Comment # 2
on bug 66331
from Dieter Nützel
(In reply to comment #1) > With current Mesa CVS (10.0.0! ;-) on RV730 AGP I get this,too. > > Pure LLVM (3.3 stable) bug, NOT sb. > > setenv R600_DEBUG nollvm > Works OK. > > Nice link, Grigori! > > Application: konqueror (4.11.2) > KDE Platform Version: 4.11.2 > Qt Version: 4.8.5 > Operating System: Linux 3.12.0-rc3-1-desktop i686 > Distribution: "openSUSE 12.3 (i586)" Hopefully better (with LLVM source) trace run: Program received signal SIGSEGV, Segmentation fault. llvm::ScheduleDAGInstrs::addVRegUseDeps (this=0x0, SU=0xffffffff, OperIdx=<optimized out>) at /usr/src/debug/llvm-3.3/lib/CodeGen/ScheduleDAGInstrs.cpp:414 414 LiveRangeQuery LRQ(LIS->getInterval(Reg), LIS->getInstructionIndex(MI)); (gdb) list 409 MachineInstr *MI = SU->getInstr(); 410 unsigned Reg = MI->getOperand(OperIdx).getReg(); 411 412 // Lookup this operand's reaching definition. 413 assert(LIS && "vreg dependencies requires LiveIntervals"); 414 LiveRangeQuery LRQ(LIS->getInterval(Reg), LIS->getInstructionIndex(MI)); 415 VNInfo *VNI = LRQ.valueIn(); 416 417 // VNI will be valid because MachineOperand::readsReg() is checked by caller. 418 assert(VNI && "No value to read by operand"); (gdb) info registers eax 0xad55d20 181755168 ecx 0x0 0 edx 0x0 0 ebx 0xad33d000 -1389113344 esp 0xbfff6f40 0xbfff6f40 ebp 0x0 0x0 esi 0xad441f8 181682680 edi 0xad55d20 181755168 eip 0xad2e747d 0xad2e747d <llvm::ScheduleDAGInstrs::addVRegUseDeps(llvm::SUnit*, unsigned int)+77> eflags 0x210246 [ PF ZF IF RF ID ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x33 51 (gdb) bt #0 llvm::ScheduleDAGInstrs::addVRegUseDeps (this=0x0, SU=0xffffffff, OperIdx=<optimized out>) at /usr/src/debug/llvm-3.3/lib/CodeGen/ScheduleDAGInstrs.cpp:414 #1 0xad2e9890 in llvm::ScheduleDAGInstrs::buildSchedGraph (this=0xad55d20, AA=<optimized out>, RPTracker=0x700) at /usr/src/debug/llvm-3.3/lib/CodeGen/ScheduleDAGInstrs.cpp:776 #2 0xad21a4dc in llvm::DefaultVLIWScheduler::schedule (this=0xad55d20) at /usr/src/debug/llvm-3.3/lib/CodeGen/DFAPacketizer.cpp:124 #3 0xad21a7c9 in llvm::VLIWPacketizerList::PacketizeMIs (this=0xbfff7368, MBB=<optimized out>, BeginItr=..., EndItr=...) at /usr/src/debug/llvm-3.3/lib/CodeGen/DFAPacketizer.cpp:164 #4 0xad90f426 in llvm::R600Packetizer::runOnMachineFunction (this=<optimized out>, Fn=...) at /usr/src/debug/llvm-3.3/lib/Target/R600/R600Packetizer.cpp:444 #5 0xad27cbb5 in llvm::MachineFunctionPass::runOnFunction (this=0xac81dd0, F=...) at /usr/src/debug/llvm-3.3/lib/CodeGen/MachineFunctionPass.cpp:33 #6 0xacdb7307 in llvm::FPPassManager::runOnFunction (this=0x36, F=...) at /usr/src/debug/llvm-3.3/lib/IR/PassManager.cpp:1530 #7 0xacdb7530 in llvm::FPPassManager::runOnModule (this=0xaba13d8, M=...) at /usr/src/debug/llvm-3.3/lib/IR/PassManager.cpp:1550 #8 0xacdb77d9 in llvm::MPPassManager::runOnModule (this=0xac6db08, M=...) at /usr/src/debug/llvm-3.3/lib/IR/PassManager.cpp:1608 #9 0xacdb7fa1 in llvm::PassManagerImpl::run (this=0xac6a1e0, M=...) at /usr/src/debug/llvm-3.3/lib/IR/PassManager.cpp:1703 #10 0xacdb8157 in llvm::PassManager::run (this=0xbfff7578, M=...) at /usr/src/debug/llvm-3.3/lib/IR/PassManager.cpp:1738 #11 0xacea2651 in LLVMTargetMachineEmit (T=<optimized out>, M=0xaaed0c0, OS=..., codegen=<optimized out>, ErrorMessage=<optimized out>) at /usr/src/debug/llvm-3.3/lib/Target/TargetMachineC.cpp:194 #12 0xacea27a3 in LLVMTargetMachineEmitToMemoryBuffer (T=0xac68280, M=0xaaed0c0, codegen= LLVMObjectFile, ErrorMessage=0xbfff7640, OutMemBuf=<optimized out>) at /usr/src/debug/llvm-3.3/lib/Target/TargetMachineC.cpp:220 #13 0xade1c7d6 in radeon_llvm_compile () from /usr/lib/dri/updates/r600_dri.so ---Type <return> to continue, or q <return> to quit--- #14 0xade173e2 in r600_llvm_compile () from /usr/lib/dri/updates/r600_dri.so #15 0xaddc80f7 in r600_shader_from_tgsi () from /usr/lib/dri/updates/r600_dri.so #16 0xaddc9335 in r600_pipe_shader_create () from /usr/lib/dri/updates/r600_dri.so #17 0xadddadfd in r600_shader_select () from /usr/lib/dri/updates/r600_dri.so #18 0xadddafb4 in r600_create_shader_state () from /usr/lib/dri/updates/r600_dri.so #19 0xadbd4413 in st_translate_fragment_program () from /usr/lib/dri/updates/r600_dri.so #20 0xadbd4fd6 in st_get_fp_variant () from /usr/lib/dri/updates/r600_dri.so #21 0xadb9ccfc in update_fp () from /usr/lib/dri/updates/r600_dri.so #22 0xadb9997e in st_validate_state () from /usr/lib/dri/updates/r600_dri.so #23 0xadbaea9c in st_draw_vbo () from /usr/lib/dri/updates/r600_dri.so #24 0xadb82745 in vbo_handle_primitive_restart () from /usr/lib/dri/updates/r600_dri.so #25 0xadb84247 in vbo_validated_drawrangeelements () from /usr/lib/dri/updates/r600_dri.so #26 0xadb8462c in vbo_exec_DrawElements () from /usr/lib/dri/updates/r600_dri.so #27 0xb2775b9f in ?? () from /usr/lib/libQtWebKit.so.4 #28 0xb27661f5 in ?? () from /usr/lib/libQtWebKit.so.4 #29 0xb292f430 in ?? () from /usr/lib/libQtWebKit.so.4 #30 0xb2e1d92b in ?? () from /usr/lib/libQtWebKit.so.4 #31 0xb2e03109 in ?? () from /usr/lib/libQtWebKit.so.4 #32 0xfffffffb in ?? () #33 0xb2ea305e in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) () from /usr/lib/libQtWebKit.so.4 #34 0xb0b5ea4c in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?)
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