[llvm] r354245 - Revert r354244 "[DAGCombiner] Eliminate dead stores to stack."

Clement Courbet via llvm-commits llvm-commits at lists.llvm.org
Mon Feb 18 00:24:29 PST 2019


Author: courbet
Date: Mon Feb 18 00:24:29 2019
New Revision: 354245

URL: http://llvm.org/viewvc/llvm-project?rev=354245&view=rev
Log:
Revert r354244 "[DAGCombiner] Eliminate dead stores to stack."

Breaks some bots.

Modified:
    llvm/trunk/include/llvm/CodeGen/SelectionDAG.h
    llvm/trunk/include/llvm/CodeGen/SelectionDAGAddressAnalysis.h
    llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h
    llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
    llvm/trunk/test/CodeGen/BPF/remove_truncate_5.ll
    llvm/trunk/test/CodeGen/X86/swap.ll
    llvm/trunk/test/DebugInfo/COFF/inlining.ll
    llvm/trunk/test/DebugInfo/COFF/lexicalblock.ll

Modified: llvm/trunk/include/llvm/CodeGen/SelectionDAG.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/SelectionDAG.h?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/SelectionDAG.h (original)
+++ llvm/trunk/include/llvm/CodeGen/SelectionDAG.h Mon Feb 18 00:24:29 2019
@@ -1016,12 +1016,6 @@ public:
                               ArrayRef<SDValue> Ops, EVT MemVT,
                               MachineMemOperand *MMO);
 
-  /// Creates a LifetimeSDNode that starts (`IsStart==true`) or ends
-  /// (`IsStart==false`) the lifetime of the portion of `FrameIndex` between
-  /// offsets `Offset` and `Offset + Size`.
-  SDValue getLifetimeNode(bool IsStart, const SDLoc &dl, SDValue Chain,
-                          int FrameIndex, int64_t Size, int64_t Offset = -1);
-
   /// Create a MERGE_VALUES node from the given operands.
   SDValue getMergeValues(ArrayRef<SDValue> Ops, const SDLoc &dl);
 

Modified: llvm/trunk/include/llvm/CodeGen/SelectionDAGAddressAnalysis.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/SelectionDAGAddressAnalysis.h?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/SelectionDAGAddressAnalysis.h (original)
+++ llvm/trunk/include/llvm/CodeGen/SelectionDAGAddressAnalysis.h Mon Feb 18 00:24:29 2019
@@ -48,30 +48,14 @@ public:
   SDValue getIndex() { return Index; }
   SDValue getIndex() const { return Index; }
 
-  // Returns true if `Other` and `*this` are both some offset from the same base
-  // pointer. In that case, `Off` is set to the offset between `*this` and
-  // `Other` (negative if `Other` is before `*this`).
-  bool equalBaseIndex(const BaseIndexOffset &Other, const SelectionDAG &DAG,
-                      int64_t &Off) const;
-
   bool equalBaseIndex(const BaseIndexOffset &Other,
                       const SelectionDAG &DAG) const {
     int64_t Off;
     return equalBaseIndex(Other, DAG, Off);
   }
 
-  // Returns true if `Other` (with size `OtherSize`) can be proven to be fully
-  // contained in `*this` (with size `Size`).
-  bool contains(int64_t Size, const BaseIndexOffset &Other, int64_t OtherSize,
-                const SelectionDAG &DAG) const;
-
-  // Returns true `BasePtr0` and `BasePtr1` can be proven to alias/not alias, in
-  // which case `IsAlias` is set to true/false.
-  static bool computeAliasing(const BaseIndexOffset &BasePtr0,
-                              const int64_t NumBytes0,
-                              const BaseIndexOffset &BasePtr1,
-                              const int64_t NumBytes1, const SelectionDAG &DAG,
-                              bool &IsAlias);
+  bool equalBaseIndex(const BaseIndexOffset &Other, const SelectionDAG &DAG,
+                      int64_t &Off) const;
 
   /// Parses tree in Ptr for base, index, offset addresses.
   static BaseIndexOffset match(const LSBaseSDNode *N, const SelectionDAG &DAG);

