diff options
Diffstat (limited to 'include/llvm')
| -rw-r--r-- | include/llvm/ADT/Statistic.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/llvm/ADT/Statistic.h b/include/llvm/ADT/Statistic.h index 5c46486..453af34 100644 --- a/include/llvm/ADT/Statistic.h +++ b/include/llvm/ADT/Statistic.h @@ -19,6 +19,27 @@ #include <iosfwd> +// DebugFlag - This boolean is set to true if the '-debug' command line option +// is specified. This should probably not be referenced directly, instead, use +// the DEBUG macro below. +// +extern bool DebugFlag; + +// DEBUG macro - This macro should be used by passes to emit debug information. +// In the '-debug' option is specified on the commandline, and if this is a +// debug build, then the code specified as the option to the macro will be +// executed. Otherwise it will not be. Example: +// +// DEBUG(cerr << "Bitset contains: " << Bitset << "\n"); +// +#ifdef NDEBUG +#define DEBUG(X) +#else +#define DEBUG(X) \ + do { if (DebugFlag) { X; } } while (0) +#endif + + // StatisticBase - Nontemplated base class for Statistic<> class... class StatisticBase { const char *Name; |