llvm dev - Mar 2012 - [LLVMdev] Target Data

Is it possible to change the widths of types independent of the
architecture? Or to reset the widths of types?

I haven't seen anything like this. Thanks.
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On Mar 21, 2012, at 5:57 PM, Ryan Taylor wrote:
> Is it possible to change the widths of types independent of the
architecture? Or to reset the widths of types?
> 
> I haven't seen anything like this. Thanks.
The datalayout string is required to match the target, if it exists:
http://llvm.org/docs/LangRef.html#datalayout

You can't control it to change how things are laid out.

-Chris

I see, thanks.

However, if I -emit-llvm and then append the "target datalayout"
string
(then operate on that emitted llvm), I can then change the data type sizes
and alignments, correct?

Thanks.

On Thu, Mar 22, 2012 at 2:25 PM, Chris Lattner <clattner at apple.com>
wrote:
>
> On Mar 21, 2012, at 5:57 PM, Ryan Taylor wrote:
>
> > Is it possible to change the widths of types independent of the
> architecture? Or to reset the widths of types?
> >
> > I haven't seen anything like this. Thanks.
>
> The datalayout string is required to match the target, if it exists:
> http://llvm.org/docs/LangRef.html#datalayout
>
> You can't control it to change how things are laid out.
>
> -Chris
>
>
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