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Commit ecc4b9e7 authored by Bill Nell's avatar Bill Nell Committed by Maksim Panchenko
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BOLT: Add ud2 after indirect tailcalls. 

Summary:
Insert ud2 instructions after indirect tailcalls to prevent the CPU from
decoding instructions following the callsite.

A simple counter in the peephole pass shows 3260 tail call traps inserted.

(cherry picked from FBD3859737)
parent 2f1341b5
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