From d32f97238c903765dec4e9a9f3cbfa5fd12cded6 Mon Sep 17 00:00:00 2001 From: Cliff Click Date: Mon, 10 Aug 2026 11:11:18 -0700 Subject: Chapter 25: Modules, Separate Compilation, and SSA Construction Co-authored-by: Hsiang-Ying Fu <66062782+fuhsnn@users.noreply.github.com> Co-authored-by: fuhsnn <66062782+fuhsnn@users.noreply.github.com> Co-authored-by: Symious <14933944+symious@users.noreply.github.com> Co-authored-by: Jun Kawasaki Co-authored-by: Claude Opus 5 --- .../com/seaofnodes/simple/node/StartCUNode.java | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/main/java/com/seaofnodes/simple/node/StartCUNode.java (limited to 'src/main/java/com/seaofnodes/simple/node/StartCUNode.java') diff --git a/src/main/java/com/seaofnodes/simple/node/StartCUNode.java b/src/main/java/com/seaofnodes/simple/node/StartCUNode.java new file mode 100644 index 00000000..cd51f603 --- /dev/null +++ b/src/main/java/com/seaofnodes/simple/node/StartCUNode.java @@ -0,0 +1,33 @@ +package com.seaofnodes.simple.node; + +import com.seaofnodes.simple.codegen.CodeGen; +import com.seaofnodes.simple.codegen.Serialize; +import com.seaofnodes.simple.type.Type; +import com.seaofnodes.simple.util.BAOS; + +import java.util.HashMap; +import java.util.IdentityHashMap; + +// Start of a single compilation unit, distinct from the outer whole-program Start. +public class StartCUNode extends StartNode { + public final String _fname; + public StartCUNode(StartNode start, StopCUNode stop, Type arg, String fname) { super(start,stop,arg); _fname = fname; } + public StartCUNode(StartCUNode start) { super(start); _fname = start._fname; } + @Override public Tag serialTag() { return Tag.StartCU; } + @Override public void packed( BAOS baos, HashMap strs, HashMap types, IdentityHashMap anodes ) { + baos.packed2(types.get(_arg)); + baos.packed2(strs.get(_fname)); + } + static Node make( BAOS bais, String[] strs, Type[] types ) { + return new StartCUNode(null,null,types[bais.packed2()],strs[bais.packed2()]); + } + + @Override public CFGNode cfg0() { return (CFGNode)in(0); } + + // IDom is cfg0() and depth is always Start+1 which is 0+1 or 1 + @Override public int idepth() { return 1; } + @Override public CFGNode idom(Node dep) { return cfg0(); } + @Override public void gather( HashMap strs ) { + Serialize.gather(strs,_fname); + } +} -- cgit v1.2.3