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1052885
2016 Feb 09
2
Adding support for self-modifying branches to LLVM?
Hi,
I'm coming back to this old thread with data about the performance of NOPs.
Recalling that I was considering transforming NOP instructions into
branches and back, in order to dynamically enable code. One use case for
this was enabling/disabling individual sanitizer checks (ASan, UBSan) on
demand.
I wrote a pass which takes an ASan-instrumented program, and replaces each
ASan check with