[LLVMdev] Explicitly Freeing Allocas

Frits van Bommel fvbommel at wxs.nl
Thu Jun 18 09:19:35 PDT 2009

Nyx wrote:
[re: llvm.stacksave & stackrestore]
> What kind of overhead does that have? Does it only restore the stack pointer
> to what it was (what I want), or does it do more than that, and try to
> restore values that were on the stack prior to save, etc?

It basically just copies and restores the stack pointer, though I guess the 
langref isn't exactly very clear on that point.

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