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On Nov 29, 2011, at 10:24 AM, Borja Ferrer wrote: > Yes, I want the register to be allocatable when there are no stack frames used in the function so it can be used for other purposes. In fact, I looked at how other backends solve this problem, but they are all too conservative by always reserving the register which in my case it is not a good solution because of the performance impact of not

...way of doing this but it's working :) About your first question: the register has to be reserved throughout the whole function. Thanks for the help -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20111130/e510ab4e/attachment.html>

Yes, I want the register to be allocatable when there are no stack frames used in the function so it can be used for other purposes. In fact, I looked at how other backends solve this problem, but they are all too conservative by always reserving the register which in my case it is not a good solution because of the performance impact of not having this register available. I find very interesting