InstCombineInternal.h - reduce AliasAnalysis.h include to forward declaration. NFC.

Fix implicit include dependencies in source files and replace legacy AliasAnalysis typedef with AAResults where necessary.

llvm/lib/Transforms/InstCombine/InstCombineInternal.h

@@ -18,7 +18,6 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/Statistic.h"
-#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/TargetFolder.h"
 #include "llvm/Analysis/ValueTracking.h"
@@ -52,6 +51,7 @@ using namespace llvm::PatternMatch;
 
 namespace llvm {
 
+class AAResults;
 class APInt;
 class AssumptionCache;
 class BlockFrequencyInfo;
@@ -316,7 +316,7 @@ private:
   // Mode in which we are running the combiner.
   const bool MinimizeSize;
 
-  AliasAnalysis *AA;
+  AAResults *AA;
 
   // Required analyses.
   AssumptionCache ∾
@@ -336,7 +336,7 @@ private:
 
 public:
   InstCombiner(InstCombineWorklist &Worklist, BuilderTy &Builder,
-               bool MinimizeSize, AliasAnalysis *AA,
+               bool MinimizeSize, AAResults *AA,
                AssumptionCache &AC, TargetLibraryInfo &TLI, DominatorTree &DT,
                OptimizationRemarkEmitter &ORE, BlockFrequencyInfo *BFI,
                ProfileSummaryInfo *PSI, const DataLayout &DL, LoopInfo *LI)

llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp

@@ -14,8 +14,8 @@
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/Loads.h"
-#include "llvm/Transforms/Utils/Local.h"
 #include "llvm/IR/ConstantRange.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/IR/DebugInfoMetadata.h"
@@ -24,6 +24,7 @@
 #include "llvm/IR/MDBuilder.h"
 #include "llvm/IR/PatternMatch.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
+#include "llvm/Transforms/Utils/Local.h"
 using namespace llvm;
 using namespace PatternMatch;
 
@@ -40,7 +41,7 @@ STATISTIC(NumGlobalCopies, "Number of allocas copied from constant global");
 /// the alloca, and if the source pointer is a pointer to a constant global, we
 /// can optimize this.
 static bool
-isOnlyCopiedFromConstantMemory(AliasAnalysis *AA,
+isOnlyCopiedFromConstantMemory(AAResults *AA,
                                Value *V, MemTransferInst *&TheCopy,
                                SmallVectorImpl<Instruction *> &ToDelete) {
   // We track lifetime intrinsics as we encounter them.  If we decide to go
@@ -144,7 +145,7 @@ isOnlyCopiedFromConstantMemory(AliasAnalysis *AA,
 /// modified by a copy from a constant global.  If we can prove this, we can
 /// replace any uses of the alloca with uses of the global directly.
 static MemTransferInst *
-isOnlyCopiedFromConstantMemory(AliasAnalysis *AA,
+isOnlyCopiedFromConstantMemory(AAResults *AA,
                                AllocaInst *AI,
                                SmallVectorImpl<Instruction *> &ToDelete) {
   MemTransferInst *TheCopy = nullptr;