Modified: llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h Mon Feb 18 00:24:29 2019
@@ -1692,37 +1692,6 @@ public:
   }
 };
 
-/// This SDNode is used for LIFETIME_START/LIFETIME_END values, which indicate
-/// the offet and size that are started/ended in the underlying FrameIndex.
-class LifetimeSDNode : public SDNode {
-  int64_t Size;
-  int64_t Offset; // -1 if offset is unknown.
-public:
-  LifetimeSDNode(unsigned Opcode, unsigned Order, const DebugLoc &dl,
-                 SDVTList VTs, int64_t Size, int64_t Offset)
-      : SDNode(Opcode, Order, dl, VTs), Size(Size), Offset(Offset) {}
-
-  int64_t getFrameIndex() const {
-    return cast<FrameIndexSDNode>(getOperand(1))->getIndex();
-  }
-
-  bool hasOffset() const { return Offset >= 0; }
-  int64_t getOffset() const {
-    assert(hasOffset() && "offset is unknown");
-    return Offset;
-  }
-  int64_t getSize() const {
-    assert(hasOffset() && "offset is unknown");
-    return Size;
-  }
-
-  // Methods to support isa and dyn_cast
-  static bool classof(const SDNode *N) {
-    return N->getOpcode() == ISD::LIFETIME_START ||
-           N->getOpcode() == ISD::LIFETIME_END;
-  }
-};
-
 class JumpTableSDNode : public SDNode {
   friend class SelectionDAG;
 

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Mon Feb 18 00:24:29 2019
@@ -385,7 +385,6 @@ namespace {
     SDValue replaceStoreOfFPConstant(StoreSDNode *ST);
 
     SDValue visitSTORE(SDNode *N);
-    SDValue visitLIFETIME_END(SDNode *N);
     SDValue visitINSERT_VECTOR_ELT(SDNode *N);
     SDValue visitEXTRACT_VECTOR_ELT(SDNode *N);
     SDValue visitBUILD_VECTOR(SDNode *N);
@@ -1590,7 +1589,6 @@ SDValue DAGCombiner::visit(SDNode *N) {
   case ISD::MLOAD:              return visitMLOAD(N);
   case ISD::MSCATTER:           return visitMSCATTER(N);
   case ISD::MSTORE:             return visitMSTORE(N);
-  case ISD::LIFETIME_END:       return visitLIFETIME_END(N);
   case ISD::FP_TO_FP16:         return visitFP_TO_FP16(N);
   case ISD::FP16_TO_FP:         return visitFP16_TO_FP(N);
   }
@@ -15486,66 +15484,6 @@ SDValue DAGCombiner::visitSTORE(SDNode *
   return ReduceLoadOpStoreWidth(N);
 }
 
