[IR] Cleanup EH instructions a little bit

[oota-llvm.git] / include / llvm / IR / Function.h

diff --git a/include/llvm/IR/Function.h b/include/llvm/IR/Function.h
index 73f22b129ad039fea414d7eb7dcca15cedf062c8..ef7274b4bc66b8ec69095171ecb2597a6c4626cc 100644 (file)
--- a/include/llvm/IR/Function.h
+++ b/include/llvm/IR/Function.h
@@ -25,6 +25,7 @@
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/GlobalObject.h"
+#include "llvm/IR/OperandTraits.h"
 #include "llvm/Support/Compiler.h"
 
 namespace llvm {
@@ -119,11 +120,22 @@ private:
 public:
   static Function *Create(FunctionType *Ty, LinkageTypes Linkage,
                           const Twine &N = "", Module *M = nullptr) {
-    return new(0) Function(Ty, Linkage, N, M);
+    return new(1) Function(Ty, Linkage, N, M);
   }
 
   ~Function() override;
 
+  /// \brief Provide fast operand accessors
+  DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
+
+  /// \brief Get the personality function associated with this function.
+  bool hasPersonalityFn() const { return getNumOperands() != 0; }
+  Constant *getPersonalityFn() const {
+    assert(hasPersonalityFn());
+    return cast<Constant>(Op<0>());
+  }
+  void setPersonalityFn(Constant *C);
+
   Type *getReturnType() const;           // Return the type of the ret val
   FunctionType *getFunctionType() const; // Return the FunctionType for me
 
@@ -281,6 +293,16 @@ public:
     addFnAttr(Attribute::ReadOnly);
   }
 
+  /// @brief Determine if the call can access memmory only using pointers based
+  /// on its arguments.
+  bool onlyAccessesArgMemory() const {
+    return AttributeSets.hasAttribute(AttributeSet::FunctionIndex,
+                                      Attribute::ArgMemOnly);
+  }
+  void setOnlyAccessesArgMemory() {
+    addFnAttr(Attribute::ArgMemOnly);
+  }
+  
   /// @brief Determine if the function cannot return.
   bool doesNotReturn() const {
     return AttributeSets.hasAttribute(AttributeSet::FunctionIndex,
@@ -308,6 +330,16 @@ public:
     addFnAttr(Attribute::NoDuplicate);
   }
 
+  /// @brief Determine if the call is convergent.
+  bool isConvergent() const {
+    return AttributeSets.hasAttribute(AttributeSet::FunctionIndex,
+                                      Attribute::Convergent);
+  }
+  void setConvergent() {
+    addFnAttr(Attribute::Convergent);
+  }
+
+
   /// @brief True if the ABI mandates (or the user requested) that this
   /// function be in a unwind table.
   bool hasUWTable() const {
@@ -363,6 +395,16 @@ public:
     addAttribute(n, Attribute::ReadOnly);
   }
 
+  /// Optimize this function for minimum size (-Oz).
+  bool optForMinSize() const {
+    return hasFnAttribute(Attribute::MinSize);
+  };
+  
+  /// Optimize this function for size (-Os) or minimum size (-Oz).
+  bool optForSize() const {
+    return hasFnAttribute(Attribute::OptimizeForSize) || optForMinSize();
+  }
+
   /// copyAttributesFrom - copy all additional attributes (those not needed to
   /// create a Function) from the Function Src to this one.
   void copyAttributesFrom(const GlobalValue *Src) override;
@@ -591,6 +633,11 @@ ilist_traits<Argument>::getSymTab(Function *F) {
   return F ? &F->getValueSymbolTable() : nullptr;
 }
 
+template <>
+struct OperandTraits<Function> : public OptionalOperandTraits<Function> {};
+
+DEFINE_TRANSPARENT_OPERAND_ACCESSORS(Function, Value)
+
 } // End llvm namespace
 
 #endif