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[Hexagon] Implement noreturn optimization
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Authored by bcahoon on Nov 7 2018, 7:54 AM.

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Summary

Eliminate the stack in functions with the noreturn nounwind attributes, and the noreturn-stack-elim target feature is enabled. This reduces the code size and stack space needed for noreturn functions.

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Repository
rL LLVM

Event Timeline

bcahoon created this revision.Nov 7 2018, 7:54 AM
sgundapa accepted this revision.Nov 7 2018, 8:25 AM
This revision is now accepted and ready to land.Nov 7 2018, 8:25 AM
This revision was automatically updated to reflect the committed changes.