LSR can produce invalid SSA when value reuse occurs #1867
Labels
bugzilla
Issues migrated from bugzilla
compile-fail
Use [accepts-invalid] and [rejects-valid] instead
Extended Description
laurov@laurov-desktop:~/ffmpeg/libavcodec$ llc bugpoint-reduced-simplified.bc
llc: /home/laurov/llvm/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:732:
llvm::SDOperand llvm::SelectionDAGLowering::getValue(const llvm::Value*):
Assertion `InReg && "Value not in map!"' failed.
llc((anonymous namespace)::PrintStackTrace()+0x1a)[0x8951f92]
llc((anonymous namespace)::SignalHandler(int)+0x112)[0x8952258]
[0xffffe420]
/lib/tls/i686/cmov/libc.so.6(abort+0x101)[0xb7ca6641]
/lib/tls/i686/cmov/libc.so.6(__assert_fail+0xfb)[0xb7c9e43b]
llc(llvm::SelectionDAGLowering::getValue(llvm::Value const*)+0xb8d)[0x86cd9d3]
llc(llvm::SelectionDAGLowering::visitScalarBinary(llvm::User&, unsigned
int)+0x31)[0x86d8cff]
llc(llvm::SelectionDAGLowering::visitAdd(llvm::User&)+0x8c)[0x86f7912]
llc(llvm::SelectionDAGLowering::visit(unsigned int, llvm::User&)+0xda)[0x86f7bde]
llc(llvm::SelectionDAGLowering::visit(llvm::Instruction&)+0x28)[0x86f7fd4]
llc(llvm::SelectionDAGISel::BuildSelectionDAG(llvm::SelectionDAG&,
llvm::BasicBlock*, std::vector<std::pair<llvm::MachineInstr*, unsigned int>,
std::allocator<std::pair<llvm::MachineInstr*, unsigned int> > >&,
llvm::FunctionLoweringInfo&)+0x14a)[0x86dd654]
llc(llvm::SelectionDAGISel::SelectBasicBlock(llvm::BasicBlock*,
llvm::MachineFunction&, llvm::FunctionLoweringInfo&)+0xa0)[0x86de0f4]
llc(llvm::SelectionDAGISel::runOnFunction(llvm::Function&)+0x11f)[0x86dfd2f]
llc[0x859eba3]
llc(llvm::FPPassManager::runOnFunction(llvm::Function&)+0x13a)[0x88ecae8]
llc(llvm::FunctionPassManagerImpl::run(llvm::Function&)+0x6e)[0x88ecd6c]
llc(llvm::FunctionPassManager::run(llvm::Function&)+0x88)[0x88eceba]
llc(main+0x97d)[0x842831d]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7c90ebc]
llc[0x8426a71]
Aborted (core dumped)
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