Github user viirya commented on the issue: https://github.com/apache/spark/pull/19518 The PR looks good. Although it can solve the constant pool pressure, however, I have a question. Does it mean every time a constant falling in short range is used in codes, we increase 1 byte in bytecodes because sipush is followed by two byte value. I'm afraid it may be negative to some cases like many short constants in a java program.
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