From 1950e4db3f81d5b3ab07add23a1f697f90d3682b Mon Sep 17 00:00:00 2001
From: Dibyendu Majumdar <mobile@majumdar.org.uk>
Date: Fri, 27 Oct 2023 20:35:04 +0100
Subject: Chapter 5: If Statement, Phi, and Region

Co-authored-by: Cliff Click <cliffc@acm.org>
Co-authored-by: XmiliaH <45106915+XmiliaH@users.noreply.github.com>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Co-authored-by: Thalia Archibald <thalia@archibald.dev>
Co-authored-by: Tamas Hadhazy <helsgithub15@gmail.com>
Co-authored-by: David Rubin <87927264+Rexicon226@users.noreply.github.com>
---
 docs/chapter05/05-graph2.gv | 78 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 docs/chapter05/05-graph2.gv

(limited to 'docs/chapter05/05-graph2.gv')

diff --git a/docs/chapter05/05-graph2.gv b/docs/chapter05/05-graph2.gv
new file mode 100644
index 00000000..12506e85
--- /dev/null
+++ b/docs/chapter05/05-graph2.gv
@@ -0,0 +1,78 @@
+digraph chapter05 {
+/*
+int a = 1;
+if (arg == 1)
+    a = arg+2;
+else {
+    a = arg-3;
+    #showGraph;
+}
+#showGraph;
+return a;
+*/
+	rankdir=BT;
+	ordering="in";
+	concentrate="true";
+	subgraph cluster_Nodes {
+		Start2 [ shape=plaintext label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
+			<TR><TD BGCOLOR="yellow">Start</TD></TR>
+			<TR><TD>
+				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+				<TR><TD PORT="p0" BGCOLOR="yellow">$ctrl</TD><TD PORT="p1">arg</TD></TR>
+				</TABLE>
+			</TD></TR>
+			</TABLE>>
+		];
+		Con_7 [ label="#1" ];
+		EQNode8 [ label="==" ];
+		If9 [ shape=plaintext label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
+			<TR><TD BGCOLOR="yellow">If</TD></TR>
+			<TR><TD>
+				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+				<TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR>
+				</TABLE>
+			</TD></TR>
+			</TABLE>>
+		];
+		Con_13 [ label="#2" ];
+		Add14 [ label="+" ];
+		Con_15 [ label="#3" ];
+		Sub16 [ label="-" ];
+		Region17 [ shape=box style=filled fillcolor=yellow label="Region" ];
+		Phi_a18 [ style=filled fillcolor=lightyellow label="&phi;_a" ];
+		{ rank=same; Region17;Phi_a18;}
+	}
+	node [shape=plaintext];
+	subgraph cluster_Scope1_0 {
+		Scope1_0 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">0</TD><TD PORT="Scope1_0_$ctrl">$ctrl</TD><TD PORT="Scope1_0_arg">arg</TD></TR>
+			</TABLE>>];
+	subgraph cluster_Scope1_1 {
+		Scope1_1 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">1</TD><TD PORT="Scope1_1_a">a</TD></TR>
+			</TABLE>>];
+	}
+	}
+	edge [ fontname=Helvetica, fontsize=8 ];
+	EQNode8 -> Start2:p1[taillabel=1];
+	EQNode8 -> Con_7[taillabel=2];
+	If9 -> Start2:p0[taillabel=0 color=red];
+	If9 -> EQNode8[taillabel=1];
+	Add14 -> Start2:p1[taillabel=1];
+	Add14 -> Con_13[taillabel=2];
+	Sub16 -> Start2:p1[taillabel=1];
+	Sub16 -> Con_15[taillabel=2];
+	Region17 -> If9:p0[taillabel=1 color=red];
+	Region17 -> If9:p1[taillabel=2 color=red];
+	Phi_a18 -> Region17 [style=dotted taillabel=0];
+	Phi_a18 -> Add14[taillabel=1];
+	Phi_a18 -> Sub16[taillabel=2];
+	edge [style=dashed color=cornflowerblue];
+	Scope1_0:"Scope1_0_$ctrl" -> Region17;
+	Scope1_0:"Scope1_0_arg" -> Start2:p1;
+	Scope1_1:"Scope1_1_a" -> Phi_a18;
+}
-- 
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