[LLVMdev] JIT compiler on ARM issue

[Dirkjan Bussink]

Hello all,

When using the JIT on ARM, I get the following error message. The code works fine on both X86 32 and 64 bit architectures.

rbx: /home/dirkjan/llvm-3.3.src/include/llvm/CodeGen/MachineOperand.h:260: unsigned int llvm::MachineOperand::getReg() const: Assertion `isReg() && "This is not a register operand!"' failed.

Program received signal SIGABRT, Aborted.
[Switching to Thread 0x74fff460 (LWP 652)]
__libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/eabi/libc-do-syscall.S:47
47	../ports/sysdeps/unix/sysv/linux/arm/eabi/libc-do-syscall.S: No such file or directory.
(gdb) bt 20
#0  __libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/eabi/libc-do-syscall.S:47
#1  0x76d89e92 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:67
#2  0x76d8c26c in __GI_abort () at abort.c:91
#3  0x76d85344 in __assert_fail_base (fmt=0x76e2d8c8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", 
    assertion=0xb2bc84 "isReg() && \"This is not a register operand!\"", file=0x76e4608c "", line=260, 
    function=0xb40964 "unsigned int llvm::MachineOperand::getReg() const") at assert.c:94
#4  0x76d853ca in __GI___assert_fail (assertion=0xb2bc84 "isReg() && \"This is not a register operand!\"", file=0x76e4608c "", line=2, 
    function=0x74fff460 "\001") at assert.c:103
#5  0x00151c62 in llvm::MachineOperand::getReg (this=<optimized out>)
    at /home/dirkjan/llvm-3.3.src/include/llvm/CodeGen/MachineOperand.h:260
#6  0x003d8998 in getReg (this=<optimized out>) at /home/dirkjan/llvm-3.3.src/include/llvm/CodeGen/MachineOperand.h:260
#7  (anonymous namespace)::ARMCodeEmitter::emitLoadStoreInstruction (this=0x74725b20, MI=..., ImplicitRd=3855757312, ImplicitRn=0)
    at ARMCodeEmitter.cpp:1171
#8  0x003dade2 in (anonymous namespace)::ARMCodeEmitter::emitInstruction (this=0x74725b20, MI=...) at ARMCodeEmitter.cpp:563
#9  0x003dc42e in (anonymous namespace)::ARMCodeEmitter::runOnMachineFunction (this=0x74725b20, MF=...) at ARMCodeEmitter.cpp:403
#10 0x00604c8a in llvm::MachineFunctionPass::runOnFunction (this=0x74725b20, F=...) at MachineFunctionPass.cpp:33
#11 0x00a0a7b6 in runOnFunction (F=..., this=0x7470cdc8) at PassManager.cpp:1530
#12 llvm::FPPassManager::runOnFunction (this=0x7470cdc8, F=...) at PassManager.cpp:1508
#13 0x00a0a86e in llvm::FunctionPassManagerImpl::run (this=0x7470cc38, F=...) at PassManager.cpp:1481
#14 0x00a0a9a8 in llvm::FunctionPassManager::run (this=0x74702ec8, F=...) at PassManager.cpp:1399
#15 0x005b613e in llvm::JIT::jitTheFunction (this=<optimized out>, F=<optimized out>, locked=...) at JIT.cpp:646
#16 0x005b6582 in llvm::JIT::runJITOnFunctionUnlocked (this=0x7470bf70, F=<optimized out>, locked=...) at JIT.cpp:625
#17 0x005b685a in llvm::JIT::runJITOnFunction (this=0x7470bf70, F=0x7472e648, MCI=<optimized out>) at JIT.cpp:616
#18 0x002e9d30 in rubinius::jit::Compiler::generate_function (this=0x74ffed58, indy=<optimized out>) at vm/llvm/jit_compiler.cpp:118
#19 0x002fd474 in rubinius::BackgroundCompilerThread::perform (this=0x12e0f18) at vm/llvm/state.cpp:346


I've tried looking for this error, but can't seem to find any more information on what the cause of this could be. Anyone in here who has any idea how to fix this and get it working? I can also get more debug information if that is needed to find the cause of this issue. 

-- 
Dirkjan

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