-SDValue DAGCombiner::visitLIFETIME_END(SDNode *N) {
-  const auto *LifetimeEnd = cast<LifetimeSDNode>(N);
-  if (!LifetimeEnd->hasOffset())
-    return SDValue();
-
-  const BaseIndexOffset LifetimeEndBase(N->getOperand(1), SDValue(),
-                                        LifetimeEnd->getOffset(), false);
-
-  // We walk up the chains to find stores.
-  SmallVector<SDValue, 8> Chains = {N->getOperand(0)};
-  while (!Chains.empty()) {
-    SDValue Chain = Chains.back();
-    Chains.pop_back();
-    switch (Chain.getOpcode()) {
-    case ISD::TokenFactor:
-      for (unsigned Nops = Chain.getNumOperands(); Nops;)
-        Chains.push_back(Chain.getOperand(--Nops));
-      break;
-    case ISD::LIFETIME_START:
-    case ISD::LIFETIME_END: {
-      // We can forward past any lifetime start/end that can be proven not to
-      // alias the node.
-      const auto *LifetimeStart = cast<LifetimeSDNode>(Chain);
-      if (!LifetimeStart->hasOffset())
-        break; // Be conservative if we don't know the extents of the object.
-
-      const BaseIndexOffset LifetimeStartBase(
-          LifetimeStart->getOperand(1), SDValue(), LifetimeStart->getOffset(),
-          false);
-      bool IsAlias;
-      if (BaseIndexOffset::computeAliasing(
-              LifetimeEndBase, LifetimeEnd->getSize(), LifetimeStartBase,
-              LifetimeStart->getSize(), DAG, IsAlias) &&
-          !IsAlias) {
-        Chains.push_back(Chain.getOperand(0));
-      }
-      break;
-    }
-
-    case ISD::STORE: {
-      StoreSDNode *ST = dyn_cast<StoreSDNode>(Chain);
-      if (ST->isVolatile() || !ST->hasOneUse() || ST->isIndexed())
-        continue;
-      const BaseIndexOffset StoreBase = BaseIndexOffset::match(ST, DAG);
-      // If we store purely within object bounds just before its lifetime ends,
-      // we can remove the store.
-      if (LifetimeEndBase.contains(LifetimeEnd->getSize(), StoreBase,
-                                   ST->getMemoryVT().getStoreSize(), DAG)) {
-        LLVM_DEBUG(dbgs() << "\nRemoving store:"; StoreBase.dump();
-                   dbgs() << "\nwithin LIFETIME_END of : ";
-                   LifetimeEndBase.dump(); dbgs() << "\n");
-        CombineTo(ST, ST->getChain());
-        return SDValue(N, 0);
-      }
-    }
-    }
-  }
-  return SDValue();
-}
-
 /// For the instruction sequence of store below, F and I values
 /// are bundled together as an i64 value before being stored into memory.
 /// Sometimes it is more efficent to generate separate stores for F and I,
@@ -19297,11 +19235,41 @@ bool DAGCombiner::isAlias(LSBaseSDNode *
   unsigned NumBytes1 = Op1->getMemoryVT().getStoreSize();
 
   // Check for BaseIndexOffset matching.
-  bool IsAlias;
-  if (BaseIndexOffset::computeAliasing(
-          BaseIndexOffset::match(Op0, DAG), NumBytes0,
-          BaseIndexOffset::match(Op1, DAG), NumBytes1, DAG, IsAlias))
-    return IsAlias;
+  BaseIndexOffset BasePtr0 = BaseIndexOffset::match(Op0, DAG);
+  BaseIndexOffset BasePtr1 = BaseIndexOffset::match(Op1, DAG);
+  int64_t PtrDiff;
+  if (BasePtr0.getBase().getNode() && BasePtr1.getBase().getNode()) {
+    if (BasePtr0.equalBaseIndex(BasePtr1, DAG, PtrDiff))
+      return !((NumBytes0 <= PtrDiff) || (PtrDiff + NumBytes1 <= 0));
+
+    // If both BasePtr0 and BasePtr1 are FrameIndexes, we will not be
+    // able to calculate their relative offset if at least one arises
+    // from an alloca. However, these allocas cannot overlap and we
+    // can infer there is no alias.
+    if (auto *A = dyn_cast<FrameIndexSDNode>(BasePtr0.getBase()))
+      if (auto *B = dyn_cast<FrameIndexSDNode>(BasePtr1.getBase())) {
+        MachineFrameInfo &MFI = DAG.getMachineFunction().getFrameInfo();
+        // If the base are the same frame index but the we couldn't find a
+        // constant offset, (indices are different) be conservative.
+        if (A != B && (!MFI.isFixedObjectIndex(A->getIndex()) ||
+                       !MFI.isFixedObjectIndex(B->getIndex())))
+          return false;
+      }
+
+    bool IsFI0 = isa<FrameIndexSDNode>(BasePtr0.getBase());
+    bool IsFI1 = isa<FrameIndexSDNode>(BasePtr1.getBase());
+    bool IsGV0 = isa<GlobalAddressSDNode>(BasePtr0.getBase());
+    bool IsGV1 = isa<GlobalAddressSDNode>(BasePtr1.getBase());
+    bool IsCV0 = isa<ConstantPoolSDNode>(BasePtr0.getBase());
+    bool IsCV1 = isa<ConstantPoolSDNode>(BasePtr1.getBase());
+
+    // If of mismatched base types or checkable indices we can check
+    // they do not alias.
+    if ((BasePtr0.getIndex() == BasePtr1.getIndex() || (IsFI0 != IsFI1) ||
+         (IsGV0 != IsGV1) || (IsCV0 != IsCV1)) &&
+        (IsFI0 || IsGV0 || IsCV0) && (IsFI1 || IsGV1 || IsCV1))
+      return false;
+  }
 
