Plug a memory leak in the GCOV profiling emitter, which never released the edge table memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168259 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index e9192e5..a8adaa6 100644
--- a/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -540,13 +540,13 @@
// read it. Threads and invoke make this untrue.
// emit [(succs * preds) x i64*], logically [succ x [pred x i64*]].
+ size_t TableSize = Succs.size() * Preds.size();
Type *Int64PtrTy = Type::getInt64PtrTy(*Ctx);
- ArrayType *EdgeTableTy = ArrayType::get(
- Int64PtrTy, Succs.size() * Preds.size());
+ ArrayType *EdgeTableTy = ArrayType::get(Int64PtrTy, TableSize);
- Constant **EdgeTable = new Constant*[Succs.size() * Preds.size()];
+ OwningArrayPtr<Constant *> EdgeTable(new Constant*[TableSize]);
Constant *NullValue = Constant::getNullValue(Int64PtrTy);
- for (int i = 0, ie = Succs.size() * Preds.size(); i != ie; ++i)
+ for (size_t i = 0; i != TableSize; ++i)
EdgeTable[i] = NullValue;
unsigned Edge = 0;
@@ -566,7 +566,7 @@
Edge += Successors;
}
- ArrayRef<Constant*> V(&EdgeTable[0], Succs.size() * Preds.size());
+ ArrayRef<Constant*> V(&EdgeTable[0], TableSize);
GlobalVariable *EdgeTableGV =
new GlobalVariable(
*M, EdgeTableTy, true, GlobalValue::InternalLinkage,