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Move debugging support out of Statistic.h into Debug.h, implement the new DEBUG_TYPE facilities

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llvm-svn: 7490
This commit is contained in:
Chris Lattner 2003-08-01 22:12:40 +00:00
parent b3eb22c644
commit 1dd4e725c7
2 changed files with 53 additions and 21 deletions
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53
include/Support/Debug.h Normal file
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@ -0,0 +1,53 @@
//===- Debug.h - An easy way to add debug output to your code ---*- C++ -*-===//
//
// This file implements a handle way of adding debugging information to your
// code, without it being enabled all of the time, and without having to add
// command line options to enable it.
//
// In particular, just wrap your code with the DEBUG() macro, and it will be
// enabled automatically if you specify '-debug' on the command-line.
// Alternatively, you can also use the SET_DEBUG_TYPE("foo") macro to specify
// that your debug code belongs to class "foo". Then, on the command line, you
// can specify '-debug-only=foo' to enable JUST the debug information for the
// foo class.
//
// When compiling in release mode, the -debug-* options and all code in DEBUG()
// statements disappears, so it does not effect the runtime of the code.
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_DEBUG_H
#define SUPPORT_DEBUG_H
// 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;
// isCurrentDebugType - Return true if the specified string is the debug type
// specified on the command line, or if none was specified on the command line
// with the -debug-only=X option.
//
bool isCurrentDebugType(const char *Type);
// 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");
//
#ifndef DEBUG_TYPE
#define DEBUG_TYPE ""
#endif
#ifdef NDEBUG
#define DEBUG(X)
#else
#define DEBUG(X) \
do { if (DebugFlag && isCurrentDebugType(DEBUG_TYPE)) { X; } } while (0)
#endif
#endif

21
include/Support/Statistic.h
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@ -19,27 +19,6 @@
#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;