   // If we know required SrcValue1 and SrcValue2 have relatively large
   // alignment compared to the size and offset of the access, we may be able
@@ -19360,8 +19328,6 @@ void DAGCombiner::GatherAllAliases(LSBas
 
   // Get alias information for node.
   bool IsLoad = isa<LoadSDNode>(N) && !N->isVolatile();
-  const BaseIndexOffset LSBasePtr = BaseIndexOffset::match(N, DAG);
-  const unsigned LSNumBytes = N->getMemoryVT().getStoreSize();
 
   // Starting off.
   Chains.push_back(OriginalChain);
@@ -19432,27 +19398,6 @@ void DAGCombiner::GatherAllAliases(LSBas
       ++Depth;
       break;
 
-    case ISD::LIFETIME_START:
-    case ISD::LIFETIME_END: {
-      // We can forward past any lifetime start/end that can be proven not to
-      // alias the memory access.
-      const auto *Lifetime = cast<LifetimeSDNode>(Chain);
-      if (!Lifetime->hasOffset())
-        break; // Be conservative if we don't know the extents of the object.
-
-      const BaseIndexOffset LifetimePtr(Lifetime->getOperand(1), SDValue(),
-                                        Lifetime->getOffset(), false);
-      bool IsAlias;
-      if (BaseIndexOffset::computeAliasing(LifetimePtr, Lifetime->getSize(),
-                                           LSBasePtr, LSNumBytes, DAG,
-                                           IsAlias) &&
-          !IsAlias) {
-        Chains.push_back(Chain.getOperand(0));
-        ++Depth;
-      }
-      break;
-    }
-
     default:
       // For all other instructions we will just have to take what we can get.
       Aliases.push_back(Chain);

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Mon Feb 18 00:24:29 2019
@@ -6502,36 +6502,6 @@ SDValue SelectionDAG::getMemIntrinsicNod
   return SDValue(N, 0);
 }
 
-SDValue SelectionDAG::getLifetimeNode(bool IsStart, const SDLoc &dl,
-                                      SDValue Chain, int FrameIndex,
-                                      int64_t Size, int64_t Offset) {
-  const unsigned Opcode = IsStart ? ISD::LIFETIME_START : ISD::LIFETIME_END;
-  const auto VTs = getVTList(MVT::Other);
-  SDValue Ops[2] = {
-      Chain,
-      getFrameIndex(FrameIndex,
-                    getTargetLoweringInfo().getFrameIndexTy(getDataLayout()),
-                    true)};
-
-  FoldingSetNodeID ID;
-  AddNodeIDNode(ID, Opcode, VTs, Ops);
-  ID.AddInteger(FrameIndex);
-  ID.AddInteger(Size);
-  ID.AddInteger(Offset);
-  void *IP = nullptr;
-  if (SDNode *E = FindNodeOrInsertPos(ID, dl, IP))
-    return SDValue(E, 0);
-
-  LifetimeSDNode *N = newSDNode<LifetimeSDNode>(
-      Opcode, dl.getIROrder(), dl.getDebugLoc(), VTs, Size, Offset);
-  createOperands(N, Ops);
-  CSEMap.InsertNode(N, IP);
-  InsertNode(N);
-  SDValue V(N, 0);
-  NewSDValueDbgMsg(V, "Creating new node: ", this);
-  return V;
-}
-
 /// InferPointerInfo - If the specified ptr/offset is a frame index, infer a
 /// MachinePointerInfo record from it.  This is particularly useful because the
 /// code generator has many cases where it doesn't bother passing in a

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp Mon Feb 18 00:24:29 2019
@@ -79,81 +79,6 @@ bool BaseIndexOffset::equalBaseIndex(con
   return false;
 }
 
