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VerifyError under -Yinline -Yinline-handlers #7589

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scabug opened this Issue Jun 19, 2013 · 4 comments

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scabug commented Jun 19, 2013

object Test {
  object RE extends RuntimeException

  def await0: Unit =
    if (false) {
      if (false) await0
    } else throw RE

  def body = {
    try {
      await0
    } catch {
      case e: Throwable 
        new Some((None getOrElse this).getClass)
        throw e
    }
  }

  def main(args: Array[String]) {
    try { body } catch {
      case RE => // okay
    }
  }
}

{noformat}
JAVA_HOME=$JAVA8_HOME qbin/scala -nc -Yinline -Yinline-handlers test/inliner-bug.scala
java.lang.VerifyError: Bad type on operand stack
Exception Details:
Location:
Main$.body()V @77: invokespecial
Reason:
Type top (current frame, stack[1]) is not assignable to reference type
Current Frame:
bci: @77
flags: { }
locals: { 'Main$', 'java/lang/Throwable', 'Main$$anonfun$body$1', 'scala/None$' }
stack: { top, top, 'java/lang/Class' }
Bytecode:
0000000: 2a3a 07b2 0012 4cbb 0016 59b2 001b bb00
0000010: 1d59 b700 1e4d 4e2d b600 2499 001e a700
0000020: 224c bb00 1659 b200 1bbb 001d 59b7 001e
0000030: 4d4e 2db6 0024 9a00 0a2d b600 28a7 000d
0000040: 2c3a 0519 053a 08b2 002a b600 2eb7 0031
0000050: 572b bf
Exception Handler Table:
bci [0, 7] => handler: 33
Stackmap Table:
same_locals_1_stack_item_frame(@33,Object[#51])
full_frame(@57,{Object[#2],Object[#51],Object[#29],Object[#24]},{Top,Top})
full_frame(@64,{Object[#2],Object[#51],Object[#29],Object[#24]},{Top,Top})
full_frame(@74,{Object[#2],Object[#51],Object[#29],Object[#24]},{Top,Top,Object[#4]})

at Main.main(inliner-bug.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method){noformat}
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scabug commented Jun 19, 2013

Imported From: https://issues.scala-lang.org/browse/SI-7589?orig=1
Reporter: @retronym
Assignee: @JamesIry
Affected Versions: 2.10.0, 2.11.0-M3

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scabug commented Jun 19, 2013

@retronym said:
This is another one distilled from Akka.

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scabug commented Jun 19, 2013

@magarciaEPFL said:
The example works fine with the new optimizer, http://magarciaepfl.github.io/scala/ , at all optimization levels. BTW no equivalent of -Yinline-handlers is supported by the new optimizer. That's on purpose. No performance gain results from -Yinline-handlers .

@scabug scabug added this to the Backlog milestone Apr 7, 2017

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SethTisue commented Mar 2, 2018

seems fixed in 2.12

@SethTisue SethTisue closed this Mar 2, 2018

@SethTisue SethTisue modified the milestones: Backlog, 2.12.0 Mar 2, 2018

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