From f5ad15e3699c0d07ab2b06865f3a8ae209d021d0 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Fri, 27 Oct 2023 20:35:04 +0100
Subject: Chapter 5: If Statement, Phi, and Region
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Co-authored-by: Dibyendu Majumdar <mobile@majumdar.org.uk>
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: Hsiang-Ying Fu <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Tamas Hadhazy <helsgithub15@gmail.com>
Co-authored-by: Symious <14933944+symious@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: tannal <tannal2409@gmail.com>
Co-authored-by: hadha <helsgithub15@gmail.com>
Co-authored-by: fuhsnn <66062782+fuhsnn@users.noreply.github.com>
Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
Co-authored-by: RobertObkircher <robert.obkircher@gmail.com>
Co-authored-by: Jun Kawasaki <jun784@gmail.com>
Co-authored-by: David Rubin <87927264+Rexicon226@users.noreply.github.com>
---
 docs/chapter05/05-graph1.gv | 88 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 docs/chapter05/05-graph1.gv

(limited to 'docs/chapter05/05-graph1.gv')

diff --git a/docs/chapter05/05-graph1.gv b/docs/chapter05/05-graph1.gv
new file mode 100644
index 00000000..b5cf8370
--- /dev/null
+++ b/docs/chapter05/05-graph1.gv
@@ -0,0 +1,88 @@
+digraph chapter05 {
+/*
+int a = 1;
+if (arg == 1)
+    a = arg+2;
+else {
+    a = arg-3;
+
+}
+
+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">$ctrl</TD><TD PORT="p1">arg</TD></TR>
+				</TABLE>
+			</TD></TR>
+			</TABLE>>
+		];
+		Con_7 [ label="#1" ];
+		EQNode8 [ label="==" ];
+		If9 [ shape=plaintext label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
+			<TR><TD BGCOLOR="yellow">If</TD></TR>
+			<TR><TD>
+				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+				<TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR>
+				</TABLE>
+			</TD></TR>
+			</TABLE>>
+		];
+		Con_13 [ label="#2" ];
+		Add14 [ label="+" ];
+		Con_15 [ label="#3" ];
+		Sub16 [ label="-" ];
+	}
+	node [shape=plaintext];
+	subgraph cluster_Scope1_0 {
+		Scope1_0 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">0</TD><TD PORT="Scope1_0_$ctrl">$ctrl</TD><TD PORT="Scope1_0_arg">arg</TD></TR>
+			</TABLE>>];
+	subgraph cluster_Scope1_1 {
+		Scope1_1 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">1</TD><TD PORT="Scope1_1_a">a</TD></TR>
+			</TABLE>>];
+	}
+	}
+	node [shape=plaintext];
+	subgraph cluster_Scope12_0 {
+		Scope12_0 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">0</TD><TD PORT="Scope12_0_$ctrl">$ctrl</TD><TD PORT="Scope12_0_arg">arg</TD></TR>
+			</TABLE>>];
+	subgraph cluster_Scope12_1 {
+		Scope12_1 [label=<
+			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+			<TR><TD BGCOLOR="cyan">1</TD><TD PORT="Scope12_1_a">a</TD></TR>
+			</TABLE>>];
+	}
+	}
+	edge [ fontname=Helvetica, fontsize=8 ];
+	EQNode8 -> Start2:p1[taillabel=1];
+	EQNode8 -> Con_7[taillabel=2];
+	If9 -> Start2:p0[taillabel=0; color=red];
+	If9 -> EQNode8[taillabel=1];
+	Add14 -> Start2:p1[taillabel=1];
+	Add14 -> Con_13[taillabel=2];
+	Sub16 -> Start2:p1[taillabel=1];
+	Sub16 -> Con_15[taillabel=2];
+	edge [style=dashed color=cornflowerblue];
+	Scope1_0:"Scope1_0_$ctrl" -> If9:p0;
+	Scope1_0:"Scope1_0_arg" -> Start2:p1;
+	Scope1_1:"Scope1_1_a" -> Add14;
+	edge [style=dashed color=cornflowerblue];
+	Scope12_0:"Scope12_0_$ctrl" -> If9:p1;
+	Scope12_0:"Scope12_0_arg" -> Start2:p1;
+	Scope12_1:"Scope12_1_a" -> Sub16;
+}
-- 
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