-bool BaseIndexOffset::computeAliasing(const BaseIndexOffset &BasePtr0,
-                                      const int64_t NumBytes0,
-                                      const BaseIndexOffset &BasePtr1,
-                                      const int64_t NumBytes1,
-                                      const SelectionDAG &DAG, bool &IsAlias) {
-  if (!(BasePtr0.getBase().getNode() && BasePtr1.getBase().getNode()))
-    return false;
-  int64_t PtrDiff;
-  if (BasePtr0.equalBaseIndex(BasePtr1, DAG, PtrDiff)) {
-    // BasePtr1 is PtrDiff away from BasePtr0. They alias if none of the
-    // following situations arise:
-    IsAlias = !(
-        // [----BasePtr0----]
-        //                         [---BasePtr1--]
-        // ========PtrDiff========>
-        (NumBytes0 <= PtrDiff) ||
-        //                     [----BasePtr0----]
-        // [---BasePtr1--]
-        // =====(-PtrDiff)====>
-        (PtrDiff + NumBytes1 <= 0)); // i.e. NumBytes1 < -PtrDiff.
-    return true;
-  }
-  // If both BasePtr0 and BasePtr1 are FrameIndexes, we will not be
-  // able to calculate their relative offset if at least one arises
-  // from an alloca. However, these allocas cannot overlap and we
-  // can infer there is no alias.
-  if (auto *A = dyn_cast<FrameIndexSDNode>(BasePtr0.getBase()))
-    if (auto *B = dyn_cast<FrameIndexSDNode>(BasePtr1.getBase())) {
-      MachineFrameInfo &MFI = DAG.getMachineFunction().getFrameInfo();
-      // If the base are the same frame index but the we couldn't find a
-      // constant offset, (indices are different) be conservative.
-      if (A != B && (!MFI.isFixedObjectIndex(A->getIndex()) ||
-                     !MFI.isFixedObjectIndex(B->getIndex()))) {
-        IsAlias = false;
-        return true;
-      }
-    }
-
-  bool IsFI0 = isa<FrameIndexSDNode>(BasePtr0.getBase());
-  bool IsFI1 = isa<FrameIndexSDNode>(BasePtr1.getBase());
-  bool IsGV0 = isa<GlobalAddressSDNode>(BasePtr0.getBase());
-  bool IsGV1 = isa<GlobalAddressSDNode>(BasePtr1.getBase());
-  bool IsCV0 = isa<ConstantPoolSDNode>(BasePtr0.getBase());
-  bool IsCV1 = isa<ConstantPoolSDNode>(BasePtr1.getBase());
-
-  // If of mismatched base types or checkable indices we can check
-  // they do not alias.
-  if ((BasePtr0.getIndex() == BasePtr1.getIndex() || (IsFI0 != IsFI1) ||
-       (IsGV0 != IsGV1) || (IsCV0 != IsCV1)) &&
-      (IsFI0 || IsGV0 || IsCV0) && (IsFI1 || IsGV1 || IsCV1)) {
-    IsAlias = false;
-    return true;
-  }
-  return false; // Cannot determine whether the pointers alias.
-}
-
-bool BaseIndexOffset::contains(int64_t Size, const BaseIndexOffset &Other,
-                               int64_t OtherSize,
-                               const SelectionDAG &DAG) const {
-  int64_t Offset;
-  if (!equalBaseIndex(Other, DAG, Offset))
-    return false;
-  if (Offset >= 0) {
-    // Other is after *this:
-    // [-------*this---------]
-    //            [---Other--]
-    // ==Offset==>
-    return Offset + OtherSize <= Size;
-  }
-  // Other starts strictly before *this, it cannot be fully contained.
-  //    [-------*this---------]
-  // [--Other--]
-  return false;
-}
-
 /// Parses tree in Ptr for base, index, offset addresses.
 BaseIndexOffset BaseIndexOffset::match(const LSBaseSDNode *N,
                                        const SelectionDAG &DAG) {

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Mon Feb 18 00:24:29 2019
@@ -6373,11 +6373,8 @@ SelectionDAGBuilder::visitIntrinsicCall(
     if (TM.getOptLevel() == CodeGenOpt::None)
       return nullptr;
 
