[LLVMdev] Getting size of array allocations

aashays aashay.shringarpure at gatech.edu
Mon Apr 5 19:27:11 PDT 2010


Pardon me if the terminology I use is off, I'm new to this.
Given a statement 
int a[10];
llvm-gcc generates the following alloca instruction:
%a = alloca [10 x i32]
This is different than the type of instruction generated by the AllocaInst
constructor, which is of the type:
%a = alloca i32, i32 10

Now, how do I go about extracting '10' as the array size from the first
alloca instruction? isArrayAllocation returns false and getArraySize returns

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