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...t; this behaviour changed sometime around the LLVM 3.0 release? I have not > been able to find much history. > > Thanks again, > Cameron > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121023/427ed08e/attachment.html>

> In trunk, the frame pointer is always set up when an AVX register is used in > a function. This is done in case 32-byte spill code is later introduced into > the function and hence dynamic stack realignment is needed. Needless to say, > it's a big hammer. This regression seems particularly painful in > small-to-medium sized routines that are called frequently in some codes.

On Mon, Oct 22, 2012 at 5:49 PM, Eric Christopher <echristo at gmail.com>wrote: > > In trunk, the frame pointer is always set up when an AVX register is > used in > > a function. This is done in case 32-byte spill code is later introduced > into > > the function and hence dynamic stack realignment is needed. Needless to > say, > > it's a big hammer. This