//===----------------------------------------------------------------------===//
#include "llvm/Analysis/LoopPass.h"
+#include "llvm/DebugInfoProbe.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Timer.h"
using namespace llvm;
+namespace {
+
+/// PrintLoopPass - Print a Function corresponding to a Loop.
+///
+class PrintLoopPass : public LoopPass {
+private:
+ std::string Banner;
+ raw_ostream &Out; // raw_ostream to print on.
+
+public:
+ static char ID;
+ PrintLoopPass(const std::string &B, raw_ostream &o)
+ : LoopPass(ID), Banner(B), Out(o) {}
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+ }
+
+ bool runOnLoop(Loop *L, LPPassManager &) {
+ Out << Banner;
+ for (Loop::block_iterator b = L->block_begin(), be = L->block_end();
+ b != be;
+ ++b) {
+ (*b)->print(Out);
+ }
+ return false;
+ }
+};
+
+char PrintLoopPass::ID = 0;
+}
+
+//===----------------------------------------------------------------------===//
+// DebugInfoProbe
+
+static DebugInfoProbeInfo *TheDebugProbe;
+static void createDebugInfoProbe() {
+ if (TheDebugProbe) return;
+
+ // Constructed the first time this is called. This guarantees that the
+ // object will be constructed, if -enable-debug-info-probe is set,
+ // before static globals, thus it will be destroyed before them.
+ static ManagedStatic<DebugInfoProbeInfo> DIP;
+ TheDebugProbe = &*DIP;
+}
+
//===----------------------------------------------------------------------===//
// LPPassManager
//
char LPPassManager::ID = 0;
LPPassManager::LPPassManager(int Depth)
- : FunctionPass(&ID), PMDataManager(Depth) {
+ : FunctionPass(ID), PMDataManager(Depth) {
skipThisLoop = false;
redoThisLoop = false;
LI = NULL;
void LPPassManager::cloneBasicBlockSimpleAnalysis(BasicBlock *From,
BasicBlock *To, Loop *L) {
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
- LoopPass *LP = (LoopPass *)getContainedPass(Index);
+ LoopPass *LP = getContainedPass(Index);
LP->cloneBasicBlockAnalysis(From, To, L);
}
}
}
}
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
- LoopPass *LP = (LoopPass *)getContainedPass(Index);
+ LoopPass *LP = getContainedPass(Index);
LP->deleteAnalysisValue(V, L);
}
}
bool LPPassManager::runOnFunction(Function &F) {
LI = &getAnalysis<LoopInfo>();
bool Changed = false;
+ createDebugInfoProbe();
// Collect inherited analysis from Module level pass manager.
populateInheritedAnalysis(TPM->activeStack);
I != E; ++I) {
Loop *L = *I;
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
- LoopPass *P = (LoopPass*)getContainedPass(Index);
+ LoopPass *P = getContainedPass(Index);
Changed |= P->doInitialization(L, *this);
}
}
// Run all passes on the current Loop.
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
- LoopPass *P = (LoopPass*)getContainedPass(Index);
-
+ LoopPass *P = getContainedPass(Index);
dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG,
CurrentLoop->getHeader()->getName());
dumpRequiredSet(P);
initializeAnalysisImpl(P);
-
+ if (TheDebugProbe)
+ TheDebugProbe->initialize(P, F);
{
PassManagerPrettyStackEntry X(P, *CurrentLoop->getHeader());
TimeRegion PassTimer(getPassTimer(P));
Changed |= P->runOnLoop(CurrentLoop, *this);
}
+ if (TheDebugProbe)
+ TheDebugProbe->finalize(P, F);
if (Changed)
dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG,
// Finalization
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
- LoopPass *P = (LoopPass *)getContainedPass(Index);
+ LoopPass *P = getContainedPass(Index);
Changed |= P->doFinalization();
}
//===----------------------------------------------------------------------===//
// LoopPass
+Pass *LoopPass::createPrinterPass(raw_ostream &O,
+ const std::string &Banner) const {
+ return new PrintLoopPass(Banner, O);
+}
+
// Check if this pass is suitable for the current LPPassManager, if
// available. This pass P is not suitable for a LPPassManager if P
// is not preserving higher level analysis info used by other