Partially mitigate LLVM's infinite loops bug #2592
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The LLVM optimiser in its current state treats infinite loops as provoking undefined behaviour, which can lead to very undesirable effects in Pony programs (for example, an incorrect behaviour being called on a message receive.) This change should completely fix the example described above, and fix some other less catastrophic manifestations of this bug. There are ongoing efforts to fix these bugs on LLVM's side. Once they are completely fixed, this workaround can be removed.
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@Praetonus - is there an open LLVM ticket you can link here to track their ongoing effort to fix the problem? |
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The LLVM optimiser in its current state treats infinite loops as provoking undefined behaviour, which can lead to very undesirable effects in Pony programs (for example, an incorrect behaviour being called on a message receive.) This change should completely fix the example described above, and fix some other less catastrophic manifestations of this bug. There are ongoing efforts to fix these bugs on LLVM's side. Once they are completely fixed, this workaround can be removed.
dipinhora
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Jun 5, 2018
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The LLVM optimiser in its current state treats infinite loops as provoking undefined behaviour, which can lead to very undesirable effects in Pony programs (for example, an incorrect behaviour being called on a message receive.)
This change should completely fix the example described above, and fix some other less catastrophic manifestations of this bug.
There are ongoing efforts to fix these bugs on LLVM's side. Once they are completely fixed, this workaround can be removed.