#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/CFG.h"
+#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/Loads.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/MemoryDependenceAnalysis.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/SSAUpdater.h"
#include <vector>
+
using namespace llvm;
#define DEBUG_TYPE "mldst-motion"
// This transformation requires dominator postdominator info
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.addRequired<TargetLibraryInfoWrapperPass>();
- AU.addRequired<AliasAnalysis>();
+ AU.addRequired<AAResultsWrapperPass>();
+ AU.addPreserved<GlobalsAAWrapperPass>();
AU.addPreserved<MemoryDependenceAnalysis>();
- AU.addPreserved<AliasAnalysis>();
}
// Helper routines
"MergedLoadStoreMotion", false, false)
INITIALIZE_PASS_DEPENDENCY(MemoryDependenceAnalysis)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
-INITIALIZE_AG_DEPENDENCY(AliasAnalysis)
+INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
+INITIALIZE_PASS_DEPENDENCY(GlobalsAAWrapperPass)
INITIALIZE_PASS_END(MergedLoadStoreMotion, "mldst-motion",
"MergedLoadStoreMotion", false, false)
/// being loaded or protect against the load from happening
/// it is considered a hoist barrier.
///
-
bool MergedLoadStoreMotion::isLoadHoistBarrierInRange(const Instruction& Start,
const Instruction& End,
LoadInst* LI) {
// Intersect optional metadata.
HoistCand->intersectOptionalDataWith(ElseInst);
- HoistCand->dropUnknownMetadata();
+ HoistCand->dropUnknownNonDebugMetadata();
// Prepend point for instruction insert
Instruction *HoistPt = BB->getTerminator();
/// value being stored or protect against the store from
/// happening it is considered a sink barrier.
///
-
bool MergedLoadStoreMotion::isStoreSinkBarrierInRange(const Instruction &Start,
const Instruction &End,
MemoryLocation Loc) {
PHINode *MergedLoadStoreMotion::getPHIOperand(BasicBlock *BB, StoreInst *S0,
StoreInst *S1) {
// Create a phi if the values mismatch.
- PHINode *NewPN = 0;
+ PHINode *NewPN = nullptr;
Value *Opd1 = S0->getValueOperand();
Value *Opd2 = S1->getValueOperand();
if (Opd1 != Opd2) {
BasicBlock::iterator InsertPt = BB->getFirstInsertionPt();
// Intersect optional metadata.
S0->intersectOptionalDataWith(S1);
- S0->dropUnknownMetadata();
+ S0->dropUnknownNonDebugMetadata();
// Create the new store to be inserted at the join point.
StoreInst *SNew = (StoreInst *)(S0->clone());
}
return MergedStores;
}
+
///
/// \brief Run the transformation for each function
///
bool MergedLoadStoreMotion::runOnFunction(Function &F) {
MD = getAnalysisIfAvailable<MemoryDependenceAnalysis>();
- AA = &getAnalysis<AliasAnalysis>();
+ AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
bool Changed = false;
DEBUG(dbgs() << "Instruction Merger\n");