[LLVMdev] MCJIT

[Ashok Nalkund]

On 5/14/2012 9:18 AM, Jim Grosbach wrote:
>
> On May 14, 2012, at 9:07 AM, Ashok Nalkund<ashoknn at qualcomm.com>  wrote:
>
>> I was able to get past the error by calling InitializeNativeTargetAsmParser() in my code. Now I have a failure in resolving external libraries, so looking into that (recompiled with --enable-ffi but I now get an error LLVMgold.so not found).
>>
>> Then I hda to disable the following code in lib/Target/X86/X86CodeEmitter.cpp:
>>>       case TargetOpcode::INLINEASM:
>>>         // We allow inline assembler nodes with empty bodies - they can
>>>         // implicitly define registers, which is ok for JIT.
>>>         //if (MI.getOperand(0).getSymbolName()[0])
>>>         //  report_fatal_error("in X86CodeEmitter.cpp JIT does not support inline asm!");
>>>         break;
>>
>> otherwise, when it sees a non-zero char in the inline asm (say load) and report failure and die.
>
> If you're hitting that code, you're running the old JIT (which does indeed not support inline assembly), not the MCJIT.
>

Do I need to enable anything at configure, my configure looks like this:
> ../llvm/configure --enable-libffi --enable-targets=host-only --prefix=/local/mnt/workspace/ashoknn/crd/neo/llvm/proto/llvmsvn/build/bin

I added the enable-libffi when trying to figure out resolving external libs.

thanks,
ashok