[LLVMdev] Quick doubt about IR

[Shivam Bhagi]

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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