From eee5b806fabae0b480ff7d41159369c5a457d014 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Tue, 26 Nov 2024 11:01:47 -0800
Subject: Chapter 18: Functions

---
 .../java/com/seaofnodes/simple/fuzzer/Fuzzer.java  | 48 +++++++++-------------
 .../com/seaofnodes/simple/fuzzer/FuzzerUtils.java  | 11 ++---
 .../seaofnodes/simple/fuzzer/ScriptGenerator.java  |  5 ++-
 3 files changed, 26 insertions(+), 38 deletions(-)

(limited to 'src/test/java/com/seaofnodes/simple/fuzzer')

diff --git a/src/test/java/com/seaofnodes/simple/fuzzer/Fuzzer.java b/src/test/java/com/seaofnodes/simple/fuzzer/Fuzzer.java
index 51e39cd0..f57a0031 100644
--- a/src/test/java/com/seaofnodes/simple/fuzzer/Fuzzer.java
+++ b/src/test/java/com/seaofnodes/simple/fuzzer/Fuzzer.java
@@ -1,10 +1,9 @@
 package com.seaofnodes.simple.fuzzer;
 
 import com.seaofnodes.simple.Parser;
-import com.seaofnodes.simple.evaluator.Evaluator;
+import com.seaofnodes.simple.Eval2;
+import com.seaofnodes.simple.CodeGen;
 import com.seaofnodes.simple.node.Node;
-import com.seaofnodes.simple.node.StopNode;
-
 import java.util.ArrayList;
 import java.util.Objects;
 import java.util.Random;
@@ -46,8 +45,8 @@ public class Fuzzer {
         e.printStackTrace(System.out);
         System.out.println("========== Seed ==========");
         System.out.println(seed);
-        System.out.println("========== Code ===========");
-        System.out.println(script);
+        //System.out.println("========== Code ===========");
+        //System.out.println(script);
         System.out.println("========= Reduced =========");
         System.out.println(Reducer.reduce(script, e, reproducer));
         System.out.println("===========================");
@@ -56,13 +55,6 @@ public class Fuzzer {
 
     private static boolean neq(Object a, Object b) {
         if (Objects.equals(a, b)) return false;
-        if (a instanceof Evaluator.Obj ea && b instanceof Evaluator.Obj eb) {
-            if (ea.struct() != eb.struct()) return true;
-            for(int i=0;i<ea.fields().length;i++) {
-                if (neq(ea.fields()[i], eb.fields()[i])) return true;
-            }
-            return false;
-        }
         return true;
     }
 
@@ -72,11 +64,11 @@ public class Fuzzer {
      * @param e2 Evaluator for the second graph
      * @param in The input value to both graphs to test for an equal output
      */
-    private static void checkGraphs(Evaluator e1, Evaluator e2, long in) {
-        var r1 = e1.evaluate(in, EVAL_TIMEOUT);
-        var r2 = e2.evaluate(in, EVAL_TIMEOUT);
-        if (r1 == Evaluator.Status.TIMEOUT || r2 == Evaluator.Status.TIMEOUT) return;
-        if (neq(r1, r2))
+    private static void checkGraphs(CodeGen code1, CodeGen code2, long in) {
+        var r1 = Eval2.eval(code1, in, EVAL_TIMEOUT);
+        var r2 = Eval2.eval(code2, in, EVAL_TIMEOUT);
+        if( r1 == null || r2 == null ) return; // Timeout test invalid
+        if( neq(r1, r2) )
             throw new RuntimeException("Different calculations values " + r1 + " vs " + r2);
     }
 
@@ -88,27 +80,25 @@ public class Fuzzer {
      * @param valid If the script is definitely valid. If not some exceptions may be suppressed.
      */
     private static void runCheck(String script, boolean valid) {
-        StopNode stop1;
+        CodeGen code1;
         try {
-            stop1 = FuzzerUtils.parse(script, false);
+            code1 = FuzzerUtils.parse(script, false);
         } catch (RuntimeException e1) {
             try {
                 FuzzerUtils.parse(script, true);
             } catch (RuntimeException e2) {
                 if (FuzzerUtils.isExceptionFromSameCause(e1, e2)) {
-                    if (!valid || e1.getClass() == RuntimeException.class) return;
+                    if (!valid || e1.getClass() == Parser.ParseException.class) return;
                 } else {
                     e1.addSuppressed(e2);
                 }
             }
             throw e1;
         }
-        var stop2 = FuzzerUtils.parse(script, true);
-        var e1 = new Evaluator(stop1);
-        var e2 = new Evaluator(stop2);
-        checkGraphs(e1, e2, 0);
-        checkGraphs(e1, e2, 1);
-        checkGraphs(e1, e2, 10);
+        CodeGen code2 = FuzzerUtils.parse(script, true);
+        checkGraphs(code1, code2, 0);
+        checkGraphs(code1, code2, 1);
+        checkGraphs(code1, code2, 10);
     }
 
