llvm/llvm/test/Transforms/SampleProfile/Inputs/cov-zero-samples.prof

main:20111403:0
 2.1: 404065
 3: 443089
 3.1: 0
 4: 404066
 6: 0
 7: 0
 3.1: _Z12never_calledi:0
  0: 0
  1: 0