386581bddc4d630b93eeb0cddd32943bf24e7

commit 73f386581bddc4d630b93eeb0cddd32943bf24e7
Author: David Malcolm <dmalcolm@redhat.com>
Date:   Mon Feb 3 09:55:26 2020 -0500

    analyzer: show BBs in .dot dumps
    
    gcc/analyzer/ChangeLog:
            * engine.cc (supernode_cluster::dump_dot): Show BB index as
            well as SN index.
            * supergraph.cc (supernode::dump_dot): Likewise.

Diff:
---
 gcc/analyzer/ChangeLog     | 6 ++++++
 gcc/analyzer/engine.cc     | 3 ++-
 gcc/analyzer/supergraph.cc | 2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index 9229bb1e74a..9b8820ede03 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,9 @@
+2020-02-03  David Malcolm  <dmalcolm@redhat.com>
+
+	* engine.cc (supernode_cluster::dump_dot): Show BB index as
+	well as SN index.
+	* supergraph.cc (supernode::dump_dot): Likewise.
+
 2020-02-03  David Malcolm  <dmalcolm@redhat.com>
 
 	PR analyzer/93546
diff --git a/gcc/analyzer/engine.cc b/gcc/analyzer/engine.cc
index 9acec704224..66ca37ea33b 100644
--- a/gcc/analyzer/engine.cc
+++ b/gcc/analyzer/engine.cc
@@ -2811,7 +2811,8 @@ public:
 		 (const void *)this);
     gv->indent ();
     gv->println ("style=\"dashed\";");
-    gv->println ("label=\"SN: %i\";", m_supernode->m_index);
+    gv->println ("label=\"SN: %i (bb: %i)\";",
+		 m_supernode->m_index, m_supernode->m_bb->index);
 
     int i;
     exploded_node *enode;
diff --git a/gcc/analyzer/supergraph.cc b/gcc/analyzer/supergraph.cc
index a5bf52d8aca..b20daa081d2 100644
--- a/gcc/analyzer/supergraph.cc
+++ b/gcc/analyzer/supergraph.cc
@@ -437,7 +437,7 @@ supernode::dump_dot (graphviz_out *gv, const dump_args_t &args) const
   gv->println("style=\"solid\";");
   gv->println("color=\"black\";");
   gv->println("fillcolor=\"lightgrey\";");
-  gv->println("label=\"sn: %i\";", m_index);
+  gv->println("label=\"sn: %i (bb: %i)\";", m_index, m_bb->index);
 
   pretty_printer *pp = gv->get_pp ();