-    const int64_t ObjectSize =
-        cast<ConstantInt>(I.getArgOperand(0))->getSExtValue();
-    Value *const ObjectPtr = I.getArgOperand(1);
     SmallVector<Value *, 4> Allocas;
-    GetUnderlyingObjects(ObjectPtr, Allocas, *DL);
+    GetUnderlyingObjects(I.getArgOperand(1), Allocas, *DL);
 
     for (SmallVectorImpl<Value*>::iterator Object = Allocas.begin(),
            E = Allocas.end(); Object != E; ++Object) {
@@ -6393,13 +6390,15 @@ SelectionDAGBuilder::visitIntrinsicCall(
       if (SI == FuncInfo.StaticAllocaMap.end())
         return nullptr;
 
-      const int FrameIndex = SI->second;
-      int64_t Offset;
-      if (GetPointerBaseWithConstantOffset(
-              ObjectPtr, Offset, DAG.getDataLayout()) != LifetimeObject)
-        Offset = -1; // Cannot determine offset from alloca to lifetime object.
-      Res = DAG.getLifetimeNode(IsStart, sdl, getRoot(), FrameIndex, ObjectSize,
-                                Offset);
+      int FI = SI->second;
+
+      SDValue Ops[2];
+      Ops[0] = getRoot();
+      Ops[1] =
+          DAG.getFrameIndex(FI, TLI.getFrameIndexTy(DAG.getDataLayout()), true);
+      unsigned Opcode = (IsStart ? ISD::LIFETIME_START : ISD::LIFETIME_END);
+
+      Res = DAG.getNode(Opcode, sdl, MVT::Other, Ops);
       DAG.setRoot(Res);
     }
     return nullptr;

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp Mon Feb 18 00:24:29 2019
@@ -709,9 +709,6 @@ void SDNode::print_details(raw_ostream &
        << " -> "
        << ASC->getDestAddressSpace()
        << ']';
-  } else if (const LifetimeSDNode *LN = dyn_cast<LifetimeSDNode>(this)) {
-    if (LN->hasOffset())
-      OS << "<" << LN->getOffset() << " to " << LN->getOffset() + LN->getSize() << ">";
   }
 
   if (VerboseDAGDumping) {

Modified: llvm/trunk/test/CodeGen/BPF/remove_truncate_5.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/BPF/remove_truncate_5.ll?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/BPF/remove_truncate_5.ll (original)
+++ llvm/trunk/test/CodeGen/BPF/remove_truncate_5.ll Mon Feb 18 00:24:29 2019
@@ -25,12 +25,12 @@ define dso_local void @test() local_unna
   call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %2) #3
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 4 %2, i8* align 4 bitcast (%struct.test_t* @test.t to i8*), i64 16, i1 false)
 ; CHECK: r1 = 0
-; CHECK-NEXT: r1 <<= 32
-; CHECK-NEXT: r2 = r1
-; CHECK: [[SECOND:r[12]]] |= 5
-; CHECK-NEXT: *(u64 *)(r10 - 16) = [[SECOND]]
-; CHECK: [[FIRST:r[12]]] |= 0
-; CHECK-NEXT: *(u64 *)(r10 - 8) = [[FIRST]]
+; CHECK: r1 <<= 32
+; CHECK: r2 = r1
+; CHECK: r2 |= 0
+; CHECK: *(u64 *)(r10 - 8) = r2
+; CHECK: r1 |= 5
+; CHECK: *(u64 *)(r10 - 16) = r1
   call void @foo(i8* nonnull %2) #3
 ; CHECK: call foo
   call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %2) #3

