[all-commits] [llvm/llvm-project] fb19aa: [CSSPGO][llvm-profgen] Fix an issue in findDisjoin...

[Hongtao Yu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fb19aa0c74fdb864ddbd677a7b3585661966a098
      https://github.com/llvm/llvm-project/commit/fb19aa0c74fdb864ddbd677a7b3585661966a098
  Author: Hongtao Yu <hoy at fb.com>
  Date:   2021-06-18 (Fri, 18 Jun 2021)

  Changed paths:
    M llvm/tools/llvm-profgen/ProfileGenerator.cpp

  Log Message:
  -----------
  [CSSPGO][llvm-profgen] Fix an issue in findDisjointRanges

We were using 0 as an indicator of invalid offset when computing disjoint ranges. In reality, 0 can be an valid code offset which stands for the first function in .text section. I'm using UINT64_MAX as an invalid code offset instead.

Reviewed By: wenlei

Differential Revision: https://reviews.llvm.org/D104497