Author: brunoricci
Date: Mon Oct 29 09:12:37 2018
New Revision: 345510

URL: http://llvm.org/viewvc/llvm-project?rev=345510&view=rev
Log:
[AST] Only store the needed data in SwitchStmt

Don't store the data for the init statement and condition variable
if not needed. This cuts the size of SwitchStmt by up to 2 pointers.
The order of the children is intentionally kept the same.

Also use the newly available space in the bit-fields of Stmt
to store the bit representing whether all enums have been covered
instead of using a PointerIntPair.

Differential Revision: https://reviews.llvm.org/D53714

Reviewed By: rjmccall


Modified:
    cfe/trunk/include/clang/AST/Stmt.h
    cfe/trunk/lib/AST/ASTDumper.cpp
    cfe/trunk/lib/AST/ASTImporter.cpp
    cfe/trunk/lib/AST/Stmt.cpp
    cfe/trunk/lib/Sema/SemaStmt.cpp
    cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
    cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
    cfe/trunk/test/Import/switch-stmt/test.cpp
    cfe/trunk/test/Misc/ast-dump-color.cpp

Modified: cfe/trunk/include/clang/AST/Stmt.h
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Stmt.h?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/Stmt.h (original)
+++ cfe/trunk/include/clang/AST/Stmt.h Mon Oct 29 09:12:37 2018
@@ -177,6 +177,17 @@ protected:
 
     unsigned : NumStmtBits;
 
+    /// True if the SwitchStmt has storage for an init statement.
+    unsigned HasInit : 1;
+
+    /// True if the SwitchStmt has storage for a condition variable.
+    unsigned HasVar : 1;
+
+    /// If the SwitchStmt is a switch on an enum value, records whether all
+    /// the enum values were covered by CaseStmts.  The coverage information
+    /// value is meant to be a hint for possible clients.
+    unsigned AllEnumCasesCovered : 1;
+
     /// The location of the "switch".
     SourceLocation SwitchLoc;
   };
@@ -1427,21 +1438,102 @@ public:
 };
 
 /// SwitchStmt - This represents a 'switch' stmt.
-class SwitchStmt : public Stmt {
-  enum { INIT, VAR, COND, BODY, END_EXPR };
-  Stmt* SubExprs[END_EXPR];
-
-  // This points to a linked list of case and default statements and, if the
-  // SwitchStmt is a switch on an enum value, records whether all the enum
-  // values were covered by CaseStmts.  The coverage information value is meant
-  // to be a hint for possible clients.
-  llvm::PointerIntPair<SwitchCase *, 1, bool> FirstCase;
+class SwitchStmt final : public Stmt,
+                         private llvm::TrailingObjects<SwitchStmt, Stmt *> {
+  friend TrailingObjects;
 
-public:
-  SwitchStmt(const ASTContext &C, Stmt *Init, VarDecl *Var, Expr *cond);
+  /// Points to a linked list of case and default statements.
+  SwitchCase *FirstCase;
+
+  // SwitchStmt is followed by several trailing objects,
+  // some of which optional. Note that it would be more convenient to
+  // put the optional trailing objects at the end but this would change
+  // the order in children().
+  // The trailing objects are in order:
+  //
+  // * A "Stmt *" for the init statement.
+  //    Present if and only if hasInitStorage().
+  //
+  // * A "Stmt *" for the condition variable.
+  //    Present if and only if hasVarStorage(). This is in fact a "DeclStmt *".
+  //
+  // * A "Stmt *" for the condition.
+  //    Always present. This is in fact an "Expr *".
+  //
+  // * A "Stmt *" for the body.
+  //    Always present.
+  enum { InitOffset = 0, BodyOffsetFromCond = 1 };
+  enum { NumMandatoryStmtPtr = 2 };
+
+  unsigned numTrailingObjects(OverloadToken<Stmt *>) const {
+    return NumMandatoryStmtPtr + hasInitStorage() + hasVarStorage();
+  }
+
+  unsigned initOffset() const { return InitOffset; }
+  unsigned varOffset() const { return InitOffset + hasInitStorage(); }
+  unsigned condOffset() const {
+    return InitOffset + hasInitStorage() + hasVarStorage();
+  }
+  unsigned bodyOffset() const { return condOffset() + BodyOffsetFromCond; }
+
+  /// Build a switch statement.
+  SwitchStmt(const ASTContext &Ctx, Stmt *Init, VarDecl *Var, Expr *Cond);
 
