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Michael D. Adams authored
The parser/flattener will generate an extra block after an if/else statement even if both branches exit the function. So it is possible for the input to the CPS pass to have dead/unreachable blocks. If a dead block goes to a live block then the live block would have more parents than the dead block and prior to this patch the live block would then be identified as a proc point. This is fixed by adding a check to see if the parent has at least one owner.
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