[llvm-dev] Running DCE after my pass

[Tehila Mayzels via llvm-dev]

Hi,

 

I wrote an IR pass and it adds some instructions that are not used.

For example:

 

%1 = call i64 @foo()

 

When %1 is not used at all.

 

I thought that running DCE (-dce) or DIE (-die) after my pass will remove
such instructions, but it didn't.

 

Why? And is there a way to do that?

 

Thanks,

Tehila.

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