Fix lines that exceed 80 columns. There is no change in functionality.

[oota-llvm.git] / lib / VMCore / Function.cpp

diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp
index f00f6ee11fb63180e7d1e577ff2934dbb7a22d39..00d1d7873247736ca734b950449f53b38ebf9f10 100644 (file)
--- a/lib/VMCore/Function.cpp
+++ b/lib/VMCore/Function.cpp
@@ -16,11 +16,12 @@
 #include "llvm/IntrinsicInst.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/Support/CallSite.h"
 #include "llvm/Support/LeakDetector.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/StringPool.h"
-#include "llvm/System/RWMutex.h"
-#include "llvm/System/Threading.h"
+#include "llvm/Support/RWMutex.h"
+#include "llvm/Support/Threading.h"
 #include "SymbolTableListTraitsImpl.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/StringExtras.h"
@@ -73,35 +74,35 @@ unsigned Argument::getArgNo() const {
 /// hasByValAttr - Return true if this argument has the byval attribute on it
 /// in its containing function.
 bool Argument::hasByValAttr() const {
-  if (!isa<PointerType>(getType())) return false;
+  if (!getType()->isPointerTy()) return false;
   return getParent()->paramHasAttr(getArgNo()+1, Attribute::ByVal);
 }
 
 /// hasNestAttr - Return true if this argument has the nest attribute on
 /// it in its containing function.
 bool Argument::hasNestAttr() const {
-  if (!isa<PointerType>(getType())) return false;
+  if (!getType()->isPointerTy()) return false;
   return getParent()->paramHasAttr(getArgNo()+1, Attribute::Nest);
 }
 
 /// hasNoAliasAttr - Return true if this argument has the noalias attribute on
 /// it in its containing function.
 bool Argument::hasNoAliasAttr() const {
-  if (!isa<PointerType>(getType())) return false;
+  if (!getType()->isPointerTy()) return false;
   return getParent()->paramHasAttr(getArgNo()+1, Attribute::NoAlias);
 }
 
 /// hasNoCaptureAttr - Return true if this argument has the nocapture attribute
 /// on it in its containing function.
 bool Argument::hasNoCaptureAttr() const {
-  if (!isa<PointerType>(getType())) return false;
+  if (!getType()->isPointerTy()) return false;
   return getParent()->paramHasAttr(getArgNo()+1, Attribute::NoCapture);
 }
 
 /// hasSRetAttr - Return true if this argument has the sret attribute on
 /// it in its containing function.
 bool Argument::hasStructRetAttr() const {
-  if (!isa<PointerType>(getType())) return false;
+  if (!getType()->isPointerTy()) return false;
   if (this != getParent()->arg_begin())
     return false; // StructRet param must be first param
   return getParent()->paramHasAttr(1, Attribute::StructRet);
@@ -155,7 +156,7 @@ Function::Function(const FunctionType *Ty, LinkageTypes Linkage,
   : GlobalValue(PointerType::getUnqual(Ty), 
                 Value::FunctionVal, 0, 0, Linkage, name) {
   assert(FunctionType::isValidReturnType(getReturnType()) &&
-         !isa<OpaqueType>(getReturnType()) && "invalid return type");
+         !getReturnType()->isOpaqueTy() && "invalid return type");
   SymTab = new ValueSymbolTable();
 
   // If the function has arguments, mark them as lazily built.
@@ -226,19 +227,10 @@ void Function::dropAllReferences() {
   for (iterator I = begin(), E = end(); I != E; ++I)
     I->dropAllReferences();
   
-  // Delete all basic blocks.
-  while (!BasicBlocks.empty()) {
-    // If there is still a reference to the block, it must be a 'blockaddress'
-    // constant pointing to it.  Just replace the BlockAddress with undef.
-    BasicBlock *BB = BasicBlocks.begin();
-    if (!BB->use_empty()) {
-      BlockAddress *BA = cast<BlockAddress>(BB->use_back());
-      BA->replaceAllUsesWith(UndefValue::get(BA->getType()));
-      BA->destroyConstant();
-    }
-    
-    BB->eraseFromParent();
-  }
+  // Delete all basic blocks. They are now unused, except possibly by
+  // blockaddresses, but BasicBlock's destructor takes care of those.
+  while (!BasicBlocks.empty())
+    BasicBlocks.begin()->eraseFromParent();
 }
 
 void Function::addAttribute(unsigned i, Attributes attr) {
@@ -400,13 +392,16 @@ Function *Intrinsic::getDeclaration(Module *M, ID id, const Type **Tys,
 #include "llvm/Intrinsics.gen"
 #undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
 
-  /// hasAddressTaken - returns true if there are any uses of this function
-  /// other than direct calls or invokes to it.
-bool Function::hasAddressTaken() const {
-  for (Value::use_const_iterator I = use_begin(), E = use_end(); I != E; ++I) {
-    if (I.getOperandNo() != 0 ||
-        (!isa<CallInst>(*I) && !isa<InvokeInst>(*I)))
-      return true;
+/// hasAddressTaken - returns true if there are any uses of this function
+/// other than direct calls or invokes to it.
+bool Function::hasAddressTaken(const User* *PutOffender) const {
+  for (Value::const_use_iterator I = use_begin(), E = use_end(); I != E; ++I) {
+    const User *U = *I;
+    if (!isa<CallInst>(U) && !isa<InvokeInst>(U))
+      return PutOffender ? (*PutOffender = U, true) : true;
+    ImmutableCallSite CS(cast<Instruction>(U));
+    if (!CS.isCallee(I))
+      return PutOffender ? (*PutOffender = U, true) : true;
   }
   return false;
 }