Modified: llvm/trunk/test/CodeGen/X86/swap.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/swap.ll?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/swap.ll (original)
+++ llvm/trunk/test/CodeGen/X86/swap.ll Mon Feb 18 00:24:29 2019
@@ -22,6 +22,7 @@ define dso_local void @_Z4SwapP1SS0_(%st
 ; AA-LABEL: _Z4SwapP1SS0_:
 ; AA:       # %bb.0: # %entry
 ; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; AA-NEXT:    vmovups (%rsi), %xmm1
 ; AA-NEXT:    vmovups %xmm1, (%rdi)
 ; AA-NEXT:    vmovups %xmm0, (%rsi)
@@ -42,10 +43,18 @@ entry:
 define dso_local void @onealloc_noreadback(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr {
 ; NOAA-LABEL: onealloc_noreadback:
 ; NOAA:       # %bb.0: # %entry
+; NOAA-NEXT:    vmovups (%rdi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; NOAA-NEXT:    vmovups (%rsi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; NOAA-NEXT:    retq
 ;
 ; AA-LABEL: onealloc_noreadback:
 ; AA:       # %bb.0: # %entry
+; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; AA-NEXT:    vmovups (%rsi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; AA-NEXT:    retq
 entry:
   %alloc = alloca [16 x i8], i8 2, align 1
@@ -64,10 +73,18 @@ entry:
 define dso_local void @twoallocs_trivial(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr {
 ; NOAA-LABEL: twoallocs_trivial:
 ; NOAA:       # %bb.0: # %entry
+; NOAA-NEXT:    vmovups (%rdi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; NOAA-NEXT:    vmovups (%rsi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; NOAA-NEXT:    retq
 ;
 ; AA-LABEL: twoallocs_trivial:
 ; AA:       # %bb.0: # %entry
+; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; AA-NEXT:    vmovups (%rsi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; AA-NEXT:    retq
 entry:
   %alloc1 = alloca [16 x i8], align 1
@@ -87,12 +104,16 @@ define dso_local void @twoallocs(i8* noc
 ; NOAA-LABEL: twoallocs:
 ; NOAA:       # %bb.0: # %entry
 ; NOAA-NEXT:    vmovups (%rdi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; NOAA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; NOAA-NEXT:    vmovups %xmm0, (%rsi)
 ; NOAA-NEXT:    retq
 ;
 ; AA-LABEL: twoallocs:
 ; AA:       # %bb.0: # %entry
 ; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; AA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; AA-NEXT:    vmovups %xmm0, (%rsi)
 ; AA-NEXT:    retq
 entry:
@@ -116,12 +137,18 @@ define dso_local void @onealloc_readback
 ; NOAA-NEXT:    vmovups (%rdi), %xmm0
 ; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; NOAA-NEXT:    vmovups (%rsi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; NOAA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; NOAA-NEXT:    vmovups %xmm0, (%rdi)
 ; NOAA-NEXT:    retq
 ;
 ; AA-LABEL: onealloc_readback_1:
 ; AA:       # %bb.0: # %entry
+; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; AA-NEXT:    vmovups (%rsi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; AA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; AA-NEXT:    vmovups %xmm0, (%rdi)
 ; AA-NEXT:    retq
 entry:
@@ -144,12 +171,18 @@ define dso_local void @onealloc_readback
 ; NOAA-NEXT:    vmovups (%rdi), %xmm0
 ; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; NOAA-NEXT:    vmovups (%rsi), %xmm0
+; NOAA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; NOAA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; NOAA-NEXT:    vmovups %xmm0, (%rdi)
 ; NOAA-NEXT:    retq
 ;
 ; AA-LABEL: onealloc_readback_2:
 ; AA:       # %bb.0: # %entry
+; AA-NEXT:    vmovups (%rdi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
 ; AA-NEXT:    vmovups (%rsi), %xmm0
+; AA-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
+; AA-NEXT:    vmovaps -{{[0-9]+}}(%rsp), %xmm0
 ; AA-NEXT:    vmovups %xmm0, (%rdi)
 ; AA-NEXT:    retq
 entry:

