[LLVMdev] a basic question about BB

[Chris Lattner]

> Dear LLVM,
>
> I want to know, given a function,  How do I know which block is entry
> block, which blocks are exit blocks? Is there any efficient way to
> dicectly get that information?

Given a function you can always use Function::getEntryBlock() to get the
entry block.  You need to scan the function to get the returning nodes.

-Chris "llvm" Lattner

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