[llvm-dev] Get the variable size and count from AllocaInst IR instruction

Dipanjan Das via llvm-dev llvm-dev at lists.llvm.org
Fri Jun 9 23:49:01 PDT 2017

Let's say we the following: AllocaInst *alloca_inst =
dyn_cast<AllocaInst>(&I) // I = instruction
Corresponding alloca instructions in IR are as follows:

%var1 = alloca [3 x i32], align 4
%var2 = alloca i32*, align 8

How can I have the size and count (in case of array) of the allocated


Thanks & Regards,
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