llvm dev - Mar 2011 - [LLVMdev] cross compiling to sparc with llvm

Hi,

I'm trying to use llvm/clang to cross compile to sparcv9.  The following
works with a -march=sparc, but yields errors for sparcv9.  Are there some
other flags that need to be specified?

Thanks,
Tarun
> clang -m64 -emit-llvm test.c -c -o test.bc
> llc -march=sparcv9 test.bc -o hello.s
ExpandIntegerResult #0: 0x8a6c478: i64 = GlobalAddress<[4 x i8]* @.str> 0
[ORD=1] [ID=0]

Do not know how to expand the result of this operator!
UNREACHABLE executed at
~/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:947!
0  libLLVM-2.8svn.so 0xf6f82ef8
1  libLLVM-2.8svn.so 0xf6f82d90
2                    0xf776c400 __kernel_sigreturn + 0
3  libc.so.6         0xf5a1cd52 abort + 386
4  libLLVM-2.8svn.so 0xf6f56ee9
5  libLLVM-2.8svn.so 0xf6e43cf2
6  libLLVM-2.8svn.so 0xf6e5206a
7  libLLVM-2.8svn.so 0xf6e5615a llvm::SelectionDAG::LegalizeTypes() + 68
8  libLLVM-2.8svn.so 0xf6ef3a58 llvm::SelectionDAGISel::CodeGenAndEmitDAG()
+ 1022
9  libLLVM-2.8svn.so 0xf6ef312f
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 219
10 libLLVM-2.8svn.so 0xf6ef4f8a
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 1476
11 libLLVM-2.8svn.so 0xf6ef2874
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 600
12 libLLVM-2.8svn.so 0xf691cae1
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 87
13 libLLVM-2.8svn.so 0xf6af88b1
llvm::FPPassManager::runOnFunction(llvm::Function&) + 313
14 libLLVM-2.8svn.so 0xf6af8a6b
llvm::FPPassManager::runOnModule(llvm::Module&) + 109
15 libLLVM-2.8svn.so 0xf6af8d56
llvm::MPPassManager::runOnModule(llvm::Module&) + 400
16 libLLVM-2.8svn.so 0xf6af920c llvm::PassManagerImpl::run(llvm::Module&) +
122
17 libLLVM-2.8svn.so 0xf6af96fd llvm::PassManager::run(llvm::Module&) + 39
18 llc               0x0805894a main + 2268
19 libc.so.6         0xf5a05bd6 __libc_start_main + 230
20 llc               0x08057761
Stack dump:
0. Program arguments: llc -march=sparcv9 test.bc -o hello.s
1. Running pass 'Function Pass Manager' on module 'test.bc'.
2. Running pass 'SPARC DAG->DAG Pattern Instruction Selection' on
function
'@main'
Aborted
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20110329/1b008a4c/attachment.html>

Hi Tarun,
> I'm trying to use llvm/clang to cross compile to sparcv9.  The
following works
> with a -march=sparc, but yields errors for sparcv9.  Are there some other
flags
> that need to be specified?
>
> Thanks,
> Tarun
>
>  > clang -m64 -emit-llvm test.c -c -o test.bc
this is not the right way to cross-compile because all headers, macros etc will
be for your host machine (eg: endianness, size of integer types, inline asm and
so on) not for the target machine.

Ciao, Duncan.

PS: Hopefully a clanger will explain the right way to cross-compile.
>  > llc -march=sparcv9 test.bc -o hello.s
> ExpandIntegerResult #0: 0x8a6c478: i64 = GlobalAddress<[4 x i8]*
@.str> 0
> [ORD=1] [ID=0]
>
> Do not know how to expand the result of this operator!
> UNREACHABLE executed at
> ~/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:947!
> 0 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6f82ef8
> 1 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6f82d90
> 2                    0xf776c400 __kernel_sigreturn + 0
> 3  libc.so.6         0xf5a1cd52 abort + 386
> 4 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6f56ee9
> 5 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6e43cf2
> 6 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6e5206a
> 7 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6e5615a
> llvm::SelectionDAG::LegalizeTypes() + 68
> 8 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6ef3a58
> llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 1022
> 9 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6ef312f
>
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
> const>, llvm::ilist_iterator<llvm::Instruction const>, bool&)
+ 219
> 10 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6ef4f8a
> llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) +
1476
> 11 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6ef2874
> llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) +
600
> 12 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf691cae1
> llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 87
> 13 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6af88b1
> llvm::FPPassManager::runOnFunction(llvm::Function&) + 313
> 14 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6af8a6b
> llvm::FPPassManager::runOnModule(llvm::Module&) + 109
> 15 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6af8d56
> llvm::MPPassManager::runOnModule(llvm::Module&) + 400
> 16 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6af920c
> llvm::PassManagerImpl::run(llvm::Module&) + 122
> 17 libLLVM-2.8svn.so <http://libLLVM-2.8svn.so> 0xf6af96fd
> llvm::PassManager::run(llvm::Module&) + 39
> 18 llc               0x0805894a main + 2268
> 19 libc.so.6         0xf5a05bd6 __libc_start_main + 230
> 20 llc               0x08057761
> Stack dump:
> 0.Program arguments: llc -march=sparcv9 test.bc -o hello.s
> 1.Running pass 'Function Pass Manager' on module 'test.bc'.
> 2.Running pass 'SPARC DAG->DAG Pattern Instruction Selection' on
function '@main'
> Aborted
>
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev