SPARC backend crashes when emitting dwarf debug information from dbg_value #9368
Description
| Bugzilla Link | 8996 |
| Resolution | FIXED |
| Resolved on | Oct 26, 2011 14:48 |
| Version | trunk |
| OS | Solaris |
| Attachments | testcase |
| Reporter | LLVM Bugzilla Contributor |
Extended Description
When generating code for the attached file, SPARC backend crashes. (See below) The crash occurs because DwarfDebug::addVariableAddress calls TFI->getFrameIndexReference() with the immediate value from a DBG_VALUE instruction. But the frame index is already eliminated by the PEI pass.
llc -march=sparc test/CodeGen/SPARC/bugpoint-reduced-simplified.ll
llc: ../llvm/include/llvm/CodeGen/MachineFrameInfo.h:373: int64_t llvm::MachineFrameInfo::getObjectOffset(int) const: Assertion `unsigned(ObjectIdx+NumFixedObjects) < Objects.size() && "Invalid Object Idx!"' failed.
1 llc 0x000000000133fb0c
2 libpthread.so.0 0x000000344bc0eb10
3 libc.so.6 0x000000344b030265 gsignal + 53
4 libc.so.6 0x000000344b031d10 abort + 272
5 libc.so.6 0x000000344b0296e6 __assert_fail + 246
6 llc 0x0000000000a0b608 llvm::MachineFrameInfo::getObjectOffset(int) const + 94
7 llc 0x00000000011af86d llvm::TargetFrameLowering::getFrameIndexOffset(llvm::MachineFunction const&, int) const + 45
8 llc 0x00000000011af722 llvm::TargetFrameLowering::getFrameIndexReference(llvm::MachineFunction const&, int, unsigned int&) const + 112
9 llc 0x0000000000ebdf2d llvm::DwarfDebug::addVariableAddress(llvm::DbgVariable*&, llvm::DIE*, long) + 113
10 llc 0x0000000000ebe546 llvm::DwarfDebug::constructVariableDIE(llvm::DbgVariable*, llvm::DbgScope*) + 1424
11 llc 0x0000000000ebe99e llvm::DwarfDebug::constructScopeDIE(llvm::DbgScope*) + 604
12 llc 0x0000000000ebea02 llvm::DwarfDebug::constructScopeDIE(llvm::DbgScope*) + 704
13 llc 0x0000000000ebee64 llvm::DwarfDebug::endFunction(llvm::MachineFunction const*) + 972
14 llc 0x0000000000eab6a4 llvm::AsmPrinter::EmitFunctionBody() + 2080
15 llc 0x0000000000a082e1 llvm::AsmPrinter::runOnMachineFunction(llvm::MachineFunction&) + 47
16 llc 0x0000000000f41e8b llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 85
17 llc 0x0000000001279ce2 llvm::FPPassManager::runOnFunction(llvm::Function&) + 350
18 llc 0x0000000001279eb7 llvm::FPPassManager::runOnModule(llvm::Module&) + 81
19 llc 0x00000000012799a3 llvm::MPPassManager::runOnModule(llvm::Module&) + 381
20 llc 0x000000000127b133 llvm::PassManagerImpl::run(llvm::Module&) + 111
21 llc 0x000000000127b195 llvm::PassManager::run(llvm::Module&) + 33
22 llc 0x00000000009970e7 main + 2201
23 libc.so.6 0x000000344b01d994 __libc_start_main + 244
24 llc 0x0000000000995949
Stack dump:
0. Program arguments: llc -march=sparc
-
Running pass 'Function Pass Manager' on module '<stdin>'. -
Running pass 'Sparc Assembly Printer' on function '@CheckReliabilityOfRef'
Aborted