CODEWITHSUNDEEP
llvmllvm-c++-api
Denis
Denis

Reputation: 301

LLVM: Constant variables

How can I get all the variables (from bytecode file or IR file) with const modifier or the variables that are not changed due execution? I need to make list for further use.

Upvotes: 2

Views: 2315

Answers (1)

Eli Bendersky
Eli Bendersky

Reputation: 273366

I'm not sure you can get what you want directly because const is a C/C++ semantic that's useful for Clang but much less so for LLVM. Only some const promises are preserved (for example the readonly attribute on pointer function arguments - see the language reference for details).

LLVM IR level "constants" are something entirely different, and usually refer to actually constant (compile-time known) values that can be efficiently uniqued, etc. Read this documentation for the full scoop.

Upvotes: 1

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