[LLVMdev] Transferring value* in LLVM

[Yakov Malinkovich]

So what do you think the problem is?
Thank you.
Yakov


On Mon, Nov 14, 2011 at 10:20 PM, Duncan Sands <baldrick at free.fr> wrote:

> On 14/11/11 21:11, Yakov Malinkovich wrote:
>
>> Here is the error that I get:
>> Assertion failed: (i >= FTy->getNumParams() || FTy->getParamType(i) ==
>> Params[i]->getType()) && "Calling a function with a bad signature!"
>>
>
> That's not being generated by the CreateCast, so it looks like your
> description
> of the problem was quite misleading.
>
> Ciao, Duncan.
>
>  Yakov
>>
>>
>> On Mon, Nov 14, 2011 at 9:05 PM, Eric Christopher <echristo at apple.com
>> <mailto:echristo at apple.com>> wrote:
>>
>>    You'll probably need to dump both the source and the dest and show the
>> code
>>    that's being generated. A lot of guessing here that's not getting us
>> very
>>    far very fast.
>>
>>    -eric
>>
>>
>>    On Nov 14, 2011, at 10:56 AM, Yakov Malinkovich wrote:
>>
>>     yes - i checked that the src->getType()->isFloatTy() is true
>>>    Yakov
>>>
>>>
>>>    On Mon, Nov 14, 2011 at 8:24 PM, Duncan Sands <baldrick at free.fr
>>>    <mailto:baldrick at free.fr>> wrote:
>>>
>>>        On 14/11/11 19:20, Yakov Malinkovich wrote:
>>>
>>>            I sure that is.
>>>
>>>
>>>        Did you test it?  Can you do: src->getType()->isFloatTy()
>>>
>>>
>>>        What could be other reasons for such error?
>>>
>>>        The only other possibility I can think of is that src was created
>>>        using a different context.
>>>
>>>        Ciao, Duncan.
>>>
>>>            Yakov
>>>
>>>
>>>            On Mon, Nov 14, 2011 at 5:44 PM, Duncan Sands <
>>> baldrick at free.fr
>>>            <mailto:baldrick at free.fr>
>>>            <mailto:baldrick at free.fr <mailto:baldrick at free.fr>>> wrote:
>>>
>>>               On 14/11/11 16:39, Yakov Malinkovich wrote:
>>>
>>>                   It doesnt work it fails with assertation that cast is
>>>            invalid .What
>>>                   could be done?
>>>
>>>
>>>               Maybe src doesn't have Float type?
>>>
>>>               Ciao, Duncan.
>>>
>>>
>>>
>>>
>>>                   On 11/14/11, Duncan Sands<baldrick at free.fr
>>>            <mailto:baldrick at free.fr> <mailto:baldrick at free.fr
>>>
>>>            <mailto:baldrick at free.fr>>>
>>>
>>>                     wrote:
>>>
>>>                       Hi Yakov, that looks correct to me.  You can also
>>> use
>>>            CreateFPExt
>>>                       which is
>>>                       slightly simpler.
>>>
>>>                       Ciao, Duncan.
>>>
>>>
>>>                           I want to transfer value (Value* src) of the
>>> type
>>>            `FloatTyID` to
>>>                           `DoubleTyID`(I
>>>                           need all floats to be saved as 8 bytes).I have
>>> tried:
>>>
>>>                                 builder.CreateCast(llvm::
>>> Instruction::FPExt,
>>>            src,
>>>                           llvm::Type::getDoubleTy( llvmContext),””)
>>>
>>>
>>>                           I don`t know if I use CreateCast correctly
>>>  and if
>>>            this approach is
>>>                           correct at all.
>>>
>>>                           Thank you.
>>>
>>>                           Yakov
>>>
>>>
>>>
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>>
>>
>>
>
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