#define DEBUG_TYPE "livestacks"
#include "llvm/CodeGen/LiveStackAnalysis.h"
+#include "llvm/CodeGen/LiveIntervalAnalysis.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/Statistic.h"
+#include <limits>
using namespace llvm;
char LiveStacks::ID = 0;
-static RegisterPass<LiveStacks> X("livestacks", "Live Stack Slot Analysis");
+INITIALIZE_PASS(LiveStacks, "livestacks",
+ "Live Stack Slot Analysis", false, false);
void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
+ AU.addPreserved<SlotIndexes>();
+ AU.addRequiredTransitive<SlotIndexes>();
MachineFunctionPass::getAnalysisUsage(AU);
}
void LiveStacks::releaseMemory() {
- // Release VNInfo memroy regions after all VNInfo objects are dtor'd.
+ // Release VNInfo memory regions, VNInfo objects don't need to be dtor'd.
VNInfoAllocator.Reset();
- s2iMap.clear();
+ S2IMap.clear();
+ S2RCMap.clear();
}
bool LiveStacks::runOnMachineFunction(MachineFunction &) {
}
/// print - Implement the dump method.
-void LiveStacks::print(std::ostream &O, const Module* ) const {
- O << "********** INTERVALS **********\n";
+void LiveStacks::print(raw_ostream &OS, const Module*) const {
+
+ OS << "********** INTERVALS **********\n";
for (const_iterator I = begin(), E = end(); I != E; ++I) {
- I->second.print(O);
- O << "\n";
+ I->second.print(OS);
+ int Slot = I->first;
+ const TargetRegisterClass *RC = getIntervalRegClass(Slot);
+ if (RC)
+ OS << " [" << RC->getName() << "]\n";
+ else
+ OS << " [Unknown]\n";
}
}