#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"
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) {
#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;
}