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[Sparc] Remove the support for builtin setjmp/longjmp
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Authored by dcederman on Aug 30 2018, 6:21 AM.

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Summary

It is currently broken and for Sparc there is not much benefit in using a builtin version compared to a library version. Both versions needs to store the same 4 values in setjmp and flush the register windows in longjmp. If the need for a builtin setjmp/longjmp arises there is an improved implementation available at https://reviews.llvm.org/D50969.

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rL LLVM