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Give the -time-passes tool option a global storage location so that its

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value can be discovered by the various LLVM tools.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16032 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-08-24 17:52:35 +00:00
parent d0d0a1a08f
commit 1f079267dc
2 changed files with 9 additions and 3 deletions
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5
include/llvm/Pass.h
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@ -332,6 +332,11 @@ private:
virtual void addToPassManager(PassManagerT<BasicBlock> *PM,AnalysisUsage &AU); virtual void addToPassManager(PassManagerT<BasicBlock> *PM,AnalysisUsage &AU);
}; };
/// If the user specifies the -time-passes argument on an LLVM tool command line
/// then the value of this boolean will be true, otherwise false.
/// @brief This is the storage for the -time-passes option.
extern bool TimePassesIsEnabled;
} // End llvm namespace } // End llvm namespace
// Include support files that contain important APIs commonly used by Passes, // Include support files that contain important APIs commonly used by Passes,

7
lib/VMCore/Pass.cpp
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@ -110,15 +110,16 @@ bool FunctionPassManager::run(Function &F) {
// amount of time each pass takes to execute. This only happens with // amount of time each pass takes to execute. This only happens with
// -time-passes is enabled on the command line. // -time-passes is enabled on the command line.
// //
static cl::opt<bool> bool llvm::TimePassesIsEnabled = false;
EnableTiming("time-passes", static cl::opt<bool,true>
EnableTiming("time-passes", cl::location(TimePassesIsEnabled),
cl::desc("Time each pass, printing elapsed time for each on exit")); cl::desc("Time each pass, printing elapsed time for each on exit"));
// createTheTimeInfo - This method either initializes the TheTimeInfo pointer to // createTheTimeInfo - This method either initializes the TheTimeInfo pointer to
// a non null value (if the -time-passes option is enabled) or it leaves it // a non null value (if the -time-passes option is enabled) or it leaves it
// null. It may be called multiple times. // null. It may be called multiple times.
void TimingInfo::createTheTimeInfo() { void TimingInfo::createTheTimeInfo() {
if (!EnableTiming || TheTimeInfo) return; if (!TimePassesIsEnabled || TheTimeInfo) return;
// Constructed the first time this is called, iff -time-passes is enabled. // Constructed the first time this is called, iff -time-passes is enabled.
// This guarantees that the object will be constructed before static globals, // This guarantees that the object will be constructed before static globals,