Changes in directory llvm/include/llvm/ADT:
Statistic.h updated: 1.19 -> 1.20
---
Log message:
Change the implementation of statistic to not need destructors at all.
Instead, the stat info is printed when llvm_shutdown() is called.
These also don't need static ctors, but getting rid of them is uglier:
still investigating. This reduces the number of static dtors in llvm from
~1400 to ~750.
---
Diffs of the changes: (+24 -17)
Statistic.h | 41 ++++++++++++++++++++++++-----------------
1 files changed, 24 insertions(+), 17 deletions(-)
Index: llvm/include/llvm/ADT/Statistic.h
diff -u llvm/include/llvm/ADT/Statistic.h:1.19
llvm/include/llvm/ADT/Statistic.h:1.20
--- llvm/include/llvm/ADT/Statistic.h:1.19 Wed Dec 6 12:20:44 2006
+++ llvm/include/llvm/ADT/Statistic.h Fri Dec 8 14:00:42 2006
@@ -31,29 +31,36 @@
class Statistic {
const char *Name;
const char *Desc;
- unsigned Value;
- static unsigned NumStats;
+ unsigned Value : 31;
+ bool Initialized : 1;
public:
// Normal constructor, default initialize data item...
Statistic(const char *name, const char *desc)
- : Name(name), Desc(desc), Value(0) {
- ++NumStats; // Keep track of how many stats are created...
+ : Name(name), Desc(desc), Value(0), Initialized(0) {
}
- // Print information when destroyed, iff command line option is specified
- ~Statistic();
-
- // Allow use of this class as the value itself...
+ unsigned getValue() const { return Value; }
+ const char *getName() const { return Name; }
+ const char *getDesc() const { return Desc; }
+
+ // Allow use of this class as the value itself.
operator unsigned() const { return Value; }
- const Statistic &operator=(unsigned Val) { Value = Val; return *this; }
- const Statistic &operator++() { ++Value; return *this; }
- unsigned operator++(int) { return Value++; }
- const Statistic &operator--() { --Value; return *this; }
- unsigned operator--(int) { return Value--; }
- const Statistic &operator+=(const unsigned &V) { Value += V; return *this; }
- const Statistic &operator-=(const unsigned &V) { Value -= V; return *this; }
- const Statistic &operator*=(const unsigned &V) { Value *= V; return *this; }
- const Statistic &operator/=(const unsigned &V) { Value /= V; return *this; }
+ const Statistic &operator=(unsigned Val) { Value = Val; return init(); }
+ const Statistic &operator++() { ++Value; return init(); }
+ unsigned operator++(int) { init(); return Value++; }
+ const Statistic &operator--() { --Value; return init(); }
+ unsigned operator--(int) { init(); return Value--; }
+ const Statistic &operator+=(const unsigned &V) { Value += V; return init(); }
+ const Statistic &operator-=(const unsigned &V) { Value -= V; return init(); }
+ const Statistic &operator*=(const unsigned &V) { Value *= V; return init(); }
+ const Statistic &operator/=(const unsigned &V) { Value /= V; return init(); }
+
+private:
+ Statistic &init() {
+ if (!Initialized) RegisterStatistic();
+ return *this;
+ }
+ void RegisterStatistic();
};
} // End llvm namespace
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