[llvm-dev] Replace "while" "for" loops with "If-Else"

[Shen Liu via llvm-dev]

Hi everyone,

I hope to implement a feature to transform an IR with "while" or "for"
loops to a new IR with no loop. Instead, I just want to use if-else
statements in the new IR to implement the original semantics.

I can easily write a transform pass to handle the 1-level loop case, but
for nested loops it seems a little harder.

Can you show me some hints? Thank you very much!

Best regards,

Shen
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