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nolongjmp attribute #38

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DavidPH opened this issue Jan 10, 2019 · 2 comments
Open

nolongjmp attribute #38

DavidPH opened this issue Jan 10, 2019 · 2 comments
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enhancement optimization

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@DavidPH
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DavidPH commented Jan 10, 2019

Similar to C++'s noexcept, it would be useful to be able to mark functions are not generating/propagating long jumps so that callers can omit the post-call check. There should also be a way to set this in bulk. Possibly a pragma and/or option.
@AlexAltea
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Just curious, is there any such attribute offered by other C compilers?

@DavidPH
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DavidPH commented Feb 19, 2019

Not as far as I am aware, but there is not the same kind of passive overhead for long jump propagation when targeting normal hardware.

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@DavidPH @AlexAltea