[llvm-bugs] [Bug 51789] New: NVPTX crash on i128

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51789

            Bug ID: 51789
           Summary: NVPTX crash on i128
           Product: libraries
           Version: 12.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: Backend: PTX
          Assignee: unassignedbugs at nondot.org
          Reporter: lightborn at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 25239
  --> https://bugs.llvm.org/attachment.cgi?id=25239&action=edit
bitcode with CUDA code

Run llc on attached bitcode. 

The i128 type is unsupported in the NVPTX printer. I was unable to create a
smaller test case, but at least the error seems very straightfoward. i128 works
in other contexts, but not this one.


unsupported integer const type
UNREACHABLE executed at
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:1845!
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace.
Stack dump:
0.      Program arguments: ../llvm-build-debug/bin/llc fmt.bc
1.      Running pass 'Function Pass Manager' on module 'fmt.bc'.
2.      Running pass 'NVPTX Assembly Printer' on function '@_Z7kernelsnn'
 #0 0x000000000481ee7c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
/home/sean/projects/circle4/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:11
 #1 0x000000000481f04b PrintStackTraceSignalHandler(void*)
/home/sean/projects/circle4/llvm-project/llvm/lib/Support/Unix/Signals.inc:632:1
 #2 0x000000000481ce76 llvm::sys::RunSignalHandlers()
/home/sean/projects/circle4/llvm-project/llvm/lib/Support/Signals.cpp:70:5
 #3 0x000000000481f847 SignalHandler(int)
/home/sean/projects/circle4/llvm-project/llvm/lib/Support/Unix/Signals.inc:407:1
 #4 0x00007f620c9d43c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #5 0x00007f620c49918b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #6 0x00007f620c478859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #7 0x00000000047465e0 llvm::install_out_of_memory_new_handler()
/home/sean/projects/circle4/llvm-project/llvm/lib/Support/ErrorHandling.cpp:183:0
 #8 0x00000000020cfd20 llvm::NVPTXAsmPrinter::bufferLEByte(llvm::Constant
const*, int, llvm::NVPTXAsmPrinter::AggBuffer*)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:0:7
 #9 0x00000000020cf35f
llvm::NVPTXAsmPrinter::bufferAggregateConstant(llvm::Constant const*,
llvm::NVPTXAsmPrinter::AggBuffer*)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:1939:63
#10 0x00000000020d0122 llvm::NVPTXAsmPrinter::bufferLEByte(llvm::Constant
const*, int, llvm::NVPTXAsmPrinter::AggBuffer*)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:1889:11
#11 0x00000000020cf0f5
llvm::NVPTXAsmPrinter::bufferAggregateConstant(llvm::Constant const*,
llvm::NVPTXAsmPrinter::AggBuffer*)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:1922:63
#12 0x00000000020cda1d
llvm::NVPTXAsmPrinter::printModuleLevelGV(llvm::GlobalVariable const*,
llvm::raw_ostream&, bool)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:1188:11
#13 0x00000000020c8df9 llvm::NVPTXAsmPrinter::emitGlobals(llvm::Module const&)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:828:5
#14 0x00000000020c8646 llvm::NVPTXAsmPrinter::emitFunctionEntryLabel()
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:448:5
#15 0x000000000316a94c llvm::AsmPrinter::emitFunctionHeader()
/home/sean/projects/circle4/llvm-project/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:787:3
#16 0x000000000316bcd3 llvm::AsmPrinter::emitFunctionBody()
/home/sean/projects/circle4/llvm-project/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:1160:3
#17 0x0000000001c0e74c
llvm::AsmPrinter::runOnMachineFunction(llvm::MachineFunction&)
/home/sean/projects/circle4/llvm-project/llvm/include/llvm/CodeGen/AsmPrinter.h:345:5
#18 0x00000000020c9d27
llvm::NVPTXAsmPrinter::runOnMachineFunction(llvm::MachineFunction&)
/home/sean/projects/circle4/llvm-project/llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp:482:8
#19 0x000000000355009f
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
/home/sean/projects/circle4/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:72:8
#20 0x0000000003c3ebe4 llvm::FPPassManager::runOnFunction(llvm::Function&)
/home/sean/projects/circle4/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1435:27
#21 0x0000000003c44fb5 llvm::FPPassManager::runOnModule(llvm::Module&)
/home/sean/projects/circle4/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1481:16
#22 0x0000000003c3f7bf (anonymous
namespace)::MPPassManager::runOnModule(llvm::Module&)
/home/sean/projects/circle4/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1550:27
#23 0x0000000003c3f1c5 llvm::legacy::PassManagerImpl::run(llvm::Module&)
/home/sean/projects/circle4/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:541:16
#24 0x0000000003c452f1 llvm::legacy::PassManager::run(llvm::Module&)
/home/sean/projects/circle4/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1677:3
#25 0x0000000000e2d481 compileModule(char**, llvm::LLVMContext&)
/home/sean/projects/circle4/llvm-project/llvm/tools/llc/llc.cpp:684:8
#26 0x0000000000e2abff main
/home/sean/projects/circle4/llvm-project/llvm/tools/llc/llc.cpp:385:22
#27 0x00007f620c47a0b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#28 0x0000000000e2a1be _start (../llvm-build-debug/bin/llc+0xe2a1be)

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