[all-commits] [llvm/llvm-project] 8cf1ac: [llvm-cov gcov] Improve accuracy when some edges a...

[Fangrui Song via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8cf1ac97cec654923b4f80ad11506bf06ec34f65
      https://github.com/llvm/llvm-project/commit/8cf1ac97cec654923b4f80ad11506bf06ec34f65
  Author: Fangrui Song <i at maskray.me>
  Date:   2020-09-12 (Sat, 12 Sep 2020)

  Changed paths:
    M compiler-rt/test/profile/gcov-basic.c
    M llvm/include/llvm/ProfileData/GCOV.h
    M llvm/lib/ProfileData/GCOV.cpp
    M llvm/test/tools/llvm-cov/gcov-8.c

  Log Message:
  -----------
  [llvm-cov gcov] Improve accuracy when some edges are not measured

Also guard against infinite recursion if GCOV_ARC_ON_TREE edges contain a cycle.