am 876d6995: Merge "Update aosp/master LLVM for rebase to r222494."

* commit '876d6995443e99d13696f3941c3a789a4daa7c7a':
  Update aosp/master LLVM for rebase to r222494.

1 files changed, 21 insertions, 5 deletions

diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index c0c6906..e89e5e5 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -34,12 +34,14 @@ class Value;
 class Pass;
 class PHINode;
 class AllocaInst;
+class AssumptionTracker;
 class ConstantExpr;
 class DataLayout;
 class TargetLibraryInfo;
 class TargetTransformInfo;
 class DIBuilder;
 class AliasAnalysis;
+class DominatorTree;
 
 template<typename T> class SmallVectorImpl;
 
@@ -136,7 +138,9 @@ bool EliminateDuplicatePHINodes(BasicBlock *BB);
 /// the basic block that was pointed to.
 ///
 bool SimplifyCFG(BasicBlock *BB, const TargetTransformInfo &TTI,
-                 const DataLayout *TD = nullptr);
+                 unsigned BonusInstThreshold,
+                 const DataLayout *TD = nullptr,
+                 AssumptionTracker *AT = nullptr);
 
 /// FlatternCFG - This function is used to flatten a CFG.  For
 /// example, it uses parallel-and and parallel-or mode to collapse
@@ -148,7 +152,8 @@ bool FlattenCFG(BasicBlock *BB, AliasAnalysis *AA = nullptr);
 /// and if a predecessor branches to us and one of our successors, fold the
 /// setcc into the predecessor and use logical operations to pick the right
 /// destination.
-bool FoldBranchToCommonDest(BranchInst *BI, const DataLayout *DL = nullptr);
+bool FoldBranchToCommonDest(BranchInst *BI, const DataLayout *DL = nullptr,
+                            unsigned BonusInstThreshold = 1);
 
 /// DemoteRegToStack - This function takes a virtual register computed by an
 /// Instruction and replaces it with a slot in the stack frame, allocated via
@@ -170,12 +175,18 @@ AllocaInst *DemotePHIToStack(PHINode *P, Instruction *AllocaPoint = nullptr);
 /// and it is more than the alignment of the ultimate object, see if we can
 /// increase the alignment of the ultimate object, making this check succeed.
 unsigned getOrEnforceKnownAlignment(Value *V, unsigned PrefAlign,
-                                    const DataLayout *TD = nullptr);
+                                    const DataLayout *TD = nullptr,
+                                    AssumptionTracker *AT = nullptr,
+                                    const Instruction *CxtI = nullptr,
+                                    const DominatorTree *DT = nullptr);
 
 /// getKnownAlignment - Try to infer an alignment for the specified pointer.
 static inline unsigned getKnownAlignment(Value *V,
-                                         const DataLayout *TD = nullptr) {
-  return getOrEnforceKnownAlignment(V, 0, TD);
+                                         const DataLayout *TD = nullptr,
+                                         AssumptionTracker *AT = nullptr,
+                                         const Instruction *CxtI = nullptr,
+                                         const DominatorTree *DT = nullptr) {
+  return getOrEnforceKnownAlignment(V, 0, TD, AT, CxtI, DT);
 }
 
 /// EmitGEPOffset - Given a getelementptr instruction/constantexpr, emit the
@@ -275,6 +286,11 @@ bool replaceDbgDeclareForAlloca(AllocaInst *AI, Value *NewAllocaAddress,
 /// Returns true if any basic block was removed.
 bool removeUnreachableBlocks(Function &F);
 
+/// \brief Combine the metadata of two instructions so that K can replace J
+///
+/// Metadata not listed as known via KnownIDs is removed
+void combineMetadata(Instruction *K, const Instruction *J, ArrayRef<unsigned> KnownIDs);
+
 } // End llvm namespace
 
 #endif