Modified: llvm/trunk/test/DebugInfo/COFF/inlining.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/COFF/inlining.ll?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/COFF/inlining.ll (original)
+++ llvm/trunk/test/DebugInfo/COFF/inlining.ll Mon Feb 18 00:24:29 2019
@@ -29,6 +29,7 @@
 ; ASM: .cv_loc 1 1 9 5                 # t.cpp:9:5
 ; ASM: addl    $4, "?x@@3HC"
 ; ASM: .cv_inline_site_id 2 within 1 inlined_at 1 10 3
+; ASM: .cv_loc 2 1 3 7                 # t.cpp:3:7
 ; ASM: .cv_loc 2 1 4 5                 # t.cpp:4:5
 ; ASM: addl    {{.*}}, "?x@@3HC"
 ; ASM: .cv_loc 2 1 5 5                 # t.cpp:5:5
@@ -171,7 +172,7 @@
 ; OBJ:     PtrParent: 0x0
 ; OBJ:     PtrEnd: 0x0
 ; OBJ:     PtrNext: 0x0
-; OBJ:     CodeSize: 0x35
+; OBJ:     CodeSize: 0x3C
 ; OBJ:     DbgStart: 0x0
 ; OBJ:     DbgEnd: 0x0
 ; OBJ:     FunctionType: baz (0x1004)
@@ -188,9 +189,9 @@
 ; OBJ:     Inlinee: bar (0x1002)
 ; OBJ:      BinaryAnnotations [
 ; OBJ-NEXT:   ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x8, LineOffset: 1}
-; OBJ-NEXT:   ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x9, LineOffset: 1}
+; OBJ-NEXT:   ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1}
 ; OBJ-NEXT:   ChangeLineOffset: 1
-; OBJ-NEXT:   ChangeCodeOffset: 0x14
+; OBJ-NEXT:   ChangeCodeOffset: 0x1D
 ; OBJ-NEXT:   ChangeCodeLength: 0x7
 ; OBJ:      ]
 ; OBJ:   }
@@ -199,8 +200,8 @@
 ; OBJ:     PtrEnd: 0x0
 ; OBJ:     Inlinee: foo (0x1003)
 ; OBJ:     BinaryAnnotations [
-; OBJ-NEXT:  ChangeLineOffset: 2
-; OBJ-NEXT:  ChangeCodeOffset: 0x11
+; OBJ-NEXT:  ChangeCodeOffsetAndLineOffset: {CodeOffset: 0xF, LineOffset: 1}
+; OBJ-NEXT:  ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x9, LineOffset: 1}
 ; OBJ-NEXT:  ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x6, LineOffset: 1}
 ; OBJ-NEXT:  ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1}
 ; OBJ-NEXT:  ChangeCodeLength: 0x7

Modified: llvm/trunk/test/DebugInfo/COFF/lexicalblock.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/COFF/lexicalblock.ll?rev=354245&r1=354244&r2=354245&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/COFF/lexicalblock.ll (original)
+++ llvm/trunk/test/DebugInfo/COFF/lexicalblock.ll Mon Feb 18 00:24:29 2019
@@ -70,6 +70,9 @@
 ; CHECK:   Kind: S_BLOCK32 {{.*}}
 ; CHECK:   BlockName: 
 ; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localC
+; CHECK: }
 ; CHECK: ScopeEndSym {
 ; CHECK:   Kind: S_END {{.*}}
 ; CHECK: }
@@ -77,6 +80,9 @@
 ; CHECK:   Kind: S_BLOCK32 {{.*}}
 ; CHECK:   BlockName: 
 ; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localD
+; CHECK: }
 ; CHECK: ScopeEndSym {
 ; CHECK:   Kind: S_END {{.*}}
 ; CHECK: }
@@ -84,12 +90,38 @@
 ; CHECK:   Kind: S_BLOCK32 {{.*}}
 ; CHECK:   BlockName: 
 ; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localE
+; CHECK: }
+; CHECK: ScopeEndSym {
+; CHECK: }
+; CHECK: BlockSym {
+; CHECK:   Kind: S_BLOCK32 {{.*}}
+; CHECK:   BlockName: 
+; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localF
+; CHECK: }
+; CHECK: BlockSym {
+; CHECK:   Kind: S_BLOCK32 {{.*}}
+; CHECK:   BlockName: 
+; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localG
+; CHECK: }
 ; CHECK: ScopeEndSym {
+; CHECK:   Kind: S_END {{.*}}
+; CHECK: }
+; CHECK: ScopeEndSym {
+; CHECK:   Kind: S_END {{.*}}
 ; CHECK: }
 ; CHECK: BlockSym {
 ; CHECK:   Kind: S_BLOCK32 {{.*}}
 ; CHECK:   BlockName: 
 ; CHECK: }
+; CHECK: LocalSym {
+; CHECK:   VarName: localH
+; CHECK: }
 ; CHECK: ScopeEndSym {
 ; CHECK:   Kind: S_END {{.*}}
 ; CHECK: }




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