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On Wed, Oct 2, 2019 at 8:41 PM Maksim Panchenko via llvm-dev < llvm-dev at lists.llvm.org> wrote: > *Pessimization/overhead for stack unwinding used by system-wide profilers > and > for exception handling* > > Larger CFI programs put an extra burden on unwinding at runtime as more CFI > (and thus native) instructions have to be executed. This will cause more > overhead

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