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...en able to learn by example. If I’m not mistaken, try grepping for DYNALLOC; that should point you to how a number of targets implement allocas. —escha -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20170131/e74d98a3/attachment.html>

For a long time we have had code for custom lowering of adjustments to the stack pointer. But until recently we did not realise that we were handling only places that provided a fixed-value for such adjustments, and the ISD nodes 'ADJCALLSTACKDOWN' and 'ADJCALLSTACKUP' are only described in our TableGen descriptions for immediates. This hasn't previous mattered as LLVM