     /**
@@ -133,9 +123,9 @@ public class Fuzzer {
         var sb = new StringBuilder();
         new ScriptGenerator(rand, sb, true).genProgram();
         try {
-            var parser = new Parser(sb.toString());
+            var code = new CodeGen(sb.toString());
 
-            var stop = parser.parse();
+            code.parse();
             int parse_peeps= Node.ITER_CNT;
             int parse_nops = Node.ITER_NOP_CNT;
             double parse_nop_ratio = (double)parse_nops/parse_peeps;
@@ -144,7 +134,7 @@ public class Fuzzer {
 
             double parse_peeps_per_node = (double)parse_peeps/nids;
 
-            stop.iterate();
+            code.opto();
             int iter_peeps= Node.ITER_CNT;
             int iter_nops = Node.ITER_NOP_CNT;
             double iter_nop_ratio = (double)iter_nops/iter_peeps;
diff --git a/src/test/java/com/seaofnodes/simple/fuzzer/FuzzerUtils.java b/src/test/java/com/seaofnodes/simple/fuzzer/FuzzerUtils.java
index 18ef069a..62a149a8 100644
--- a/src/test/java/com/seaofnodes/simple/fuzzer/FuzzerUtils.java
+++ b/src/test/java/com/seaofnodes/simple/fuzzer/FuzzerUtils.java
@@ -1,10 +1,9 @@
 package com.seaofnodes.simple.fuzzer;
 
+import com.seaofnodes.simple.CodeGen;
 import com.seaofnodes.simple.IterPeeps;
-import com.seaofnodes.simple.Parser;
 import com.seaofnodes.simple.node.Node;
 import com.seaofnodes.simple.node.StopNode;
-
 import java.io.OutputStream;
 import java.io.PrintStream;
 import java.lang.invoke.MethodHandle;
@@ -115,7 +114,7 @@ class FuzzerUtils {
     /**
      * Parse script with peepholes enabled or disabled
      */
-    public static StopNode parse(String script, boolean runPeeps) {
+    public static CodeGen parse(String script, boolean runPeeps) {
         var err = System.err;
         var out = System.out;
         try {
@@ -126,10 +125,8 @@ class FuzzerUtils {
             } catch (Throwable e) {
                 throw rethrow(e);
             }
-            var parser = new Parser(script);
-            Node._disablePeephole = !runPeeps;
-            var stop = parser.parse();
-            return runPeeps ? stop.iterate() : stop;
+            var code = new CodeGen(script);
+            return code.parse(!runPeeps).opto().typeCheck().GCM().localSched();
         } finally {
             NodeWalkVisit.clear();
             System.setErr(err);
diff --git a/src/test/java/com/seaofnodes/simple/fuzzer/ScriptGenerator.java b/src/test/java/com/seaofnodes/simple/fuzzer/ScriptGenerator.java
index d3cbb0ee..86dbe66a 100644
--- a/src/test/java/com/seaofnodes/simple/fuzzer/ScriptGenerator.java
+++ b/src/test/java/com/seaofnodes/simple/fuzzer/ScriptGenerator.java
@@ -483,7 +483,7 @@ public class ScriptGenerator {
             fields[i] = new TypeStruct.Field(fieldName.toString(), type, struct);
         }
         indentation -= INDENTATION;
-        printIndentation().append("}");
+        printIndentation().append("};");
         struct.fields = fields;
         forwardStructs.remove(struct);
         structs.add(struct);
@@ -683,7 +683,8 @@ public class ScriptGenerator {
     public int genDecl() {
         var type = getType();
         var name = getVarName();
-        sb.append(generateInvalid() ? getRandomName() : type.name).append(" ").append(name);
+        // Always make them mutable
+        sb.append(generateInvalid() ? getRandomName() : type.name).append(" !").append(name);
         if (!(type instanceof TypeNullable) || random.nextBoolean()) {
             sb.append("=");
             genExpression(type, true);
-- 
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