From a4e94ec9b81c4d4c4c30103952804538e2a96acc Mon Sep 17 00:00:00 2001
From: Vishnunarayan K I <appukuttancr@gmail.com>
Date: Tue, 27 Oct 2020 20:14:38 +0530
Subject: [PATCH] update gsgdt

---
 Cargo.lock                                   | 4 ++--
 compiler/rustc_mir/Cargo.toml                | 2 +-
 compiler/rustc_mir/src/util/generic_graph.rs | 7 +++----
 compiler/rustc_mir/src/util/graphviz.rs      | 4 ++--
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index fb52f4201c0..e4b566e6690 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1342,9 +1342,9 @@ dependencies = [
 
 [[package]]
 name = "gsgdt"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cb4a3313cdc3c65906272ddd8987c7291ff6df4b5c9997c1232b6acd1ceab24"
+checksum = "a0d876ce7262df96262a2a19531da6ff9a86048224d49580a585fc5c04617825"
 dependencies = [
  "serde",
 ]
diff --git a/compiler/rustc_mir/Cargo.toml b/compiler/rustc_mir/Cargo.toml
index 28ba089d062..b2af26575f1 100644
--- a/compiler/rustc_mir/Cargo.toml
+++ b/compiler/rustc_mir/Cargo.toml
@@ -10,7 +10,7 @@ doctest = false
 [dependencies]
 either = "1.5.0"
 rustc_graphviz = { path = "../rustc_graphviz" }
-gsgdt = "0.1.1"
+gsgdt = "0.1.2"
 itertools = "0.9"
 tracing = "0.1"
 polonius-engine = "0.12.0"
diff --git a/compiler/rustc_mir/src/util/generic_graph.rs b/compiler/rustc_mir/src/util/generic_graph.rs
index df9f94016c8..acaca435aa1 100644
--- a/compiler/rustc_mir/src/util/generic_graph.rs
+++ b/compiler/rustc_mir/src/util/generic_graph.rs
@@ -1,13 +1,12 @@
-use gsgdt::{Edge, Graph, GraphKind, Node, NodeStyle};
+use gsgdt::{Edge, Graph, Node, NodeStyle};
 use rustc_hir::def_id::DefId;
 use rustc_index::vec::Idx;
 use rustc_middle::mir::*;
 use rustc_middle::ty::TyCtxt;
 
 /// Convert an MIR function into a gsgdt Graph
-pub fn mir_fn_to_generic_graph<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'_>, subgraph: bool) -> Graph {
+pub fn mir_fn_to_generic_graph<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'_>) -> Graph {
     let def_id = body.source.def_id();
-    let kind = if subgraph { GraphKind::Subgraph } else { GraphKind::Digraph };
     let def_name = graphviz_safe_def_name(def_id);
     let graph_name = format!("Mir_{}", def_name);
     let dark_mode = tcx.sess.opts.debugging_opts.graphviz_dark_mode;
@@ -33,7 +32,7 @@ pub fn mir_fn_to_generic_graph<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'_>, subgrap
         }
     }
 
-    Graph::new(graph_name, kind, nodes, edges)
+    Graph::new(graph_name, nodes, edges)
 }
 
 fn bb_to_graph_node(block: BasicBlock, body: &Body<'_>, dark_mode: bool) -> Node {
diff --git a/compiler/rustc_mir/src/util/graphviz.rs b/compiler/rustc_mir/src/util/graphviz.rs
index 8060eaab874..d81759267b2 100644
--- a/compiler/rustc_mir/src/util/graphviz.rs
+++ b/compiler/rustc_mir/src/util/graphviz.rs
@@ -60,14 +60,14 @@ where
     let mut label = String::from("");
     // FIXME: remove this unwrap
     write_graph_label(tcx, body, &mut label).unwrap();
-    let g = mir_fn_to_generic_graph(tcx, body, subgraph);
+    let g = mir_fn_to_generic_graph(tcx, body);
     let settings = GraphvizSettings {
         graph_attrs: Some(graph_attrs.join(" ")),
         node_attrs: Some(content_attrs.join(" ")),
         edge_attrs: Some(content_attrs.join(" ")),
         graph_label: Some(label),
     };
-    g.to_dot(w, &settings)
+    g.to_dot(w, &settings, subgraph)
 }
 
 /// Write the graphviz DOT label for the overall graph. This is essentially a block of text that