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| author | John Criswell <criswell@uiuc.edu> | 2003-08-28 21:43:17 +0000 |
|---|---|---|
| committer | John Criswell <criswell@uiuc.edu> | 2003-08-28 21:43:17 +0000 |
| commit | c9afb499f67a92c70ce349e84081f5bb41fab591 (patch) | |
| tree | 005814ed04775932a31e79033fa5108e95df538b /lib/CodeGen/InstrSched/SchedGraph.cpp | |
| parent | b5d09bf4cc7769ccbd86a96fb8ea92e3c6e3bbc7 (diff) | |
| download | llvm-c9afb499f67a92c70ce349e84081f5bb41fab591.tar.gz llvm-c9afb499f67a92c70ce349e84081f5bb41fab591.tar.bz2 llvm-c9afb499f67a92c70ce349e84081f5bb41fab591.tar.xz | |
Fixed two double free bugs that caused llc to segfault or run forever.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8191 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/InstrSched/SchedGraph.cpp')
| -rw-r--r-- | lib/CodeGen/InstrSched/SchedGraph.cpp | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/lib/CodeGen/InstrSched/SchedGraph.cpp b/lib/CodeGen/InstrSched/SchedGraph.cpp index 9de0434364..bcdd1cfcfc 100644 --- a/lib/CodeGen/InstrSched/SchedGraph.cpp +++ b/lib/CodeGen/InstrSched/SchedGraph.cpp @@ -53,10 +53,18 @@ SchedGraphNode::SchedGraphNode(unsigned NID, MachineBasicBlock *mbb, } } +// +// Method: SchedGraphNode Destructor +// +// Description: +// Free memory allocated by the SchedGraphNode object. +// +// Notes: +// Do not delete the edges here. The base class will take care of that. +// Only handle subclass specific stuff here (where currently there is +// none). +// SchedGraphNode::~SchedGraphNode() { - // for each node, delete its out-edges - std::for_each(beginOutEdges(), endOutEdges(), - deleter<SchedGraphEdge>); } // @@ -67,11 +75,19 @@ SchedGraph::SchedGraph(MachineBasicBlock &mbb, const TargetMachine& target) buildGraph(target); } +// +// Method: SchedGraph Destructor +// +// Description: +// This method deletes memory allocated by the SchedGraph object. +// +// Notes: +// Do not delete the graphRoot or graphLeaf here. The base class handles +// that bit of work. +// SchedGraph::~SchedGraph() { for (const_iterator I = begin(); I != end(); ++I) delete I->second; - delete graphRoot; - delete graphLeaf; } void SchedGraph::dump() const { |