[LLVMdev] Creating a global variable in JIT context

Russell Wallace russell.wallace at gmail.com
Tue Feb 16 07:00:09 PST 2010

Yes, the module specification and load instruction were exactly the
things I was missing. Thanks!

On Tue, Feb 16, 2010 at 1:09 PM, Victor Zverovich
<victor.zverovich at googlemail.com> wrote:
> Do you use load to get the value of V? If not then you probably return i32*
> instead of i32.
> Victor
> On 16 February 2010 11:26, Russell Wallace <russell.wallace at gmail.com>
> wrote:
>> I'm trying to create a global variable initialized to zero, and return
>> its value from a newly created function, in JIT context. I'm keeping
>> all types as i32 for the moment, and I only have the one module
>> object.
>> This is the code I have for creating the global variable:
>>        const Type *type = Type::getInt32Ty(getGlobalContext());
>> //      Constant *zerov = Constant::getNullValue(type);
>>        Constant *zerov = Constant::getIntegerValue(type, APInt(32, 0));
>>        V = new GlobalVariable(getGlobalContext(), type, 0,
>> GlobalValue::PrivateLinkage, zerov, name);
>> And these are the error messages given by verifyFunction:
>> Function return type does not match operand type of return inst!
>>  ret i32* @x i32Referencing global in another module!
>>  ret i32* @xBroken module found, compilation aborted!
>> Any idea of what I might be doing wrong? Is this the right way to be
>> going about it in the first place?
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