   /// Build a empty switch statement.
-  explicit SwitchStmt(EmptyShell Empty) : Stmt(SwitchStmtClass, Empty) {}
+  explicit SwitchStmt(EmptyShell Empty, bool HasInit, bool HasVar);
+
+public:
+  /// Create a switch statement.
+  static SwitchStmt *Create(const ASTContext &Ctx, Stmt *Init, VarDecl *Var,
+                            Expr *Cond);
+
+  /// Create an empty switch statement optionally with storage for
+  /// an init expression and a condition variable.
+  static SwitchStmt *CreateEmpty(const ASTContext &Ctx, bool HasInit,
+                                 bool HasVar);
+
+  /// True if this SwitchStmt has storage for an init statement.
+  bool hasInitStorage() const { return SwitchStmtBits.HasInit; }
+
+  /// True if this SwitchStmt has storage for a condition variable.
+  bool hasVarStorage() const { return SwitchStmtBits.HasVar; }
+
+  Expr *getCond() {
+    return reinterpret_cast<Expr *>(getTrailingObjects<Stmt 
*>()[condOffset()]);
+  }
+
+  const Expr *getCond() const {
+    return reinterpret_cast<Expr *>(getTrailingObjects<Stmt 
*>()[condOffset()]);
+  }
+
+  void setCond(Expr *Cond) {
+    getTrailingObjects<Stmt *>()[condOffset()] = reinterpret_cast<Stmt 
*>(Cond);
+  }
+
+  Stmt *getBody() { return getTrailingObjects<Stmt *>()[bodyOffset()]; }
+  const Stmt *getBody() const {
+    return getTrailingObjects<Stmt *>()[bodyOffset()];
+  }
+
+  void setBody(Stmt *Body) {
+    getTrailingObjects<Stmt *>()[bodyOffset()] = Body;
+  }
+
+  Stmt *getInit() {
+    return hasInitStorage() ? getTrailingObjects<Stmt *>()[initOffset()]
+                            : nullptr;
+  }
+
+  const Stmt *getInit() const {
+    return hasInitStorage() ? getTrailingObjects<Stmt *>()[initOffset()]
+                            : nullptr;
+  }
+
+  void setInit(Stmt *Init) {
+    assert(hasInitStorage() &&
+           "This switch statement has no storage for an init statement!");
+    getTrailingObjects<Stmt *>()[initOffset()] = Init;
+  }
 
   /// Retrieve the variable declared in this "switch" statement, if any.
   ///
@@ -1452,64 +1544,69 @@ public:
   ///   // ...
   /// }
   /// \endcode
-  VarDecl *getConditionVariable() const;
-  void setConditionVariable(const ASTContext &C, VarDecl *V);
+  VarDecl *getConditionVariable();
+  const VarDecl *getConditionVariable() const {
+    return const_cast<SwitchStmt *>(this)->getConditionVariable();
+  }
+
+  /// Set the condition variable in this switch statement.
+  /// The switch statement must have storage for it.
+  void setConditionVariable(const ASTContext &Ctx, VarDecl *VD);
 
   /// If this SwitchStmt has a condition variable, return the faux DeclStmt
   /// associated with the creation of that condition variable.
-  const DeclStmt *getConditionVariableDeclStmt() const {
-    return reinterpret_cast<DeclStmt*>(SubExprs[VAR]);
+  DeclStmt *getConditionVariableDeclStmt() {
+    return hasVarStorage() ? static_cast<DeclStmt *>(
+                                 getTrailingObjects<Stmt *>()[varOffset()])
+                           : nullptr;
   }
 
-  Stmt *getInit() { return SubExprs[INIT]; }
-  const Stmt *getInit() const { return SubExprs[INIT]; }
-  void setInit(Stmt *S) { SubExprs[INIT] = S; }
-  const Expr *getCond() const { return 
reinterpret_cast<Expr*>(SubExprs[COND]);}
-  const Stmt *getBody() const { return SubExprs[BODY]; }
-  const SwitchCase *getSwitchCaseList() const { return FirstCase.getPointer(); 
}
-
-  Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]);}
-  void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt *>(E); }
-  Stmt *getBody() { return SubExprs[BODY]; }
-  void setBody(Stmt *S) { SubExprs[BODY] = S; }
-  SwitchCase *getSwitchCaseList() { return FirstCase.getPointer(); }
+  const DeclStmt *getConditionVariableDeclStmt() const {
+    return hasVarStorage() ? static_cast<DeclStmt *>(
+                                 getTrailingObjects<Stmt *>()[varOffset()])
+                           : nullptr;
+  }
 
