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jmorse2

HN member
Joined
Wed, Jan 22, 2020, 12:41 PM UTC
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21
Public activity
14 items

About jmorse2

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Recent public activity

  1. comment
    Comment #34524416

    As there's something about branch prediction on the front page right now, "The slow winter" [0] is well worth a read too because a) We should remember the magma people are waiting …

  2. comment
    Comment #33171285

    > I'm referring to all the cases where the compiler obviously should know where the value is, yet the debugger somehow doesn't. Soooommmee of this can be explained by the design de…

  3. comment
    Comment #33171001

    > I haven't looked at DWARF for ages. Can it describe the situation that a variable is valid (in some register) in the beginning of a function, but then goes "out of scope " in the…

  4. comment
    Comment #33170538

    Assuming you're referring to the articles first example, I suspect optimised-out is the correct outcome in that situation. The program is stopped at the start of one function, and …

  5. comment
    Comment #32983529

    > they aren't (again, AFAIK) doing anything about it Person slightly doing things to LLVM checking in -- the three points you list are compelling, because it's always going to be d…

  6. comment
    Comment #32674824

    Possibly closer to the mark in terms of scripture is Ezekiel 38, which specifies that the Jews are to have returned/gathered from exile/dispersion and be living in peace ("unwalled…

  7. comment
    Comment #31736409

    I've got a copy and still use it sometimes -- being able to immediately see nearby words (like "glad", "gladly", "gladness") is quite useful, which you'd miss just searching for "g…

  8. comment
    Comment #30880677

    (NB: the developers guide says to ping if there's no activity for a week)

  9. comment
    Comment #26008211

    To reinforce this, one of the statistics that the beeb have wheeled out is that in the most vulnerable group being vaccinated (in the UK), aged 80+, one in ten of them will die reg…

  10. comment
    Comment #25542865

    > I'd like to learn more about this. Maybe contribute to the compiler and fix this issue. You need to create a call to the `llvm.dbg.declare` intrinsic that connects the stack vari…

  11. comment
    Comment #25287286

    Thanks for finding all those bugs! I see the BI / SI / LI invariances you define are looking for program states that aren't present in the unoptimised program, while PI is looking …

  12. comment
    Comment #24758467

    It's DWARF-5 only: variable values can be expressed in terms of a parameters value on entry to the function. Depending on the circumstances, that value can be recovered from furthe…

  13. comment
    Comment #22117148

    Biblical sources describe tin as being sourced from Tarshish [0], a remote island that traded with the Phoenician naval merchants in Tyre. Plus as wtracz' sibling comment indicates…

  14. comment
    Comment #22117058

    On the other hand, Herodotus describes islands off the north/west of Europe "from which we are said to have our tin" [0]. [0] https://en.wikipedia.org/wiki/Cassiterides