src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.amd64/src/org/graalvm/compiler/replacements/amd64/AMD64StringSubstitutions.java

@@ -80,11 +80,10 @@
         int totalOffset = sourceOffset + fromIndex;
         if (sourceCount - fromIndex < targetCount) {
             // The empty string contains nothing except the empty string.
             return -1;
         }
-        assert sourceCount - fromIndex > 0 && targetCount > 0;
 
         if (targetCount == 1) {
             Pointer sourcePointer = Word.objectToTrackedPointer(source).add(charArrayBaseOffset(INJECTED)).add(totalOffset * charArrayIndexScale(INJECTED));
             int indexOfResult = AMD64ArrayIndexOf.indexOf1Char(sourcePointer, sourceCount - fromIndex, target[targetOffset]);
             if (indexOfResult >= 0) {