[LLVMdev] Re: how to code a loop in llvm assembly

[Reid Spencer]

FYI, in case you're wondering about the validity of this approach,
generating alloca instructions and relying on -mem2reg is what the C/C++
front ends do. It is a little more straight forward to code than
manually worrying about the PHI nodes. Either approach will work, take
your pick :)

Reid.

On Sat, 2006-04-15 at 09:13 -0500, Misha Brukman wrote:
> As others have pointed out, because LLVM is in SSA form, you will need
> to use a phi node.  To see how it would be written, try using the demo
> script as Oscar suggested, or you can do what you suggested (I would use
> alloca instead of malloc, though I think either should work) and then
> run it through "opt -mem2reg" to convert it to the phi-node form.
> 
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