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On Oct 16, 2009, at 5:50 AM, Nicolas Capens wrote: > Hi all, > > While profiling I discovered that the Function::getIntrinsicID() > method is called a lot, and every time it uses string comparison to > recompute the ID number. As far as I know the name of an intrinsic > function doesn’t change, so the ID could be determined just once at > Function construction time.

...wever, this would be a great thing to have. Instead of adding a new field, is there space in the "SubClassData" field in Value? -Chris -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20091018/aad14a53/attachment.html>

Hi all, While profiling I discovered that the Function::getIntrinsicID() method is called a lot, and every time it uses string comparison to recompute the ID number. As far as I know the name of an intrinsic function doesn't change, so the ID could be determined just once at Function construction time. I've attached a patch that does this and it appears to work for the code I