[LLVMdev] Explicitly Freeing Allocas
Frits van Bommel
fvbommel at wxs.nl
Thu Jun 18 09:19:35 PDT 2009
[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.
More information about the llvm-dev