[LLVMdev] IO intrinsics?

[Duncan Sands]

Hi Hans,

> I found these lines in the BrainF example:
>
>
>        //declare i32 @getchar()
>        getchar_func = cast<Function>(module->
>          getOrInsertFunction("getchar", IntegerType::getInt32Ty(C), NULL));
>
>        //declare i32 @putchar(i32)
>        putchar_func = cast<Function>(module->
>          getOrInsertFunction("putchar", IntegerType::getInt32Ty(C),
>                              IntegerType::getInt32Ty(C), NULL));
>
>
>
>
> Since getchar and putchar are never defined, I'm assuming they are intrinsics,

no, they are the C standard library functions putchar and getchar.

Ciao, Duncan.