-  /// Set the case list for this switch statement.
-  void setSwitchCaseList(SwitchCase *SC) { FirstCase.setPointer(SC); }
+  SwitchCase *getSwitchCaseList() { return FirstCase; }
+  const SwitchCase *getSwitchCaseList() const { return FirstCase; }
+  void setSwitchCaseList(SwitchCase *SC) { FirstCase = SC; }
 
   SourceLocation getSwitchLoc() const { return SwitchStmtBits.SwitchLoc; }
   void setSwitchLoc(SourceLocation L) { SwitchStmtBits.SwitchLoc = L; }
 
   void setBody(Stmt *S, SourceLocation SL) {
-    SubExprs[BODY] = S;
-    SwitchStmtBits.SwitchLoc = SL;
+    setBody(S);
+    setSwitchLoc(SL);
   }
 
   void addSwitchCase(SwitchCase *SC) {
-    assert(!SC->getNextSwitchCase()
-           && "case/default already added to a switch");
-    SC->setNextSwitchCase(FirstCase.getPointer());
-    FirstCase.setPointer(SC);
+    assert(!SC->getNextSwitchCase() &&
+           "case/default already added to a switch");
+    SC->setNextSwitchCase(FirstCase);
+    FirstCase = SC;
   }
 
   /// Set a flag in the SwitchStmt indicating that if the 'switch (X)' is a
   /// switch over an enum value then all cases have been explicitly covered.
-  void setAllEnumCasesCovered() { FirstCase.setInt(true); }
+  void setAllEnumCasesCovered() { SwitchStmtBits.AllEnumCasesCovered = true; }
 
   /// Returns true if the SwitchStmt is a switch of an enum value and all cases
   /// have been explicitly covered.
-  bool isAllEnumCasesCovered() const { return FirstCase.getInt(); }
+  bool isAllEnumCasesCovered() const {
+    return SwitchStmtBits.AllEnumCasesCovered;
+  }
 
   SourceLocation getBeginLoc() const { return getSwitchLoc(); }
-
-  SourceLocation getEndLoc() const {
-    return SubExprs[BODY] ? SubExprs[BODY]->getEndLoc()
-                          : SubExprs[COND]->getEndLoc();
+  SourceLocation getEndLoc() const LLVM_READONLY {
+    return getBody() ? getBody()->getEndLoc()
+                     : reinterpret_cast<const Stmt *>(getCond())->getEndLoc();
   }
 
   // Iterators
   child_range children() {
-    return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR);
+    return child_range(getTrailingObjects<Stmt *>(),
+                       getTrailingObjects<Stmt *>() +
+                           numTrailingObjects(OverloadToken<Stmt *>()));
   }
 
   static bool classof(const Stmt *T) {

Modified: cfe/trunk/lib/AST/ASTDumper.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTDumper.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ASTDumper.cpp (original)
+++ cfe/trunk/lib/AST/ASTDumper.cpp Mon Oct 29 09:12:37 2018
@@ -512,6 +512,7 @@ namespace  {
     void VisitDeclStmt(const DeclStmt *Node);
     void VisitAttributedStmt(const AttributedStmt *Node);
     void VisitIfStmt(const IfStmt *Node);
+    void VisitSwitchStmt(const SwitchStmt *Node);
     void VisitLabelStmt(const LabelStmt *Node);
     void VisitGotoStmt(const GotoStmt *Node);
     void VisitCXXCatchStmt(const CXXCatchStmt *Node);
@@ -2032,6 +2033,14 @@ void ASTDumper::VisitIfStmt(const IfStmt
     OS << " has_else";
 }
 
+void ASTDumper::VisitSwitchStmt(const SwitchStmt *Node) {
+  VisitStmt(Node);
+  if (Node->hasInitStorage())
+    OS << " has_init";
+  if (Node->hasVarStorage())
+    OS << " has_var";
+}
+
 void ASTDumper::VisitLabelStmt(const LabelStmt *Node) {
   VisitStmt(Node);
   OS << " '" << Node->getName() << "'";

