From cbb70ce070d220642b038ea101d9c0f9fbf860d6 Mon Sep 17 00:00:00 2001 From: dim Date: Sun, 20 Feb 2011 12:57:14 +0000 Subject: Vendor import of llvm trunk r126079: http://llvm.org/svn/llvm-project/llvm/trunk@126079 --- lib/VMCore/Function.cpp | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) (limited to 'lib/VMCore/Function.cpp') diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp index 8f94efc..00d1d78 100644 --- a/lib/VMCore/Function.cpp +++ b/lib/VMCore/Function.cpp @@ -20,8 +20,8 @@ #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" @@ -227,19 +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(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) { -- cgit v1.1