//
// This file defines the MachineLoopInfo class that is used to identify natural
// loops and determine the loop depth of various nodes of the CFG. Note that
-// the loops identified may actually be several natural loops that share the
+// the loops identified may actually be several natural loops that share the
// same header node... not just a single natural loop.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineLoopInfo.h"
+#include "llvm/Analysis/LoopInfoImpl.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/Debug.h"
using namespace llvm;
-namespace llvm {
-#define MLB class LoopBase<MachineBasicBlock, MachineLoop>
-TEMPLATE_INSTANTIATION(MLB);
-#undef MLB
-#define MLIB class LoopInfoBase<MachineBasicBlock, MachineLoop>
-TEMPLATE_INSTANTIATION(MLIB);
-#undef MLIB
-}
+// Explicitly instantiate methods in LoopInfoImpl.h for MI-level Loops.
+template class llvm::LoopBase<MachineBasicBlock, MachineLoop>;
+template class llvm::LoopInfoBase<MachineBasicBlock, MachineLoop>;
char MachineLoopInfo::ID = 0;
-INITIALIZE_PASS(MachineLoopInfo, "machine-loops",
+INITIALIZE_PASS_BEGIN(MachineLoopInfo, "machine-loops",
+ "Machine Natural Loop Construction", true, true)
+INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
+INITIALIZE_PASS_END(MachineLoopInfo, "machine-loops",
"Machine Natural Loop Construction", true, true)
char &llvm::MachineLoopInfoID = MachineLoopInfo::ID;
bool MachineLoopInfo::runOnMachineFunction(MachineFunction &) {
releaseMemory();
- LI.Calculate(getAnalysis<MachineDominatorTree>().getBase()); // Update
+ LI.Analyze(getAnalysis<MachineDominatorTree>().getBase());
return false;
}
return BotMBB;
}
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void MachineLoop::dump() const {
print(dbgs());
}
+#endif