RegisterPressure: Remove support for recede()/advance() at MBB boundaries

[oota-llvm.git] / include / llvm / CodeGen / MachineModuleInfo.h

diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index ad394f0e2fffcb078f3ab22fb0e1ce5ab7418ea3..fd42b46476c52e6a081b8e4578f4c096157c60e5 100644 (file)
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -59,7 +59,6 @@ class MachineFunction;
 class Module;
 class PointerType;
 class StructType;
-struct WinEHFuncInfo;
 
 struct SEHHandler {
   // Filter or finally function. Null indicates a catch-all.
@@ -79,13 +78,10 @@ struct LandingPadInfo {
   SmallVector<MCSymbol *, 1> EndLabels;    // Labels after invoke.
   SmallVector<SEHHandler, 1> SEHHandlers;  // SEH handlers active at this lpad.
   MCSymbol *LandingPadLabel;               // Label at beginning of landing pad.
-  const Function *Personality;             // Personality function.
   std::vector<int> TypeIds;               // List of type ids (filters negative).
-  int WinEHState;                         // WinEH specific state number.
 
   explicit LandingPadInfo(MachineBasicBlock *MBB)
-      : LandingPadBlock(MBB), LandingPadLabel(nullptr), Personality(nullptr),
-        WinEHState(-1) {}
+      : LandingPadBlock(MBB), LandingPadLabel(nullptr) {}
 };
 
 //===----------------------------------------------------------------------===//
@@ -163,6 +159,7 @@ class MachineModuleInfo : public ImmutablePass {
 
   bool CallsEHReturn;
   bool CallsUnwindInit;
+  bool HasEHFunclets;
 
   /// DbgInfoAvailable - True if debugging information is available
   /// in this module.
@@ -182,8 +179,6 @@ class MachineModuleInfo : public ImmutablePass {
 
   EHPersonality PersonalityTypeCache;
 
-  DenseMap<const Function *, std::unique_ptr<WinEHFuncInfo>> FuncInfoMap;
-
 public:
   static char ID; // Pass identification, replacement for typeid
 
@@ -220,12 +215,6 @@ public:
   void setModule(const Module *M) { TheModule = M; }
   const Module *getModule() const { return TheModule; }
 
-  const Function *getWinEHParent(const Function *F) const;
-  WinEHFuncInfo &getWinEHFuncInfo(const Function *F);
-  bool hasWinEHFuncInfo(const Function *F) const {
-    return FuncInfoMap.count(getWinEHParent(F)) > 0;
-  }
-
   /// getInfo - Keep track of various per-function pieces of information for
   /// backends that would like to do so.
   ///
@@ -246,12 +235,20 @@ public:
   bool hasDebugInfo() const { return DbgInfoAvailable; }
   void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; }
 
+  // Returns true if we need to generate precise CFI. Currently
+  // this is equivalent to hasDebugInfo(), but if we ever implement
+  // async EH, it will require precise CFI as well.
+  bool usePreciseUnwindInfo() const { return hasDebugInfo(); }
+
   bool callsEHReturn() const { return CallsEHReturn; }
   void setCallsEHReturn(bool b) { CallsEHReturn = b; }
 
   bool callsUnwindInit() const { return CallsUnwindInit; }
   void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
 
+  bool hasEHFunclets() const { return HasEHFunclets; }
+  void setHasEHFunclets(bool V) { HasEHFunclets = V; }
+
   bool usesVAFloatArgument() const {
     return UsesVAFloatArgument;
   }
@@ -284,12 +281,14 @@ public:
   /// getAddrLabelSymbol - Return the symbol to be used for the specified basic
   /// block when its address is taken.  This cannot be its normal LBB label
   /// because the block may be accessed outside its containing function.
-  MCSymbol *getAddrLabelSymbol(const BasicBlock *BB);
+  MCSymbol *getAddrLabelSymbol(const BasicBlock *BB) {
+    return getAddrLabelSymbolToEmit(BB).front();
+  }
 
   /// getAddrLabelSymbolToEmit - Return the symbol to be used for the specified
   /// basic block when its address is taken.  If other blocks were RAUW'd to
   /// this one, we may have to emit them as well, return the whole set.
-  std::vector<MCSymbol*> getAddrLabelSymbolToEmit(const BasicBlock *BB);
+  ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(const BasicBlock *BB);
 
   /// takeDeletedSymbolsForFunction - If the specified function has had any
   /// references to address-taken blocks generated, but the block got deleted,
@@ -316,14 +315,7 @@ public:
 
   /// addPersonality - Provide the personality function for the exception
   /// information.
-  void addPersonality(MachineBasicBlock *LandingPad,
-                      const Function *Personality);
-
-  void addWinEHState(MachineBasicBlock *LandingPad, int State);
-
-  /// getPersonalityIndex - Get index of the current personality function inside
-  /// Personalitites array
-  unsigned getPersonalityIndex() const;
+  void addPersonality(const Function *Personality);
 
   /// getPersonalities - Return array of personality functions ever seen.
   const std::vector<const Function *>& getPersonalities() const {
@@ -423,13 +415,6 @@ public:
     return FilterIds;
   }
 
-  /// getPersonality - Return a personality function if available.  The presence
-  /// of one is required to emit exception handling info.
-  const Function *getPersonality() const;
-
-  /// Classify the personality function amongst known EH styles.
-  EHPersonality getPersonalityType();
-
   /// setVariableDbgInfo - Collect information used to emit debugging
   /// information of a variable.
   void setVariableDbgInfo(const DILocalVariable *Var, const DIExpression *Expr,