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::scaleNumbering(int factor) {
- // Scale the intervals.
- for (iterator LI = begin(), LE = end(); LI != LE; ++LI) {
- LI->second.scaleNumbering(factor);
- }
-}
+char &llvm::LiveStacksID = LiveStacks::ID;
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();
S2RCMap.clear();