Modified: cfe/trunk/lib/AST/ASTImporter.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTImporter.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ASTImporter.cpp (original)
+++ cfe/trunk/lib/AST/ASTImporter.cpp Mon Oct 29 09:12:37 2018
@@ -5790,8 +5790,8 @@ ExpectedStmt ASTNodeImporter::VisitSwitc
   SourceLocation ToSwitchLoc;
   std::tie(ToInit, ToConditionVariable, ToCond, ToBody, ToSwitchLoc) = *Imp;
 
-  auto *ToStmt = new (Importer.getToContext()) SwitchStmt(
-      Importer.getToContext(), ToInit, ToConditionVariable, ToCond);
+  auto *ToStmt = SwitchStmt::Create(Importer.getToContext(), ToInit,
+                                    ToConditionVariable, ToCond);
   ToStmt->setBody(ToBody);
   ToStmt->setSwitchLoc(ToSwitchLoc);
 

Modified: cfe/trunk/lib/AST/Stmt.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/Stmt.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/AST/Stmt.cpp (original)
+++ cfe/trunk/lib/AST/Stmt.cpp Mon Oct 29 09:12:37 2018
@@ -913,33 +913,69 @@ void ForStmt::setConditionVariable(const
                                        VarRange.getEnd());
 }
 
-SwitchStmt::SwitchStmt(const ASTContext &C, Stmt *init, VarDecl *Var,
-                       Expr *cond)
-    : Stmt(SwitchStmtClass), FirstCase(nullptr, false) {
-  setConditionVariable(C, Var);
-  SubExprs[INIT] = init;
-  SubExprs[COND] = cond;
-  SubExprs[BODY] = nullptr;
-  SwitchStmtBits.SwitchLoc = SourceLocation{};
+SwitchStmt::SwitchStmt(const ASTContext &Ctx, Stmt *Init, VarDecl *Var,
+                       Expr *Cond)
+    : Stmt(SwitchStmtClass), FirstCase(nullptr) {
+  bool HasInit = Init != nullptr;
+  bool HasVar = Var != nullptr;
+  SwitchStmtBits.HasInit = HasInit;
+  SwitchStmtBits.HasVar = HasVar;
+  SwitchStmtBits.AllEnumCasesCovered = false;
+
+  setCond(Cond);
+  setBody(nullptr);
+  if (HasInit)
+    setInit(Init);
+  if (HasVar)
+    setConditionVariable(Ctx, Var);
+
+  setSwitchLoc(SourceLocation{});
 }
 
-VarDecl *SwitchStmt::getConditionVariable() const {
-  if (!SubExprs[VAR])
-    return nullptr;
+SwitchStmt::SwitchStmt(EmptyShell Empty, bool HasInit, bool HasVar)
+    : Stmt(SwitchStmtClass, Empty) {
+  SwitchStmtBits.HasInit = HasInit;
+  SwitchStmtBits.HasVar = HasVar;
+  SwitchStmtBits.AllEnumCasesCovered = false;
+}
+
+SwitchStmt *SwitchStmt::Create(const ASTContext &Ctx, Stmt *Init, VarDecl *Var,
+                               Expr *Cond) {
+  bool HasInit = Init != nullptr;
+  bool HasVar = Var != nullptr;
+  void *Mem = Ctx.Allocate(
+      totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasInit + HasVar),
+      alignof(SwitchStmt));
+  return new (Mem) SwitchStmt(Ctx, Init, Var, Cond);
+}
 
-  auto *DS = cast<DeclStmt>(SubExprs[VAR]);
+SwitchStmt *SwitchStmt::CreateEmpty(const ASTContext &Ctx, bool HasInit,
+                                    bool HasVar) {
+  void *Mem = Ctx.Allocate(
+      totalSizeToAlloc<Stmt *>(NumMandatoryStmtPtr + HasInit + HasVar),
+      alignof(SwitchStmt));
+  return new (Mem) SwitchStmt(EmptyShell(), HasInit, HasVar);
+}
+
+VarDecl *SwitchStmt::getConditionVariable() {
+  auto *DS = getConditionVariableDeclStmt();
+  if (!DS)
+    return nullptr;
   return cast<VarDecl>(DS->getSingleDecl());
 }
 
