[llvm-dev] Efficient Green Thread Context-Switching

Joshua Thomas Wise via llvm-dev llvm-dev at lists.llvm.org
Fri Mar 27 13:48:04 PDT 2020

The first time you said “setjmp/longjmp intrinsics” I thought it was a typo, and that you were talking about the C standard library functions. If you’re actually talking about LLVM intrinsics, are they documented? I don’t see any intrinsics with those names in the language reference (https://llvm.org/docs/LangRef.html <https://llvm.org/docs/LangRef.html>).

> On Mar 27, 2020, at 3:30 PM, Joerg Sonnenberger via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> On Fri, Mar 27, 2020 at 02:58:03PM -0500, Joshua Thomas Wise wrote:
>> Sorry, I certainly didn't mean to be dishonest. I was just repeating
>> one of the comparisons given by the research paper. Regardless, even
>> setjmp() uses a structure of 148 bytes in size (on my machine).
> Let me repeat. Please take a look at the setjmp/longjmp intrinsics. On
> support architectures they boil down to at most 5 pointers.
> Joerg
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