[LLVMdev] Quick doubt about IR

[Mingliang LIU]

Hi,

I wonder why the type of %arr is i8, instead of i32 in your code?

Thanks,
Mingliang


On Thu, Dec 5, 2013 at 5:40 AM, Shivam Bhagi <shivam.bhagi at outlook.com>wrote:

> Hi,
>
> While looking over the IR generated by my source code, I came across the
> following:
>
> %arr = alloca [30 x i8], align 1
>
> In the source code this particular line of code is represented by:
>
> int arr[30];
>
> I was wondering how I could change the capacity of arr from 30 to any
> other integral value via a function-pass. I know that 'alloca' can be used
> for reserving space on stack; further, 'store' can be used for writing to
> memory. I was wondering how that would work for an array though?
>
> Thanks,
> Shivam
>
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-- 
Mingliang LIU (刘明亮 in Chinese)

PACMAN Group,  Tsinghua University
Email: liuml07 at mails.tsinghua.edu.cn
Homepage: http://pacman.cs.tsinghua.edu.cn/~liuml07/
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