-void SwitchStmt::setConditionVariable(const ASTContext &C, VarDecl *V) {
+void SwitchStmt::setConditionVariable(const ASTContext &Ctx, VarDecl *V) {
+  assert(hasVarStorage() &&
+         "This switch statement has no storage for a condition variable!");
+
   if (!V) {
-    SubExprs[VAR] = nullptr;
+    getTrailingObjects<Stmt *>()[varOffset()] = nullptr;
     return;
   }
 
   SourceRange VarRange = V->getSourceRange();
-  SubExprs[VAR] = new (C) DeclStmt(DeclGroupRef(V), VarRange.getBegin(),
-                                   VarRange.getEnd());
+  getTrailingObjects<Stmt *>()[varOffset()] = new (Ctx)
+      DeclStmt(DeclGroupRef(V), VarRange.getBegin(), VarRange.getEnd());
 }
 
 WhileStmt::WhileStmt(const ASTContext &C, VarDecl *Var, Expr *cond, Stmt *body,

Modified: cfe/trunk/lib/Sema/SemaStmt.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaStmt.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaStmt.cpp (original)
+++ cfe/trunk/lib/Sema/SemaStmt.cpp Mon Oct 29 09:12:37 2018
@@ -727,8 +727,7 @@ StmtResult Sema::ActOnStartOfSwitchStmt(
 
   setFunctionHasBranchIntoScope();
 
-  SwitchStmt *SS = new (Context)
-      SwitchStmt(Context, InitStmt, Cond.get().first, CondExpr);
+  auto *SS = SwitchStmt::Create(Context, InitStmt, Cond.get().first, CondExpr);
   getCurFunction()->SwitchStack.push_back(
       FunctionScopeInfo::SwitchInfo(SS, false));
   return SS;

Modified: cfe/trunk/lib/Serialization/ASTReaderStmt.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderStmt.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReaderStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReaderStmt.cpp Mon Oct 29 09:12:37 2018
@@ -240,13 +240,21 @@ void ASTStmtReader::VisitIfStmt(IfStmt *
 
 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
   VisitStmt(S);
-  S->setInit(Record.readSubStmt());
-  S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
+
+  bool HasInit = Record.readInt();
+  bool HasVar = Record.readInt();
+  bool AllEnumCasesCovered = Record.readInt();
+  if (AllEnumCasesCovered)
+    S->setAllEnumCasesCovered();
+
   S->setCond(Record.readSubExpr());
   S->setBody(Record.readSubStmt());
+  if (HasInit)
+    S->setInit(Record.readSubStmt());
+  if (HasVar)
+    S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
+
   S->setSwitchLoc(ReadSourceLocation());
-  if (Record.readInt())
-    S->setAllEnumCasesCovered();
 
   SwitchCase *PrevSC = nullptr;
   for (auto E = Record.size(); Record.getIdx() != E; ) {
@@ -2310,7 +2318,10 @@ Stmt *ASTReader::ReadStmtFromStream(Modu
       break;
 
     case STMT_SWITCH:
-      S = new (Context) SwitchStmt(Empty);
+      S = SwitchStmt::CreateEmpty(
+          Context,
+          /* HasInit=*/Record[ASTStmtReader::NumStmtFields + 0],
+          /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 1]);
       break;
 
     case STMT_WHILE:

Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Mon Oct 29 09:12:37 2018
@@ -159,12 +159,22 @@ void ASTStmtWriter::VisitIfStmt(IfStmt *
 
 void ASTStmtWriter::VisitSwitchStmt(SwitchStmt *S) {
   VisitStmt(S);
-  Record.AddStmt(S->getInit());
-  Record.AddDeclRef(S->getConditionVariable());
+
+  bool HasInit = S->getInit() != nullptr;
+  bool HasVar = S->getConditionVariableDeclStmt() != nullptr;
+  Record.push_back(HasInit);
+  Record.push_back(HasVar);
+  Record.push_back(S->isAllEnumCasesCovered());
+
   Record.AddStmt(S->getCond());
   Record.AddStmt(S->getBody());
+  if (HasInit)
+    Record.AddStmt(S->getInit());
+  if (HasVar)
+    Record.AddDeclRef(S->getConditionVariable());
+
   Record.AddSourceLocation(S->getSwitchLoc());
-  Record.push_back(S->isAllEnumCasesCovered());
+
   for (SwitchCase *SC = S->getSwitchCaseList(); SC;
        SC = SC->getNextSwitchCase())
     Record.push_back(Writer.RecordSwitchCaseID(SC));

