[PATCH] D79961: [PGO] Fix computation of fuction Hash

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added a comment.

This patch is correct. A clarification of the description:

> Previous implementation was incorrectly passing an integer, that got converted to a pointer, to finalize the hash computation.

Working (an `uint64_t`) was truncated to an `uint8_t`, converted to a one-element `ArrayRef<uint8_t>`, then passed to `MD5.update`


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D79961/new/

https://reviews.llvm.org/D79961