diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/BasicBlockUtils.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/BasicBlockUtils.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp index aa7b933022c..842434cca15 100644 --- a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp +++ b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp @@ -38,6 +38,8 @@ #include "llvm/IR/Value.h" #include "llvm/IR/ValueHandle.h" #include "llvm/Support/Casting.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Transforms/Utils/Local.h" #include <cassert> #include <cstdint> @@ -47,6 +49,8 @@ using namespace llvm; +#define DEBUG_TYPE "basicblock-utils" + void llvm::DetatchDeadBlocks( ArrayRef<BasicBlock *> BBs, SmallVectorImpl<DominatorTree::UpdateType> *Updates, @@ -190,6 +194,9 @@ bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, DomTreeUpdater *DTU, if (IncValue == &PN) return false; + LLVM_DEBUG(dbgs() << "Merging: " << BB->getName() << " into " + << PredBB->getName() << "\n"); + // Begin by getting rid of unneeded PHIs. SmallVector<AssertingVH<Value>, 4> IncomingValues; if (isa<PHINode>(BB->front())) { |