Modified: cfe/trunk/test/Import/switch-stmt/test.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Import/switch-stmt/test.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/test/Import/switch-stmt/test.cpp (original)
+++ cfe/trunk/test/Import/switch-stmt/test.cpp Mon Oct 29 09:12:37 2018
@@ -1,8 +1,6 @@
 // RUN: clang-import-test -dump-ast -import %S/Inputs/F.cpp -expression %s | 
FileCheck %s
 
 // CHECK: SwitchStmt
-// CHECK-NEXT: <<NULL>>
-// CHECK-NEXT: <<NULL>>
 // CHECK-NEXT: IntegerLiteral
 // CHECK-NEXT: CompoundStmt
 // CHECK-NEXT: CaseStmt
@@ -22,7 +20,6 @@
 // CHECK-NEXT: DeclStmt
 // CHECK-NEXT: VarDecl
 // CHECK-SAME: varname
-// CHECK-NEXT: <<NULL>>
 // CHECK-NEXT: IntegerLiteral
 // CHECK-NEXT: CompoundStmt
 // CHECK-NEXT: CaseStmt
@@ -37,15 +34,11 @@
 // CHECK-NEXT: BreakStmt
 
 // CHECK: SwitchStmt
-// CHECK-NEXT: <<NULL>>
-// CHECK-NEXT: <<NULL>>
 // CHECK-NEXT: IntegerLiteral
 // CHECK-NEXT: DefaultStmt
 // CHECK-NEXT: BreakStmt
 
 // CHECK: SwitchStmt
-// CHECK-NEXT: <<NULL>>
-// CHECK-NEXT: <<NULL>>
 // CHECK-NEXT: IntegerLiteral
 // CHECK-NEXT: NullStmt
 

Modified: cfe/trunk/test/Misc/ast-dump-color.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Misc/ast-dump-color.cpp?rev=345510&r1=345509&r2=345510&view=diff
==============================================================================
--- cfe/trunk/test/Misc/ast-dump-color.cpp (original)
+++ cfe/trunk/test/Misc/ast-dump-color.cpp Mon Oct 29 09:12:37 2018
@@ -46,7 +46,6 @@ struct Invalid {
 //CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]FunctionDecl[[RESET]][[Yellow]] 
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:9:1[[RESET]], 
[[Yellow]]line:16:1[[RESET]]> [[Yellow]]line:9:6[[RESET]][[CYAN]] 
TestAttributedStmt[[RESET]] [[Green]]'void ()'[[RESET]]{{$}}
 //CHECK: {{^}}[[Blue]]| 
|-[[RESET]][[MAGENTA:.\[0;1;35m]]CompoundStmt[[RESET]][[Yellow]] 
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:27[[RESET]], 
[[Yellow]]line:16:1[[RESET]]>{{$}}
 //CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]SwitchStmt[[RESET]][[Yellow]] 
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:10:3[[RESET]], 
[[Yellow]]line:15:3[[RESET]]>{{$}}
-//CHECK: {{^}}[[Blue]]| |   
|-[[RESET]][[Blue:.\[0;34m]]<<<NULL>>>[[RESET]]{{$}}
 //CHECK: {{^}}[[Blue]]| |   
|-[[RESET]][[MAGENTA]]IntegerLiteral[[RESET]][[Yellow]] 
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:10:11[[RESET]]> 
[[Green]]'int'[[RESET]][[Cyan:.\[0;36m]][[RESET]][[Cyan]][[RESET]][[CYAN]] 
1[[RESET]]{{$}}
 //CHECK: {{^}}[[Blue]]| |   
`-[[RESET]][[MAGENTA]]CompoundStmt[[RESET]][[Yellow]] 
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:14[[RESET]], 
[[Yellow]]line:15:3[[RESET]]>{{$}}
 //CHECK: {{^}}[[Blue]]| |     
|-[[RESET]][[MAGENTA]]CaseStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] 
<[[Yellow]]line:11:3[[RESET]], [[Yellow]]line:12:27[[RESET]]>{{$}}


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