Use of uninitialized value in bitwiseIsEqual from visitFMUL #2601
Description
| Bugzilla Link | 2229 |
| Resolution | FIXED |
| Resolved on | Apr 21, 2008 14:37 |
| Version | unspecified |
| OS | Linux |
| Reporter | LLVM Bugzilla Contributor |
Extended Description
Running test/CodeGen/PowerPC/ppcf128-4.ll under valgrind shows:
Conditional jump or move depends on uninitialised value(s)
at 0x8A700E2: llvm::APFloat::bitwiseIsEqual(llvm::APFloat const&) const (APFloat.cpp:631)
by 0x87B1342: llvm::ConstantFPSDNode::isExactlyValue(llvm::APFloat const&) const (SelectionDAG.cpp:70)
by 0x854E707: llvm::ConstantFPSDNode::isExactlyValue(double) const (SelectionDAGNodes.h:1446)
by 0x877E2EF: (anonymous namespace)::DAGCombiner::visitFMUL(llvm::SDNode*) (DAGCombiner.cpp:3667)
by 0x877F6CB: (anonymous namespace)::DAGCombiner::visit(llvm::SDNode*) (DAGCombiner.cpp:715)
by 0x877F9A2: (anonymous namespace)::DAGCombiner::combine(llvm::SDNode*) (DAGCombiner.cpp:743)
by 0x878120C: (anonymous namespace)::DAGCombiner::Run(bool) (DAGCombiner.cpp:622)
by 0x87815F6: llvm::SelectionDAG::Combine(bool, llvm::AliasAnalysis&) (DAGCombiner.cpp:5545)
by 0x87BDE10: llvm::SelectionDAGISel::CodeGenAndEmitDAG(llvm::SelectionDAG&) (SelectionDAGISel.cpp:4704)
by 0x87D690E: llvm::SelectionDAGISel::SelectBasicBlock(llvm::BasicBlock*, llvm::MachineFunction&, llvm::FunctionLoweringInfo&) (SelectionDAGISel.cpp:4748)
by 0x87D8935: llvm::SelectionDAGISel::runOnFunction(llvm::Function&) (SelectionDAGISel.cpp:4414)
by 0x85B0282: (anonymous namespace)::PPCDAGToDAGISel::runOnFunction(llvm::Function&) (PPCISelDAGToDAG.cpp:56)