llvm dev - Jan 2011 - [LLVMdev] How to create an IntegerType of the native word size

Hi all,

I couldn't find any reasonable way to create the IntegerType that would
match, say, intptr_t, that is the native word size of the machine I'm
building on. More accurately defined, when compiling on a 64 bit Mac OS
machine I want it to be Int64Ty, but if for example I'm using the
"-arch
i386" command line option on that machine during compilation, I want it to
be Int32Ty.

I'm sure that has to be some perfect solution out there, does anyone know?


Thanks!

Harel Cain
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Hi Harel Cain,
> I couldn't find any reasonable way to create the IntegerType that would
match,
> say, intptr_t, that is the native word size of the machine I'm building
on. More
> accurately defined, when compiling on a 64 bit Mac OS machine I want it to
be
> Int64Ty, but if for example I'm using the "-arch i386"
command line option on
> that machine during compilation, I want it to be Int32Ty.
>
> I'm sure that has to be some perfect solution out there, does anyone
know?
try the getIntPtrType method defined in TargetData.  It is defined in TargetData
because you need to know the target in order to know the size of a pointer.

Ciao, Duncan.

hi,

You may try TargetData's "getIntPtrType" for intptr_t.

best regards
ether

On Mon, Jan 24, 2011 at 5:56 PM, Harel Cain <harel.cain at gmail.com>
wrote:
> Hi all,
>
> I couldn't find any reasonable way to create the IntegerType that would
> match, say, intptr_t, that is the native word size of the machine I'm
> building on. More accurately defined, when compiling on a 64 bit Mac OS
> machine I want it to be Int64Ty, but if for example I'm using the
"-arch
> i386" command line option on that machine during compilation, I want
it to
> be Int32Ty.
>
> I'm sure that has to be some perfect solution out there, does anyone
know?
>
>
> Thanks!
>
> Harel Cain
>
>
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