Add option to enable/disable raw conditional elimination only in FixReads

Author: Felix Berlakovich

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/core/common/GraalOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -207,6 +207,9 @@ public final class GraalOptions {
     @Option(help = "", type = OptionType.Debug)
     public static final OptionKey<Boolean> ReplaceInputsWithConstantsBasedOnStamps = new OptionKey<>(true);
 
+    @Option(help = "", type=OptionType.Debug)
+    public static final OptionKey<Boolean> EnableFixReadsConditionalElimination = new OptionKey<>(true);
+
     @Option(help = "Uses deoptimization to prune branches of code in the generated code that have never " +
                    "been executed by the interpreter.", type = OptionType.Expert)
     public static final OptionKey<Boolean> RemoveNeverExecutedCode = new OptionKey<>(true);

compiler/src/jdk.graal.compiler/src/jdk/graal/compiler/phases/common/FixReadsPhase.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -688,7 +688,7 @@ protected void run(StructuredGraph graph, CoreProviders context) {
             fixReadsClosure.processNodes(block);
         }
 
-        if (GraalOptions.RawConditionalElimination.getValue(graph.getOptions())) {
+        if (GraalOptions.RawConditionalElimination.getValue(graph.getOptions()) && GraalOptions.EnableFixReadsConditionalElimination.getValue(graph.getOptions())) {
             schedule.getCFG().visitDominatorTree(createVisitor(graph, schedule, context), false);
         }
     }