[
  {
    "config": "opt"
  }, 
  {
    "config": "asan-trace-cmp", 
    "environ": {
      "ASAN_OPTIONS": "detect_leaks=1:color=always", 
      "LSAN_OPTIONS": "suppressions=tools/lsan_suppressions.txt:report_objects=1"
    }
  }, 
  {
    "config": "dbg"
  }, 
  {
    "config": "asan", 
    "environ": {
      "ASAN_OPTIONS": "detect_leaks=1:color=always", 
      "LSAN_OPTIONS": "suppressions=tools/lsan_suppressions.txt:report_objects=1"
    }
  }, 
  {
    "config": "msan", 
    "environ": {
      "MSAN_OPTIONS": "poison_in_dtor=1"
    }
  }, 
  {
    "config": "basicprof"
  }, 
  {
    "config": "helgrind", 
    "tool_prefix": [
      "valgrind", 
      "--tool=helgrind"
    ]
  }, 
  {
    "config": "asan-noleaks", 
    "environ": {
      "ASAN_OPTIONS": "detect_leaks=0:color=always"
    }
  }, 
  {
    "config": "c++-compat"
  }, 
  {
    "config": "ubsan", 
    "environ": {
      "UBSAN_OPTIONS": "halt_on_error=1:print_stacktrace=1:suppressions=tools/ubsan_suppressions.txt"
    }
  }, 
  {
    "config": "tsan", 
    "environ": {
      "TSAN_OPTIONS": "suppressions=tools/tsan_suppressions.txt:halt_on_error=1:second_deadlock_stack=1"
    }
  }, 
  {
    "config": "stapprof"
  }, 
  {
    "config": "gcov"
  }, 
  {
    "config": "memcheck", 
    "tool_prefix": [
      "valgrind", 
      "--tool=memcheck", 
      "--leak-check=full"
    ]
  }, 
  {
    "config": "lto"
  }, 
  {
    "config": "mutrace"
  }, 
  {
    "config": "counters"
  }
]