[llvm-dev] How could I get some semantic information from IR?

[周书林 via llvm-dev]

I am working on my first llvm Pass to analyze some structure variables in
source code, but in IR, there are only getelementptr to calculate the
memory address to fetch the value of a specific member in the structure.
For example, when I try to get the member  name of Structure S in statement
"if(ss.aaaa == b)", where ss is a object of Structure S and b is an
integer,
[image: 内嵌图片 2]
[image: 内嵌图片 4]
I can only get the following IR structures, and the variable %aaaa1 is just
a temporary name
[image: 内嵌图片 1]

So, the problem is, how could I get the member name of a structure in IR?
more specific, how could I get the name "aaaa" while access to the
"ss.aaaa"?

Thanks a lot.
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