Nikita Popov 82bd64fff6 [AA] byval argument is identified function local ...

byval arguments should mostly get the same treatment as noalias
arguments in alias analysis. This was not the case for the
isIdentifiedFunctionLocal() function.

Marking byval arguments as identified function local means that
they cannot alias with other arguments, which I believe is correct.

Differential Revision: https://reviews.llvm.org/D93602

2020-12-21 20:18:23 +01:00

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